Relevant bibliographies by topics / Noninvasive diagnostic

Academic literature on the topic 'Noninvasive diagnostic'

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Published: 14 March 2023

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Journal articles on the topic "Noninvasive diagnostic"

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Tolkoff-Rubin, Nina E., Robert H. Rubin, and Joseph V. Bonventre. "Noninvasive Renal Diagnostic Studies." Clinics in Laboratory Medicine 8, no. 3 (September 1988): 507–26. http://dx.doi.org/10.1016/s0272-2712(18)30671-1.

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TSUGAWA, Ryotaro, Hideo UTSUNO, Shintaro NEMOTO, Hiroshi KATAYAMA, and Kanta KISHI. "Noninvasive diagnostic of Pulmonary hypertension." Proceedings of Conference of Kansai Branch 2019.94 (2019): P047. http://dx.doi.org/10.1299/jsmekansai.2019.94.p047.

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TSUGAWA, Ryotaro, and Hideo UTSUNO. "Noninvasive diagnostic of Pulmonary hypertension." Proceedings of Conference of Kansai Branch 2020.95 (2020): 05_513. http://dx.doi.org/10.1299/jsmekansai.2020.95.05_513.

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Maguire, Leo J. "Noninvasive Diagnostic Techniques in Ophthalmology." Mayo Clinic Proceedings 66, no. 2 (February 1991): 229–30. http://dx.doi.org/10.1016/s0025-6196(12)60507-2.

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TSUGAWA, Ryotaro, Hideo UTSUNO, Shintaro NEMOTO, Hiroshi KATAYAMA, and Kanta KISHI. "Noninvasive diagnostic of Pulmonary hypertension." Proceedings of Mechanical Engineering Congress, Japan 2018 (2018): G1000904. http://dx.doi.org/10.1299/jsmemecj.2018.g1000904.

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Eliason, Joseph A. "Noninvasive Diagnostic Techniques in Ophthalmology." American Journal of Ophthalmology 113, no. 5 (May 1992): 606. http://dx.doi.org/10.1016/s0002-9394(14)74753-1.

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Rao, Vijay M., Jeno I. Sebes, Robert M. Steiner, and Samir K. Ballas. "Noninvasive Diagnostic Imaging in Hemoglobinopathies." Hematology/Oncology Clinics of North America 5, no. 3 (June 1991): 517–33. http://dx.doi.org/10.1016/s0889-8588(18)30428-3.

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TSUGAWA, Ryotaro, Hideo UTSUNO, Hiroshi KATAYAMA, Shintaro NEMOTO, and Kanta KISHI. "Noninvasive diagnostic of Pulmonary hypertension." Proceedings of the Dynamics & Design Conference 2019 (2019): 427. http://dx.doi.org/10.1299/jsmedmc.2019.427.

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Brodie, Scott E. "Noninvasive diagnostic techniques in ophthalmology." Survey of Ophthalmology 37, no. 2 (September 1992): 143. http://dx.doi.org/10.1016/0039-6257(92)90078-8.

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Siregar, Ramenda, Raja Nurhayati, Widyaningsih Oentari, and Ari Sari. "Noninvasive diagnostic modality for skin cancer." Journal of General - Procedural Dermatology & Venereology Indonesia 5, no. 2 (June 30, 2021): 130–34. http://dx.doi.org/10.19100/jdvi.v5i2.210.

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Dissertations / Theses on the topic "Noninvasive diagnostic"

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Tordoir, Johannes Hendrik Marie. "Noninvasive diagnostic studies of arteriovenous fistulas for hemodialysis." Maastricht : Maastricht : Datawyse ; University Library, Maastricht University [Host], 1989. http://arno.unimaas.nl/show.cgi?fid=5509.

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Buriak, O. G., and Y. Yashchenko. "STATE OF PEROXIDATION PROTEINS AND THEIR DIAGNOSTIC SIGNIFICANCE IN DIAGNOSTIC OF PARENCHYMATOUS RESPIRATORY FAILURE IN NEWBORNS." Thesis, 2nd International Medical Students' Congress Sarajevo 2016, 2016. http://dspace.bsmu.edu.ua:8080/xmlui/handle/123456789/12113.

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It is known that the formation of oxidants, antioxidant protection, lipid peroxidation proteins are natural processes. However, these mechanisms imbalance initiates peroxidation of proteins, leading to cell dysfunction, in particular the ability of cells to generate and conduct impulses and energy of regulatory functions.
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Moffitt, Theodore Paul. "Compact fiber-optic diffuse reflection probes for medical diagnostics /." Full text open access at:, 2007. http://content.ohsu.edu/u?/etd,232.

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Amaddeo, Alessandro. "Les troubles respiratoires du sommeil dans les maladies génétiques chez l’enfant : diagnostic et prise en charge." Thesis, Paris Est, 2018. http://www.theses.fr/2018PESC0066/document.

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Le projet de recherche que j’ai suivi depuis 2015 concerne le diagnostic des troubles respiratoires du sommeil chez les enfants ayant une maladie génétique et leur prise en charge. Le projet a été développé entièrement dans l’unité de ventilation non invasive (VNI) et du sommeil de l’enfant de l’hôpital Necker Enfants malades de Paris.Dans le premier parti je me suis concentré sur le développement des nouveaux outils pour le diagnostic des troubles respiratoires du sommeil. La polysomnographie (PSG) représente l’examen de référence pour l’étude de troubles respiratoires du sommeil chez l’enfant. Néanmoins cet examen n’est pas disponible dans la plupart des centres hospitalier, est couteux et d’interprétation difficile. En plus, la qualité de l’examen est souvent réduite à cause de la perte involontaire ou à cause de l’intolérance de l’enfant aux capteurs posés. Pour cette raison, une de tache plus importante dans ce domaine c’est de développer des outils diagnostiques capables d’ameliorer la tolérance à l’examen et aussi sa performance. La première étude que j’ai suivie regarde la validation d’un particulaire capteur sous sternal pour la caractérisation des évènements respiratoires pendant une polygraphie ventilatoire. Les résultats de cette étude ont été publiés en 2016 (J Clin Sleep Med. 2016 Sep 13.). Une deuxième partie concerne la validation du même capteur pour la détection des évènements respiratoires chez l’enfant. Cette étude est actuellement en cours. Le but de ce projet est donc de démontrer la validité de ce capteur pour la détection et la caractérisation des évènements respiratoires chez l’enfant pour pouvoir permettre un ‘analyse complémentaire par rapport aux signaux dérivant des canules nasales et des bandes thoraco abdominales.La deuxième étude a analysé l’utilité de réductions de l’amplitude de l’onde de pouls pendant une polysomnographie, comme mesure des réveils corticaux liés aux évènements respiratoires. Le but de cette étude était de valider l’utilisation d’un outil simple pour remplacer l’analyse de l’EEG pour la détection des réveils corticaux associé aux évènements respiratoires. Les résultats de cette étude ont été publiés (Sleep Med. 2017 Jun;34:64-70).En ce qui concerne le deuxième parti je me suis concentré sur le traitement des troubles respiratoires du sommeil. La première étude a concerné l’efficacité du traitement par PPC dans une cohorte d’enfants ayant une séquence de Pierre Robin. Le but de cette etude etait de prouver l’efficacité de ce traitement pour eviter la tracheostomie dans ce groupe d’enfants ayant une obstruction severe des voies aeriennes superieures. Les résultats de cette étude ont été publiés en 2016 (Continuous Positive Airway Pressure for Upper Airway Obstruction in Infants with Pierre Robin Sequence (Reconstr Surg. 2016 Feb;137(2):609-12). La deuxième étude a permis d’analyser les critères de début de ventilation noninvasive (VNI) ou PPC dans une population d’enfant ayant des maladies génétiques hétérogènes. Les résultats de cette étude ont été publiés en 2016 (Sep;51(9):968-74). J’ai ensuite conclu une étude sur le début d’un traitement par PPC en ambulatoire. L’etude est actuellement en révision.J’ai aussi collaboré dans l’analyse des données et dans la rédaction des plusieurs études concernant les caractéristiques des troubles respiratoires du sommeil et de leur prise en charge chez des enfants porteurs de trisomie 21, de myasthénie congénitale et d’achondroplasie.J’ai ensuite recueilli les caractéristiques des troubles du sommeil dans une cohorte des patientes porteuses d’un syndrome de Rett
The research project I carried out since 2015 concerns the “diagnosis and treatment of SDB in children with genetic diseases”. The entire project was developed at the NIV and sleep unit of Necker Children Hospital in Paris.The first aim of my research project is focused on the development and improvement of new tools to diagnose SDB in children. PSG remains the gold standard for the diagnosis of SDB, but this exam is expensive, time consuming, difficult to interpret and most important, not available in most paediatric centres. Moreover, PSG quality is often affected by the involuntary displacement or loss of sensors or by the intolerance of the different sensors by the child. Given these considerations, one of the main challenges in paediatric sleep medicine is the development and validation of simplified tools, capable of improving the tolerance issues while assuring high and reliable accuracy.The first project I developed concerned the validation of a suprasternal pressure sensor to characterise sleep apnoea during respiratory polygraphy. This study was published in the Journal of Clinical Sleep Medicine in December 2016. A second part of this study is currently ongoing and explores the usefulness of the same sensor for the detection of respiratory events. The aim of this two part project is to demonstrate the validity of this sensor for the detection of airflow and respiratory efforts in children, thus allowing complementary analysis to nasal cannula and thoraco abdominal belts.The second project I carried out regards the use of the variations of pulse wave amplitude (PWA) as a surrogate of cortical microarousals. This study aimed at the validation of a surrogate of cortical microarousals in order to replace the standard EEG signal for their detection and to use PWA as a simple tool for the scoring of hypopneas during respiratory polygraphy. This study was published in Sleep Medicine in June 2017.During my PhD program, I also collaborate to another study concerning the use of pulse transit time (PTT) for the characterisation of respiratory events during polygraphy. This study was published in Sleep and Breathing in March 2017.The second axe of my research concerned the treatment of SDB in children with genetic and congenital disorders. The first study concerned the use of CPAP in the treatment algorithm of a series of infants with Pierre Robin sequence. This study highlighted the usefulness of CPAP in avoiding tracheostomy in this particular group of patients with severe OSAS. This paper was published in Plastic and Reconstructive Surgery in February 2016. The second study aimed at the identification of objective criteria that lead to the initiation of CPAP or NIV in children and infants. This study was published in Pediatric Pulmonology in September 2016. I also collaborated to the conception, data analysis and draft redaction of a second manuscript regarding the criteria authorising the weaning from CPAP and NIV in children. This paper was published in Pediatric Pulmonology in September 2017. A third article concerning a programme of outpatient initiation of CPAP in children is currently under revision in the Journal of Clinical and Sleep Medicine.I also collaborated in the conception, data analysis and manuscript revision of other papers regarding the description and management of SDB in children with Down syndrome, congenital myasthenia and achondroplasia.Finally, I am the first investigator of a study concerning sleep structure and sleep related respiratory events in girls with Rett syndrome
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Stabler, Cheryl Lynn. "Development of Noninvasive Methods for Monitoring Tissue Engineered Constructs using Nuclear Magnetic Resonance." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5239.

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Implanted tissue engineered substitutes constitute dynamic systems, with remodeling mediated by both the implanted cells and the host. Thus, there exists a significant need for methods to monitor the function and morphology of tissue engineered constructs. Noninvasive monitoring using 1H Nuclear Magnetic Resonance (NMR) spectroscopy and imaging can prove to be the solution to this problem. Spectroscopy allows for assessment of cellular function through the monitoring of inherent metabolic markers, such as total-choline, while high resolution imaging enables the evaluation of construct morphology and interfacial remodeling. We applied these 1H NMR methods to monitor betaTC3 mouse insulinoma cells within hydrogel-based materials as a model pancreatic tissue substitute. In vitro research established a strong correlation between total-choline, measured by 1H NMR spectroscopy, and viable betaTC3 cell number, measured by MTT. Extending these methods to in vivo monitoring, however, was met with additional challenges. First, the implanted cells needed to be contained within a planar construct above a threshold density to allow for adequate quantification of the total-choline peak. Secondly, cell-free buffer zones between the implanted cells and the host tissue needed to be incorporated to prevent host tissue signal contamination. Finally, quantitative techniques needed to be developed to accurately account for contaminating signal from diffusing molecules. To overcome these challenges, a disk-shaped agarose construct, initially containing a minimum of 4 million betaTC3 cells and coated with an outer layer of pure agarose, was fabricated. Mathematical simulations aided the implant design by characterizing diffusive transport of nutrients and metabolites into and out of the construct. In vivo 1H NMR studies of these constructs implanted in mice established a strong correlation between total-choline, measured noninvasively using 1H NMR spectroscopy, and viable cell number, measured invasively using MTT. This study establishes total-choline as a reliable marker for noninvasively quantifying dynamic changes in viable betaTC3 cell number in vivo. 1H NMR imaging was used to monitor the implants structural integrity over time, while also assessing the hosts fibrotic response. We expect these studies to establish quantitative criteria for the capabilities and limitations of NMR methodologies for monitoring encapsulated insulinomas, as well as other tissue implants.
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Cassinotto, Christophe. "Diagnostic et évaluation de la gravité des maladies chroniques du foie : impact de l’elastographie par ondes de cisaillement « supersonic shear imaging »." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0231/document.

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Les maladies chroniques du foie constituent un problème majeur de santé publique. L’évaluation précise du degré de fibrose hépatique apporte au clinicien une estimation du pronostic dès la prise en charge initiale de ces patients, mais permet également la réalisation d’une surveillance évolutive, et intervient dans la décision et le choix d’un traitement. L’évaluation noninvasive de la fibrose hépatique par élastographie a permis de révolutionner la prise en charge des malades atteints d’une maladie chronique du foie. L’objectif de notre travail est d’évaluer les performances diagnostiques d’une nouvelle technique d’élastographie hépatique, appelée « Supersonic ShearImaging » (SSI), et d’analyser sa plus-value dans l’évaluation non-invasive des maladies chroniques du foie.Dans une première étude, nous avons prospectivement analysé et comparé les performances diagnostiques de l’élastographie SSI par rapport au FibroScan et l’ARFI pour le staging de la fibrose hépatique sur une série de 349 patients avec une maladie chronique du foie diagnostiquée et gradée par ponction-biopsiehépatique.Dans une seconde étude, nous avons prospectivement étudié l’impact diagnostique de l’élastographie SSIsur le foie et la rate chez une population de 401 patients avec cirrhose pour l’évaluation de la gravité de la maladie cirrhotique.Dans une troisième étude, nous avons réalisé une analyse prospective bicentrique (Angers et Bordeaux)de la performance diagnostique de l’élastographie SSI par rapport au FibroScan et l’ARFI dans l’évaluation non invasive de la fibrose hépatique sur une série de 291 patients avec stéatopathie non-alcoolique et ponction-biopsiehépatique
Abstract :The management and the prognosis for chronic liver diseases are widely based on the presence and the development of a liver fibrosis. The progressive worsening of liver fibrosis leads in a certain number of patients to the development of cirrhosis and its complications. Thus, the development of non-invasive diagnostic tools for the diagnosis and the monitoring of the liver fibrosis is of crucial interest. Liver elastography is one of the most promising techniques that have recently emerged in the field of chronic liver diseases. In this study, we aim to assess the diagnostic accuracy of a new elastography technique, named “Supersonic Shear Imaging” (SSI), and toanalyse its added value in the non invasive diagnosis of chronic liver diseases.In a first study, we prospectively analysed and compared the diagnostic performances of SSI elastography versus FibroScan and ARFI for the staging of liver fibrosis in a cohort of 349 patients with chronic liver diseases that consecutively underwent a liver biopsy. In a second study, we prospectively analysed the impact of liver and spleen SSI elastography in a cohortof 401 cirrhotic patients for the non invasive diagnosis of cirrhosis severity and oesophageal varices.In a third study, we assessed the clinical use of liver stiffness measurement evaluated by SSI, FibroScan,and ARFI in a cohort of nonalcoholic fatty liver disease patients who underwent liver biopsy. A total of 291 NAFLD patients were prospectively enrolled at 2 French university hospitals (Angers and Bordeaux)
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PELLICORI, Virginia. "Image spectroscopy for diagnostic and conservation of contemporary art materials." Doctoral thesis, Università degli studi di Ferrara, 2013. http://hdl.handle.net/11392/2388837.

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To works of art is often assigned a specific value of cultural and expressive testimony of an artist or, more generally, of a culture. Preserve this value means keeping intact the appearance of the work and its component material in order for the message to reach the public, without alteration. A good knowledge of the materials constituting the work is needed to preserve them appropriately. My research work is focused on the study of modern and contemporary paintings and of materials used, which are not well known compared to traditional materials. The main goal of this work was to investigate some of the most popular art materials to track even the weakest changes, which are index of degradation and occur in the form of chromatic alterations. Image spectroscopy (IS) was the scientific technique on which we focused the attention, since it helps to reveal early alterations using imaging, in a complete non-invasive way. Spectral data in the VIS-NIR range were processed by multivariate statistical analysis. The use of Principal Component Analysis (PCA) on IS spectra was applied to modern painting materials, as Titanium White, Artificial Ultramarine Blue in acrylic and oil binders in a test panel. IS + PCA has proven to be an effective method for the early identification of chromatic alterations, although of faint amounts. Moreover, colorimetric data have provided useful and complementary information, recognizing the alterations trends. Unexpectedly, IS has also demonstrated a discriminant power for some materials. The most striking case was the identification of white Lithopone for an absorption band in the visible range, due to the presence of cobalt as vicariant element of Zinc. The knowledge of changes in the chemical composition of this pigment in a specific time period has allowed the recognition of a fake in contemporary artwork. Other scientific methodologies have been used. X-ray fluorescence was used to collect more detailed information about the materials. This can be the case of examinations on Jean Metzinger’s work, present in the Peggy Guggenheim Collection (Venice). Image diagnostics, as Ultraviolet fluorescence, Wide band infrared reflectography, have proved useful to collect information on the state of conservation of works in non-quantitative way. The common features of such techniques are to be non-invasive, non-destructive, to be used in situ.
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Younsi, Mohamed Omar. "Analyse, diagnostic et optimisation énergétiques d'un parc de machines électriques sur site industriel." Thesis, Artois, 2017. http://www.theses.fr/2017ARTO0211/document.

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Les moteurs électriques sont responsables de 67% de la consommation d’électricité dans l’industrie. Remplacer les moteurs installés par des entrainements plus efficients requiert de statuer sur leur adéquation avec les charges qu’ils entrainent. Une contrainte forte est de les analyser « on-line » et sans mesures intrusives ni consignations des installations.Cette thèse répond à un triple objectif. Premièrement, un dispositif de diagnostic « non-invasif » facilement intégrable en milieu industriel a été développé avec quatre méthodes d’évaluation du niveau de charge des moteurs asynchrones directement connectés au réseau. Deux de ces méthodes, existantes et basées sur la mesure du courant et du flux magnétique de dispersion, font l’objet d’améliorations significatives qui les portent à un niveau TRL7. Les deux autres méthodes exploitent la mesure seule du flux de dispersion. Leur applicabilité est vérifiée pour une alimentation par un système de tensions, équilibré ou non, avec des variations permanentes ou aléatoires. Une étude plus exploratoire montre que l’estimation non-invasive du courant absorbé par les machines asynchrones alimentées par convertisseurs électroniques est possible par exploitation du flux rayonné. Deuxièmement, le dispositif de diagnostic énergétique et des algorithmes de recherche de motorisation adaptée à un cycle de fonctionnement défini ont été appliqués à des exemples concrets d’optimisation énergétique sur un site industriel très énergivore, une aluminerie. Troisièmement, cette étude propose une réflexion sur la gestion d’un parc moteurs et, notamment, sur l'analyse des performances des moteurs neufs comparés à ceux ayant subi un rebobinage
In the industry, electrical motors are responsible for 67% of electricity consumption. Replacing installed motors by more efficient ones requires the knowledge of their suitability with the loads that they drive. Analyzing the load variations without intrusive measurements or installations consignments is a strong constraint.That is why this thesis has a threefold purpose. Firstly, a “noninvasive” diagnostic device has been developed with four methods for evaluating the load of grid-connected induction motors. Two of these methods, based on the measurement of the current and the magnetic stray flux, have been significantly improved up to TRL7. The two other methods exploit only the measurement of the stray flux. Their applicability is checked for balanced and unbalanced supply voltage systems with permanent or random variations. A more exploratory study shows that the noninvasive estimation of the current for inverter-fed induction machines is possible using the radiated external flux. Secondly, the energy diagnosis device and search algorithms adapted to an operating cycle motorization have been applied to practical examples of energy optimization in an electro-intensive industrial plant, an aluminum smelter. Thirdly, a reflection on the management of a motor fleet is proposed, in particular, on the performance analysis between new motors and rewounded ones
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Warren, Andrew David. "Noninvasive disease diagnostics using engineered synthetic urinary biomarkers." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104609.

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Thesis: Ph. D. in Biomedical Engineering, Harvard-MIT Program in Health Sciences and Technology, 2016.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 149-166).
Accurate, timely, and effective diagnosis is the first step in appropriately treating disease. Many diseases have confusing symptoms, nonspecific biomarkers, or require invasive biopsy; these factors and others contribute to the low rates of early diagnosis for noncommunicable diseases like cancer, clotting disorders, or fibrotic diseases. A promising approach is the introduction of pro-diagnostic agents that interact with pathologic processes to produce a readout. In this vein, our group has developed responsive nanomaterials that, upon cleavage by disease-associated proteases, release reporters into the urine. This thesis sought to improve these tools by enabling the noninvasive quantification of disease-associated protease activity, deskilling complex diagnostic procedures, and developing a pipeline for extending these tools to additional diseases. Drawing inspiration from existing diagnostics, we modified our protease nanosensors to release ligand-encoded reporters compatible with clinical ELISA and paper-based lateral flow assays. These detection techniques enable simple and inexpensive quantification of our synthetic disease reporters by ensuring compatibility with existing diagnostic resources and infrastructure. To demonstrate our platform's versatility, we adapted it to a highly sensitive single molecule array (SiMoA) assay and validated disease detection in mice using 1000-fold lower doses of nanosensors. We next used disease-specific protease expression data to develop an inhalable formulation of our protease nanosensors and investigated direct tissue delivery. Finally, we built a pipeline to improve protease substrate sensitivity and specificity. Using liver fibrosis as a model, we identified target proteases, designed a peptide-screening assay, and nominated peptide candidates that efficiently classify diseased tissue. The protease nanosensors developed here provide a noninvasive, quantitative, and otherwise unavailable glimpse of the complex proteolytic milieu of disease and health. These tools form a framework for developing new diagnostics that simply, rapidly, and inexpensively identify protease-driven diseases without complex equipment or specialized personnel.
by Andrew David Warren.
Ph. D. in Biomedical Engineering
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Chakouch, Mashhour. "Viscoelastic properties of in vivo thigh muscle and in vivo phantom using magnetic resonance elastography (MRE)." Thesis, Compiègne, 2015. http://www.theses.fr/2015COMP2236/document.

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Résumé de l'étude in vitro. L'objectif de cette étude in vitro était de créer un fantôme avec la même architecture musculaire (fibre, aponévrose ...) et les mêmes propriétés mécaniques que le muscle en condition passive et active. Deux fantômes homogènes ont été fabriqués avec différentes concentrations de plastisol pour simuler les propriétés élastiques du muscle en condition passive (50% plastisol) et active (70% de plastisol). Pour cela, des fils en Téflon (d = 0,9 mm) ont été insérés dans la partie supérieure du fantôme (50%) pour représenter les fibres musculaires. De plus, une feuille en matière plastique (8 x 15 cm) a également été placée au milieu du fantôme pour imiter la structure de l'aponévrose. Ensuite, des tests ERM ont été effectués à 90 Hz avec deux stimulateurs pneumatiques de différentes formes (tube en silicone, membrane circulaire) pour analyser l'effet du type du stimulateur sur la propagation des ondes. La longueur d'onde a été mesurée à partir des images phase et les propriétés élastiques (module de cisaillement) ont été calculées. Les deux fantômes (50% et 70%) ont montré des propriétés élastiques similaires à celles du muscle à l’état passif (2,40 ± 0,18 kPa) et actif (6,24 ± 0,21 kPa). Le stimulateur en forme de tube a donné des valeurs plus élevées (environ 1,2 kPa à 1,53 kPa). L'analyse du comportement des ondes a révélé un glissement le long de la feuille plastique. Ce phénomène a aussi été observé in vivo le long de l’aponévrose. L'onde a également été sensible à la présence des fils en téflon car des coupures, des trous, ont été identifiés au cours de la propagation de l’onde. Une nouvelle méthode de post-traitement a été créée pour mesurer les paramètres G' et G" à partir de tests ERM réalisés à plusieurs fréquences (60, 80, 100 Hz) et en utilisant des modèles rhéologiques. Cette méthode a été testée sur un fantôme (50%) qui n’avait pas d’inclusion. Les résultats des mesures viscoélastiques (G', G") ont été validés avec la technique HFVS (Hyper-Fréquence viscoélastique Spectroscopy). Des valeurs similaires, G' et G’’, ont été obtenues avec les deux techniques. Ce dernier résultat valide la nouvelle méthode de post-traitement pour mesurer les propriétés viscoélastiques. Résumé de l'étude in vivo. L'objectif de cette étude in vivo a été de développer des protocoles ERM pour caractériser les propriétés élastiques (module de cisaillement) des neuf muscles de la cuisse. Ces tests ont été effectués à une seule fréquence (90 Hz). Différents modules de cisaillement ont été trouvés entre les muscles. Le gracilis a révélé des propriétés élastiques plus élevées que les autres muscles. Ces différentes élasticités peuvent être dues à différentes compositions physiologiques et architecturales entre les tissus. Ensuite, les propriétés viscoélastiques des muscles ischio (ST, SM, et la BC) et du muscle Gr ont été déterminées en appliquant la nouvelle méthode de post-traitement des données (précédemment validée sur le fantôme 50%) avec des tests ERM multi fréquences (70, 90 et 120 Hz) et en utilisant des modèles rhéologiques. Les résultats ont montré que deux modèles rhéologiques, Zener et springpot, peuvent être utilisés pour mesurer les propriétés viscoélastiques des muscles à l’état passif. De plus, des résultats similaires ont été trouvés entre G "/ G ', obtenus expérimentalement à 90 Hz, et la valeur α du modèle de springpot
Summary of the vitro studies. The objective of this in vitro study was to create a phantom witch the same muscle architecture (fiber, aponeurosis …) and mechanical properties of muscle in passive and active states. Two homogeneous phantoms were manufactured with different concentrations of plastisol to simulate the muscle elastic properties in passive (50% of plastisol) and active (70% of plastisol) muscle conditions. Moreover, teflon tubing pipes (D = 0.9 mm) were thread in the upper part of the phantom (50%) to represent the muscle fibers and a plastic sheet (8 x 15 cm) was also included in the middle of the phantom to mimic the aponeurosis structure. Subsequently, MRE tests were performed at 90Hz with two different pneumatic drivers, tube and round shapes, to analyze the effect of the type of driver on the wave propagation. The wavelength was measured from the phase images and the elastic properties (shear modulus) were calculated. Both phantoms revealed elastic properties which were in the same range as in vivo muscle in passive (2.40 ± 0.18 kPa) and active (6.24 ± 0.21 kPa) states. The impact of the type of driver showed higher values with the tube (range: 1.2 kPa to 1.53 kPa). The analysis of the wave behavior revealed a sliding along the plastic sheet as it was observed for in vivo muscle study. The wave was also sensitive to the presence of the fibers where gaps were identified. A new post processing method was established to measure G’ and G” from experimental multi frequencies (60, 80, 100 Hz) MRE (MMRE) tests and rheological models. This method was tested on the phantom (50%) made without fiber. Cross validation of the viscoelastic (G’, G”) results was made with Hyper-Frequency Viscoelastic Spectroscopy (HFVS). Both techniques showed similar range of values for G’ and G” at the same frequencies. This last result validated our new data processing for the viscoelastic measurement. Summary of the in vivo studies. The objective of this in vivo study was to develop MRE protocols to characterize the elastic properties (shear modulus) of the nine thigh muscles. These tests were performed at a single frequency (90Hz). Different shear moduli were found between the muscles. The gracilis revealed the highest elastic properties compared to all the other muscles. These different elasticities may be due to different physiological and architectural compositions between the tissues. Then the viscoelastic properties of the ischio (ST, SM, and BC) and Gr muscles were determined based on our new data-processing method (validated on the phantom 50%) using MMRE tests (70, 90 and 120Hz) and rheological models. The results revealed that two rheological models, zener and springpot, can be used to measure the viscoelastic properties in passive state. A similar trend was found between the experimental ratios G”/G’ obtained at 90 Hz and the α value of the springpot model. The present MRE muscle protocol, and the viscoelastic data base, could be used as non-invasive diagnostic tools to evaluate tissue alterations, the progression of diseases, and the effect of treatments, such as the ongoing therapeutic trials for Duchenne muscular dystrophy
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Books on the topic "Noninvasive diagnostic"

1

R, Masters Barry, ed. Noninvasive diagnostic techniques in ophthalmology. New York: Springer-Verlag, 1990.

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Masters, Barry R., ed. Noninvasive Diagnostic Techniques in Ophthalmology. New York, NY: Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4613-8896-8.

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Challender, Come Patricia, ed. Diagnostic cardiology: Noninvasive imaging techniques. Philadelphia: Lippincott, 1985.

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Masters, Barry R. Noninvasive Diagnostic Techniques in Ophthalmology. New York, NY: Springer New York, 1990.

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WHO Scientific Group on Clinical Diagnostic Imaging. Effective choices for diagnostic imaging in clinical practice: Report of a WHO scientific group. Geneva: WHO, 1990.

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Bergan, John J., and Ali F. AbuRahma. Noninvasive peripheral arterial diagnosis. London: Springer, 2010.

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1930-, Bernstein Eugene F., ed. Noninvasive diagnostic techniques in vascular disease. 3rd ed. St. Louis: Mosby, 1985.

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Noninvasive instrumentation and measurement in medical diagnosis. Boca Raton: CRC Press, 2002.

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A primer of noninvasive vascular technology. Boston: Little, Brown, 1995.

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J, Garcia Mario, ed. Noninvasive cardiovascular imaging: A multimodality approach. Philadelphia: Wollters Kluwer/Lippincott Williams & Wilkins, 2010.

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Book chapters on the topic "Noninvasive diagnostic"

1

Smith, Mary E., Barrett G. Haik, and D. Jackson Coleman. "Diagnostic Ocular Ultrasonography." In Noninvasive Diagnostic Techniques in Ophthalmology, 47–60. New York, NY: Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4613-8896-8_4.

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Tincopa, Monica A., and Stephen A. Harrison. "Noninvasive Diagnostic Approach to NASH: Radiological Diagnostics." In Non-Alcoholic Fatty Liver Disease, 257–69. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-95828-6_14.

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Mansour, M. Ashraf. "Physician Qualifications in the Clinical Diagnostic Vascular Laboratory." In Noninvasive Vascular Diagnosis, 11–15. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-4005-4_2.

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Ashraf Mansour, M. "Physician Qualifications in the Clinical Diagnostic Vascular Laboratory." In Noninvasive Vascular Diagnosis, 15–20. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-54760-2_2.

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Mansour, M. Ashraf. "Physician Qualifications in the Clinical Diagnostic Vascular Laboratory." In Noninvasive Vascular Diagnosis, 1–8. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-49616-6_2-1.

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Mansour, M. Ashraf. "Physician Qualifications in the Clinical Diagnostic Vascular Laboratory." In Noninvasive Vascular Diagnosis, 17–23. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-60626-8_2.

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Ricci, Michael A., and Robert B. Rutherford. "Qualifications of the Physician in the Vascular Diagnostic Laboratory." In Noninvasive Vascular Diagnosis, 19–22. London: Springer London, 2000. http://dx.doi.org/10.1007/978-1-4471-3837-2_3.

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Beach, Kirk W., Jing-Ming Jong, Marla Paun, and Jean F. Primozich. "Principles and Instruments of Diagnostic Ultrasound and Doppler Ultrasound." In Noninvasive Vascular Diagnosis, 25–48. London: Springer London, 2000. http://dx.doi.org/10.1007/978-1-4471-3837-2_4.

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Rehkopf, Paul G., and Joseph W. Warnicki. "Ophthalmic Image Processing." In Noninvasive Diagnostic Techniques in Ophthalmology, 1–16. New York, NY: Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4613-8896-8_1.

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Masters, Barry R., and Gordon S. Kino. "Confocal Microscopy of the Eye." In Noninvasive Diagnostic Techniques in Ophthalmology, 152–71. New York, NY: Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4613-8896-8_10.

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Conference papers on the topic "Noninvasive diagnostic"

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Vossoughi, Jafar, and Arthur Johnson. "An Effortless Noninvasive Respiratory Diagnostic Device." In 2016 32nd Southern Biomedical Engineering Conference (SBEC). IEEE, 2016. http://dx.doi.org/10.1109/sbec.2016.96.

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Massof, Robert W., Bruce A. Drum, and Gary S. Rubin. "ROC Analysis Applied to Multivariate Diagnostic Tests." In Noninvasive Assessment of the Visual System. Washington, D.C.: Optica Publishing Group, 1988. http://dx.doi.org/10.1364/navs.1988.wb4.

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The area of the relative operating characteristic (ROC) curve provides a nonparametric index of diagnostic test performance.1 The area of the ROC curve is criterion-free and corresponds to the discriminability of patient test scores from normal test scores. That is, the area of the ROC curve is equivalent to the probability of correctly identifying patient test results in a two-alternative forced-choice decision task. Because of this equivalence, ROC analysis provides for the comparison of subjective clinical judgments with quantitative test results, using the same statistic.1-2
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Rehkopf, Paul G., Joseph W. Warnicki, Mark R. Nelson, James L. Cambier, and Stuart I. Brown. "Image Processing in Ophthalmology A New Clinical Noninvasive Diagnostic Modality." In Noninvasive Assessment of Visual Function. Washington, D.C.: Optica Publishing Group, 1985. http://dx.doi.org/10.1364/navf.1985.wa2.

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A computer imaging system has been developed which acquires, archives, retrieves, processes and provides security for images derived during ophthalmic testing procedures. Film copies of the electronically stored or processed images may be made for publication, lectures or for a referring physician.
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Rehkopf, Paul G., Joseph W. Warnicki, Thomas R. Friberg, and Andrew W. Eller. "Fluorescein Angiography Using Computer Image Processing Technology." In Noninvasive Assessment of the Visual System. Washington, D.C.: Optica Publishing Group, 1987. http://dx.doi.org/10.1364/navs.1987.wc1.

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Historically, acquisition and documentation of ocular fundus disease has been accomplished using fundus photography, as introduced by Nordenson and Zeiss,1,2. Fluorescein angiography has become a routine method for diagnosis of disorders which affect the retinal vasculature. Advances in microcomputer technology have now made it practical to acquire color and fluorescein images of the ocular fundus without the use of film. These images are readily accessible to the clinician for diagnostic and treatment purposes. This paper describes an ocular fundus imaging system used for real time acquisition, cataloging, retrieval, and analysis of color and fluorescein images of the ocular fundus.
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Massof, Robert W. "A Criterion-Free and Parameter-Free Index of Diagnostic Test Performance." In Noninvasive Assessment of the Visual System. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/navs.1986.ma1.

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Frequently claims are made in the clinical literature that a particular test or data reduction procedure provides diagnostic information that is superior in quality to that provided by alternative tests or procedures. Often these claims are based solely on an evaluation of the tests’ ’’sensitivity”, that is, an estimate of the percentage of diseased patients diagnosed correctly by the test. Relatively few such studies have also evaluated a test’s ’’specificity” an estimate of the percentage of patients not at risk, or normals who are diagnosed correctly by the test.
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Dagnelie, Gislin, and John Maier. "Visually Evoked Potentials to motion onset-offset: an alternative tool for clinical electrophysiology?" In Noninvasive Assessment of the Visual System. Washington, D.C.: Optica Publishing Group, 1987. http://dx.doi.org/10.1364/navs.1987.mb3.

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Visually Evoked Potentials can provide valuable information concerning pathology at various stages along the visual pathway, and have thus gained acceptance as diagnostic tools in ophthalmology and neurology. Unfortunately, their applicability has sometimes been questioned due to inconsistencies in results reported by various laboratories. Standardization of stimuli and of recording procedures have been instrumental in the reduction of such inconsistencies, but relatively large interindividual variations, even in normal observers, still occurs and remains a limiting factor for the diagnostic value of VEPs.
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Bailey, Ian L. "Glare: Clinical Assessment and Applications." In Noninvasive Assessment of the Visual System. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/navs.1991.me2.

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Johnson, Chris A., Craig W. Adams, Richard A. Lewis, and John L. Keltner. "Fatigue Effects in Automated Perimetry." In Noninvasive Assessment of the Visual System. Washington, D.C.: Optica Publishing Group, 1987. http://dx.doi.org/10.1364/navs.1987.wb2.

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Automated static perimetry has improved the detection and differential diagnostic capabilities of clinical visual field testing. However, automated perimetry is more demanding and less flexible than manual visual field testing. The increased effort and attentional requirements of automated perimetry may adversely influence the sensitivity and reliability of visual field testing.
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Fedukova, M. V., M. A. Dmitriev, D. M. Mustafaeva, Yu Y. Kolbas, Dmitrii A. Rogatkin, Oleg A. Bychenkov, and Pavel Y. Polyakov. "New portable noninvasive spectrophotometric apparatus for clinical diagnostic applications." In SPIE Proceedings, edited by Valery V. Tuchin. SPIE, 2004. http://dx.doi.org/10.1117/12.578985.

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Baitch, Lawrence W., and N. Bradley Sanders. "The Texas Sandwich: A New Low-Anxiety Corneal Electrode for Electroretinography." In Noninvasive Assessment of the Visual System. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/navs.1991.md5.

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Although ERG recording is a routine clinical procedure performed in nearly every ophthalmology clinic, it is perhaps one of the most invasive of the "noninvasive" techniques for assessment of the visual neurosensory pathway. Anxiety and discomfort caused by the recording apparatus and often intimidating ERG stimuli can induce detrimental artifacts or otherwise yield data unsuitable for making diagnostic decisions. Pediatric patients are particularly problematic in this regard.
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Reports on the topic "Noninvasive diagnostic"

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Miller, George P. An Exploratory Study of Cavity Ringdown Spectroscopy as a Noninvasive Breath Diagnostic for Breast Cancer. Fort Belvoir, VA: Defense Technical Information Center, March 2006. http://dx.doi.org/10.21236/ada465211.

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Sun, Lina, Yanan Han, Hua Wang, Huanyu Liu, Shan Liu, Hongbin Yang, Xiaoxia Ren, and Ying Fang. MicroRNAs as Potential Biomarkers for the Diagnosis of Inflammatory Bowel Disease: A Systematic Review and Meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, February 2022. http://dx.doi.org/10.37766/inplasy2022.2.0027.

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Review question / Objective: The purpose of this systematic review was to systematically review the clinical studies regarding miRNAs as diagnostic biomarkers for inflammatory bowel disease and assess the overall diagnostic accuracy of miRNAs. Condition being studied: The symptoms of inflammatory bowel disease (IBD) are highly variable. The diagnosis of IBD must be made through medical history, physical, laboratory, radiologic, endoscopic, and histological examinations. However, these diagnostic techniques are not specific and sometimes even equivocal. Therefore, reliable biomarkers are urgently needed in the diagnosis of IBD. Several clinical and preclinical researches have shown that dysregulated microRNAs (miRNAs) play a crucial role in IBD development. miRNAs, as single-stranded noncoding RNAs that contain 22-24 nucleotides, can post-transcriptionally regulate gene expression by blocking mRNA translation or degrading target mRNAs. miRNAs are widely involved in physiological and pathological cellular processes, such as differentiation, proliferation and apoptosis. Besides, they are stable, noninvasive, and resistant to degradation by ribonucleases, making them valuable targets in the diagnosis, monitoring, prognosis, and treatment of diseases. To date, inconsistent results have been found about miRNA expression profiling in the patients with IBD. Moreover, the diagnostic accuracy of miRNAs for IBD has not been reported in any meta-analysis.
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Botchkina, Galina I., and Howard L. Adler. Validation of Quantitative Multimodality Analysis of Telomerase Activity in Urine Cells as a Noninvasive Diagnostic and Prognostic Tool for Prostate Cancer. Fort Belvoir, VA: Defense Technical Information Center, August 2005. http://dx.doi.org/10.21236/ada468571.

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Wu, Bin, Lixia Guo, Kaikai Zhen, and Chao Sun. Diagnostic and prognostic value of miRNAs in hepatoblastoma: A systematic review with meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, November 2021. http://dx.doi.org/10.37766/inplasy2021.11.0045.

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Review question / Objective: Background and aim: Increasing evidence has revealed the valuable diagnostic and prognostic applications of dysregulated microRNAs (miRNAs) in hepatoblastoma (HB), the most common hepatic malignancy during childhood. However, these results are inconsistent and remain to be elucidated. In the present study, we aimed to systematically compile up-to-date information regarding the clinical value of miRNAs in HB. Methods: Articles concerning the diagnostic and prognostic value of single miRNAs for HB were searched from databases. The sensitivity (SEN), specificity (SPE), positive and negative likelihood ratios (PLR and NLR), diagnostic odds ratio (DOR), area under the curve (AUC), and hazard ratios (HRs) were separately pooled to explore the diagnostic and prognostic performance of miRNA. Subgroup and meta-regression analyses were further carried out only in the event of heterogeneity. Results: In all, 20 studies, involving 264 HB patients and 206 healthy individuals, met the inclusion criteria in the six included literature articles. For the diagnostic analysis of miRNAs in HB, the pooled SEN and SPE were 0.76 (95% CI: 0.72–0.80) and 0.75 (95% CI: 0.70–0.80), respectively. Moreover, the pooled PLR was 2.79 (95% CI: 2.12–3.66), NLR was 0.34 (95% CI: 0.26–0.45), DOR was 10.24 (95% CI: 6.55–16.00), and AUC was 0.83, indicating that miRNAs had moderate diagnostic value in HB. For the prognostic analysis of miRNAs in HB, the abnormal expressions of miR-21, miR-34a, miR-34b, miR-34c, miR-492, miR-193, miR-222, and miR-224 in patients were confirmed to be associated with a worse prognosis. The pooled HR was 1.74 (95% CI: 1.20–2.29) for overall survival (OS) and 1.74 (95% CI: 1.31–2.18) for event-free survival (EFS), suggesting its potential as a prognostic indicator for HB. Conclusion: To the best of our knowledge, this is the first comprehensive systematic review and meta-analysis that examines the diagnostic and prognostic role of dysregulated miRNAs in HB patients. The combined meta-analysis results supported the previous individual finds that miRNAs might provide a new, noninvasive method for the diagnostic and prognostic analyses ofHB.
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Zangar, Richard, and Susan M. Varnum. Protein Microarray Technology for the Noninvasive Diagnosis and Prognosis of Breast Cancer. Fort Belvoir, VA: Defense Technical Information Center, July 2001. http://dx.doi.org/10.21236/ada396500.

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Zangar, Richard C., and Susan M. Varnum. Protein Microarray Technology for the Noninvasive Diagnosis and Prognosis of Breast Cancer. Fort Belvoir, VA: Defense Technical Information Center, July 2002. http://dx.doi.org/10.21236/ada409625.

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Zangar, Richard C. Protein Microarray Technology for the Noninvasive Diagnosis and Prognosis of Breast Cancer. Fort Belvoir, VA: Defense Technical Information Center, July 2003. http://dx.doi.org/10.21236/ada425180.

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Xu, Dan, Xueying Zhou, Junfei Wang, Xi Cao, and Tao Liu. The Value of Urinary Gonadotropins in the Diagnosis of Central Precocious Puberty: A Meta-Analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, December 2021. http://dx.doi.org/10.37766/inplasy2021.12.0076.

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Review question / Objective: Precocious puberty is defined as the onset of secondary sexual characteristics before the age of 8 years in girls and 9 years in boys. It can be differentiated into central precocious puberty (CPP) and peripheral precocious puberty, and it is more common in girls than in boys. CPP may result in a decreased final adult height, an early age at menarche, and psychological and health problems in adulthood. Gonadotropin-releasing hormone (GnRH) GnRH stimulation test has been indispensable in the diagnosis of CPP. GnRH stimulation test is not only invasive, time-consuming and expensive, but also sometimes difficult to have patients cooperate. Nocturnal urinary LH and FSH can represent gonadotropin excretion in children with normal and early puberty. And urinary sample collection and evaluation are more convenient, more acceptable, cheaper, and noninvasive. This meta-analysis aims to assess the value of first-voided urinary luteinizing hormone (LH) and the ratio of urinary luteinizing hormone and follicle-stimulating hormone (FSH) in the diagnosis of female CPP and to compare the accuracy between urinary gonadotropins and serum GnRH-stimulated gonadotropins.
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