Готові списки джерел за темами / Perfusion techniques

Добірка наукової літератури з теми "Perfusion techniques"

Автор: Grafiati

Опубліковано: 14 березня 2023

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Статті в журналах з теми "Perfusion techniques"

Axel, Leon. "Cerebral Perfusion CT Techniques." Radiology 233, no. 3 (December 2004): 935. http://dx.doi.org/10.1148/radiol.2333040946.

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Burg, Maurice B., and Mark A. Knepper. "Single tubule perfusion techniques." Kidney International 30, no. 2 (August 1986): 166–70. http://dx.doi.org/10.1038/ki.1986.168.

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Shann, Kenneth, and Serguei Melnitchouk. "Advances in Perfusion Techniques." Seminars in Cardiothoracic and Vascular Anesthesia 18, no. 2 (April 21, 2014): 146–52. http://dx.doi.org/10.1177/1089253214530519.

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Kress, R., and R. Roemer. "A Comparative Analysis of Thermal Blood Perfusion Measurement Techniques." Journal of Biomechanical Engineering 109, no. 3 (August 1, 1987): 218–25. http://dx.doi.org/10.1115/1.3138672.

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The object of this study was to devise a unified method for comparing different thermal techniques for the estimation of blood perfusion rates and to perform a comparison for several common techniques. The approach used was to develop analytical models for the temperature response for all combinations of five power deposition geometries (spherical, one- and two-dimensional cylindrical, and one- and two-dimensional Gaussian) and three transient heating techniques (temperature pulse-decay, temperature step function, and constant-power heat-up) plus one steady-state heating technique. The transient models were used to determine the range of times (the time window) when a significant portion of the transient temperature response was due to blood perfusion. This time window was defined to begin when the difference between the conduction-only and the conduction-plus-blood flow transient temperature (or power) responses exceeded a specified value, and to end when the conduction-plus-blood flow transient temperature (or power) reached a specified fraction of its steady-state value. The results are summarized in dimensionless plots showing the size of the time windows for each of the transient perfusion estimation techniques. Several conclusions were drawn, in particular: (a) low perfusions are difficult to estimate because of the dominance of conduction, (b) large heated regions are better suited for estimation of low perfusions, (c) noninvasive heating techniques are superior because they have the potential to minimize conduction effects, and (d) none of the transient techniques appears to be clearly superior to the others.

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Patel, Mahesh R., Bettina Siewert, Steven Warach, and Robert R. Edelman. "DIFFUSION AND PERFUSION IMAGING TECHNIQUES." Magnetic Resonance Imaging Clinics of North America 3, no. 3 (August 1995): 425–38. http://dx.doi.org/10.1016/s1064-9689(21)00254-3.

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Gibbons, R. J. "IMAGING TECHNIQUES: Myocardial perfusion imaging." Heart 83, no. 3 (March 1, 2000): 355–60. http://dx.doi.org/10.1136/heart.83.3.355.

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Guzmán-de-Villoria, J. A., P. Fernández-García, J. M. Mateos-Pérez, and M. Desco. "Studying cerebral perfusion using magnetic susceptibility techniques: Technique and applications." Radiología (English Edition) 54, no. 3 (May 2012): 208–20. http://dx.doi.org/10.1016/j.rxeng.2011.06.004.

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Hopkins, Susan R., Mark O. Wielpütz, and Hans-Ulrich Kauczor. "Imaging lung perfusion." Journal of Applied Physiology 113, no. 2 (July 15, 2012): 328–39. http://dx.doi.org/10.1152/japplphysiol.00320.2012.

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From the first measurements of the distribution of pulmonary blood flow using radioactive tracers by West and colleagues ( J Clin Invest 40: 1–12, 1961) allowing gravitational differences in pulmonary blood flow to be described, the imaging of pulmonary blood flow has made considerable progress. The researcher employing modern imaging techniques now has the choice of several techniques, including magnetic resonance imaging (MRI), computerized tomography (CT), positron emission tomography (PET), and single photon emission computed tomography (SPECT). These techniques differ in several important ways: the resolution of the measurement, the type of contrast or tag used to image flow, and the amount of ionizing radiation associated with each measurement. In addition, the techniques vary in what is actually measured, whether it is capillary perfusion such as with PET and SPECT, or larger vessel information in addition to capillary perfusion such as with MRI and CT. Combined, these issues affect quantification and interpretation of data as well as the type of experiments possible using different techniques. The goal of this review is to give an overview of the techniques most commonly in use for physiological experiments along with the issues unique to each technique.

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Tisone, G., G. Vennarecci, L. Baiocchi, S. Negrini, G. P. Palmieri, M. Angelico, M. Dauri, and C. U. Casciani. "Randomized study on in situ liver perfusion techniques: Gravity perfusion VS high-pressure perfusion." Transplantation Proceedings 29, no. 8 (December 1997): 3460–62. http://dx.doi.org/10.1016/s0041-1345(97)00978-0.

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Kim, E. E. "Clinical Perfusion MRI: Techniques and Applications." Journal of Nuclear Medicine 55, no. 3 (February 10, 2014): 522. http://dx.doi.org/10.2967/jnumed.114.138172.

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Дисертації з теми "Perfusion techniques"

Paolani, Giulia. "Brain perfusion imaging techniques." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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In questo lavoro si sono analizzate due diverse tecniche di imaging di perfusione implementate in Risonanza Magnetica e Tomografia Assiale Computerizzata (TAC). La prima analisi proposta riguarda la tecnica di Arterial Spin Labeling che permette di ottenere informazioni di perfusione senza la somministrazione di un mezzo di contrasto. In questo lavoro si è sviluppata e testata una pipeline completa, attraverso lo sviluppo sia di un protocollo di acquisizione che di post-processing. In particolare, sono stati definiti parametri di acquisizione standard, che permettono di ottenere una buona qualità dei dati, successivamente elaborati attraverso un protocollo di post processing che, a partire dall'acquisizione di un esperimento di ASL, permette il calcolo di una mappa quantitativa di cerebral blood flow (CBF). Nel corso del lavoro, si è notata una asimmetria nella valutazione della perfusione, non giustificata dai dati e probabilmente dovuta ad una configurazione hardware non ottimale. Risolta questa difficoltà tecnica, la pipeline sviluppata sarà utilizzata come standard per l’acquisizione e il post-processing di dati ASL. La seconda analisi riguarda dati acquisiti attraverso esperimenti di perfusione TAC. Si è presa in considerazione la sua applicazione a casi di infarti cerebrali in cui le tecniche di trombectomia sono risultate inefficaci. L'obiettivo di questo lavoro è stata la definizione di una pipeline che permetta il calcolo autonomo delle mappe di perfusione e la standardizzazione della trattazione dei dati. In particolare, la pipeline permette l’analisi di dati di perfusione attraverso l’utilizzo di soli software open-source, contrapponendosi alla metodologia operativa comunemente utilizzata in clinica e rendendo le analisi riproducibili. Il lavoro proposto è inserito in un progetto più ampio, che include future analisi longitudinali con coorti di pazienti più ampie per definire e validare parametri predittivi degli outcome dei pazienti.

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Francis, S. T. "Magnetic Resonance Imaging of perfusion : techniques and applications." Thesis, University of Nottingham, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243771.

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Perthen, Joanna Elizabeth. "Measurement of cerebral perfusion using magnetic resonance techniques." Thesis, University College London (University of London), 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.406739.

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王晴兒 and Ching-yee Oliver Wong. "Measurement of cerebrovascular perfusion reserve using single photon emission tomographic techniques." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31981677.

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Wong, Ching-yee Oliver. "Measurement of cerebrovascular perfusion reserve using single photon emission tomographic techniques." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19605328.

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Filipovic, Marina. "Application des techniques adaptatives à l'imagerie par résonance magnétique de perfusion." Thesis, Nancy 1, 2011. http://www.theses.fr/2011NAN10030/document.

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L'Imagerie par Résonance Magnétique (IRM) nécessite des outils pour gérer le mouvement physiologique et autre du sujet. La création des images par l'IRM comporte trois étapes: l'acquisition de données avec une séquence d'impulsions, la reconstruction d'images, et le post-traitement. Les techniques adaptatives de reconstruction d'images visent à intégrer des informations liées au mouvement dans le processus de génération d'images à partir de données acquises, ceci dans le but de compenser les artéfacts et problèmes provoqués par le mouvement. L'IRM dynamique avec rehaussement de contraste est une technique destinée à l'estimation de la fonction des organes, en suivant le passage d'un produit de contraste dans le corps. Les problèmes dus au mouvement, surtout dans l'application thoraco-abdominale de cette technique, se présentent sous forme d'artéfacts de mouvement et de décalages. Une nouvelle méthode de reconstruction d'images, DCE-GRICS (Reconstruction généralisée dynamique avec rehaussement de contraste par inversion d'un système couplé), a été développée pour résoudre ces problèmes. Le mouvement est estimé avec un modèle linéaire non rigide basé sur les signaux physiologiques issus de capteurs externes. Les changements d'intensité causés par le passage de l'agent de contraste sont rendus avec un modèle linéaire de changement de contraste basé sur le fonctions B-spline. Cette méthode a été appliquée et validée sur l'imagerie de la perfusion myocardique. Les inexactitudes causées par le mouvement dans les courbes intensité-temps sont compensées, afin de rendre plus fiable le post-tratement des courbes pour l'estimation de la perfusion myocardique
Magnetic Resonance Imaging (MRI) requires tools for managing physiological and other motion of the patient. The generation of MR images consists of three steps: data acquisition with a pulse sequence, image reconstruction and image post-processing. Adaptive image reconstruction techniques aim at integrating motion information into the process of image generation from the acquired data, in order to compensate for motion-induced artefacts and problems. Dynamic contrast-enhanced (DCE) MRI is a technique designed for assessing the function of organs, by following dynamically the passage of a contrast agent in the body after a bolus injection. Motion-induced problems, especially in abdominal and thoracic DCE-MRI, consist of motion artefacts and misregistration. A new image reconstruction method, DCE-GRICS (Dynamic Contrast-Enhanced Generalized Reconstruction by Inversion of Coupled Systems), has been developed for solving these issues. Motion is estimated with a non rigid linear model based on physiological signals obtained from external sensors. Dynamic intensity changes caused by the passage of the contrast agent are described using a linear contrast change model based on B-splines. The method is applied and validated on myocardial perfusion imaging. Motion-induced inaccuracies in intensity-time curves are compensated, in order to allow for more reliable myocardial perfusion quantification by curve post-processing

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Petric, Martin Peter. "Quantitative multi-slice cerebral perfusion imaging using arterial spin labelling MR techniques." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33821.

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This thesis presents the development and implementation of a quantitative multi-slice cerebral perfusion imaging technique using magnetic resonance imaging. An acquisition sequence capable of acquiring up to 9 slices was designed and implemented into two final pulse sequences: an interleaved perfusion/BOLD (blood oxygenation level dependent) sequence and a perfusion-only sequence. A number of practical imaging issues were addressed and resolved, including the design of an appropriate inversion pulse for labelling of arterial spins, spatial offsetting of this pulse for use in the arterial spin labelling technique chosen for implementation, and the design of various saturation pulses necessary for quantification of the technique. Experimental validation of the quantitative multi-slice perfusion technique was performed by measuring visual cortex cerebral blood flow (CBF) values in a group of 8 subjects using a block-design visual stimulus paradigm. Results indicated good sequence stability and CBF measurements agreed well with quantitative values found in the literature.

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Maredia, Neil. "Advanced techniques in first pass myocardial perfusion imaging by cardiac magnetic resonance." Thesis, University of Leeds, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.535669.

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Sam, Mpaballeng Catherine. "Calibration of sap flow techniques in citrus using the stem perfusion method." Diss., University of Pretoria, 2016. http://hdl.handle.net/2263/60855.

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The aim of this study was to calibrate and decide on the most appropriate sap flow technique for citrus species in the laboratory by pushing water through cut branches. Various sap flux density techniques, including heat pulse techniques (heat ratio and compensation heat pulse methods) and the heat dissipation technique were calibrated in four citrus species, namely Citrus sinensis (Oranges), Citrus reticulata (Soft citrus), Citrus paradise (Grapefruit) and Citrus limon (Lemons). Sap flux density, determined by these three techniques, was compared to that determined gravimetrically, which was calculated as the rate of change in the mass of water passing through the stem segment divided by the area of conducting wood. Results showed that the sap flux density was consistently underestimated by all techniques and across all citrus species/varieties. However, fairly good correlations (R2>0.7) between sap flux densities determined by a sap flow technique and gravimetric determinations were found for all techniques in some stems. Despite the good correlations found in the study, a single calibration factor for each technique could not be found for citrus using the stem perfusion method. Calibration factors were determined as the inverse of the slope of the linear relationship between sap flux density determined with a sap flow technique and that determined gravimetrically. These correction factors varied between citrus species and even within stems of the same species. Vessel dimensions (lumen diameter) and distance between groups of xylem vessels in citrus species was determined in order to try and explain the underestimation of sap flux density and the large variations in the calibration factors obtained during the calibration of the various sap flow techniques. The results revealed that the variation and underestimation were caused by contact of the probes with inactive xylem and due to differences in the nature of sapwood. The xylem vessels were unevenly distributed throughout the sapwood with large distance between the vessels, meaning that the sapwood of the studied species was considered inhomogeneous and therefore departed from the idealised theory of heat pulse measurements. The theory needs to be adapted to account for such sapwood and because of the large variation in the sapwood properties between different citrus species, calibration of these techniques is probably necessary for each new species and orchard in which measurements are to be made. Our analysis of the performance of sap flow techniques showed that the HR method should perhaps be considered before the CHP and TD methods.
Dissertation (MSc (Agric))--University of Pretoria, 2016.
Plant Production and Soil Science
MSc (Agric)
Unrestricted

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Ball, Daniel. "Development of novel hyperpolarized magnetic resonance techniques and compounds for perfused organs." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:21f6b661-cf21-46e7-9c7a-7c5d9ccf2b28.

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Hyperpolarization via the Dynamic Nuclear Polarization (DNP) technique has revolutionized our ability to study metabolic changes in real time. The aim of this thesis was to build upon previous work centered around the use of DNP within the isolated perfused rat heart, a well established model system for the study of cardiac metabolism, to enhance the information that can be obtained through the combination of DNP with perfused organs. Initially this was done by using the widely studied DNP probe, [1-¹³C]pyruvate, to generate images of metabolism within the isolated perfused rat heart. The developed technique was then successfully demonstrated in two models of myocardial infarction. The thesis then proceeds to develop an understanding of how the supra-physiological concentrations of [1-¹³C]pyruvate commonly used in DNP experiments can affect metabolism in the isolated perfused rat heart, and the way in which the myocardium responds to those changes if it is not adequately supplied with substrates ordinarily present in vivo, namely fatty acids. New methods of providing the heart with these required substrates were developed, without significant interference to the biochemical information acquired from DNP experiments. As [1-¹³C]pyruvate only provides information on a small subset of carbohydrate metabolism, the next chapter develops new compounds to be used with DNP, which would allow the exploration of short chain fatty acid metabolism (butyrate) as well as ketone body metabolism (β-hydroxybutyrate and acetoacetate), and other aspects of carbohydrate metabolism (lactate and alanine). These compounds were developed and then tested for their potential usefulness in the isolated perfused heart. Finally, as the isolated perfused rat heart lacks the diversity of genetic disease models available in the mouse, the final chapter expanded the use of DNP to the isolated perfused mouse heart with all the size challenges that this entails, and makes the transition from the heart to the liver, in order to provide an alternative metabolic viewpoint on the biochemistry of disease models. This thesis thereby permits studies involving isolated perfused organs to be carried out whilst exploiting all the tools that DNP has to offer and consequentially, allows for a vast array of physiologically derived information to help us better understand metabolic diseases.

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Книги з теми "Perfusion techniques"

B, Mongero Linda, and Beck, James R., B.S., eds. On bypass: Advanced perfusion techniques. Totowa, NJ: Humana Press, 2008.

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D, Myers R., Knott Peter J, and New York Academy of Sciences., eds. Neurochemical analysis of the conscious brain: Voltammetry and push-pull perfusion. New York, N.Y: New York Academy of Sciences, 1986.

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Yasunaru, Kawashima, and Takamoto Shinichi, eds. Brain protection in aortic surgery: Proceedings of the International Symposium on Current Techniques for Brain Protection in Aortic Surgery, Osaka, Japan, 15-16 September 1996. Amsterdam: Elsevier, 1997.

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On Bypass Advanced Perfusion Techniques. Humana Press, 2010.

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Safety and Techniques in Perfusion. Surgimedics, 1988.

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On bypass : advanced perfusion techniques. Humana, 2008.

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Clinical Perfusion MRI: Techniques and Applications. Cambridge University Press, 2013.

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Golay, Xavier, Gregory Zaharchuk, and Peter B. Barker. Clinical Perfusion MRI: Techniques and Applications. Cambridge University Press, 2013.

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Golay, Xavier, Gregory Zaharchuk, and Peter B. Barker. Clinical Perfusion MRI: Techniques and Applications. Cambridge University Press, 2013.

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(Editor), Linda B. Mongero, and James R. Beck (Editor), eds. On Bypass: Advanced Perfusion Techniques (Current Cardiac Surgery). Humana Press, 2008.

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Частини книг з теми "Perfusion techniques"

Perrin, Vincent. "Perfusion." In MRI Techniques, 103–39. Hoboken, NJ USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118761281.ch3.

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Jones, T., and M. J. Elliott. "Perfusion Techniques." In Surgery for Congenital Heart Defects, 167–86. Chichester, UK: John Wiley & Sons, Ltd, 2006. http://dx.doi.org/10.1002/0470093188.ch11.

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Emblem, Kyrre E., Christopher Larsson, Inge R. Groote, and Atle Bjørnerud. "MRI Perfusion Techniques." In Neuroimaging Techniques in Clinical Practice, 141–64. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-48419-4_11.

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Berger, Yaniv, Harveshp Mogal, and Kiran Turaga. "Peritoneal Perfusion Techniques." In Cancer Regional Therapy, 199–211. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-28891-4_17.

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Martin, Douglas Joseph, and Max Wintermark. "CT Perfusion." In Neuroimaging Techniques in Clinical Practice, 61–68. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-48419-4_6.

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Balaram, Sandhya K., John Markham, and Joseph J. DeRose. "Minimally Invasive Perfusion Techniques." In On Bypass, 141–70. Totowa, NJ: Humana Press, 2008. http://dx.doi.org/10.1007/978-1-59745-305-9_7.

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Nguyen, Jeffers, and Jana Ivanidze. "Advanced MR Perfusion Techniques." In Hybrid PET/MR Neuroimaging, 839–48. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-82367-2_70.

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Rashid, W., and D. H. Miller. "Perfusion MRI." In New Frontiers of MR-based Techniques in Multiple Sclerosis, 73–82. Milano: Springer Milan, 2003. http://dx.doi.org/10.1007/978-88-470-2237-9_6.

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Pennell, Dudley J., S. Richard Underwood, Durval C. Costa, and Peter J. Ell. "Stress Techniques." In Thallium Myocardial Perfusion Tomography in Clinical Cardiology, 13–22. London: Springer London, 1992. http://dx.doi.org/10.1007/978-1-4471-1857-2_3.

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Pennell, Dudley J., S. Richard Underwood, Durval C. Costa, and Peter J. Ell. "Imaging Techniques." In Thallium Myocardial Perfusion Tomography in Clinical Cardiology, 23–29. London: Springer London, 1992. http://dx.doi.org/10.1007/978-1-4471-1857-2_4.

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Тези доповідей конференцій з теми "Perfusion techniques"

Loktionova, Yulia I., Evgeny A. Zherebtsov, Elena V. Zharkikh, Igor O. Kozlov, Angelina I. Zherebtsova, Victor V. Sidorov, Sergei Sokolovski, Ilya E. Rafailov, Andrey V. Dunaev, and Edik U. Rafailov. "Studies of age-related changes in blood perfusion coherence using wearable blood perfusion sensor system." In Novel Biophotonics Techniques and Applications, edited by Arjen Amelink and Seemantini K. Nadkarni. SPIE, 2019. http://dx.doi.org/10.1117/12.2526967.

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Robinson, Paul S., Elaine P. Scott, and Thomas E. Diller. "Validation of Methodologies for the Estimation of Blood Perfusion Using a Minimally Invasive Probe." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0805.

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Abstract Parameter estimation techniques have been utilized in the development of methodologies to noninvasively measure blood perfusion using a new thermal surface probe. The core of this probe is comprised of a small, lightweight heat flux sensor that is placed in contact with tissue and provides time-resolved signals of heat flux and surface temperature while the probe is cooled by air jets. Parameter estimation techniques were developed that incorporate heat flux and temperature data with calculated data from a biothermal model of the tissue and probe. The technique simultaneously estimates blood perfusion and thermal contact resistance between the probe and tissue. Validation of this concept was carried out by experimentation with controlled perfusion through non-biological porous media. A controlled rate of uniform flow of warm water through a fine pore sponge provided a phantom model for blood perfusion through biological tissue. The parameter estimation technique was applied to measurements taken over a range of flow rates. Heat flux and temperature measurements and the resulting perfusion estimates correlated well with the experimentally imposed perfusion rate. This research helps establish the validity of using this method to develop a practical, noninvasive probe to clinically measure blood perfusion.

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Korfiatis, P., A. Karatrantou, S. Skiadopoulos, N. Arikidis, L. Costaridou, G. Panayiotakis, D. Apostolopoulos, and P. Vasilakos. "Myocardial perfusion SPECT imaging de-noising: A phantom study." In 2008 IEEE International Workshop on Imaging Systems and Techniques (IST). IEEE, 2008. http://dx.doi.org/10.1109/ist.2008.4659950.

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Venianaki, M., A. Karantanas, E. de Bree, T. Maris, E. Kontopodis, K. Nikiforaki, O. Salvetti, and K. Marias. "Assessment of soft-tissue sarcomas perfusion using data-driven techniques." In 2018 IEEE EMBS International Conference on Biomedical & Health Informatics (BHI). IEEE, 2018. http://dx.doi.org/10.1109/bhi.2018.8333441.

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Diop, Mamadou. "Quantitative Tissue Spectroscopy Techniques for Measuring Cerebral Perfusion and Metabolism." In Optics and the Brain. Washington, D.C.: OSA, 2018. http://dx.doi.org/10.1364/brain.2018.bf2c.4.

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Kind, Taco, Ivo Houtzager, Theo J. C. Faes, and Mark B. M. Hofman. "Evaluation of model-independent deconvolution techniques to estimate blood perfusion." In 2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2010). IEEE, 2010. http://dx.doi.org/10.1109/iembs.2010.5626615.

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Sdobnov, Anton Y., Alexander Bykov, Alexey Popov, Ilze Lihacova, Alexey Lihachev, Janis Spigulis, and Igor Meglinski. "Combined multi-wavelength laser speckle contrast imaging and diffuse reflectance imaging for skin perfusion assessment." In Novel Biophotonics Techniques and Applications, edited by Arjen Amelink and Seemantini K. Nadkarni. SPIE, 2019. http://dx.doi.org/10.1117/12.2526921.

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Zhihua Xie, Guodong Liu, Shiqian Wu, and Zhijun Fang. "Infrared face recognition based on blood perfusion and fisher linear discrimination analysis." In 2009 IEEE International Workshop on Imaging Systems and Techniques (IST). IEEE, 2009. http://dx.doi.org/10.1109/ist.2009.5071608.

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Lyra, Maria, Marios Sotiropoulos, Nefeli Lagopati, and Maria Gavrilleli. "Quantification of myocardial perfusion in 3D SPECT images- stress/rest volume differences." In 2010 IEEE International Conference on Imaging Systems and Techniques (IST). IEEE, 2010. http://dx.doi.org/10.1109/ist.2010.5548486.

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Manikis, Georgios C., Katerina Nikiforaki, Georgios Ioannidis, Nikolaos Papanikolaou, and Kostas Marias. "Addressing Intravoxel Incoherent Motion challenges through an optimized fitting framework for quantification of perfusion." In 2016 IEEE International Conference on Imaging Systems and Techniques (IST). IEEE, 2016. http://dx.doi.org/10.1109/ist.2016.7738275.

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Звіти організацій з теми "Perfusion techniques"

Hassanzadeh, Sara, Sina Neshat, Afshin Heidari, and Masoud Moslehi. Myocardial Perfusion Imaging in the Era of COVID-19. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, April 2022. http://dx.doi.org/10.37766/inplasy2022.4.0063.

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Анотація:

Review question / Objective: This review studies all aspects of myocardial perfusion imaging with single-photon emission computed tomography (MPI SPECT) after the COVID-19 pandemic. Condition being studied: Many imaging modalities have been reduced after the COVID-19 pandemic. Our focus in this review is to see if the number of MPIs is lowered or not and, if so, why. Furthermore, it is possible that a combination of CT attenuation correction and MPI could yield findings. In this study, we'll also look for these probable findings. Third, we know from previous studies that COVID might cause cardiac injuries in some people. Since MPI is a cardiovascular imaging technique, it might shows those injuries. So we'll review articles to find out in patients with active COVID infection, long COVID, or previous COVID cases what findings in MPI those cardiac injuries can cause.

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