Relevant bibliographies by topics / Inhomogenous Imaging

Academic literature on the topic 'Inhomogenous Imaging'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Inhomogenous Imaging"

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Crone, M., I. R. Barkshire, M. Prutton, and P. G. Kenny. "Auger imaging from rough, chemically inhomogenous, materials." Surface and Interface Analysis 22, no. 1-12 (July 1994): 581–84. http://dx.doi.org/10.1002/sia.7402201123.

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Chiavassa, A., S. Lacour, F. Millour, T. Driebe, M. Wittkowski, B. Plez, E. Thiébaut, et al. "VLTI/AMBER spectro-interferometric imaging of VX Sagittarii's inhomogenous outer atmosphere." Astronomy and Astrophysics 511 (February 2010): A51. http://dx.doi.org/10.1051/0004-6361/200913288.

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Siarkowski, M. "Imaging stellar coronae from eclipsing binary X-ray light curves." Symposium - International Astronomical Union 176 (1996): 469–76. http://dx.doi.org/10.1017/s0074180900083480.

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The Sun is the only star whose X-ray emitting, strongly inhomogenous corona can be spatially resolved via direct observations. For other late type-stars it is known that coronae do exist, but the spatial distribution of their emission is largely unknown. However in the case of eclipsing binaries this spatial structure can be potentially deduced from the orbital modulation of the observed X-ray light curve. The best candidates for this kind of analysis are RS CVn binaries, the most active and luminous late-type X-ray coronal sources. These are detached binaries with periods typically between 0.5 and 20 days, in which one or both stars have evolved into subgiant or giant of spectral type G or K. For short orbital periods (< 14 days) the tidal forces lead to synchronization of the orbital and rotational periods, so these systems rotate rigidly.
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Lu, Pan, and Panagiotis Kosmas. "Three-Dimensional Microwave Head Imaging with GPU-Based FDTD and the DBIM Method." Sensors 22, no. 7 (March 31, 2022): 2691. http://dx.doi.org/10.3390/s22072691.

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We present a preliminary study of microwave head imaging using a three-dimensional (3-D) implementation of the distorted Born iterative method (DBIM). Our aim is to examine the benefits of using the more computationally intensive 3-D implementation in scenarios where limited prior information is available, or when the target occupies an area that is not covered by the imaging array’s transverse planes. We show that, in some cases, the 3-D implementation outperforms its two-dimensional (2-D) counterpart despite the increased number of unknowns for the linear problem at each DBIM iteration. We also discuss how the 3-D algorithm can be implemented efficiently using graphic processing units (GPUs) and validate this implementation with experimental data from a simplified brain phantom. In this work, we have implemented a non-linear microwave imaging approach using DBIM with GPU-accelerated FDTD. Moreover, the paper offers a direct comparison of 2-D and 3-D microwave tomography implementations for head imaging and stroke detection in inhomogenous anatomically complex numerical head phantoms.
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Kantilaras, Anggita Putri. "Role of Ultrasound in the Diagnosis Approach of Malignant Solitary Fibrous Tumor." Journal of Diagnostic Medical Sonography 34, no. 5 (July 23, 2018): 391–95. http://dx.doi.org/10.1177/8756479318781779.

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This is a case study of solitary fibrous tumor (SFT), which is a rare neoplasm of mesenchymal origin that comprises less than 2% of all soft tissue tumors. SFT located in the extremities, especially in the legs, has a high possibility of developing malignancy. The case study presented demonstrates a sonogram which identified an inhomogenous hypoechoic solid lesion located in the subcutaneous layer of the femoral region. The use of Doppler showed hypervascular activity in the hyperechoic area. This finding was consistent with malignant SFT and confirmed by histopathologic exam. The possibility of an SFT should be a diagnostic consideration with any large soft tissue mass in extremities. This is a further consideration with the diagnostic medical sonography findings demonstrating a hypoechoic, well-defined mass that has a large collateral feeding vessel and displaces the adjacent structures.
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Krohn, T., A. Ghassemi, M. Gerressen, F. A. Verburg, F. M. Mottaghy, and F. F. Behrendt. "Bone graft scintigraphy." Nuklearmedizin 51, no. 05 (2012): 201–4. http://dx.doi.org/10.3413/nukmed-0469-12-01.

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Summary Aim: To evaluate a scintigraphic tool for intra - operative assessment of vascularized bone graft perfusion before and after transplantation. Patients, methods: This pilot study included three patients scheduled for surgical segmental mandibulectomy followed by reconstruction with a vascularized iliac bone graft. A continuous 99mTc-pertechnetate infusion was applied selectively arterial into the blood vessel supplying the respective graft before osteotomy as well as after transplantation. Perfusion was analysed by scintigrams acquired using the intraoperative camera systems declipseSPECT and Sentinella. Results were compared qualitatively. Results: Before harvesting the graft, intraoperative scintigraphy revealed a clearly delineated area of the iliac crest with a relatively homogenous pertechnetate distribution representing good perfusion. After osteotomy, transplantation to the mandibula and re-anastomosis of the nutrient vessels, scintigraphy in all patients showed a moderately inhomogenous distribution pattern of the pertechnetate indicating an adequate perfusion of the bone transplant through the arterial anastomosis. Conclusion: Intraoperative assessment of bone graft perfusion is possible with the imaging systems Sentinella as well as with declipse SPECT using a continuous intra-arterial infusion of 99mTc-pertechnetate.
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Krška, Zdeněk, Jan Šváb, David Hoskovec, and Jan Ulrych. "Pancreatic Cancer Diagnostics and Treatment – Current State." Prague Medical Report 116, no. 4 (2015): 253–67. http://dx.doi.org/10.14712/23362936.2015.65.

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Pancreatic ductal adenocarcinoma (PDAC) represents permanent and ever rising issue worldwide. Five-year survival does not exceed 3 to 6%, i.e. the worst result among solid tumours. The article evaluates the current state of PDAC diagnostics and treatment specifying also development and trends. Percentage of non-resectable tumours due to locally advanced or metastatic condition varies 60–80%, mostly over 80%. Survival with non-resectable PDAC is 4 to 8 months (median 3.5). In contrast R0 resection shows the survival 18–27 months. Laboratory and imaging screening methods are not indicated on large scale. Risk factors are smoking, alcohol abuse, chronic pancreatitis, diabetes mellitus. Genetic background in most PDAC has not been detected yet. Some genes connected with high risk of PDAC (e.g. BRCA2, PALB2) have been identified as significant and highly penetrative, but link between PDAC and these genes can be seen only in 10–20%. This article surveys perspective oncogenes, tumour suppressor genes, microRNA. Albeit CT is still favoured over other imaging methods, involvement of NMR rises. Surgery prefers the “vessel first” approach, which proves to be justified especially in R0 resection. According to EBM immunotherapy same as radiotherapy are not significant in PDAC treatment. Chemotherapy shows limited importance in conversion treatment of locally advanced or borderline tumours or in case of metastatic spread. Unified procedures cannot be defined due to inhomogenous arrays. Surgical resection is the only chance for curative treatment of PDAC and depends mainly on timely indication for surgery and quality of multidisciplinary team in a high-volume centre.
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Lischka, F. W., and D. Schild. "Standing calcium gradients in olfactory receptor neurons can be abolished by amiloride or ruthenium red." Journal of General Physiology 102, no. 5 (November 1, 1993): 817–31. http://dx.doi.org/10.1085/jgp.102.5.817.

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Digital imaging and the patch clamp technique were used to investigate the intracellular calcium concentration in olfactory receptor neurons using the Ca2+ indicator dyes fura-2 and fura-2/AM. The spatial distribution of Cai2+ as well as its modification by the drugs Amiloride and Ruthenium Red were studied. Resting calcium concentrations in cells loaded with fura-2/AM were between 10 and 200 nM. In cells that were loaded with the pentapotassium salt of fura-2 through the patch pipette, calcium concentrations were in the same range if ATP was added to the pipette solution. Otherwise, Ca2+ reached concentrations of approximately 500 nM. Most of the observed cells showed a standing gradient of calcium, the calcium concentrations in the distal dendritic end of the cell being higher than in the soma. In some cells, the gradient was markedly reduced or abolished by adding either Amiloride or Ruthenium Red to the bath solution. In a few cells, neither drug had any effect upon the gradient. It is suggested that the inhomogenous spatial distribution of intracellular calcium in olfactory cells of Xenopus laevis is brought about by an influx of calcium ions through two different calcium permeable conductances in the peripheral compartments of the cells. The fact that only either Ruthenium Red or Amiloride abolished the standing calcium gradient further suggested that the two conductances blocked were presumably not coexpressed in the same cells.
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Čapek, Martin, Michaela Blažíková, Ivan Novotný, Helena Chmelová, David Svoboda, Barbora Radochová, Jiří Janáček, and Ondrej Horváth. "The Wavelet-Based Denoising Of Images in Fiji, With Example Applications in Structured Illumination Microscopy." Image Analysis & Stereology 40, no. 1 (April 9, 2021): 3–16. http://dx.doi.org/10.5566/ias.2432.

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Filtration of super-resolved microscopic images brings often troubles with removing undesired image parts like, e.g., noise, inhomogenous background and reconstruction artifacts. Standard filtration techniques, e.g., convolution- or Fourier transform-based methods are not always appropriate, since they may lower image resolution that was acquired by hi-tech and expensive microscopy systems. Thus, in this article it is proposed to filter such images using discrete wavelet transform (DWT). Newly developed Wavelet_Denoise plugin for free available Fiji software package demonstrates important possibilities of applying DWT to images: Decomposition of a filtered picture using various wavelet filters and levels of details with showing decomposed images and visualization of effects of back transformation of the picture with chosen level of suppression or denoising of wavelet coefficients. The Fiji framework allows, for example, using a plethora of various microscopic image formats for data opening, users can easily install the plugin through a menu command and the plugin supports processing 3D images in Z-stacks. The application of the plugin for removal of reconstruction artifacts and undesirable background in images acquired by super-resolved structured illumination microscopy is demonstrated as well.
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Gutman, S., and M. Klibanov. "Three-dimensional inhomogeneous media imaging." Inverse Problems 10, no. 6 (December 1, 1994): L39—L46. http://dx.doi.org/10.1088/0266-5611/10/6/002.

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Dissertations / Theses on the topic "Inhomogenous Imaging"

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Arpinar, Volkan Emre. "Analysis Of Magnetic Resonance Imaging In Inhomogenous Main Magnetic Field." Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12611008/index.pdf.

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In this study, analysis of Magnetic Resonance Imaging (MRI) in inhomogeneous main magnetic field is conducted. A numerical model based on Bloch equation is implemented for MRI, to understand effect of inhomogeneous magnetic field to Magnetic Resonance (MR) signal. Using the model, relations between inhomogeneity levels in main magnetic field with energy, decay time, bandwidth of the FID signal is investigated. Also relation between the magnetic field inhomogeneity and field of view is determined. To simulate measurement noise in the FID signal under inhomogeneous main magnetic field, noise model for MRI with homogeneous main field is altered. Following the numerical model development an image reconstruction algorithm for inhomogeneous main magnetic field is developed to remove undesirable effect of field inhomogeneity in image reconstruction. To evaluate capability of the reconstruction algorithm, the algorithm is tested for several input parameters which results in different noise levels in the FID signal. Then reconstruction errors are analysed to gain information about feasibility of MRI in inhomogeneous main magnetic field.
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Lee, Delman. "Seismic imaging through inhomogeneous media." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305556.

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Thayer, David A. "Imaging Techniques and Hardware for Inhomogeneous MRI." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd535.pdf.

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Yigitler, Huseyin. "Permanent Magnet Design And Image Reconstruction Algorithm For Magnetic Resonance Imaging In Inhomogeneous Magnetic Fields." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/2/12607627/index.pdf.

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Recently, the use of permanent magnets as magnetic field sources in biomedical applications has become widespread. However, usage of permanent magnets in magnetic resonance imaging (MRI) is limited due to their inhomogeneous magnetic field distributions. In this thesis, shape and geometry optimization of a magnet is performed. Moreover, placement of more than one magnet is optimized to obtain desired magnetic field distribution in specific region of space. However, obtained magnetic field distribution can not be used in the conventional MRI image reconstruction techniques. Consequently, an image reconstruction technique for MRI in inhomogeneous magnetic fields is developed. Apart from these, since any reconstruction technique requires signal data, an MRI simulator in inhomogeneous magnetic fields is constructed as a part of this thesis. Obtained results show that the theory developed in this thesis is valid. Consequently, new MRI devices that have permanent magnets as magnetic field sources can be constructed in the future.
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Akram, Farhan. "Active contours for intensity inhomogeneous image segmentation." Doctoral thesis, Universitat Rovira i Virgili, 2017. http://hdl.handle.net/10803/442961.

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La “inhomogeneidad” (falta d'homogeneïtat) d'intensitat és un problema ben conegut en la segmentació d'imatges, la qual cosa afecta la precisió dels mètodes de segmentació basats en la intensitat. En aquesta tesi, es proposen mètodes de contorn actiu basat en fronteres i regions per segmentar imatges inhomogènies. En primer lloc, s'ha proposat un mètode de contorn actiu basat en fronteres mitjançant Diferència de Gaussianes (DoG), que ajuda a segmentar l'estructura global de la imatge. En segon lloc, hem proposat un mètode de contorn actiu basat en regions per corregir i segmentar imatges inhomogènies. S'ha utilitzat un nucli de transformació de fase (phase stretch transform - PST) per calcular noves intensitats mitjanes i camps de polarització, que s'empren per definir una imatge ajustada de polarització. En tercer lloc, s'ha proposat un altre mètode de contorn actiu basat en regions utilitzant un funcional d'energia basat en imatges ajustades locals i globals. El camp de polarització s'aproxima amb una distribució Gaussiana i el biaix de les regions no homogènies es corregeix dividint la imatge original pel camp aproximat de polarització. Finalment, s'ha proposat un mètode híbrid de contorns actius multifàsic (quatre fases) per dividir una imatge de RM cerebral en tres regions diferents: matèria blanca (WM), matèria grisa (GM) i líquid cefaloraquidi (CSF). En aquest treball, també s'ha dissenyat un mètode de post-processat (correcció de píxels) per millorar la precisió de les regions WM, GM i CSF segmentades. S'han utilitzat resultats experimentals tant amb imatges sintètiques com amb imatges reals de RM del cervell per a una comparació quantitativa i qualitativa amb mètodes de contorns actius de l'estat de l'art per mostrar els avantatges de les tècniques de segmentació proposades.
La “inhomogeneidad” (falta de homogeneidad) de intensidad es un problema bien conocido en la segmentación de imágenes, lo que afecta la precisión de los métodos de segmentación basados en la intensidad. En esta tesis, se proponen métodos de contorno activo basado en bordes y regiones para segmentar imágenes inhomogéneas. En primer lugar, se ha propuesto un método de contorno activo basado en fronteras mediante Diferencia de Gaussianas (DoG), que ayuda a segmentar la estructura global de la imagen. En segundo lugar, hemos propuesto un método de contorno activo basado en regiones para corregir y segmentar imágenes inhomogéneas. Se ha utilizado un núcleo de transformación de fase (phase stretch transform - PST) para calcular nuevas intensidades medias y campos de polarización, que se emplean para definir una imagen ajustada de polarización. En tercer lugar, se ha propuesto otro método de contorno activo basado en regiones utilizando un funcional de energía basado en imágenes ajustadas locales y globales. El campo de polarización se aproxima con una distribución Gaussiana y el sesgo de las regiones no homogéneas se corrige dividiendo la imagen original por el campo aproximado de polarización. Finalmente, se ha propuesto un método híbrido de contornos activos multifásico (cuatro fases) para dividir una imagen de RM cerebral en tres regiones distintas: materia blanca (WM), materia gris (GM) y líquido cefalorraquídeo (CSF). En este trabajo, también se ha diseñado un método de post-procesado (corrección de píxeles) para mejorar la precisión de las regiones WM, GM y CSF segmentadas. Se han utilizado resultados experimentales tanto con imágenes sintéticas como con imágenes reales de RM del cerebro para una comparación cuantitativa y cualitativa con métodos de contornos activos del estado del arte para mostrar las ventajas de las técnicas de segmentación propuestas.
Intensity inhomogeneity is a well-known problem in image segmentation, which affects the accuracy of intensity-based segmentation methods. In this thesis, edge-based and region-based active contour methods are proposed to segment intensity inhomogeneous images. Firstly, we have proposed an edge-based active contour method based on the Difference of Gaussians (DoG), which helps to segment the global structure of the image. Secondly, we have proposed a region-based active contour method to both correct and segment intensity inhomogeneous images. A phase stretch transform (PST) kernel has been used to compute new intensity means and bias field, which are employed to define a bias fitted image. Thirdly, another region-based active contour method has been proposed using an energy functional based on local and global fitted images. Bias field is approximated with a Gaussian distribution and the bias of intensity inhomogeneous regions is corrected by dividing the original image by the approximated bias field. Finally, a hybrid region-based multiphase (four-phase) active contours method has been proposed to partition a brain MR image into three distinct regions: white matter (WM), gray matter (GM) and cerebrospinal fluid (CSF). In this work, a post-processing (pixel correction) method has also been devised to improve the accuracy of the segmented WM, GM and CSF regions. Experimental results with both synthetic and real brain MR images have been used for a quantitative and qualitative comparison with state-of-the-art active contour methods to show the advantages of the proposed segmentation techniques.
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Yilmaz, Ayhan Ozan. "Rf Coil System Design For Mri Applications In Inhomogeneous Main Magnetic Field." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608477/index.pdf.

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In this study, RF coil geometries are designed for MRI applications using inhomogeneous main magnetic fields. The current density distributions that can produce the desired RF magnetic field characteristics are obtained on predefined cubic, cylindrical and planar surfaces and Tikhonov, CGLS, TSVD and Rutisbauer regularization methods are applied to match the desired and generated magnetic fields. The conductor paths, which can produce the current density distribution calculated for each surface selection and regularization technique, are determined using stream functions. The magnetic fields generated by the current distributions are calculated and the error percentages between the desired and generated magnetic fields are found. Optimum conductor paths that are going to be produced on cubic, cylindrical and planar surfaces and the required regularization method are determined on the basis of error percentages and realizability of the conductor paths. The optimum conductor path calculated for the planar coil is realized and in the measurement done by LakeShore 3-Channel Gaussmeter, an average error percentage of 11 is obtained between the theoretical and measured magnetic field. The inductance values of the realized RF coil are measured
the tuning and matching capacitance values are calculated and the frequency characteristics of the system is tested using Electronic Workbench 5.1. The quality factor value of the tested system is found to be 162.5, which corresponds to a bandwidth of 39,2 KHz at 6,387 MHz (operating frequency of METU MRI system). The techniques suggested in this study can be used in order to design and realize RF coils on prede¯
ned arbitrary surfaces for inhomogeneous main magnetic fields. In addition, a hand held MRI device can be manufactured which uses a low cost permanent magnet to provide a magnetic field and generates the required RF field with the designed RF coil using the techniques suggested in this study.
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Bhallamudi, Vidya Praveen. "Spins in heterogeneous landscapes: Consequences for transport and imaging." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1306871981.

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Nunes, Dourado de Carvalho Victor. "Dipolar order relaxation (T1D) in myelin : a combined inhomogeneous MT (ihMT) MRI and Jeener-Broekaert NMR approach." Thesis, Aix-Marseille, 2020. http://www.theses.fr/2020AIXM0195.

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Le transfert d’aimantation inhomogène (ihMT) est une technique IRM qui permet d’accéder in vivo au contenu de myéline dans le système nerveux central. La technique ihMT met en évidence des effets d’ordre dipolaire pondérés par le temps de relaxation dipolaire, T1D. T1D est modulé par la dynamique moléculaire, fournissant néanmoins une sensibilité plus accrue aux processus liés aux mouvements lents. Accéder aux valeurs de T1D représente une nouvelle voie d’investigation dans la caractérisation des tissus biologiques et des pathologies associées. IhMT est hautement spécifique de la myéline, et pourrait être utilisée in vivo pour aider au diagnostic et au suivi des patients atteints de sclérose en plaques. Des expériences ont suggéré l’existence de plusieurs composantes T1D dans les tissus myélinisés probablement due à une mobilité moléculaire hétérogène. Une méthode de RMN, technique Jeener-Broekaert, a été utilisée dans ce travail afin de mieux appréhender la relaxation T1D dans les membranes. Avec cette séquence, une relaxation T1D multi-composante a été observé dans des membranes lipidiques synthétiques, simulant la myéline. Ce travail propose un nouveau modèle quantitatif ihMT permettant de considérer plusieurs composantes T1Ds. Des cartes T1D quantitatives ont ainsi été générées. L’application du modèle proposé a permis de révéler l’existence de deux composantes T1Ds, une courte de l’ordre de 500 μs et une longue de l’ordre de 10 ms, dans la moelle épinière de rat. La mesure combinée de T1D par RMN JB et IRM ihMT permettra de caractériser plus précisément les composantes de composition, structure et dynamique moléculaire des membranes contribuant au signal ihMT
Inhomogeneous magnetization transfer (ihMT) is a MRI technique that enables accurate measurement of myelin content in the central nervous system in vivo. ihMT highlights the dipolar order effects and is weighted by the associated relaxation time T1D. T1D is modulated by molecular dynamics, however it provides additional sensitivity to slow motional processes. Hence assessing T1D is important to add new information to characterize biological tissues and associated pathophysiology. ihMT and other MRI techniques can be used to evaluate myelin in vivo, and help diagnosis and follow-up of multiple sclerosis patients. New experiments have suggested that myelinated tissues and membranes would exhibit multiple T1D components probably due to a heterogeneous molecular mobility and relatively slow magnetization mixing mechanisms. To better understand T1D relaxation, the presented work uses a NMR method, the Jeener-Broekaert sequence. With this sequence, multi-T1D relaxation was observed on synthetic lipid membranes, surrogate models of myelin. This work proposes a new ihMT model with two dipolar order reservoirs and associated T1Ds. Quantitative T1D maps were generated. Implementation of the proposed model found short and long T1D on the order of 500 μs and 10 ms, respectively, in fixed rat spinal cord. Combining NMR and MRI assessments of T1D may help understand what states of myelin, in terms of composition, structure and molecular dynamics, contribute to the ihMT signal in vivo
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Prevost, Valentin. "Validation du transfert d'aimantation inhomogène (ihMT) comme nouveau biomarqueur IRM de la myéline." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0037/document.

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L’imagerie par résonance magnétique (IRM) est une technique d’imagerie médicale largement utilisée pour son caractère non-invasif et pour sa capacité à explorer les tissus mous. Des techniques IRM avancées et innovantes ont été développées de manière à améliorer la spécificité du signal des techniques conventionnelles et ainsi accéder à de nouvelles informations. Un axe de recherche particulièrement important en IRM concerne la possibilité d’accéder in vivo à des informations sur la myéline. Cette dernière est un constituant majeur du système nerveux central qui assure la bonne conduction nerveuse. Sa dégradation est l’une des caractéristiques de la sclérose en plaques, qui est la première cause de handicap sévère non traumatique chez le jeune adulte. Imager la myéline par IRM demeure néanmoins un challenge du fait du temps de relaxation T2 très court des protons la constituant. Le transfert d’aimantation inhomogène (ihMT) est une technique récemment découverte qui permet d’isoler le signal de composantes macromoléculaires grâce à leurs propriétés de relaxation dipolaire, caractérisées par la constante T1D. L’objectif de ce travail de thèse a concerné la validation de la technique ihMT comme biomarqueur de la myéline et l’évaluation de la spécificité du signal pour la myéline, sur des modèles murins (souris)
Magnetic resonance imaging (MRI) is a non-invasive medical imaging technique, widely used to explore soft tissues. Advanced and innovated MRI techniques have been developed to improve the specificity of conventional MR sequences thus allowing accessing new information. A particularly important research topic concerns the ability to in vivo access myelin information. Myelin is a major component of the central nervous system responsible for a good nerve conduction. Myelin alteration occurs in multiple sclerosis, one of the main cause for young adult permanent disability. However, myelin MRI is challenged by the very short relaxation time, T2, of myelin protons. Inhomogeneous magnetization transfer (ihMT) is a recent technique, which allows assessing macromolecular tissue component by exploiting their dipolar order relaxation properties, characterized by the time constant T1D. The objective of this thesis concerned the validation of ihMT as a myelin biomarker and the evaluation of the specificity of ihMT for myelin on mouse models
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周卓平. "Imaging inhomogeneous penetrable media:electromagnetic inverse scattering and diffuse light imaging techniques." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/04259713504241466819.

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Books on the topic "Inhomogenous Imaging"

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Bociort, Florian. Imaging properties of gradient-index lenses. Berlin: Verlag Köster, 1994.

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Book chapters on the topic "Inhomogenous Imaging"

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Dorme, Christian, and Mathias Fink. "Matched Filter Imaging Through Inhomogeneous Media." In Acoustical Imaging, 1–8. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4419-8772-3_1.

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Burov, V. A., I. E. Gurinovich, O. V. Rudenko, and E. Ya Tagunov. "Nonlinear Acoustical Tomography in Inhomogeneous Media." In Acoustical Imaging, 125–30. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4419-8772-3_20.

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Hardy, Edme H. "Imaging with an Inhomogeneous Gradient." In NMR Methods for the Investigation of Structure and Transport, 203–5. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21628-2_9.

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Gan, W. S. "A Statistical Approach to Sound Scattering in Random Inhomogeneous Medium." In Acoustical Imaging, 427–34. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4613-0791-4_45.

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Cassereau, D., and M. Fink. "Theoretical Modelisation of Time-Reversal Cavities, Application to Self-Focussing in Inhomogeneous Media." In Acoustical Imaging, 141–47. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3370-2_24.

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Marsh, K. A., J. M. Richardson, and J. F. Martin. "Application of the Phase Closure Technique to Passive Acoustic Imaging Through Inhomogeneous Media." In Acoustical Imaging, 133–40. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2523-9_12.

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Eftimiu, C. "Inverse Electromagnetic Scattering for Radially Inhomogeneous Dielectric Spheres." In Inverse Methods in Electromagnetic Imaging, 157–76. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-010-9444-3_11.

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Yin, Feng, J. S. Wang, B. L. Gu, Q. S. Li, and Yu Wei. "An Inverse Scattering Method for Reconstructing Distribution of the Velocity Perturbation in Inhomogeneous Background Medium." In Acoustical Imaging, 629–36. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2958-3_85.

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Tijhuis, A. G. "Inverse Profiling for an Inhomogeneous, Plane-Stratified Lossy Causal Medium." In Inverse Problems and Theoretical Imaging, 370–85. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75298-8_46.

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Arpınar, V. Emre, and B. M. Eyüboğlu. "Magnetic Resonance Imaging in Inhomogeneous Magnetic Fields with Noisy Signal." In IFMBE Proceedings, 410–13. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-89208-3_97.

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Conference papers on the topic "Inhomogenous Imaging"

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Poudel, Joemini, Thomas P. Matthews, Kenji Mitsuhashi, Alejandro Garcia-Uribe, Lihong V. Wang, and Mark A. Anastasio. "Iterative image reconstruction in elastic inhomogenous media with application to transcranial photoacoustic tomography." In SPIE Medical Imaging, edited by Neb Duric and Brecht Heyde. SPIE, 2017. http://dx.doi.org/10.1117/12.2254141.

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Han, Minchao, Robert Gordon, Mohsen Talei, Michael Brear, and Joshua Lacey. "Imaging the ignition of dense, inhomogenous liquid fuel sprays at elevated temperatures and pressures." In 22nd Australasian Fluid Mechanics Conference AFMC2020. Brisbane, Australia: The University of Queensland, 2020. http://dx.doi.org/10.14264/d66d1aa.

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Han, Hsiu C., and Chao-Sheng Wang. "Microwave imaging in inhomogeneous media." In SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, edited by Satish S. Udpa and Hsiu C. Han. SPIE, 1994. http://dx.doi.org/10.1117/12.186719.

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Ren, Jing. "Adaptive deformable image registration of inhomogeneous tissues." In SPIE Medical Imaging, edited by Robert J. Webster and Ziv R. Yaniv. SPIE, 2015. http://dx.doi.org/10.1117/12.2082487.

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Zheng, Bing, Hao Zhang, Haiyong Zheng, and T. Aaron Gulliver. "Underwater imaging based on inhomogeneous illumination." In 2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PacRim). IEEE, 2011. http://dx.doi.org/10.1109/pacrim.2011.6033010.

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Raghupathy, Ramesh, and Victor H. Barocas. "An Inverse Finite Element Method for Estimating Elastic Coefficients of Anisotropic and Inhomogeneous Materials." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-193089.

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Abstract:
Elastography, the imaging of soft tissues on the basis of elastic modulus has been actively studied in the recent years. Since cancerous tissue is often stiffer than normal tissue [1] its response to mechanical stimuli is considerably different. Hence information about the mechanical properties of cancers and tumors can be potentially extracted from imaging. This inverse problem of estimating mechanical properties from imaging and displacement data holds promise for applications in medical diagnostics.
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Barrett, H. H., J. P. Rolland, R. F. Wagner, and K. J. Myers. "Detection And Discrimination Of Known Signals In Inhomogeneous, Random Backgrounds." In 1989 Medical Imaging, edited by Samuel J. Dwyer III, R. Gilbert Jost, and Roger H. Schneider. SPIE, 1989. http://dx.doi.org/10.1117/12.953202.

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Ye, Xiuzhu. "An inhomogeneous background microwave imaging algorithm as applied in bio-imaging." In 2019 International Conference on Microwave and Millimeter Wave Technology (ICMMT). IEEE, 2019. http://dx.doi.org/10.1109/icmmt45702.2019.8992524.

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Larouche, Stephane. "Plasma-deposited inhomogeneous optical filters." In Opto-Canada: SPIE Regional Meeting on Optoelectronics, Photonics, and Imaging, edited by John C. Armitage. SPIE, 2017. http://dx.doi.org/10.1117/12.2283968.

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Cheng, Jun, Ronald Chung, Edmund Y. Lam, Kenneth S. M. Fung, Fan Wang, and W. H. Leung. "Boundary detection of projected fringes on surface with inhomogeneous reflectance function." In Electronic Imaging 2006, edited by Fabrice Meriaudeau and Kurt S. Niel. SPIE, 2006. http://dx.doi.org/10.1117/12.648604.

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