Search Results - "Segars, William P"

DukeSim: A Realistic, Rapid, and Scanner-Specific Simulation Framework in Computed Tomography by Abadi, Ehsan, Harrawood, Brian, Sharma, Shobhit, Kapadia, Anuj, Segars, William P., Samei, Ehsan

“…The purpose of this study was to develop a CT simulation platform that is: 1) compatible with voxel-based computational phantoms; 2) capable of modeling the…”
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Phase-contrast virtual chest radiography by Häggmark, Ilian, Shaker, Kian, Nyrén, Sven, Al-Amiry, Bariq, Abadi, Ehsan, P Segars, William, Samei, Ehsan, M Hertz, Hans

“…Respiratory X-ray imaging enhanced by phase contrast has shown improved airway visualization in animal models. Limitations in current X-ray technology have…”
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Modeling Lung Architecture in the XCAT Series of Phantoms: Physiologically Based Airways, Arteries and Veins by Abadi, Ehsan, Segars, William P., Sturgeon, Gregory M., Roos, Justus E., Ravin, Carl E., Samei, Ehsan

“…The purpose of this paper was to extend the extended cardiac-torso (XCAT) series of computational phantoms to include a detailed lung architecture including…”
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Development of realistic physical breast phantoms matched to virtual breast phantoms based on human subject data by Kiarashi, Nooshin, Nolte, Adam C., Sturgeon, Gregory M., Segars, William P., Ghate, Sujata V., Nolte, Loren W., Samei, Ehsan, Lo, Joseph Y.

“…Purpose: Physical phantoms are essential for the development, optimization, and evaluation of x‐ray breast imaging systems. Recognizing the major effect of…”
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TransMorph: Transformer for unsupervised medical image registration by Chen, Junyu, Frey, Eric C., He, Yufan, Segars, William P., Li, Ye, Du, Yong

“…In the last decade, convolutional neural networks (ConvNets) have been a major focus of research in medical image analysis. However, the performances of…”
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MRXCAT: Realistic numerical phantoms for cardiovascular magnetic resonance by Wissmann, Lukas, Santelli, Claudio, Segars, William P, Kozerke, Sebastian

“…Computer simulations are important for validating novel image acquisition and reconstruction strategies. In cardiovascular magnetic resonance (CMR), numerical…”
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Virtual clinical trials in medical imaging: a review by Abadi, Ehsan, Segars, William P, Tsui, Benjamin M. W, Kinahan, Paul E, Bottenus, Nick, Frangi, Alejandro F, Maidment, Andrew, Lo, Joseph, Samei, Ehsan

“…The accelerating complexity and variety of medical imaging devices and methods have outpaced the ability to evaluate and optimize their design and clinical…”
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Development of scalable lymphatic system in the 4D XCAT phantom: Application to quantitative evaluation of lymphoma PET segmentations by Fedrigo, Roberto, Segars, William P., Martineau, Patrick, Gowdy, Claire, Bloise, Ingrid, Uribe, Carlos F., Rahmim, Arman

“…Background Digital anthropomorphic phantoms, such as the 4D extended cardiac‐torso (XCAT) phantom, are actively used to develop, optimize, and evaluate a…”
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Development of physiologically‐informed computational coronary artery plaques for use in virtual imaging trials by Sauer, Thomas J., Buckler, Andrew J., Abadi, Ehsan, Daubert, Melissa, Douglas, Pamela S., Samei, Ehsan, Segars, William P.

“…Background As a leading cause of death, worldwide, cardiovascular disease is of great clinical importance. Among cardiovascular diseases, coronary artery…”
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A dynamic simulation framework for CT perfusion in stroke assessment built from first principles by Divel, Sarah E., Christensen, Soren, Segars, William P., Lansberg, Maarten G., Pelc, Norbert J.

“…Purpose Physicians utilize cerebral perfusion maps (e.g., cerebral blood flow, cerebral blood volume, transit time) to prescribe the plan of care for stroke…”
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Modeling the effect of patient size on cerebral perfusion during veno-arterial extracorporeal membrane oxygenation by Feiger, Bradley, Jensen, Christopher W, Bryner, Benjamin S, Segars, William P, Randles, Amanda

“…Introduction A well-known complication of veno-arterial extracorporeal membrane oxygenation (VA ECMO) is differential hypoxia, in which poorly-oxygenated blood…”
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iPhantom: A Framework for Automated Creation of Individualized Computational Phantoms and Its Application to CT Organ Dosimetry by Fu, Wanyi, Sharma, Shobhit, Abadi, Ehsan, Iliopoulos, Alexandros-Stavros, Wang, Qi, Lo, Joseph Y., Sun, Xiaobai, Segars, William P., Samei, Ehsan

“…Objective: This study aims to develop and validate a novel framework, i Phantom, for automated creation of patient-specific phantoms or "digital-twins (DT)"…”
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Corrections to "iPhantom: A Framework for Automated Creation of Individualized Computational Phantoms and its Application to CT Organ Dosimetry" [Aug 21 3061-3072] by Fu, Wanyi, Sharma, Shobhit, Abadi, Ehsan, Iliopoulos, Alexandros-Stavros, Wang, Qi, Lo, Joseph Y., Sun, Xiaobai, Segars, William P., Samei, Ehsan

“…In [1], the dose estimation accuracy using the alternative baseline method under modulated tube current was not correctly calculated due to an unintentional…”
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RADAR Realistic Animal Model Series for Dose Assessment by Keenan, Mary A, Stabin, Michael G, Segars, William P, Fernald, Michael J

“…Rodent species are widely used in the testing and approval of new radiopharmaceuticals, necessitating murine phantom models. As more therapy applications are…”
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Modeling "Textured" Bones in Virtual Human Phantoms by Abadi, Ehsan, Segars, William P., Sturgeon, Gregory M., Harrawood, Brian, Kapadia, Anuj, Samei, Ehsan

“…The purpose of this paper was to develop detailed and realistic models of the cortical and trabecular bones in the spine, ribs, and sternum and incorporate…”
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Corrections to “ i Phantom: A Framework for Automated Creation of Individualized Computational Phantoms and its Application to CT Organ Dosimetry” [Aug 21 3061-3072] by Fu, Wanyi, Sharma, Shobhit, Abadi, Ehsan, Iliopoulos, Alexandros-Stavros, Wang, Qi, Lo, Joseph Y., Sun, Xiaobai, Segars, William P., Samei, Ehsan

“…In [1], the dose estimation accuracy using the alternative baseline method under modulated tube current was not correctly calculated due to an unintentional…”
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i Phantom: A Framework for Automated Creation of Individualized Computational Phantoms and Its Application to CT Organ Dosimetry by Fu, Wanyi, Sharma, Shobhit, Abadi, Ehsan, Iliopoulos, Alexandros-Stavros, Wang, Qi, Lo, Joseph Y., Sun, Xiaobai, Segars, William P., Samei, Ehsan

“…Objective: This study aims to develop and validate a novel framework, i Phantom, for automated creation of patient-specific phantoms or “digital-twins (DT)”…”
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Generation of annotated multimodal ground truth datasets for abdominal medical image registration by Bauer, Dominik F., Russ, Tom, Waldkirch, Barbara I., Tönnes, Christian, Segars, William P., Schad, Lothar R., Zöllner, Frank G., Golla, Alena-Kathrin

“…Purpose Sparsity of annotated data is a major limitation in medical image processing tasks such as registration. Registered multimodal image data are essential…”
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Virtual clinical trial for quantifying the effects of beam collimation and pitch on image quality in computed tomography by Abadi, Ehsan, Segars, William P, Harrawood, Brian, Sharma, Shobhit, Kapadia, Anuj, Samei, Ehsan

“…Purpose: To utilize a virtual clinical trial (VCT) construct to investigate the effects of beam collimation and pitch on image quality (IQ) in computed…”
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Development and Application of a Suite of 4-D Virtual Breast Phantoms for Optimization and Evaluation of Breast Imaging Systems by Kiarashi, Nooshin, Lo, Joseph Y., Yuan Lin, Ikejimba, Lynda C., Ghate, Sujata V., Nolte, Loren W., Dobbins, James T., Segars, William P., Samei, Ehsan

“…Mammography is currently the most widely utilized tool for detection and diagnosis of breast cancer. However, in women with dense breast tissue, tissue overlap…”
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