Search Results - "Yim, Peter J."

Estimation of bolus dispersion effects in perfusion MRI using image-based computational fluid dynamics by Calamante, Fernando, Yim, Peter J., Cebral, Juan R.

“…Bolus tracking magnetic resonance imaging (MRI) is a powerful technique for measuring perfusion, and is playing an increasing role in the investigation of…”
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Estimation of the differential pressure at renal artery stenoses by Yim, Peter J., Cebral, Juan R., Weaver, Ashley, Lutz, Robert J., Soto, Orlando, Vasbinder, G. Boudewijn C., Ho, Vincent B., Choyke, Peter L.

“…Atherosclerotic disease of the renal artery can lead to reduction in arterial caliber and ultimately to conditions including renovascular hypertension. Renal…”
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Subtraction Computed Tomographic Angiography of Calcified Arteries by Yim, Peter J., PhD, Nosher, John L., MD, Burgos, Anthony, MD, Haddadin, Ihab, MD

“…Rationale and Objectives The technique of subtraction computed tomographic angiography (sCTA) has been proposed for the evaluation of atherosclerotic disease…”
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The Paradoxical Flow Hypothesis of the Carotid Artery: Supporting Evidence from Phase-contrast Magnetic Resonance Imaging by Yim, Peter J., PhD, Tilara, Amish, BA, Nosher, John L., MD

“…Objective Narrowing of the poststenotic internal carotid artery (ICA) has been found to be associated with reduced risk of ipsilateral stroke. A paradoxical…”
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Blood flow modeling in carotid arteries with computational fluid dynamics and MR imaging by Cebral, Juan R, Yim, Peter J, Löhner, Rainald, Soto, Orlando, Choyke, Peter L

“…The authors' goal was to develop a noninvasive method for detailed assessment of blood flow patterns from direct in vivo measurements of vessel anatomy and…”
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Vessel surface reconstruction with a tubular deformable model by Yim, P.J., Cebral, J.J., Mullick, R., Marcos, H.B., Choyke, P.L.

“…Three-dimensional (3-D) angiographic methods are gaining acceptance for evaluation of atherosclerotic disease. However, measurement of vessel stenosis from 3-D…”
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Gray-scale skeletonization of small vessels in magnetic resonance angiography by Yim, P.J., Choyke, P.L., Summers, R.M.

“…Interpretation of magnetic resonance angiography (MRA) is problematic due to complexities of vascular shape and to artifacts such as the partial volume effect…”
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Subtraction computed tomographic angiography of calcified arteries: preliminary phantom and clinical studies by Yim, Peter J, Nosher, John L, Burgos, Anthony, Haddadin, Ihab

“…The technique of subtraction computed tomographic angiography (sCTA) has been proposed for the evaluation of atherosclerotic disease to address limitations in…”
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Isosurfaces as deformable models for magnetic resonance angiography by Yim, P.J., Vasbinder, G.B.C., Ho, V.B., Choyke, P.L.

“…Vascular disease produces changes in lumenal shape evident in magnetic resonance angiography (MRA). However, quantification of vascular shape from MRA is…”
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Volumetric analysis of liver metastases in computed tomography with the fuzzy C-means algorithm by Yim, Peter J, Vora, Amit V, Raghavan, Deepak, Prasad, Ravi, McAullife, Matthew, Ohman-Strickland, Pamela, Nosher, John L

“…Tumor size is often determined from computed tomography (CT) images to assess disease progression. A study was conducted to demonstrate the advantages of the…”
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3D segmentation of the liver using free-form deformation based on boosting and deformation gradients by Hong Zhang, Lin Yang, Foran, D.J., Nosher, J.L., Yim, P.J.

“…This paper presents a novel automatic 3D hybrid segmentation approach based on free-form deformation. The algorithms incorporate boosting and deformation…”
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Plaque Morphology in High Versus Low Shear Stress Regions of Human Carotid Stenosis by Fyfe‐Kirschner, Billie Shawn, Yim, Peter J., Cebral, Juan R, Foran, David J

“…Background: A role for high shear stress in plaque destabilization has been postulated. We investigate this potential effect by correlating carotid plaque…”
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Merging of intersecting triangulations for finite element modeling by Cebral, Juan R., Löhner, Rainald, Choyke, Peter L., Yim, Peter J.

“…Surface mesh generation over intersecting triangulations is a problem common to many branches of biomechanics. A new strategy for merging intersecting…”
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Vesselize: a system for analysis and visualization of magnetic resonance angiography by Yim, P J, Mullick, R, Choyke, P L

“…A system that enables high quality 3D visualization of magnetic resonance angiography (MRA) necessary for surgical planning is presented. The system includes…”
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Automated detection of blood vessels using dynamic programming by Yim, Peter J., Kayton, Mark, Miller, Walter, Libutti, Steven, Choyke, Peter L.

“…An essential step in the characterization of angiography is the detection of the blood vessels. We propose an algorithm for detection of vessels in…”
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Volumetry of hepatic metastases in computed tomography using the watershed and active contour algorithms by Yim, P.J., Foran, D.J.

“…The liver is a common site of metastatic disease. Colorectal liver metastases (CLM) alone is diagnosed in approximately 50,000 patients each year in the United…”
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Registration of time-series contrast enhanced magnetic resonance images for renography by Yim, P.J., Marcos, H.B., McAuliffe, M., McGarry, D., Heaton, I., Choyke, P.L.

“…Renovascular disease is an important cause of hypertension. For assessing treatment options for renovascular disease, such as angioplasty or nephrectomy, it is…”
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Hemodynamic significance of renal artery stenoses from magnetic resonance imaging by Yim, P.J., Cebral, J.R., Vasbinder, B., Ho, V.B., van Engelshoven, J.M.A., Choyke, P.L.

“…Hemodynamically significant stenoses of the proximal renal artery reduce blood flow to the kidneys and cause result in isochemic nephropathy and hypertension…”
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Diastolic shape of the right ventricle of the heart by Yim, Peter J., Ha, Belinda, Ferreiro, Jose I., Henry, G. William, Branch, Craig A., Johnson, Timothy A., Lucas, Carol L.

“…Background Knowledge of right ventricular (RV) shape is important to the understanding of RV mechanical function and for the improvement of clinically…”
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