Výsledky vyhledávání - "Jeffrey D. Chien"

Carotid Atherosclerosis Does Not Predict Coronary, Vertebral, or Aortic Atherosclerosis in Patients With Acute Stroke Symptoms

Autor: Natasha Brasic, Kimberly A. Chun, S.-C. Cheng, Jeffrey D. Chien, Dionesia D. Adraktas, Andre D. Furtado, Karen G. Ordovas, Max Wintermark, Sarah Schaeffer

Publikováno v: Stroke. 41:1604-1609

Background and Purpose— The purpose of this study was to determine whether significant atherosclerotic disease in the carotid arteries predicts significant atherosclerotic disease in the coronary arteries, vertebral arteries, or aorta in patients w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f5dda613d6bf393f6a74df6b8711eaf
https://doi.org/10.1161/strokeaha.109.577437

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Semi-automated computer assessment of the degree of carotid artery stenosis compares favorably to visual evaluation

Autor: Sarah Schaeffer, David Saloner, Peter J. Haar, Max Wintermark, Christine M. Glastonbury, Benison C. Lau, Jeffrey D. Chien, Elizabeth Tong

Publikováno v: Journal of the Neurological Sciences. 269:74-79

Objective To validate a semi-automated computer approach for the assessment of the degree of carotid artery luminal narrowing by comparing it to the visual evaluation by a neuroradiologist. Study design and main outcome measures In a retrospective cr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e52a0842389c36eb627b20fa4af88bea
https://doi.org/10.1016/j.jns.2007.12.023

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Perfusion CT compared to H2 15O/O15O PET in patients with chronic cervical carotid artery occlusion

Autor: Bruce Finley, Wade S. Smith, Amita Kamath, Michael T. Lawton, Tom O. Videen, William J. Powers, Max Wintermark, Jeffrey D. Chien, William P. Dillon, Alessandro Cianfoni

Publikováno v: Neuroradiology. 50:745-751

The purpose of this study was to compare the results of perfusion computed tomography (PCT) with those of 15O2/H2 15O positron emission tomography (PET) in a subset of Carotid Occlusion Surgery Study (COSS) patients. Six patients enrolled in the COSS

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::623758b14c3a07598c9f69b3c7771792
https://doi.org/10.1007/s00234-008-0403-9

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Visual Grading System for Vasospasm Based on Perfusion CT Imaging: Comparisons with Conventional Angiography and Quantitative Perfusion CT

Autor: Nerissa U. Ko, Melissa Yu, William P. Dillon, Max Wintermark, Songling Liu, Saadia R. Chaudhary, Melissa Fitch, Jeffrey D. Chien, Benison C. Lau, Randall T. Higashida, Wade S. Smith

Publikováno v: Cerebrovascular Diseases. 26:163-170

Background: The purpose of this study was to compare simple visual grading of perfusion CT (PCT) maps to a more quantitative, threshold-based interpretation of PCT parameters in the characterization of presence and severity of vasospasm. Methods: Thi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::392fba7d4c574130bd698684cb7acff0
https://doi.org/10.1159/000139664

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Demographics of carotid atherosclerotic plaque features imaged by computed tomography

Autor: Max Wintermark, Jeffrey D. Chien, Kimberly A. Chun, Andre D. Furtado, Sarah Schaeffer, S.-C. Cheng, Jessica Lam

Publikováno v: Journal of neuroradiology = Journal de neuroradiologie. 40(1)

This was a prospective, cross-sectional study to evaluate the risk factors and symptoms associated with specific carotid wall and atherosclerotic plaque features as seen on computed tomography-angiography (CTA) studies.A total of 120 consecutive cons

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c73e350395aa3ab7b38b6c5d8b4bdce9
https://pubmed.ncbi.nlm.nih.gov/23428245

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The triple rule-out for acute ischemic stroke: imaging the brain, carotid arteries, aorta, and heart

Autor: Kimberly A. Chun, Dionesia D. Adraktas, Wade S. Smith, S-C Cheng, Jeffrey D. Chien, Karen G. Ordovas, N. Brasic, Sarah Schaeffer, Andre D. Furtado, Max Wintermark, Matthew R. Lewin

Publikováno v: AJNR Am J Neuroradiol

BACKGROUND AND PURPOSE: Ischemic stroke is commonly embolic, either from carotid atherosclerosis or from cardiac origin. These potential sources of emboli need to be investigated to accurately prescribe secondary stroke prevention. Moreover, the mort

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24d8321530562e1851d9d4981b652805
https://pubmed.ncbi.nlm.nih.gov/20360341

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Optimal carotid artery coverage for carotid plaque CT-imaging in predicting ischemic stroke

Autor: Jeffrey D. Chien, S.-C. Cheng, Kimberly A. Chun, Max Wintermark, Sandeep Arora

Publikováno v: Journal of neuroradiology = Journal de neuroradiologie. 37(2)

Summary Objective To determine the optimal spatial coverage for CT-imaging of carotid atherosclerosis, allowing the most accurate prediction of the associated risk of ischemic stroke. Methods In a cross-sectional study, we retrospectively identified

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f7eb19503792ae3b9ab5791f2363733
https://pubmed.ncbi.nlm.nih.gov/19573923

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MR and CT Monitoring of Recanalization, Reperfusion, and Penumbra Salvage

Autor: Bruno P. Soares, Max Wintermark, Jeffrey D. Chien

Publikováno v: Stroke. 40

Revascularization therapies for acute stroke patients aim to rescue the ischemic penumbra by restoring the patency of the occluded artery (“recanalization”) and the downstream capillary blood flow (“reperfusion”). This article reviews the def

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f16acebd7d3efaa8fb715340a9e0958c
https://doi.org/10.1161/strokeaha.108.526814

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Carotid plaque computed tomography imaging in stroke and nonstroke patients

Autor: Eric Vittinghoff, Max Wintermark, Sandeep Arora, William P. Dillon, Benison C. Lau, Elizabeth Tong, Jeffrey D. Chien, David Saloner

Publikováno v: Annals of neurology. 64(2)

Objective To identify a set of computed tomographic (CT) features of carotid atherosclerotic plaques that is significantly associated with ischemic stroke. Methods In a cross-sectional study, we retrospectively identified 136 consecutive patients adm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98611eab912ae569f703a346750f8dca
https://pubmed.ncbi.nlm.nih.gov/18756475

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Cerebral perfusion CT: technique and clinical applications

Autor: R. Sincic, Max Wintermark, Jeffrey D. Chien, D. Sridhar

Publikováno v: Journal of neuroradiology = Journal de neuroradiologie. 35(5)

Perfusion computed tomography (PCT) is an imaging technique that allows rapid, noninvasive, quantitative evaluation of cerebral perfusion by generating maps of cerebral blood flow (CBF), cerebral blood volume (CBV), and mean transit time (MTT). The c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5163051cd74a56e7a78a877b3c11e68
https://pubmed.ncbi.nlm.nih.gov/18466974

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