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Arterial Wall Imaging in Symptomatic Carotid Stenosis: Delayed Enhancement on MDCT Angiography

OBJECTIVE: To evaluate progressive enhancement in the carotid arterial wall overlying plaque in the symptomatic side for patients with cerebrovascular symptoms until delayed phase using MDCTA. MATERIALS AND METHODS: Twenty-one patients (all men; ages, 49-82 years; mean, 67.8 ± 8.4 years) with recent...

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Autores principales: Ha, Su Min, Suh, Sang-il, Seo, Woo-Keun, Seol, Hae Young
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Korean Society of Interventional Neuroradiology 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4781912/
https://www.ncbi.nlm.nih.gov/pubmed/26958408
http://dx.doi.org/10.5469/neuroint.2016.11.1.18
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author Ha, Su Min
Suh, Sang-il
Seo, Woo-Keun
Seol, Hae Young
author_facet Ha, Su Min
Suh, Sang-il
Seo, Woo-Keun
Seol, Hae Young
author_sort Ha, Su Min
collection PubMed
description OBJECTIVE: To evaluate progressive enhancement in the carotid arterial wall overlying plaque in the symptomatic side for patients with cerebrovascular symptoms until delayed phase using MDCTA. MATERIALS AND METHODS: Twenty-one patients (all men; ages, 49-82 years; mean, 67.8 ± 8.4 years) with recent stroke and severe extracranial carotid stenosis were retrospectively analyzed. Pre-, early- and delayed phase images of MDCTA were obtained, and Hounsfield units (HU) of carotid walls were measured. We also measured HU of the asymptomatic contralateral carotid arterial wall for comparison. Friedman's test and Wilcoxon signed-rank test were used to evaluate the differences between groups. RESULTS: The averaged HU of the carotid wall in the symptomatic side was higher on the delayed phase (65.8 ± 14.2 HU) compared to early arterial phase (54.2 ± 12.6 HU). The averaged HU difference of wall enhancement between pre-contrast and delayed phase (28.0 ± 14.8 HU) was significantly higher than the between pre-contrast and early arterial phase (16.4 ± 12.1 HU) with P < 0.05. In analysis of the contralateral asymptomatic side, the HU difference between pre-contrast and delayed phase (15.5 ± 12.0 HU) showed no significant higher value than between pre-contrast and early arterial phase (14.9 ± 10.9 HU). CONCLUSION: The pronounced enhancement of the carotid wall in the delayed phase on MDCTA was demonstrated in symptomatic patients with severe internal carotid artery stenosis. In the future, we need more comparative studies to verify this finding as one of risk stratification.
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spelling pubmed-47819122016-03-08 Arterial Wall Imaging in Symptomatic Carotid Stenosis: Delayed Enhancement on MDCT Angiography Ha, Su Min Suh, Sang-il Seo, Woo-Keun Seol, Hae Young Neurointervention Original Paper OBJECTIVE: To evaluate progressive enhancement in the carotid arterial wall overlying plaque in the symptomatic side for patients with cerebrovascular symptoms until delayed phase using MDCTA. MATERIALS AND METHODS: Twenty-one patients (all men; ages, 49-82 years; mean, 67.8 ± 8.4 years) with recent stroke and severe extracranial carotid stenosis were retrospectively analyzed. Pre-, early- and delayed phase images of MDCTA were obtained, and Hounsfield units (HU) of carotid walls were measured. We also measured HU of the asymptomatic contralateral carotid arterial wall for comparison. Friedman's test and Wilcoxon signed-rank test were used to evaluate the differences between groups. RESULTS: The averaged HU of the carotid wall in the symptomatic side was higher on the delayed phase (65.8 ± 14.2 HU) compared to early arterial phase (54.2 ± 12.6 HU). The averaged HU difference of wall enhancement between pre-contrast and delayed phase (28.0 ± 14.8 HU) was significantly higher than the between pre-contrast and early arterial phase (16.4 ± 12.1 HU) with P < 0.05. In analysis of the contralateral asymptomatic side, the HU difference between pre-contrast and delayed phase (15.5 ± 12.0 HU) showed no significant higher value than between pre-contrast and early arterial phase (14.9 ± 10.9 HU). CONCLUSION: The pronounced enhancement of the carotid wall in the delayed phase on MDCTA was demonstrated in symptomatic patients with severe internal carotid artery stenosis. In the future, we need more comparative studies to verify this finding as one of risk stratification. Korean Society of Interventional Neuroradiology 2016-03 2016-03-03 /pmc/articles/PMC4781912/ /pubmed/26958408 http://dx.doi.org/10.5469/neuroint.2016.11.1.18 Text en Copyright © 2016 Korean Society of Interventional Neuroradiology http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Paper
Ha, Su Min
Suh, Sang-il
Seo, Woo-Keun
Seol, Hae Young
Arterial Wall Imaging in Symptomatic Carotid Stenosis: Delayed Enhancement on MDCT Angiography
title Arterial Wall Imaging in Symptomatic Carotid Stenosis: Delayed Enhancement on MDCT Angiography
title_full Arterial Wall Imaging in Symptomatic Carotid Stenosis: Delayed Enhancement on MDCT Angiography
title_fullStr Arterial Wall Imaging in Symptomatic Carotid Stenosis: Delayed Enhancement on MDCT Angiography
title_full_unstemmed Arterial Wall Imaging in Symptomatic Carotid Stenosis: Delayed Enhancement on MDCT Angiography
title_short Arterial Wall Imaging in Symptomatic Carotid Stenosis: Delayed Enhancement on MDCT Angiography
title_sort arterial wall imaging in symptomatic carotid stenosis: delayed enhancement on mdct angiography
topic Original Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4781912/
https://www.ncbi.nlm.nih.gov/pubmed/26958408
http://dx.doi.org/10.5469/neuroint.2016.11.1.18
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