Arterial Wall Imaging in Symptomatic Carotid Stenosis: Delayed Enhancement on MDCT Angiography
ObjectiveTo 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 MethodsTwenty-one patients (all men; ages, 49-82 years; mean, 67.8 ± 8.4 years) with recent stro...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Korean Society of Interventional Neuroradiology
2016-03-01
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| Series: | Neurointervention |
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| Online Access: | http://neurointervention.org/upload/pdf/ni-11-18.pdf |
| _version_ | 1827363916843319296 |
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| author | Su Min Ha Sang-il Suh Woo-Keun Seo Hae Young Seol |
| author_facet | Su Min Ha Sang-il Suh Woo-Keun Seo Hae Young Seol |
| author_sort | Su Min Ha |
| collection | DOAJ |
| description | ObjectiveTo 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 MethodsTwenty-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.ResultsThe 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).ConclusionThe 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. |
| first_indexed | 2024-03-08T07:58:09Z |
| format | Article |
| id | doaj.art-def0a62128f2408ab2f25dfad6759db2 |
| institution | Directory Open Access Journal |
| issn | 2093-9043 2233-6273 |
| language | English |
| last_indexed | 2024-03-08T07:58:09Z |
| publishDate | 2016-03-01 |
| publisher | Korean Society of Interventional Neuroradiology |
| record_format | Article |
| series | Neurointervention |
| spelling | doaj.art-def0a62128f2408ab2f25dfad6759db22024-02-02T13:14:32ZengKorean Society of Interventional NeuroradiologyNeurointervention2093-90432233-62732016-03-01111182310.5469/neuroint.2016.11.1.18112Arterial Wall Imaging in Symptomatic Carotid Stenosis: Delayed Enhancement on MDCT AngiographySu Min Ha0Sang-il Suh1Woo-Keun Seo2Hae Young Seol3Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.Department of Neurology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.ObjectiveTo 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 MethodsTwenty-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.ResultsThe 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).ConclusionThe 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.http://neurointervention.org/upload/pdf/ni-11-18.pdfcarotid plaquedelayed phasecomputed tomography angiographystability |
| spellingShingle | Su Min Ha Sang-il Suh Woo-Keun Seo Hae Young Seol Arterial Wall Imaging in Symptomatic Carotid Stenosis: Delayed Enhancement on MDCT Angiography Neurointervention carotid plaque delayed phase computed tomography angiography stability |
| 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 | carotid plaque delayed phase computed tomography angiography stability |
| url | http://neurointervention.org/upload/pdf/ni-11-18.pdf |
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