Coronary artery plaque imaging: Comparison of black-blood MRI and 64-multidetector computed tomography

Objective: To comparatively evaluate black-blood coronary arterial wall MRI and 64-multidetector computed tomography (64-MDCT) for detection and classification of coronary artery plaques. Methods: We included 15 patients with confirmed coronary artery plaques in the proximal or middle segments of co...

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Autores principales:	Yi He, Qin-Yi Da, Jing An, Xian-Tao Song, De-Biao Li
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2016
Materias:	Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/354fd55192454387a78c4305d9d9cc5a
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spelling	oai:doaj.org-article:354fd55192454387a78c4305d9d9cc5a2021-12-02T11:52:11ZCoronary artery plaque imaging: Comparison of black-blood MRI and 64-multidetector computed tomography2095-882X10.1016/j.cdtm.2016.11.007https://doaj.org/article/354fd55192454387a78c4305d9d9cc5a2016-09-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2095882X16300780https://doaj.org/toc/2095-882XObjective: To comparatively evaluate black-blood coronary arterial wall MRI and 64-multidetector computed tomography (64-MDCT) for detection and classification of coronary artery plaques. Methods: We included 15 patients with confirmed coronary artery plaques in the proximal or middle segments of coronary arteries by 64-MDCT, who underwent black-blood coronary wall MRI at 1.5 T within 10 days. Cross-sectional coronary wall images were acquired using a 2D double-inversion-recovery, electrocardiograph-triggered, navigator-gated, fat-suppressed, turbo-spin-echo sequence on the coronary arteries with lesions from the ostium to the middle segment continuously without gap. The vessel cross-sectional area (CSA), luminal CSA, maximal wall thickness, plaque burden, contrast-to-noise ratio (CNR), and signal-to-noise ratio (SNR) were measured in each slice and subsequently compared with computed tomography angiography (CTA) images. CTA images were divided into 5-mm segments for side-by-side comparison with MRI. Results: Of the 15 patients, 12 were enrolled in the study. Coronary plaques were found in 46 slices on both CTA and MRI. Plaques were classified to 3 groups based on CTA: calcified plaques (n = 11), soft plaques (n = 23), and mixed plaques (n = 12). In MRI, the plaque burden, maximal wall thickness, SNR, and CNR in the coronary walls containing plaques were greater than in the normal coronary walls (0.83 ± 0.08 vs. 0.73 ± 0.08, 1.88 ± 0.51 vs. 1.51 ± 0.26 mm, 12.95 ± 2.78 vs. 9.93 ± 2.31, and 6.76 ± 2.52 vs. 3.89 ± 1.54, respectively; P < 0.05). The luminal CSA at the plaque was smaller than in normal coronary walls (2.50 ± 1.50 vs. 4.72 ± 2.28 mm2; P < 0.05). The SNR in the soft plaque was significantly greater than in calcified and mixed plaques (P < 0.05). Conclusions: Coronary wall MRI can identify coronary plaques in the proximal and middle segments and has the potential to differentiate plaque types based on signal intensity. Keywords: Magnetic resonance imaging, Coronary artery, Wall imaging, Atherosclerosis, PlaquesYi HeQin-Yi DaJing AnXian-Tao SongDe-Biao LiKeAi Communications Co., Ltd.articleMedicine (General)R5-920ENChronic Diseases and Translational Medicine, Vol 2, Iss 3, Pp 159-165 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine (General) R5-920
spellingShingle	Medicine (General) R5-920 Yi He Qin-Yi Da Jing An Xian-Tao Song De-Biao Li Coronary artery plaque imaging: Comparison of black-blood MRI and 64-multidetector computed tomography
description	Objective: To comparatively evaluate black-blood coronary arterial wall MRI and 64-multidetector computed tomography (64-MDCT) for detection and classification of coronary artery plaques. Methods: We included 15 patients with confirmed coronary artery plaques in the proximal or middle segments of coronary arteries by 64-MDCT, who underwent black-blood coronary wall MRI at 1.5 T within 10 days. Cross-sectional coronary wall images were acquired using a 2D double-inversion-recovery, electrocardiograph-triggered, navigator-gated, fat-suppressed, turbo-spin-echo sequence on the coronary arteries with lesions from the ostium to the middle segment continuously without gap. The vessel cross-sectional area (CSA), luminal CSA, maximal wall thickness, plaque burden, contrast-to-noise ratio (CNR), and signal-to-noise ratio (SNR) were measured in each slice and subsequently compared with computed tomography angiography (CTA) images. CTA images were divided into 5-mm segments for side-by-side comparison with MRI. Results: Of the 15 patients, 12 were enrolled in the study. Coronary plaques were found in 46 slices on both CTA and MRI. Plaques were classified to 3 groups based on CTA: calcified plaques (n = 11), soft plaques (n = 23), and mixed plaques (n = 12). In MRI, the plaque burden, maximal wall thickness, SNR, and CNR in the coronary walls containing plaques were greater than in the normal coronary walls (0.83 ± 0.08 vs. 0.73 ± 0.08, 1.88 ± 0.51 vs. 1.51 ± 0.26 mm, 12.95 ± 2.78 vs. 9.93 ± 2.31, and 6.76 ± 2.52 vs. 3.89 ± 1.54, respectively; P < 0.05). The luminal CSA at the plaque was smaller than in normal coronary walls (2.50 ± 1.50 vs. 4.72 ± 2.28 mm2; P < 0.05). The SNR in the soft plaque was significantly greater than in calcified and mixed plaques (P < 0.05). Conclusions: Coronary wall MRI can identify coronary plaques in the proximal and middle segments and has the potential to differentiate plaque types based on signal intensity. Keywords: Magnetic resonance imaging, Coronary artery, Wall imaging, Atherosclerosis, Plaques
format	article
author	Yi He Qin-Yi Da Jing An Xian-Tao Song De-Biao Li
author_facet	Yi He Qin-Yi Da Jing An Xian-Tao Song De-Biao Li
author_sort	Yi He
title	Coronary artery plaque imaging: Comparison of black-blood MRI and 64-multidetector computed tomography
title_short	Coronary artery plaque imaging: Comparison of black-blood MRI and 64-multidetector computed tomography
title_full	Coronary artery plaque imaging: Comparison of black-blood MRI and 64-multidetector computed tomography
title_fullStr	Coronary artery plaque imaging: Comparison of black-blood MRI and 64-multidetector computed tomography
title_full_unstemmed	Coronary artery plaque imaging: Comparison of black-blood MRI and 64-multidetector computed tomography
title_sort	coronary artery plaque imaging: comparison of black-blood mri and 64-multidetector computed tomography
publisher	KeAi Communications Co., Ltd.
publishDate	2016
url	https://doaj.org/article/354fd55192454387a78c4305d9d9cc5a
work_keys_str_mv	AT yihe coronaryarteryplaqueimagingcomparisonofblackbloodmriand64multidetectorcomputedtomography AT qinyida coronaryarteryplaqueimagingcomparisonofblackbloodmriand64multidetectorcomputedtomography AT jingan coronaryarteryplaqueimagingcomparisonofblackbloodmriand64multidetectorcomputedtomography AT xiantaosong coronaryarteryplaqueimagingcomparisonofblackbloodmriand64multidetectorcomputedtomography AT debiaoli coronaryarteryplaqueimagingcomparisonofblackbloodmriand64multidetectorcomputedtomography
_version_	1718395096222662656

Coronary artery plaque imaging: Comparison of black-blood MRI and 64-multidetector computed tomography

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