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学科主题: 临床医学
题名:
Turbo Fast Three-Dimensional Carotid Artery Black-Blood MRI by Combining Three-Dimensional MERGE Sequence with Compressed Sensing
作者: Li, Bo1; Dong, Li2; Chen, Bin3; Ji, Shuangxi1; Cai, Wenchao4; Wang, Ye3; Zhang, Jue1,3; Zhang, Zhaoqi2; Wang, Xiaoying3,4; Fang, Jing1,3
关键词: compressed sensing ; 3D-MERGE ; vessel wall imaging ; random sampling ; pseudo-centric phase encoding order ; CS-3D MERGE
刊名: MAGNETIC RESONANCE IN MEDICINE
发表日期: 2013-11-01
DOI: 10.1002/mrm.24579
卷: 70, 期:5, 页:1347-1352
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Radiology, Nuclear Medicine & Medical Imaging
研究领域[WOS]: Radiology, Nuclear Medicine & Medical Imaging
关键词[WOS]: ARTIFACTS ; RECONSTRUCTION ; PLAQUE ; MOTION
英文摘要:

PurposeIn this study, we sought to investigate the feasibility of turbo fast three-dimensional (3D) black-blood imaging by combining a 3D motion-sensitizing driven equilibrium rapid gradient echo sequence with compressed sensing.

MethodsA pseudo-centric phase encoding order was developed for compressed sensing-3D motion-sensitizing driven equilibrium rapid gradient echo to suppress flow signal in undersampled 3D k-space. Nine healthy volunteers were recruited for this study. Signal-to-tissue ratio, contrast-to-tissue ratio (CTR) and CTR efficiency (CTReff) between fully sampled and undersampled images were calculated and compared in seven subjects. Moreover, isotropic high resolution images using different compressed sensing acceleration factors were evaluated in two other subjects.

ResultsWall-lumen signal-to-tissue ratio or CTR were comparable between the undersampled and the fully sampled images, while significant improvement of CTReff was achieved in the undersampled images. At an isotropic high spatial resolution of 0.7 x 0.7 x 0.7 mm(3), all undersampled images exhibited similar level of the flow suppression efficiency and the capability of delineating outer vessel wall boundary and lumen-wall interface, when compared with the fully sampled images.

ConclusionThe proposed turbo fast compressed sensing 3D black-blood imaging technique improves scan efficiency without sacrificing flow suppression efficiency and vessel wall image quality. It could be a valuable tool for rapid 3D vessel wall imaging. Magn Reson Med 70:1347-1352, 2013. (c) 2012 Wiley Periodicals, Inc.

语种: 英语
项目资助者: Fundamental Research Funds for the Central Universities
WOS记录号: WOS:000326115000017
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/64882
Appears in Collections:北京大学第一临床医学院_放射治疗科_期刊论文

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作者单位: 1.Peking Univ, Coll Engn, Beijing 100871, Peoples R China
2.Capital Med Univ, Beijing Anzhen Hosp, Dept Radiol, Beijing, Peoples R China
3.Peking Univ, Acad Adv Interdisciplinary Studies, Beijing 100871, Peoples R China
4.Peking Univ, Hosp 1, Dept Radiol, Beijing 100871, Peoples R China

Recommended Citation:
Li, Bo,Dong, Li,Chen, Bin,et al. Turbo Fast Three-Dimensional Carotid Artery Black-Blood MRI by Combining Three-Dimensional MERGE Sequence with Compressed Sensing[J]. MAGNETIC RESONANCE IN MEDICINE,2013,70(5):1347-1352.
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