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距离1943

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[求助] 求助查论文检索已有1人参与

哪位能帮忙查下这篇文章是否istp检索 optimization of 3d time of flight mr angiography with shortened echo time and dual echo acquisition

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1楼 2014-03-14 23:33:02

已阅回复此楼关注TA 给TA发消息送TA红花 TA的回帖

xavier04

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距离1943: 金币+10, ★有帮助 2014-03-15 18:32:07

在IEEE上检索了，但貌似ISTP还没有检索
Optimization of 3D time-of-flight MR angiography with shortened echo time and dual-echo acquisition

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2 Author(s)

Wenxing Fang ; Center for Brain Imaging Sci. & Technol., Zhejiang Univ., Hangzhou, China ; Du, Y.P.

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A dual-echo three-dimensional (3D) time-of-flight (TOF) magnetic resonance angiography (MRA) pulse sequence is developed. To improve the visualization of artery, optimal echo time (TE) is achieved using minimal gradient durations, asymmetric radio-frequency (RF) excitation pulses, and partial echo acquisition. The effect of shortened TE on artery-to-background contrast is demonstrated. Vessel visualization is substantially improved in TOF with short TE of 5.7ms comparing to that with a long TE of 18.3ms. Using a dual-echo acquisition approach, the scan time can be reduced by 50%, with a slight penalty in vessel visibility. When the same scan time is used, the dual-echo acquisition is demonstrated to improve the signal-to-noise-ratio (SNR) or the spatial resolution of MRA.

Published in:
Biomedical Engineering and Informatics (BMEI), 2013 6th International Conference on
Date of Conference:
16-18 Dec. 2013
Page(s): 53 - 58 Print ISBN: 978-1-4799-2760-9 INSPEC Accession Number: 14117738

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