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距離1943鐵蟲 (初入文壇)
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[求助]
求助查論文檢索 已有1人參與
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哪位能幫忙查下這篇文章是否istp檢索 optimization of 3d time of flight mr angiography with shortened echo time and dual echo acquisition [ 發(fā)自手機(jī)版 http://www.gaoyang168.com/3g ] |
木蟲 (正式寫手)
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在IEEE上檢索了,但貌似ISTP還沒有檢索 Optimization of 3D time-of-flight MR angiography with shortened echo time and dual-echo acquisition Full Text as PDF 2 Author(s) Wenxing Fang ; Center for Brain Imaging Sci. & Technol., Zhejiang Univ., Hangzhou, China ; Du, Y.P. Abstract Authors References Cited By Keywords Metrics Similar Download Citation Request Permissions 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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