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Non‐contrast‐enhanced MR angiography using 3D ECG‐synchronized half‐Fourier fast spin echo
Author(s) -
Miyazaki Mitsue,
Sugiura Satoshi,
Tateishi Fumiaki,
Wada Hirofumi,
Kassai Yoshimori,
Abe Hirohiko
Publication year - 2000
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/1522-2586(200011)12:5<776::aid-jmri17>3.0.co;2-x
Subject(s) - contrast (vision) , fast spin echo , subtraction , magnetic resonance angiography , angiography , magnetic resonance imaging , medicine , nuclear medicine , radiology , computer science , artificial intelligence , mathematics , arithmetic
A non‐contrast‐enhanced three‐dimensional (3D) magnetic resonance angiography (MRA) technique, which acquires images in a reasonably short scanning time and requires no contrast agent, is developed. An electrocardiographically (ECG) synchronized 3D half‐Fourier fast spin‐echo (FSE) technique with an appropriate ECG delay time for every slice encoding in 3D terms was used to examine the thoracic and iliac regions in 16 healthy volunteers at both 0.5 and 1.5 T. Prior to each 3D fresh blood imaging (FBI) experiment, an ECG preparation (ECG‐prep) scan was acquired, and an appropriate ECG triggering time was selected for 3D FBI acquisition to optimize visualization of the vessel of interest. In the thoracic and abdominal regions, good‐quality 3D MRA images were obtained. Furthermore, the weighted subtraction of two images in different phases provides contrast enhancement between arteries and veins. J. Magn. Reson. Imaging 2000;12:776–783. © 2000 Wiley‐Liss, Inc.