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Three‐dimensional cine imaging using variable‐density spiral trajectories and SSFP with application to coronary artery angiography
Author(s) -
Kressler Bryan,
Spincemaille Pascal,
Nguyen Thanh D.,
Cheng Liuquan,
Xi Hai Zhao,
Prince Martin R.,
Wang Yi
Publication year - 2007
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.21365
Subject(s) - steady state free precession imaging , spiral (railway) , visualization , temporal resolution , coronary arteries , precession , artery , angiography , radiology , magnetic resonance imaging , medicine , physics , computer science , artificial intelligence , mathematics , optics , cardiology , mathematical analysis , astronomy
A single breath‐hold 3D cardiac phase resolved steady‐state free precession (SSFP) sequence was developed, allowing 3D visualization of the moving coronary arteries. A 3D stack of spirals was acquired continuously throughout the cardiac cycle, and a sliding window reconstruction was used to achieve high temporal resolution. A coil specific field of view reconstruction technique was combined with Parallel Imaging with Localized Sensitivities (PILS) to allow acquisition of a reduced field of view. A view ordering incorporating fat suppression was employed to allow use of sliding window reconstruction. The technique was evaluated on healthy volunteers ( n = 8), yielding images with 102 ms temporal resolution and 1.35 mm in‐plane resolution, and reasonable visualization of the left and right coronary arteries was achieved. Magn Reson Med 58:535–543, 2007. © 2007 Wiley‐Liss, Inc.