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Abstract #2998

Noncontrast Enhanced MRA with Compressed Sensing and Parallel Imaging for Evaluation of Branches of the Aortic Arch

Takayuki Masui1, Motoyuki Katayama1, Koji Yoneyama1, Masayoshi Sugimura1, Naoyuki Takei2, Kimihiko Sato1, Kei Tsukamoto1, Kenichi Mizuki1, Hiroyuki Kabasawa2

1Radiology, Seirei Hamamatsu General Hospital, Hamamatsu, Shizuoka, Japan; 2GE Healthcare Japan, Hino, Tokyo, Japan

Noncontrast enhanced (NC)-MRA with inflow inversion recovery technique, IFIR FSE can be obtained for the evaluation of the arteries from the aortic arch to the skull base using peripheral pulse gating at 3T in combined use of compressed sensing and parallel imaging ARC. This technique may be used as a screening method covering the wide areas of the arteries within an acceptable short imaging time and image quality in the patients with cerebral vascular diseases. In those cases, robust imaging parameters have to be applied for stable NC-MRAs.

Keywords

acceleration acceptable angiography aortic apparent applied applying approved approximately arch around array arrhythmia arteries artifacts audience bifurcation board branches carotid cephalic cerebral clinical coil combination combined common compressed consent contrast coronal covering decreased degraded degrees dependent detect discovery diseases distal efficient enhanced equivalent essential evaluate evaluated evaluation examined excellent expected external facilitate fast feasibility fixed fixing flight gated general half head heart hospital improvement inferior inflow informed institutional intensity internal inversion involved japan king light loss magnet materials matrix medium middle might neck optimization optimized origins overall overlap parallel patient patients peripheral physicians pilot preliminary preserved proximal pulse quality radiology ranked recovery reduction review robust sampling scale scientists screening sensing several short skull slice solely sophisticated space stable studies subjects suspicion target technologists tended tentatively thick vascular version vertebral view visualization visualizations volunteers whereas women years