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Abstract #0545

REACT-QUANT: simultaneous non-contrast-enhanced subclavian MRA and vessel-wall imaging with multi-parametric quantitative mapping

Masami Yoneyama1, Yasuhiro Goto2, Michinobu Nagao3, Shuo Zhang4, Kayoko Abe3, Yutaka Hamatani2, Kazuo Kodaira2, Takumi Ogawa2, Mana Kato2, Isao Shiina2, Christian Stehning4, and Marc Van Cauteren5
1Philips Japan, Tokyo, Japan, 2Department of Radiological Services, Tokyo Women's Medical University, Tokyo, Japan, 3Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women’s Medical University, Tokyo, Japan, 4Philips Healthcare, Hamburg, Germany, 5Philips Healthcare, Best, Netherlands

Synopsis

Keywords: Atherosclerosis, AtherosclerosisClinical imaging procedure for vascular evaluation and tissue characterization often needs separate MR scans. Both scenarios require multiple imaging sequences with different image contrasts, which results in long exam times and image misalignment due to possible motion between the scans that needs to be corrected in post-processing. In this work, the recently proposed REACT (Relaxation-Enhanced Angiography without ContrasT) technique was further developed and combined with multi-echo data acquisitions and Dixon-based chemical-shift-based water-fat separation. Initial results in patients showed great promise in detection and assessment of vascular and vessel wall lesions in one single scan.

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