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Abstract #3311

Dynamic MR elastography using MR magnitude images

Tomokazu Numano1,2, Daiki Ito2,3,4, Kazuyuki Mizuhara5, Toshikatsu Washio2, Tetsushi Habe3,4, Toshiki Maeno3, Masaki Misawa2, and Naotaka Nitta2
1Radiological Sciences, Tokyo Metropolitan University, Tokyo, Japan, 2National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan, 3Tokyo Metropolitan University, Tokyo, Japan, 4Keio University Hospital, Tokyo, Japan, 5Tokyo Denki University, Tokyo, Japan

We developed a new technique for dynamic MR elastography (MRE) using a MR magnitude image. A general MRE uses a MR phase image as a wave image. Proposed technique was used a MR magnitude image instead of MR phase image as a wave image by using a special vibration. Proposed technique (special vibration MRE) performance was comparable to that of a continuous vibration MRE. Since special vibration MRE need an only few second vibration, it could dramatically eliminated the patients' vibration-related discomfort.

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