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Abstract #3969

Partial Vibration MR Elastography: Zero-MR phase image MRE

Tomokazu Numano1,2, Daiki Ito1,2,3, Kazuyuki Mizuhara4, Toshikatsu Washio2, Tetsushi Habe1, Keisuke Igarashi1, Takamichi Ueki1, Toshiki Maeno1, Masaki Misawa2, and Naotaka Nitta2

1Radiological Sciences, Tokyo Metropolitan University, Tokyo, Japan, 2National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, Japan, 3Office of Radiation Technology, Keio University Hospital, Tokyo, Japan, 4Tokyo Denki University, Tokyo, Japan

We developed a new technique for MR elastography (MRE) without using MR phase images (Zero-MR phase image MRE). A general MRE uses MR phase images as a wave image. Proposed technique was used MR magnitude images instead of MR phase images as a wave image by using the partial vibration. Proposed technique (partial vibration MRE technique) performance was comparable to that of a continuous vibration (conventional) MRE. Since partial vibration MRE need an only few second vibration, it could dramatically eliminated the patients' vibration-related discomfort.

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