Abstract #3969

Partial Vibration MR Elastography: Zero-MR phase image MRE

Tomokazu Numano^1,2, Daiki Ito^1,2,3, 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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