Abstract #3311

Dynamic MR elastography using MR magnitude images

Tomokazu Numano^1,2, Daiki Ito^2,3,4, Kazuyuki Mizuhara⁵, Toshikatsu Washio², Tetsushi Habe^3,4, 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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