Abstract #4330

Quality assessment with a breast phantom and a volunteer for multi-institutional MRI trials including DWI

Mami Iima^1,2, Masako Kataoka¹, Maya Honda¹, Yuta Urushibata³, Ryosuke Okumura⁴, Takashi Koyama⁵, Kenji Uwakubo⁶, Katsutoshi Murata³, Mitsuyo Matsumoto⁷, Yu Ueda⁷, and Kaori Togashi¹

¹Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan, ²Hakubi Center for Advanced Research, Kyoto University, Kyoto, Japan, ³Siemens Healthcare K.K., Tokyo, Japan, ⁴Kitano Hospital, The Tauke Kofukai Medical Research Institute, Osaka, Japan, ⁵Kurashiki Central Hospital, Kurashiki, Japan, ⁶Shiga hospital, Japan Community Health care Organization, Otsu, Japan, ⁷Philips Japan, Tokyo, Japan

The novel method for quality control applicable for commonly used breast MR images (T1WI, T2WI and DWI) in terms of semi-quantitative and quantitative analysis was proposed. The scan was performed across multiple sites on both a breast phantom and a volunteer. The provided scores and apparent spatial resolution were comparable between a phantom and a volunteer. Quality of breast MR images across sites were variable, and standardization using a dedicated breast phantom is considered necessary to assure good diagnostic performance of breast MRI.

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