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Abstract #4330

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

Mami Iima1,2, 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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