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Abstract #4335

Comparison of iShim, RESOLVE, and ss-EPI diffusion-weighted MR imaging with high b value at 3T MR in the evaluation of uterine malignancy

Qi Zhang1, Jieying Zhang1, Xiaoduo Yu1, Han Ouyang1, Xinming Zhao1, Hongmei Zhang1, Qinglei Shi2, Xiang Feng2, and Xiaoye Wang2
1Department of Imaging Diagnosis, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China, 2MR Scientific Marketing, Diagnostic Imaging, Siemens Healthcare Ltd, Beijing, China

In the evaluation of uterine malignancy, conventional DWI based on single-shot echo-planar imaging (ss-EPI) is prone to imaging artifacts, including susceptibility artifacts from gas, imaging blurring, which limit its diagnostic value, especially in detecting and staging uterine malignancy. The purpose of this study is to compare the detection of uterine malignancy and image quality among DWI based on integrated slice-specific dynamic shimming (iShim), readout segmentation of long variable echo trains (RESOLVE) and ss-EPI sequence. Our results indicated that iShim DWI showed better image quality than ss-EPI and RESOLVE DWI in the terms of subjective image scores and objective quantitative metrics.

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