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Abstract #4729

Diffusion-weighted MRI evaluation of kidney tumor: Comparison of small field-of-view and conventional EPI techniques

Junjiao Hu1, Huiting Zhang2, Hu Guo3, Thomas Benkert4, Shan Jiang1, Weijun Situ1, and Jun Liu1
1Department of Radiology,The Second Xiangya Hospital, Central South University, Changsha, China, 2MR Scientific Marketing, Siemens Healthineers, Wuhan, China, 3MR Application, Siemens Healthineers, Changsha, China, 4MR Application Predevelopment, Siemens Healthcare GmbH, Erlangen, Germany

Synopsis

Image quality and apparent diffusion coefficient (ADC) values of conventional single-shot spin-echo echo-planar imaging (SS-EPI) and prototype small field-of-view EPI (Zoomit_EPI) diffusion-weighted imaging in kidney tumor were compared. Results showed that Zoomit_EPI had better image quality, including fewer distortion artifacts and blurring (p < 0.01), and clearer edges of the lesions. ADC value of Zoomit_EPI had a good correlation with those of SS-EPI (R2 = 0.91), but Zoomit_EPI had significantly larger ADC than SS_EPI with 80.4*10-6 mm2/s.

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