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Abstract #4327

Comparison of the image quality and ADC values on diffusion weighted imaging at both low and high b-values with gadoxetic acid-enhanced MR imaging

Shang Wan1, Yi Wei1, Hehan Tang1, Lisha Nie2, Xiaocheng Wei2, and Bin Song3
1Radiology, West China Hospital, Sichuan University, Cheng Du, China, 2GE Healthcare Beijing China, Beijing, China, 3West China Hospital, Sichuan University, Cheng Du, China


Gd-EOB-DTPA has been widely used in liver MR imaging for the evaluation of hepatic lesion, whereas, the long intervals between the dynamic enhanced imaging and hepatobiliary phase imaging usually influence patient throughput. Notably, the adjustment of diffusion weighted imaging (DWI) sequence’s scanning order from pre-contrast to post-contrast is crucial to overcome this limitation. However, few studies have investigated the apparent diffusion coefficient (ADC) values that at low and high b values should be affected, respectively, thus, we aimed to prospectively determine whether DWI at both low and high b-values should be affected before and after gadoxetic acid-enhanced MR imaging.

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