Abstract #1866

Estimated quantitative relaxation mapping calculated from Multiple-Repetition Multiple-Echo (MRME) based DWI acquisition in prostate

Yu Ueda¹, Tsutomu Tamada², Ayumu Kido², Kazunori Moriya², Shigeru Shibata², Mitsuru Takeuchi³, Akira Yamamoto², Makoto Obara¹, and Marc Van Cauteren⁴

¹Philips Japan, Ltd., Tokyo, Japan, ²Department of Radiology, Kawasaki Medical School, Kurashiki, Japan, ³Department of Diagnostic Radiology, Radiolonet Tokai, Nagoya, Japan, ⁴Philips Healthcare, Business Unit MR, Tokyo, Japan

Synopsis

Keywords: Prostate, Quantitative ImagingIt has been reported that synthetised DW images with short TR and zero TE, generated from quantitative relaxation parameters, improved lesion contrast in prostate. In this study, we investigate the added value of the estimated T1 and T2 values in differentiating benign from malignant lesion in suspicious cancers with PI-RADS category 3, potentially reducing unnecessary biopsies. In addition to the conventional DW images at b-values of 1000 and 2000, ADC map, and estimated T1 and T2 maps, synthetised DW images can be acquired in approximately 4 minutes, an acceptable scan time in clinical practice.

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