Figure 2
From: Effects of Echo Time on IVIM Quantification of the Normal Prostate

ROI drawing method. (a) Axial T2WI, (b) Axial DWI with TE = 60 ms and a b value of 0 s/mm2. The ROI was drawn within the outer border of the central zone (yellow solid line) and peripheral zone (red solid line). Then, the ROI was automatically copied to each parameter map. The oval ROI was drawn on the bilateral obturator muscle and automatically copied to an image with a b value of 1000 mm2/s (c) to measure the signal-to-noise ratio. (d–g) Parameter maps of D, D*, f and ADC, respectively, calculated by DWI with TE = 60 ms.