Fig. 2
a. The fistula tracks visible on the preoperative DCE images, SIlesion, SItissue, and SDbackground are measured. b. In preoperative DWI in the axial plane (b = 1200), the fistula tracks have a high signal intensity. c. A ROI is manually positioned on the diffusion MR image and copied on the ADC map. d. The same level to measure the SIlesion, SItissue, and SDbackground on postoperative DCE images. e. Postoperative DWI (same level) in the axial plane (b = 1200), showing healed fistula tracks. f. A ROI is manually positioned on the diffusion MR image and copied on the ADC map. DWI, diffusion-weighted images; ROI, region of interest; MR, magnetic resonance; ADC, apparent diffusion coefficient; DCE, dynamic contrast-enhanced; SI, signal intensity