Fig. 2From: The utility of measuring the apparent diffusion coefficient for peritumoral zone in assessing infiltration depth of endometrial cancerEndometrial adenocarcinoma with superficial myometrial invasion in a 43-year-old woman. An elliptical region of interest (ROI) was placed on peritumoral zone (ROI1 with green color), which was assessed subjectively on a cross-section of the T2-weighted image obtained by echo planar imaging (b = 0 s/mm2). In addition, a freehand ROI (ROI2 with pink color) was placed on the tumor which contained the largest endometrial cancerous area, avoiding artifacts from the neoplastic/non- neoplastic interface and visible lesions or vascular structures in the myometrium. a T2-weighted image; b diffusion-weighted magnetic resonance image (b = 0 s/ mm2); c diffusion-weighted magnetic resonance image (b = 1000 s/mm2); d apparent diffusion coefficient mapBack to article page