Fig. 7.

a Endoscopy of the transverse colon shows edema, mucosal erosion and ulceration (Mayo endoscopic score 3); examination performed before administration of infliximab therapy. b Corresponding strain elastography of the transverse colon shows moderate wall thickening, classified 2 BAR (green > blue > red, arrowhead). c Strain elastography of the transverse colon after 4 months of infliximab therapy shows normal colonic wall thickness and elasticity, classified 1B, arrowhead. d Strain elastography of the sigmoid colon after 4 months of infliximab therapy shows normal wall thickness (2.4 mm) and persistent abnormal elastographic appearance [classified 2BA (green > blue, arrowhead]