Figure 1.

A, B, C. Prevalence of vascular lesions in all patients before and after treatment. The frequencies of wall thickening, wall contrast enhancement, stenosis, occlusion, dilatation, aneurysm, and calcification at any vessel in (A) the entire group, (B) patients with TAK, and (C) patients with GCA are shown. GCA, giant cell arteritis; TAK, Takayasu arteritis. Data are analysed using McNemar’s test. Acute-phase findings include a combination of wall thickening and contrast enhancement of the vascular wall. Chronic-phase findings include a combination of stenosis, occlusion, dilatation, aneurysm, and calcification. The P values are calculated for pre- and post-treatment differences.