Fig. 1
From: Clinical characteristics and role of whole-body bone scan in multifocal osteonecrosis
a Osteonecrosis (ON) sites confirmed by whole body bone scan (WBBS) and magnetic resonance imaging (MRI) or X-ray in 254 patients with ON. b ON sites confirmed by WBBS and MRI or X-ray in 26 patients with multiple ON. Local MRI was obtained for 419 sites and X-ray images of 415 sites were obtained in the 254 patients with ON. Overall, WBBS images of 477 sites were compared with local MR or X-ray images