Fig. 4From: Validation of PET/MRI attenuation correction methodology in the study of brain tumours Bland Altman for SURmetal/mirror analysis. Mean bias for maxSURmetal/mirror (a) and meanSURmetal/mirror (b) in postoperative patients presenting with metal implants. ZTE–AC and atlas-AC compared to reference standard CT-AC. Bars and whiskers are mean ± SDBack to article page