Review Article

Giant Cell Arteritis: A Systematic Review of the Qualitative and Semiquantitative Methods to Assess Vasculitis with 18F-Fluorodeoxyglucose Positron Emission Tomography

Table 2

18F-FDG PET and PET/CT qualitative diagnostic criteria.

Number of studies Description

2Positive/negative or normal/abnormal

3Visual grading scale
0: none; 1: slight; 2: marked; 3: intense

5Visual grading scale
0: no uptake; 1: lower than liver; 2: similar to liver; 3: more than liver