To assess interobserver agreement and validate a visual vascular score of 2-[ 18 F]FDG physiological arterial uptake, in a possible control group for suspected large vessel vasculitis.
Materials & Methods
Retrospective analysis of 2-[18F]FDG PET/CT oncological scans from an occasional sample of patients 50 or more years’ old, without suspicion of inflammatory disease. The parameters evaluated were: age, gender, known risk factors for atherosclerosis (arterial hypertension, dyslipidaemia, diabetes, history of smoking, ischemic heart disease and peripheral arterial disease), blood glucose level and activity administered. To obtain a total vascular score, all PET/CT scans were attributed a visual...
Data from 163 patients were collected and 112 were excluded according the exclusion criteria (table 2). A total of 51 scans from 51 patients were analysed. The most common diagnosis in the sample was lung cancer (n=21; 41%) (table 3). The mean age was 69 [sd=9.4;min=50;max=90] years’ old and 32/51(63%) patients were male. Blood glucose levels prior to the acquisition had a median value of 102[P25:92;P75:116] mg/dL. 2-[18F]FDG administered activity had a mean value of...
1. All patients were classified as having a total vascular visual score ≤5, confirming a relatively homogeneous sample. 2. The majority of the arterial territories were scored as 0/1 and none was scored as 3, and so this sample might be considered as a control group when evaluating the presence of vasculitis. 3. The interobserver agreement was weak and should also be evaluated in a pathological sample. This classification might also need a learning curve and/or could benefit from a...
1 Eur J Nucl Med Mol Imaging.2018;45:1250-1269