RT Journal Article SR Electronic T1 Diagnosis and follow up of aortitis in the elderly JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 1507 OP 1510 DO 10.1136/ard.2003.015651 VO 63 IS 11 A1 A K Scheel A1 J Meller A1 R Vosshenrich A1 E Kohlhoff A1 U Siefker A1 G A Müller A1 F Strutz YR 2004 UL http://ard.bmj.com/content/63/11/1507.abstract AB Objectives: To evaluate the correlation of MRI and [18F]FDG-PET scans with the clinical course and inflammatory markers in patients with aortitis. Methods: Eight patients with aortitis presenting with unspecific GCA-like symptoms were examined. Aortitis was diagnosed and followed up by [18F]FDG-PET and MRI. The aorta was divided into three vascular regions (ascending aorta, aortic arch, and descending aorta) to localise the aortic inflammation and compare both imaging techniques. Results were correlated with clinical and laboratory examinations. Results: At diagnosis, 20/24 vascular regions from eight patients were positive by [18F]FDG-PET scan and 15/21 aortic regions by MRI. Patients were treated with corticosteroids and followed up for a mean (SD) of 13.3 (4.7) months. In [18F]FDG-PET, 11/20 (55%) initially pathological aortic regions returned to normal in the follow up examination, which correlated closely with the clinical and laboratory follow up examination. Conversely, in MRI, 14/15 initially affected vascular regions were unchanged. Conclusions: [18F]FDG-PET and MRI are both effective techniques for detecting early aortitis and have a high correlation with laboratory inflammatory measures. However, during the follow up examination, [18F]FDG-PET uptake decreased in line with the clinical symptoms and inflammatory serum markers, whereas MRI scans gave more static results.