Incidental Diagnosis of Thrombus Within an Aneurysm on 18F-FDG PET/CT: Frequency in 926 Patients

Journal of Nuclear Medicine

Medhat M. Osman¹  Nghi C. Nguyen¹  Ganesh Kudva¹  Razi Muzaffar¹ 

关键词: cardiology (clinical);    PET/CT;    vascular;    aneurysm;    thrombus;   

DOI  :  10.2967/jnumed.111.091264

学科分类：医学（综合）

来源: Society of Nuclear Medicine

【 摘 要 】

Our objective was to evaluate the incidence of aneurysm and the frequency of thrombus within an aneurysm on unenhanced 18F-FDG PET/CT studies. Methods: We reviewed 1,540 PET/CT scans from 926 patients. A log recorded whether each case of aneurysm had a suspected thrombus. The maximal standardized uptake value of the patent vessel was compared with the thrombus. Findings were confirmed using all available follow-up data. Results: Aneurysm was found incidentally in 16 (1.7%) of the 926 patients, with 15 occurring in the abdominal aorta and 1 in the internal jugular vein. Seven of these 16 patients had shown suggestions of thrombus on unenhanced PET/CT, and in all 7, thrombi were confirmed on contrast-enhanced CT. Conclusion: In 1.7% of patients, aneurysm was found incidentally on PET/CT, and thrombus was present in 44% of these cases.

【 授权许可】

Unknown