글로벌 연구동향
핵의학
- 2016년 06월호
[Clin Nucl Med.] Utility of FDG PET/CT for Differential Diagnosis of Patients Clinically Suspected of IgG4-Related Disease.성균관의대 / 이주희, 이경한*
- 출처
- Clin Nucl Med.
- 등재일
- 2016 May
- 저널이슈번호
- 41(5):e237-43. doi: 10.1097/RLU.0000000000001153.
- 내용
Abstract
PURPOSE:
We investigated the capacity of F-fluoro-2-deoxy-D-glucose (FDG) positron emission tomography/computed tomography (PET/CT) to differentially diagnose immunoglobulin G4-related disease (IgG4-RD) in clinically suspected patients.
MATERIALS AND METHODS:
Subjects were 94 clinically suspected patients who had tissue IgG4 staining (n = 85) or serum IgG4 greater than 135 mg/dL (n = 9) and underwent FDG PET/CT within 40 days. Clinical, serologic, pathological, and PET/CT findings were analyzed. Binary logistic regression analysis was performed to assess the diagnostic performance of PET/CT.
RESULTS:
Final diagnosis was IgG4-RD in 28, malignancy in 29, IgG4-unrelated inflammation in 35, and undetermined cause in 2 subjects. Patients with IgG4-RD had lower maximum standardized uptake value (SUVmax) of FDG uptake in lesions (4.6 ± 1.7 vs 7.1 ± 5.0) and higher submandibular gland SUVmax (2.8 ± 1.0 vs 2.3 ± 0.6) and were more likely to have diffuse/heterogeneous uptake pattern (78.6% vs 54.8%). The relation between SUVmax of lesions and histopathological findings was weak. On binary logistic regression analysis, lesion SUVmax, submandibular gland SUVmax, and multiorgan involvement were significant predictors of IgG4-RD and provided an area under the receiver operating characteristics curve of 0.824. With optimum criteria, FDG PET/CT had a sensitivity of 85.7% and specificity of 66.1% for diagnosing IgG4-RD.
CONCLUSIONS:
FDG PET/CT findings may have the capacity to potentially differentiate IgG4 RD from other diseases in clinically suspected patients.
Author information
Lee J1, Hyun SH, Kim S, Kim DK, Lee JK, Moon SH, Cho YS, Choe YS, Kim BT, Lee KH.
1From the Departments of *Nuclear Medicine, †Pathology, and ‡Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
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