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- W2590477304 abstract "Objective To explore the value of 11C-choline PET/CT in patients with hepatic spaceoccupying lesions that have an indeterminate diagnosis by 18F-fluorodeoxyglucose (FDG) PET/CT. Methods A total of 25 liver masses in 20 patients with an indeterminate diagnosis based on 18F-FDG PET/CT were enrolled. Regional 11C-choline PET/CT scan was performed in all of the patients. Lesions with intense 11C-choline uptake were considered as positive. The semiquantitative maximum standardized uptake value(SUVmax) was measured and the tumor-to-liver (T/L) radioactivity ratio was calculated. The Mann-Whitney test,Kruskal-Wallis test and crosstabs x2-test were performed by using SPSS version 11.5. Results Of the 25 lesions,21 were proven to be hepatocellular carcinomas (HCC),3 hemangiomas,and 1 parasitic granuloma. The sensitivity of 11C-choline PET/CT for the detection of HCC was 66.7% (14/21). 11C-choline PET/CT had a higher sensitivity for well differentiated HCC than moderately and poorly differentiated HCC on a patient basis (8/9 vs 2/5,respectively). There were significant differences of 11C-choline T/L ratios between the HCC positive group,HCC negative group and benign lesion group ( 1.70 ± 0.35,0.86 ± 0.15,and 0.36 ± 0.18,x2 = 19.00,P ＜0.01 ). The lesion size and alphafetoprotein (AFP) level between the HCC positive and negative groups had no significant difference respectively ( Mann Whitney U = 39.00,P ＞0.05,and U=16.00,P＞0.05,respectively). Conclusions 11C-choline is complementary to 18F-FDG PET/CT for the detection of HCC,especially for well differentiated HCC.Key words: Liver neoplasms; Tomography,emission-computed; Tomography,X-ray computed; Choline; Deoxyglucose" @default.
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- W2590477304 date "2010-08-25" @default.
- W2590477304 modified "2023-09-25" @default.
- W2590477304 title "Application of 11C-choline PET/CT for the hepatic space-occupying lesions with an indeterminate diagnosis by 18F-FDG PET/CT" @default.
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