PURPOSE: To assess the value of FDG-PET/CT in the evaluation of gallbladder carcinomas (GBC). METHODS: A prospective cohort of patients with suspicion of or confirmed GBC was studied with FDG-PET/CT. Diagnostic accuracy parameters were calculated in comparison with pathology and/or the clinical course of patients. Clinical impact of PET/CT imaging was estimated. RESULTS: Forty-nine patients were enrolled (34 malignant tumors, 15 benign lesions; 37 staging, 12 restaging). Overall diagnostic accuracy was 95.9% for the diagnosis of the primary lesion, 85.7% for lymph node involvement and 95.9% for metastatic disease. Mean SUVmax in malignant gallbladder lesions was 7.92 ± 6.25 Analysis of ROC curves showed a SUVmax cut-off value of 3.62 for malignancy (S: 78.1%; Sp: 88.2%). Diagnostic accuracy in the restaging group reached 100%. FDG-PET/CT changed the management of 22.4% of the population. COMMENTS: Diagnosis of malignancy or benignity of suspicious gallbladder lesions is accurately made with FDG PET/CT, allowing a precise staging of GBC due to its ability to identify unsuspected metastatic disease. SUVmax has a complementary role in addition to visual analysis.
PURPOSE: To assess the value of FDG-PET/CT in the evaluation of gallbladder carcinomas (GBC). METHODS: A prospective cohort of patients with suspicion of or confirmed GBC was studied with FDG-PET/CT. Diagnostic accuracy parameters were calculated in comparison with pathology and/or the clinical course of patients. Clinical impact of PET/CT imaging was estimated. RESULTS: Forty-nine patients were enrolled (34 malignant tumors, 15 benign lesions; 37 staging, 12 restaging). Overall diagnostic accuracy was 95.9% for the diagnosis of the primary lesion, 85.7% for lymph node involvement and 95.9% for metastatic disease. Mean SUVmax in malignant gallbladder lesions was 7.92 ± 6.25 Analysis of ROC curves showed a SUVmax cut-off value of 3.62 for malignancy (S: 78.1%; Sp: 88.2%). Diagnostic accuracy in the restaging group reached 100%. FDG-PET/CT changed the management of 22.4% of the population. COMMENTS: Diagnosis of malignancy or benignity of suspicious gallbladder lesions is accurately made with FDG PET/CT, allowing a precise staging of GBC due to its ability to identify unsuspected metastatic disease. SUVmax has a complementary role in addition to visual analysis.
Authors: Thomas A Aloia; Nicolas Járufe; Milind Javle; Shishir K Maithel; Juan C Roa; Volkan Adsay; Felipe J F Coimbra; William R Jarnagin Journal: HPB (Oxford) Date: 2015-08 Impact factor: 3.647
Authors: Vikas Gupta; K S Vishnu; Thakur D Yadav; Yashwant R Sakaray; Santosh Irrinki; B R Mittal; N Kalra; K Vaiphei Journal: J Gastrointest Cancer Date: 2019-12
Authors: Kui Sun Choi; Sae Byeol Choi; Pyoungjae Park; Wan Bae Kim; Sang Yong Choi Journal: World J Gastroenterol Date: 2015-01-28 Impact factor: 5.742
Authors: Universe Leung; Neeta Pandit-Taskar; Carlos U Corvera; Michael I D'Angelica; Peter J Allen; T Peter Kingham; Ronald P DeMatteo; William R Jarnagin; Yuman Fong Journal: HPB (Oxford) Date: 2014-06-04 Impact factor: 3.647