OBJECTIVE: We aimed to improve diagnostic accuracy of (18)F-fluoro-2-deoxyglucose (FDG) PET/CT for gastric cancer with water gastric inflation. MATERIALS AND METHODS: 44 gastric cancer patients (M:F=30:14, age ± std=62.1 ± 14.5 y) were enrolled before surgery. Fifty minutes after injection of FDG (0.14 mCi/kg body weight), whole body PET/CT was performed first and then regional PET/CT over gastric area was obtained 80 min post FDG injection after water gastric inflation. Diagnostic accuracies for loco-regional lesions were compared between whole body and regional PET/CT. RESULTS:48 primary tumors (23 EGC and 25 AGC) and 348 LN stations (61 metastatic and 287 benign) in 44 patients were investigated. Primary tumor sensitivity of whole body PET/CT (50%=24/48) was significantly improved by regional PET/CT (75%=36/48, p<0.005). Sensitivity of whole body PET/CT (24.6%=15/61) for LN metastasis was also significantly improved by regional PET/CT (36.1%=22/61, p<0.01), whereas specificity of whole body PET/CT (99.3%=285/287) was not compromised by regional PET/CT (98.3%=282/287, p>0.05). Higher primary tumor FDG uptake in regional PET/CT indicated shorter progress-free survival (p=0.0003). CONCLUSION:Diagnostic accuracy of whole bodyPET/CT for loco-regional disease of gastric cancer could be significantly improved by regional PET/CT after water gastric inflation and prognosis could be effectively predicted by primary tumor FDG uptake in regional PET/CT.
RCT Entities:
OBJECTIVE: We aimed to improve diagnostic accuracy of (18)F-fluoro-2-deoxyglucose (FDG) PET/CT for gastric cancer with water gastric inflation. MATERIALS AND METHODS: 44 gastric cancerpatients (M:F=30:14, age ± std=62.1 ± 14.5 y) were enrolled before surgery. Fifty minutes after injection of FDG (0.14 mCi/kg body weight), whole body PET/CT was performed first and then regional PET/CT over gastric area was obtained 80 min post FDG injection after water gastric inflation. Diagnostic accuracies for loco-regional lesions were compared between whole body and regional PET/CT. RESULTS: 48 primary tumors (23 EGC and 25 AGC) and 348 LN stations (61 metastatic and 287 benign) in 44 patients were investigated. Primary tumor sensitivity of whole body PET/CT (50%=24/48) was significantly improved by regional PET/CT (75%=36/48, p<0.005). Sensitivity of whole body PET/CT (24.6%=15/61) for LN metastasis was also significantly improved by regional PET/CT (36.1%=22/61, p<0.01), whereas specificity of whole body PET/CT (99.3%=285/287) was not compromised by regional PET/CT (98.3%=282/287, p>0.05). Higher primary tumorFDG uptake in regional PET/CT indicated shorter progress-free survival (p=0.0003). CONCLUSION: Diagnostic accuracy of whole body PET/CT for loco-regional disease of gastric cancer could be significantly improved by regional PET/CT after water gastric inflation and prognosis could be effectively predicted by primary tumorFDG uptake in regional PET/CT.
Authors: Pierre-Yves Le Roux; Cuong P Duong; Carlos S Cabalag; Bimal K Parameswaran; Jason Callahan; Rodney J Hicks Journal: Eur J Nucl Med Mol Imaging Date: 2015-10-21 Impact factor: 9.236
Authors: Kinga Grabinska; Maciej Pelak; Jerzy Wydmanski; Andrzej Tukiendorf; Andrea d'Amico Journal: World J Gastroenterol Date: 2015-05-21 Impact factor: 5.742
Authors: Min Young Yoo; Yoo-Seok Yoon; Min Seok Suh; Jai Young Cho; Ho-Seong Han; Won Woo Lee Journal: Medicine (Baltimore) Date: 2020-08-28 Impact factor: 1.817