Cross-modality PET/CT and contrast-enhanced CT imaging for pancreatic cancer

摘要

AIM:To explore the diagnostic value of the crossmodality fusion images provided by positron emission tomography/computed tomography(PET/CT) and contrast-enhanced CT(CECT) for pancreatic cancer(PC).METHODS:Data from 70 patients with pancreatic lesions who underwent CECT and PET/CT examinations at our hospital from August 2010 to October 2012were analyzed.PET/CECT for the cross-modality image fusion was obtained using Ture D software.The diagnostic efficiencies of PET/CT,CECT and PET/CECT were calculated and compared with each other using aχ2 test.P0.05for each).In 17 of the 50 patients with PC confirmed by histology or clinical follow-up,distant metastasis was confirmed.The differences in the sensitivity and NPV between CECT and PET/CECT in detecting distant metastasis were statistically significant(P<0.05 for each).CONCLUSION:Cross-modality image fusion of PET/CT and CECT is a convenient and effective method that can be used to diagnose and stage PC,compensating for the defects of PET/CT and CECT when they are conducted individually.