Evaluation Of The Diagnosis Of Pancreatic Focal Lesions By Contrast-enhanced Ultrasound

Objective:To evaluate the accuracy of the diagnosis of pancreatic focal lesions between benign and malignant by contrast — enhanced ultrasound. Methods:86 cases of suspected pancreatic focal lesions patients, by the First Affiliated Hospital of Xinjiang Medical University, were examined by CEUS,81cases were in the study group according to the gold standard, specificity (Spe),positive predictive value, (PV+) and negative predictive value (PV-), positive likelihood ration (LR+),negative likelihood ration(LR-) and the coincidence rate. Results:61 cases of pancreatic malignant lesions were confirmed by CEUS,40 cases were located the head of the pancreas,15 cases were the body of the pancreas,6 case were the tail of the pancreas, the other 20 are pancreatic benign lesions 16 cases were located the head of the pancreas,3cases were the body of the pancreas,1 case were the tail of the pancreas.64 cases of pancreatic malignant lesions were confirmed by pathology,43 cases were located the head of the pancreas,15cases were the body of the pancreas.6cases were the tail of the pancreas, the other 17 cases were pancreatic benign lesions.16 cases were located the had of the pancreas,3 cases were the body of the pancreas,1 cases were the tail of the pancreas. Pancreatic focal lesions diagnosed by CEUS Sen 90.6%,Spe 82.4%,PV-70%, PV+95%, LR+5.1, LR-0.1, diagnosis rate 88.8%,missed diagnosis in 3 cases of misdiagnosis. Conclusion: Contrast enhanced ultrasound playing an important role in judging the pancreas lesions between benign and malignant, providing basis for clinical selection of operation.