A Comparative Study Of EUW And Ultrasound, CT, MRI On The Resectability Of Pancreatic Cancer

Objectives:With the developments of medical technology and the innovations of devices, more and more pancreatic lesions were diagnosed these years. Pancreatic cancers were usually diagnosed at advanced stages with poor prognosis. Radical resection for pancreatic cancer is probably the best choice for the patients, but the operation causes big injury, and the recovery is slow. So preoperative evaluation is very important, especially for the lesions couldn’t be resected. In recent years, with the development of endoscopic technology, endoscopic ultrasonography is gradually applied in the process of diagnosis and treatment of pancreatic cancer. This study compares the effects of endoscopic ultrasonograpy with ultrasound, CT, and MRI for the evaluation of pancreatic cancer resectability.Methods:This study retrospectively collected and analyzed the clinical data of the patients diagnosed pancreatic cancer and considering operation treatments in First Hospital of Lanzhou University, Department-Ⅱ of General Surgery from April 2013 to December 2014. All the patients underwent ultrasound, CT, MRI, EUS. EUS was done to make further evaluation on resectability. The clinical data included age, sex, medical history, imaging examination results, etc. With these data, we compared the effects on the resectability evaluation of EUS with ultrasound, CT, MRI.Results:41 cases were included in the study. There were 27 men and 14 women. The mean age was 57.3 years. All the patients underwent operation.26 cases were successfully resected,15 cases were not. All the patients were definitely diagnosed with pancreatic cancer. EUS compared with CT、MRI, the difference was statistically significant (P<0.05). But combined with EUS, the consistency was the best (k=0.95).Conclusions:US is not fit for the resectability evaluation before operation because of the low diagnostic accuracy. CT、MRI、EUS are all useful in evaluating the resectability. EUS is a combination of ultrasound and endoscopy, it can not only scan the mucosa, but also do real-time ultrasound scanning. Then get the clear images around the pancreas. CT combined with EUS is probably the best choice for evaluating the resectability.