The value of CT imaging in diagnosis of pancreas head tumors

Descriptive study was carried out on 66 patients with pancreas head tumors diagnosed clinically, who underwent CT scanning and were treated surgically at Viet Duc Hospital. Ultrasound values were evaluated through the results of operation and pathological anatomy. CT scanning had achieved sensitivity of 96.8% and an accuracy of 90.9% in the diagnosis of the tumors. These values attained 52.3% and 66.7% in the detection of infiltrative signs in neighbouring organs and 75.0% and 90.9% in vessel infiltration. CT scanning was limited in the diagnosis of glandular metastasis and liver metastasis of tumors at pancreas head

Study on ultrasound value on diagnostic of head pancreatic's tumors

A comparative descriptive study was carried out on 80 patients diagnosed as pancrea head tumors. Ultrasound results were evaluated through operated and histopathological outcomes. Ultrasound diagnosis reached 96.1% of sensivity and 92.5% of accurracy, concerning the localization of the tumors the accuracy was 68%. Ultrasound sensitivity in the identification of the signs of infiltration in the neighbour tissues, in blood vessels, in gland was 12.5%, 11.8% and 8.8% respectively.

Computer tomography (CT) in the diagnosis of tumors of surrenal gland - A propose of 55 cases

A retrospective study on 55 subjects with surrenal gland tumors diagnosed by CT showed that the tumors are commonly benign and pheocromocytoma was detected lately with a large size (> 3 cm, accounted for 73.5%). Heterogenous structure of the tumors before and after the injection of the contrasts showed characterustic sign of pheocromocytoma. The CT procedure has had a sensitivity of 100% and a positive predictive value of 89%. In the diagnosis of ganglion metastasis, these ratios were 2/3 and 99% respectively, in the evaluation of infiltration into the liver and the right kidney, these ratios were 58.30% and 95% respectively

Study on the value of ultrasound in the diagnosis of the tumors of pancrea head

From April 1998 to June 2001, ultrasound had diagnosed the tumors at the pancrea head in 80 patients and they were operated at Viet Duc Hospital. Among these subjects, there were 43 tumors of pancrea head, 14 tumors of inferior part of common bile duct, 18 tumors ooffvater ampulla, 2 tumors of duodenal, 2 chronical pancreatitis and 1 unspecific fibroma of liver external bile duct. Among 77 patients of tumor of pancrea head definitely diagnosed, there are 3 falsely positive cases and 3 negative cases by ultrasound. In 48 patients invasive structures in vessal bundle of superior mesenteriolum were diagnosed by surgery. Thus detecting pancrea head tumors, ultrasonic technique is a convenient and simple method with a sensibility of 96.1%