DIAGNOSTIC ACCURACY OF TRANSABDOMINAL ULTRASOUND IN ACUTE PANCREATITIS TAKING CONTRAST ENHANCED CT AS GOLD STANDARD

Abstract

Objective: To know the diagnostic accuracy of transabdominal ultrasound in acute Pancreatitis being contrast enhanced CT   as gold standard

Background:  Pancreatitis is an inflammation of pancreas  in which pancreatic enzymes acts on pancreatic parenchyma and cause necrosis of gland. The outcome does not affect morphology and function of pancreas this process is known as acute pancreatitis. Recurrent attacks of pancreatitis causes abnormality in it structure and also in function; these recurrent attacks are known as chronic pancreatitis.

 Methods: This study was cross sectional. It was carried out in the Department of Radiology, Hayatabad Medical Complex Peshawar   from July, 2018 to Jan, 2019 (06 months). A lower-frequency transducer Of 3.5 to 5 MHz curved array was selected. Longitudinal transabdominal sonogram of pancreas was obtained and then CT of the abdomen pelvis with and without contrast was done. All patients of either gender, 18-60 years old having  acute pancreatitis,  were taken to contribute  in the study.

Results: As per acute pancreatitis on transabdominal ultrasound, 34 (13.78%) patients were diagnosed with acute pancreatitis. (Table No. 5). As per acute pancreatitis on CT scan, 41 (16.73%) were diagnosed with acute pancreatitis. As per trans abdominal ultrasound, sensitivity was recorded as 45.33%, specificity was (49.16%), positive predictive value (PPV) 13.88%, negative predictive value (NPV) 83.27% whereas accuracy was recorded as 48.57%.

Conclusion:  Transabdominal ultrasound is also a safe and authentic method for the diagnosis and monitoring of acute pancreatitis and severe acute pancreatitis, and can be used instead of contrast enhanced CT scan.