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Abstract
Pancreatic imaging has undergone considerable change in the past decade with advances in computed tomography resulting in substantial improvement in tumor imaging .
The introduction of helical CT has dramatically changed the performance of pancreatic CT scans due to its high quality images, reduced artifacts and volumetric acquisition.
Our work included 20 patients had cancer pancreas (14
males & 6 females). All patients subjected to :
- Clinical examination .
- Ultrasonographic examination .
- Spiral CT scanning.
- Histo-pathological examination in 7 patients.
The adenocarcinomas were the most common tumors in the pancreas with male predominant over female . The size of
tumors in 18 patients were more than 3 cm. In the last 2 patients the size was less than 3 cm., one of them (1.8x1.5cm.)could not detected by conventional CT.
The pancreas being a thin organ, section misregistration due to respiration may result in gaps in the exploration of the pancreas with conventional CT. Helical CT permits scanning of the entire pancreas during a single breath hold which allow excellent visualization of the pancreas and high accuracy in detection of neoplastic tissue (as small as 1.5 cm.).
This can be achieved by the use of thin section (5mm.)acquired after bolus injection of contrast medium.
Because surgical resection currently represents the only known method of curing pancreatic cancer, accurate detection of respectable and unrespectable tumor is mandatory.
Using single phase helical CT may not sufficient to visualize major peripancreatic vessel invasion. So, CT angiography or dual phase helical CT improve radiologists ability to predict the respectability of pancreatic tumor.