J Korean Radiol Soc.  1996 Oct;35(4):565-569.

Detection and Localization of Islet Cell Tumor of the Pancreas: Usefulness of the Arterial Dominant Phase Images of Spiral CT

• Kim SS
• Han JK
• Choi BI
• Chung MJ
• Lee SH
• Yeon KM

Abstract

PURPOSE
To evaluate the usefulness of the arterial dominant phase images of spiral CT in the detection and localization of pancreatic islet cell tumor.
MATERIALS AND METHODS
Six patients with pathologically proven isletcell tumors of the pancreas were studied with two-phase spiral CT. Images of the arterial dominant phase and delayed phase were obtained at 30 and 180 seconds after the initiation of injection of 100 ml of contrast materialat a rate of 3ml/sec. The parameters of scanning were 3-mm thickness, table speed of 4mm/sec, and reconstruction at 2-mm intervals. Images were prospectively analyzed and the operative findings were used as the reference standard for tumor detection and localization.
RESULTS
On arterial dominant phase images, lesions were definitely depicted in five patients(83%) and were suspicious in one (17%). In the delayed phase, only two tumors(33%) were demonstrated.
CONCLUSION
The arterial dominant phase of spiral CT is useful in the preoperative detection and localization of islet cell tumor of the pancreas.

Keyword

Pancreas, CT; Pancreas, neoplasms; Computed tomography(CT), helical technology

MeSH Terms

Adenoma, Islet Cell*
Humans
Islets of Langerhans*
Pancreas*
Prospective Studies
Tomography, Spiral Computed*