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American Journal of Roentgenology, Vol 162, 1425-1429, Copyright © 1994 by American Roentgen Ray Society

ARTICLES

Three-dimensional models of the abdominal vasculature based on helical CT: usefulness in patients with pancreatic neoplasms

RK Zeman, WJ Davros, P Berman, DI Weltman, PM Silverman, C Cooper, SR Evans, RR Buras, TJ Stahl and RJ Nauta
Department of Radiology, Georgetown University Medical Center, Washington, DC 20007.

Three-dimensional (3D) rendering of helical (spiral) CT data is used increasingly to show abnormalities of the vascular system [1]. Abdominal applications have focused mainly on the arterial system, but the portal venous system also can be depicted effectively with this technique. In patients with pancreaticobiliary neoplasms, axial display of helical CT images generally allows accurate staging of the lesion [2, 3]. Many surgeons, however, continue to request arteriography to specifically look for evidence of vascular encasement that would preclude surgery or vascular anomalies that would alter the surgical approach [4, 5]. The purpose of this essay is to illustrate the value of 3D rendering of CT data in providing useful information for surgical planning and showing the extent of vascular involvement by tumor.
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Copyright © 1994 by the American Roentgen Ray Society.