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  • Title: Multislice CT study of pancreatic head arterial dominance.
    Author: Horiguchi A, Ishihara S, Ito M, Nagata H, Asano Y, Yamamoto T, Kato R, Katada K, Miyakawa S.
    Journal: J Hepatobiliary Pancreat Surg; 2008; 15(3):322-6. PubMed ID: 18535772.
    Abstract:
    BACKGROUND/PURPOSE: When a pancreatoduodenectomy is to be conducted, preoperative understanding of the vascular anatomy of the pancreatic head is important in order to reduce intraoperative bleeding. Using multislice computed tomography (MS-CT), we investigated the depiction rate and branching of the inferior pancreaticoduodenal artery (IPDA) and dorsal pancreatic artery (DPA), afferent arteries to the pancreatic head. METHODS: In 109 patients (68 with pancreatic cancer, 21 with biliary tract cancer, 15 with intraductal papillary mucinous tumor of the pancreas, and 5 others), images were taken, using 64-row MS-CT, in the early and late arterial phases. RESULTS: The depiction rates were 98.2% for the IPDA and 96.3% for the DPA. Branching of the IPDA was categorized into three types: a type in which the IPDA formed a common vessel with the first jejunal branch (72.0%), a type in which the IPDA branched directly from the superior mesenteric artery (18.7%), and a type in which the anterior inferior pancreaticoduodenal artery (AIPDA) and posterior inferior pancreaticoduodenal artery (PIPDA) branched separately (9.3%). DPA branching was categorized into five types, in which the DPA branched from the splenic artery (40.0%), from the common hepatic artery (25.7%), from the superior mesenteric artery (20.0%), and from the celiac artery (8.6%), and a type in which the DPA branching did not follow any of the above patterns (5.7%). CONCLUSIONS: MS-CT images of vascular architecture enable evaluation from any angle, which is not possible with conventional angiography, making MS-CT a useful diagnostic imaging technique for understanding the vascular anatomy of the pancreatic head prior to conducting pancreatoduodenectomy for diseases of the pancreatic head region.
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