Purpose: Analysis, evaluation and classification of hepatic arterial supply variants and determination of their frequency distribution in CT-angiographies.
Materials and Methods: CT-angiographies of 1,568 patients were evaluated retrospectively for the period between January 1, 2010 and August 30, 2012. The hepatic arterial anatomy was assessed and categorized according to Michels?s classification. So far unclassified variants were considered separately.
Results: CT-angiographies of 1297 patients were included in the study. Type I according to Michels was seen in 937 cases (72.2?%), followed by type V in 114 patients (8.8?%) and type III in 83 patients (6.4?%). Type X could not be found in any of the patients. Not yet classified variants were discovered in 26 patients. The most frequent variant in this connection was a right hepatic artery originating from the superior mesenteric artery with the left hepatic artery originating from the left gastric artery (n?=?10).
Conclusion: Michels?s classification could be largely confirmed on the basis of a radiologically examined patient population. Not yet classified variants were categorized into subgroups of the existing classification.
Key points:
??Imaging of hepatic arterial supply variants using CT-angiography
??Distribution of variations of arterial liver supply in a general patient population
??Expansion of Michels?s classification to include new variations of the arterial liver supply
Citation Format:
??L?schner C, Nagel SN, Kausche S et?al. Hepatic Arterial Supply in 1297 CT-Angiographies. Fortschr R?ntgenstr 2015; 187: 276???282
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.