Purpose: Our aims were to present the hepatic arterial variations thatwere detected with computed tomographic angiography (CTA) andconfirmed by operation in living liver donors and to emphasize theusefulness of CTA in the assessment of hepatic arterial anatomy.
Materials and Methods: The donors of 100 patients (46 women and 54 men) who had undergone a living donor liver transplantation in a (blinded) hospital between July 2004 and June 2007 were evaluated. The age of the donors ranged from 18 to 63 years (mean, 39 years). The CTA images obtained by a 16-slice multidetector CT before the transplantation procedure were retrospectively evaluated for arterial variations, and the results were compared with the results of the operation.
Results: In 59 donors (59%), classic hepatic arterial anatomy was observed. In the remaining 41 donors (41%), various arterial variations were determined. In 11 of the donors (11%), variations were not com�patible with the description of Michels classification. In all of our patients, CTA findings were confirmed with operational findings. Our complication rate was 1%. Only 1 of the patients who had undergone the transplantation developed hepatic arterial thrombus, and the re�maining 99 patients had no arterial complications.
Conclusions: The course of the vascular structures before live donor liver transplantation is essential for planning and success of the opera�tion. Our study showed that multidetector CTA can be used success�fully in hepatic artery imaging of liver transplantation donors as a , noninvasive method.