Aim: The aim of this study was to evaluate whether the variations in the origin of the segment 4 artery effects the left liver lobe volume ratio to the total liver volume in living donor liver transplantation (LDLT).
Material and Methods: Multiphasic CT images were obtained in 136 potential donors (70 men, 66 women). The mean age was 32.6±9 years (ranging from 19 to 53). Volume-rendering techniques were used to evaluate hepatic arteries. The origins of the segment 4 arteries were noted. The volumes of the right lobe, the left lobe and the total liver were measured in each case. The ratios of the left lobe volume to the total liver volume were calculated and subjects were divided into two groups based on this ratio. There were 78 cases with this ratio of ≥ 30 % and 58 cases with this ratio of < 30% in Group1 and Group 2, respectively.
Results: The origins of the segment 4 artery were left hepatic artery in 85 cases and variational in 51 cases. The significant difference was shown in right (p=0,003) and left lobe (p=0,000) volumes between two groups whereas not shown in total liver volumes (p=0,775). No significant difference was observed in origins of segment 4 arteries between two groups (p=0,82). Women significantly have greater ratios of left lobe volume than men (p=0,013).
Conclusion: Our results indicate that the variations in the origin of the segment 4 arteries have no effects on the ratio of left lobe volume to total volume, and merits further study.
Key words: Living Donor Liver Transplantation; Volumetric Analysis; Hepatic Arterian Anatomy.
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