Purpose: To test liver segmentation of 3D-multi-gradient-echo MRI data and segmental R2* evaluation.
Methods: 44 patients examined by multi-gradient-echo MRI underwent semiautomatic liver segmentation and subdivision into nine segments. Segmental R2* values were analyzed in all patients together and in patient subgroups.
Results: R2* was lowest in segment 1 (S1), differences to S1 were significant for S3, S5 and S6, highly significant to S2 and S7. Patients with high average R2* showed also significant differences to S1 in some segments.
Conclusions: Inhomogeneity of hepatic iron distribution was found. Low R2* in S1 may be explained by its special vascular supply.
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