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.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords