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Automated liver volumetry in orthotopic liver transplantation using multiphase acquisitions on MDCT
Alain Luciani1, Laszlo Rusko, Laurence Baranes
1Department of Radiology, CHU Henri Mondor, AP-HP, Créteil, France. alain.luciani@hmn.aphp.fr
Objective:
The aim of this study was to test a new automated hepatic volumetry technique by comparing the accuracies and postprocessing times of manual and automated liver volume segmentation methods in a patient population undergoing orthotopic liver transplantation so that liver volume could be determined on pathology as the standard of reference.
Conclusion:
Both manual and automated multiphase MDCT-based volume measurements were strongly correlated to liver volume (Pearson correlation coefficient, r = 0.87 [p < 0.0001] and 0.90 [p < 0.0001], respectively). Automated multiphase segmentation was significantly more rapid than manual segmentation (mean time, 16 ± 5 [SD] and 86 ± 3 seconds, respectively; p = 0.01). Overall, automated liver volumetry based on multiphase CT acquisitions is feasible and more rapid than manual segmentation.
