Automated liver volumetry in orthotopic liver transplantation using multiphase acquisitions on MDCT.

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Luciani, Alain | Rusko, Laszlo | Baranes, Laurence | Pichon, Eric | Loze, Blandine | Deux, Jean-François | Laurent, Alexis | Tran-Van-Nhieu, Jeanne | Rahmouni, Alain

Edité par CCSD ; American Roentgen Ray Society -

International audience. 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.

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