Article

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

Department of Radiology, CHU Henri Mondor, AP-HP, Créteil, France.
American Journal of Roentgenology (impact factor: 2.78). 06/2012; 198(6):W568-74. DOI:10.2214/AJR.11.7468 pp.W568-74
Source: PubMed

ABSTRACT 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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Keywords

Automated multiphase segmentation
 
hepatic volumetry technique
 
liver volume
 
liver volume segmentation methods
 
liver volumetry
 
manual segmentation
 
multiphase CT acquisitions
 
multiphase MDCT-based volume measurements
 
patient population undergoing orthotopic liver transplantation
 
Pearson correlation coefficient
 
postprocessing times
 
rapid
 

Alain Luciani