Coefficient factor for graft weight estimation from preoperative computed tomography volumetry in living donor liver transplantation

2011 ◽  
Vol 17 (4) ◽  
pp. 369-372 ◽  
Author(s):  
Tetsuji Yoneyama ◽  
Katsuhiro Asonuma ◽  
Hideaki Okajima ◽  
Kwang-Jong Lee ◽  
Hidekazu Yamamoto ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Liver Transplantation ◽  
Living Donor ◽  
Living Donor Liver Transplantation ◽  
Weight Estimation ◽  
Donor Liver ◽  
Donor Liver Transplantation ◽  
Graft Weight ◽  
Computed Tomography Volumetry

scholarly journals PREOPERATIVE COMPUTED TOMOGRAPHY VOLUMETRY AND GRAFT WEIGHT ESTIMATION IN ADULT LIVING DONOR LIVER TRANSPLANTATION

2017 ◽  
Vol 30 (1) ◽  
pp. 38-41 ◽  
Author(s):  
Rafael S. PINHEIRO ◽  
Ruy J. CRUZ-JR ◽  
Wellington ANDRAUS ◽  
Liliana DUCATTI ◽  
Rodrigo B. MARTINO ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Living Donor ◽  
Living Donor Liver Transplantation ◽  
Normal Liver ◽  
Liver Parenchyma ◽  
Donor Liver ◽  
Donor Liver Transplantation ◽  
Graft Weight ◽  
Computed Tomography Volumetry ◽  
Graft Volume

ABSTRACT Background: Computed tomography volumetry (CTV) is a useful tool for predicting graft weights (GW) for living donor liver transplantation (LDLT). Few studies have examined the correlation between CTV and GW in normal liver parenchyma. Aim: To analyze the correlation between CTV and GW in an adult LDLT population and provide a systematic review of the existing mathematical models to calculate partial liver graft weight. Methods: Between January 2009 and January 2013, 28 consecutive donors undergoing right hepatectomy for LDLT were retrospectively reviewed. All grafts were perfused with HTK solution. Estimated graft volume was estimated by CTV and these values were compared to the actual graft weight, which was measured after liver harvesting and perfusion. Results: Median actual GW was 782.5 g, averaged 791.43±136 g and ranged from 520-1185 g. Median estimated graft volume was 927.5 ml, averaged 944.86±200.74 ml and ranged from 600-1477 ml. Linear regression of estimated graft volume and actual GW was significantly linear (GW=0.82 estimated graft volume, r2=0.98, slope=0.47, standard deviation of 0.024 and p<0.0001). Spearman Linear correlation was 0.65 with 95% CI of 0.45 - 0.99 (p<0.0001). Conclusion: The one-to-one rule did not applied in patients with normal liver parenchyma. A better estimation of graft weight could be reached by multiplying estimated graft volume by 0.82.

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