Comparison between IQQA liver image analysis system and manu-traced approaches on liver volume estimation in living donor liver transplantation
10.3760/cma.j.issn.0254-1785.2012.06.009
- VernacularTitle:活体肝移植中IQQA法与手工描记法对供肝体积评估的比较研究
- Author:
Lin WEI
;
Wen-tao NG JIA
;
Wei GAO
;
Tao YANG
;
Zhi-gui ZENG
;
Hao WANG
;
Zhong-yang SHEN
;
Zhi-jun ZHU
- Publication Type:Journal Article
- Keywords:
Liver transplantation;
Living donors;
Liver;
Organ size
- From:
Chinese Journal of Organ Transplantation
2012;33(6):351-353
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the safty and accuracy ot estimating the living donor's graft volume with IQQA liver imaging evaluation system.Methods Between June 2007 and July 2010,123living liver donors were enrolled to undergo 16-slice CT scanning,then graft volume was estimated by both IQQA and manu-traced multi-slice spiral computed tomography (MSCT) approach.The graft volume and time consuming between IQQA and manu-traced MSCT were compared. Pearson Correlation test was uesd to verify the correlation between the estimated graft volume estimated each method and actual graft weight detected in operation.Linear correlation analysis was done.Results The mean graft volume by IQQA and manu-traced MSCT was (856.76 ± 162.18) and (870.64 ±172.54) cm3 respectively preoperation.Paired t-test showed there was no statistically significant difference between IQQA and MSCT methods (P＞0.05).It took mean ( 16.9 ± 1.4) min to calculatethe graft volume by IQQA and (39.3 ± 2.1 ) min by manu-traced MSCT,respectively (P＜0.05).The real graft volume was (632.59 ± 13 1.73) cm3.Pearson correlation test showed the graft volume calculated by either IQQA or MSCT method had a significantly positive correlation with the real graft weight (MSCT r =0.921,IQQA r =0.896,P＜0.01 ).Graft weight could be expressed in the equation:Actual graft weight =- 150.303 + 1.025 × IQQA value or =- 94.397 + 0.955 × MSCT value.Conclusion IQQA system has same accuracy with MSCT method in predicting the graft volume but consuming less time.IQQA system promotes the recognition of clinician on liver three dimensional anatomic structure.
