Quantitative evaluation of hepatic function for pre- and post-surgery patients using deconvolution technique in Tc-99m DISIDA SCAN

Tc-99m DISIDA SCAN에서 deconvolution 방법을 이용한 외과적 수술 전후의 간의 정량적 평가

In this study, we measured upper right, lower right, upper left region to find the optimal region which represent liver function. We found that the upper right region is optimal because of high accuracy and low standard deviation. For normal subjects all the calculated HEFs were greater than 100% and all those of abnormal ones were less than 80%. Thus HEF can be assumed to discriminate abnormal livers from normal ones. It was found that the patients with surgical operation would survive if both the pre-and the post-operative HEFs are greater than 50%. Therefore HEF method can be a good estimator for surgeon to determine the surgical operation and to evaluate remaining hepatic function after surgery as well as it is reliable and simple.