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Application of the liver three dimensional reconstruction technology research purposes of the first part of the liver of three-dimensional reconstruction techniques for measuring the volume of the liver segment to rebuild normal liver and liver paragraph three-dimensional images, measuring the volume of each liver segment, normal liver segment volume statistics, to provide guidance for liver surgery. Methods 16-row spiral CT scan acquisition liver two-dimensional image data, the applications independently developed virtual liver surgery planning software Liv1.0 reconstruction of the 82 cases of normal liver and liver segment three-dimensional image, all-round display image information of the liver and internal pipeline, Applied Mathematics method, the software automatically divided the liver segment range and measure the volume of each liver segment. Results after the redevelopment, liver morphology realistic anatomic landmarks clearly intrahepatic portal vein, hepatic vein clear display, branch of hepatic segment inner door vein, hepatic vein genus Zhizou line and the relationship between clarity, liver segment in the surface of the liver distribution such as map-like, inter-segment boundaries was irregular wavy. Total liver volume (1236 ± 221) ml, the liver dorsal sector (I segment and Ⅸ above) volume (21 ± 7) ml, Ⅱ segment (151 ± 49) ml, Ⅲ section (131 ± 37) ml IV paragraph (165 ± 46) ml Ⅴ segment (201 ± 52) ml, Ⅵ segment (146 ± 45) ml, paragraph VII (177 ± 55) ml, paragraph VIII (252 ± 78) ml, the percentage of the total liver volume (1.8 ± 0.3)%, (12.1 ± 2.5)%, (11.3 ± 2.3)%, (15.0 ± 3.2)%, (18.3 ± 4.3)%, (12.5 ± 3.3)%, (14.5 ± 2.0)%, (22.2 ± 4.6)%. (Ⅱ, III, Ⅳ above) left liver volume (449 ± 92) ml, the percentage of the total liver volume (35.3 ± 6.4)%, the volume of the right liver (Ⅴ, VI, Ⅶ, VIII, paragraph) (788 ± 149) ml, the percentage of the total liver volume (64.9 ± 6.2)%. Conclusion virtual liver surgery planning software Liv1.0 of reconstruction of the liver and liver segment image clear and vivid, accurate measurement of volume, the hepatic segment volume statistics for liver surgery, such as living donor liver transplant, liver segment-oriented liver resection to provide guidance. The second part of the liver resection postoperative remnant liver volume and liver function indicators related research purpose applications Liv1.0 measurement remnant liver volume after treatment of primary liver cancer surgery, remnant liver volume ratio calculation, analysis remnant liver volume ratio and postoperative liver The correlation of functional indicators to provide guidance for the accurate assessment of postoperative liver function, to avoid the occurrence of liver failure. 40 cases of patients with primary liver cancer underwent surgery, to use virtual liver surgery planning software Liv1.0 line virtual liver surgery, preoperative measurement in patients with residual liver volume, calculate the remnant liver volume ratio of the remnant liver volume ratio = remnant liver volume / standardized liver volume. Observation 30 days after the liver function parameters: alanine aminotransferase peak (ALT), total bilirubin peak (TBIL), the cholinesterase the lowest value (CHE), serum albumin minimum value (ALB), prothrombin time peak (PT), to study the correlation of the remnant liver volume ratio and postoperative liver function indicators. Results remnant liver volume was highly negative correlation, the correlation coefficient r = -0.7980; highly correlated with the the cholinesterase minimum value, the correlation coefficient r = 0.7883; than 30 days after the peak total bilirubin and prothrombin time peak showed a high negative correlation, the correlation coefficient r = -0.6951; peak alanine transaminase, serum albumin lowest value related conclusions remnant liver volume than 30 days after the peak total bilirubin, cholinesterase lowest value and peak prothrombin time has a significant remnant liver volume can effectively predict postoperative liver reserve function, should develop a detailed preoperative surgical planning, estimating remnant liver volume, to avoid the risk of surgery to reduce the occurrence of liver dysfunction.
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