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[A simple method for estimation of liver volume using CT-scan after major hepatic resection]
Y Une1, K Ogasawara, T Kamiyama
1First Department of Surgery, Hokkaido University School of Medicine, Sapporo, Japan.
Nihon Geka Gakkai Zasshi
|July 1, 1993
Summary
This study introduces a new system for estimating liver volume from CT scans, aiding in surgical planning for liver cancer patients. The method accurately predicts post-surgery liver function and identifies risks for liver insufficiency.
Area of Science:
- Medical Imaging
- Hepatology
- Surgical Oncology
Background:
- Accurate estimation of liver volume is crucial for surgical planning, especially in patients with hepatocellular carcinoma.
- Assessing hepatic reserve pre- and post-surgery is vital for predicting patient outcomes and preventing complications.
Purpose of the Study:
- To develop and validate a novel system for estimating liver volume using computed tomography (CT) scan images.
- To evaluate the correlation between preoperatively estimated liver volumes and resected specimen weight.
- To investigate factors influencing the postoperative increase in residual liver volume and identify predictors of liver insufficiency.
Main Methods:
- A new system integrating X-Plan360i and a personal computer was developed for liver volume estimation from CT films.
- Liver volumes were measured in 35 patients with hepatocellular carcinoma before and 4-6 weeks after hepatic resection.
- Correlation analysis was performed between estimated preoperative liver volumes and the weight of resected liver tissue.
Main Results:
- Preoperative estimated liver volumes showed a significant correlation with the weight of the resected specimen.
- Postoperative residual liver volume increase rates were influenced by the ratio of resected liver volume and the severity of underlying cirrhosis.
- Patients experiencing postoperative liver insufficiency exhibited lower postoperative liver volume regeneration rates compared to those without insufficiency.
Conclusions:
- The developed CT-based system provides a simple and reliable method for liver volume measurement.
- This technique is valuable for assessing hepatic reserve and guiding surgical decisions in liver cancer patients.
- The findings highlight the importance of considering resected volume and cirrhosis severity in predicting liver regeneration and potential insufficiency.