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Liver volume assessment by conventional vs. helical CT
J Stapakis1, E Stamm, R Townsend
1Department of Radiology, University of Colorado Health Sciences Center, Denver 80262, USA.
Abdominal Imaging
|May 1, 1995
Summary
Helical computed tomography (CT) and conventional CT provide similar liver volume measurements. This finding supports helical CT as a reliable method for preoperative liver transplant evaluations, minimizing patient motion inaccuracies.
Area of Science:
- Radiology
- Medical Imaging
- Hepatology
Background:
- Accurate noninvasive liver volume measurement is crucial for clinical applications, especially in liver transplant recipient preoperative evaluation.
- Helical (spiral) computed tomography (CT) offers potential advantages over conventional CT due to single breath-hold imaging, reducing motion-related inaccuracies.
Purpose of the Study:
- To compare the accuracy of liver volume measurements between conventional CT and helical CT.
- To evaluate the utility of helical CT in the preoperative assessment of liver transplant candidates.
Main Methods:
- A comparative study involving 22 patients undergoing preoperative evaluation for liver transplantation.
- Liver volumes were measured using both conventional CT and helical CT techniques.
Main Results:
- The mean liver volume measured by helical CT was 1328 ml (SD 405).
- The mean liver volume measured by conventional CT was 1323 ml (SD 417).
- No statistically significant difference was observed between the liver volumes obtained from helical CT and conventional CT for individual patients.
Conclusions:
- Helical CT and conventional CT yield comparable liver volume measurements.
- Helical CT is a viable and accurate imaging modality for assessing liver volume in patients awaiting liver transplantation.