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Abdominal fat volume estimation by stereology on CT: a comparison with manual planimetry
- Source :
- European radiology. 26(3)
- Publication Year :
- 2014
-
Abstract
- To deploy and evaluate a stereological point-counting technique on abdominal CT for the estimation of visceral (VAF) and subcutaneous abdominal fat (SAF) volumes.Stereological volume estimations based on point counting and systematic sampling were performed on images from 14 consecutive patients who had undergone abdominal CT. For the optimization of the method, five sampling intensities in combination with 100 and 200 points were tested. The optimum stereological measurements were compared with VAF and SAF volumes derived by the standard technique of manual planimetry on the same scans.Optimization analysis showed that the selection of 200 points along with the sampling intensity 1/8 provided efficient volume estimations in less than 4 min for VAF and SAF together. The optimized stereology showed strong correlation with planimetry (VAF: r = 0.98; SAF: r = 0.98). No statistical differences were found between the two methods (VAF: P = 0.81; SAF: P = 0.83). The 95% limits of agreement were also acceptable (VAF: -16.5%, 16.1%; SAF: -10.8%, 10.7%) and the repeatability of stereology was good (VAF: CV = 4.5%, SAF: CV = 3.2%).Stereology may be successfully applied to CT images for the efficient estimation of abdominal fat volume and may constitute a good alternative to the conventional planimetric technique.Abdominal obesity is associated with increased risk of disease and mortality. Stereology may quantify visceral and subcutaneous abdominal fat accurately and consistently. The application of stereology to estimating abdominal volume fat reduces processing time. Stereology is an efficient alternative method for estimating abdominal fat volume.
- Subjects :
- Adult
Male
medicine.medical_specialty
Abdominal ct
Abdominal Fat
Stereology
030204 cardiovascular system & hematology
Volume estimation
030218 nuclear medicine & medical imaging
03 medical and health sciences
0302 clinical medicine
Abdomen
Abdominal fat
medicine
Humans
Radiology, Nuclear Medicine and imaging
Neuroradiology
Aged
medicine.diagnostic_test
business.industry
fungi
Ultrasound
Reproducibility of Results
Interventional radiology
General Medicine
Middle Aged
Regression Analysis
Female
Radiology
business
Tomography, X-Ray Computed
Subjects
Details
- ISSN :
- 14321084
- Volume :
- 26
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- European radiology
- Accession number :
- edsair.doi.dedup.....4ee9e4314c7149f9622d70b788de2319