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Computerized estimation of the lung volume removed during lung volume reduction surgery
- Source :
- Academic radiology. 13(11)
- Publication Year :
- 2006
-
Abstract
- Rationale and Objectives This study was designed to develop an automated method for estimating lung volume removed during lung volume reduction surgery (LVRS) using computed tomography (CT). Materials and Methods The CT examinations of six patients who underwent bilateral LVRS were analyzed in this study. The resected lung tissue (right and left) was weighed during pathologic examination. An automated computer scheme was developed to estimate the lung volume removed using the CT voxel values and lung specimen weight. The computed fraction of lung volume removed was evaluated across a range of simulated surgical planes (ie, other than parallel to the CT image plane) and CT reconstruction kernels, and it was compared with the surgeons’ postsurgical estimates. Results The computed fraction of the lung volume removed during LVRS was linearly correlated with the resected lung tissue weight (Pearson correlation = 0.697, P = .012). The computed fraction of lung volume removed ranged from 12.9% to 51.7% of the total lung volume. The surgeons’ postsurgical estimates of lung volume removed ranged from 30% to 33%. The percent difference between the surgeons’ estimates and the computed lung volume removed as a percentage of the surgeons’ estimates ranged from −72.3% to 57.0% with mean absolute difference of 29.7% (±20.7). Conclusion The preliminary findings of this study suggest that the proposed quantitative model should provide an objective measure of lung volume removed during LVRS that may be used to investigate the relationship between lung volume removed and outcome.
- Subjects :
- Male
medicine.medical_specialty
medicine.medical_treatment
Computed tomography
Lung volume reduction surgery
computer.software_genre
Pneumonectomy
Absorptiometry, Photon
Voxel
Artificial Intelligence
Forced Expiratory Volume
medicine
Image Processing, Computer-Assisted
Humans
Radiology, Nuclear Medicine and imaging
Lung volumes
Aged
Carbon Monoxide
Lung
medicine.diagnostic_test
business.industry
Total Lung Capacity
Organ Size
respiratory system
Middle Aged
respiratory tract diseases
medicine.anatomical_structure
Treatment Outcome
Pulmonary Emphysema
Research Design
Linear Models
Female
Radiology
Tomography
business
computer
Tomography, Spiral Computed
Subjects
Details
- ISSN :
- 10766332
- Volume :
- 13
- Issue :
- 11
- Database :
- OpenAIRE
- Journal :
- Academic radiology
- Accession number :
- edsair.doi.dedup.....9daaf39c28bdb682b40e9117896033e9