Conference proceeding
3D intersubject warping and registration of pulmonary CT images for a human lung model
Proceedings of SPIE, Vol.4683(1), pp.324-335
Medical Imaging 2002: Physiology and Function from Multidimensional Images
04/22/2002
DOI: 10.1117/12.463598
Abstract
CT can be used to study pulmonary structure-function relationships. There is a growing clinical need to match pulmonary structures across individuals to detect abnormal structure due to disease and to compare regional pulmonary function. In this paper, we propose a novel scheme for registering and warping 3-D pulmonary CT images of different subjects in two main steps: 1) identify a set of reproducible feature points for each CT image to establish correspondences across subjects; 2) use a landmark and intensity-based consistent image registration algorithm to warp a template image volume to the rest of the lung volumes. Effectiveness of the proposed scheme is evaluated and visualized using both gray-level and segmented CT images. Results show that the proposed scheme is able to reduce landmark registration error and relative volume overlapping error from 10.5 mm and 0.70 before registration to 0.4 mm and 0.11, respectively. The proposed scheme can be used to construct a computerized human lung model (or atlas) to help detect abnormal lung structural changes.
Details
- Title: Subtitle
- 3D intersubject warping and registration of pulmonary CT images for a human lung model
- Creators
- Baojun Li - University of IowaGary E Christensen - University of IowaJohn Dill - University of IowaEric A Hoffman - University of IowaJoseph M Reinhardt - University of Iowa
- Resource Type
- Conference proceeding
- Publication Details
- Proceedings of SPIE, Vol.4683(1), pp.324-335
- Conference
- Medical Imaging 2002: Physiology and Function from Multidimensional Images
- DOI
- 10.1117/12.463598
- ISSN
- 0277-786X
- Language
- English
- Date published
- 04/22/2002
- Academic Unit
- Electrical and Computer Engineering; Roy J. Carver Department of Biomedical Engineering; Internal Medicine; Radiology; Radiation Oncology; Radiation Research Laboratory; The Iowa Institute for Biomedical Imaging; Advanced Pulmonary Physiomic Imaging Laboratory; Holden Comprehensive Cancer Center
- Record Identifier
- 9984197121002771
Metrics
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