Conference proceeding
Automatic bone-free rendering of cerebral aneurysms via 3D CTA
Proceedings of SPIE, Vol.4322(1), pp.1264-1272
Medical Imaging 2001: Image Processing
07/03/2001
DOI: 10.1117/12.431004
Abstract
3D computed tomographic angiography (3D-CTA) has been described as an alternative to digital subtraction angiography (DSA) in the clinical evaluation of cerebrovascular diseases. A bone-free rendition of 3D-CTA facilitates a quick and accurate clinical evaluation of the disease. We propose a new bone removal process that is accomplished in three sequential steps - (1) primary delineation and removal of bones, (2) removing the effect of partial voluming around bone surfaces, and (3) removal of thin bones around nose, mouth and eyes. The bone removed image of vasculature and aneurysms is rendered via maximum intensity projection (MIP). The method has been tested on 10 patients' 3D-CTA images acquired on a general Electric Hi-Speed Spiral CT Scanner. The algorithm successfully subtracted bone showing the cerebral vasculature in all 10 patients' data. The method allows for a unique analysis of 3D-CTA data for near automatic removal of bones. This greatly reduces the need for manual removal of bones that is currently utilized and greatly facilitates the visualization of the anatomy of vascular lesions.
Details
- Title: Subtitle
- Automatic bone-free rendering of cerebral aneurysms via 3D CTA
- Creators
- Punam K Saha - Univ. of Pennsylvania (USA)John M Abrahams - Hospital of the Univ. of Pennsylvania (USA)Jayaram K Udupa - Univ. of Pennsylvania (USA)
- Resource Type
- Conference proceeding
- Publication Details
- Proceedings of SPIE, Vol.4322(1), pp.1264-1272
- Conference
- Medical Imaging 2001: Image Processing
- DOI
- 10.1117/12.431004
- ISSN
- 0277-786X
- Language
- English
- Date published
- 07/03/2001
- Academic Unit
- Electrical and Computer Engineering; Radiology
- Record Identifier
- 9984051712902771
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