Journal article
Validation of an accurate method for three-dimensional reconstruction and quantitative assessment of volumes, lengths and diameters of coronary vascular branches and segments from biplane angiographic projections
International journal of cardiac imaging, Vol.15(5), pp.339-53; discussion 355-6
10/01/1999
DOI: 10.1023/A:1006322609072
PMID: 10595401
Abstract
UNLABELLEDThe goal of the study was the validation of an accurate method for three-dimensional reconstruction and quantitative assessment of volumes, lengths and diameters of coronary vascular branches and segments from biplane angiographic projections. METHODSThe accuracy was tested in a complex phantom. In vivo, inter- and intraobserver agreement were assessed by analysis of routine angiograms. The sensitivity was evaluated using angiograms of patients having diagnostic vasoactive pharmacological intervention. Two-dimensional quantitative coronary angiography (2-D QCA) and 3-D QCA were compared concerning the accuracy of diameter evaluation. RESULTS3-D QCA yields accurate results (< 3% error) even based on nonorthogonal views, provided that projections parallel to the object are avoided. The inter- and intraobserver variability is < or = 5%. Significant (p < 0.01) changes of the volume (36-39%) and the diameter (19-21%) are detected following pharmacological intervention. 2-D QCA and 3-D QCA agree in short matched segments without foreshortening. 2-D QCA is rather sensitive to foreshortening and not suitable for evaluation of diameters of longer branches or total coronaries. CONCLUSION3-D QCA permits an accurate, reproducible and sensitive comprehensive three-dimensional geometric analysis of the coronaries and is superior to 2-D QCA with respect to extended diameter evaluation.
Details
- Title: Subtitle
- Validation of an accurate method for three-dimensional reconstruction and quantitative assessment of volumes, lengths and diameters of coronary vascular branches and segments from biplane angiographic projections
- Creators
- E Wellnhofer - Deutsches Herzzentrum der CharitéA Wahle - University of IowaI Mugaragu - Deutsches Herzzentrum der CharitéJ Gross - Deutsches Herzzentrum der CharitéH Oswald - Deutsches Herzzentrum der CharitéE Fleck - Deutsches Herzzentrum der Charité
- Resource Type
- Journal article
- Publication Details
- International journal of cardiac imaging, Vol.15(5), pp.339-53; discussion 355-6
- DOI
- 10.1023/A:1006322609072
- PMID
- 10595401
- ISSN
- 0167-9899
- eISSN
- 1573-0743
- Language
- English
- Date published
- 10/01/1999
- Academic Unit
- Electrical and Computer Engineering; Radiation Oncology; The Iowa Institute for Biomedical Imaging
- Record Identifier
- 9984460340602771
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