High-quality 3-D coronary artery imaging on an interventional C-arm x-ray system.
Med Phys
; 37(4): 1601-9, 2010 Apr.
Article
em En
| MEDLINE
| ID: mdl-20443481
ABSTRACT
PURPOSE:
Three-dimensional (3-D) reconstruction of the coronary arteries during a cardiac catheter-based intervention can be performed from a C-arm based rotational x-ray angiography sequence. It can support the diagnosis of coronary artery disease, treatment planning, and intervention guidance. 3-D reconstruction also enables quantitative vessel analysis, including vessel dynamics from a time-series of reconstructions.METHODS:
The strong angular undersampling and motion effects present in gated cardiac reconstruction necessitate the development of special reconstruction methods. This contribution presents a fully automatic method for creating high-quality coronary artery reconstructions. It employs a sparseness-prior based iterative reconstruction technique in combination with projection-based motion compensation.RESULTS:
The method is tested on a dynamic software phantom, assessing reconstruction accuracy with respect to vessel radii and attenuation coefficients. Reconstructions from clinical cases are presented, displaying high contrast, sharpness, and level of detail.CONCLUSIONS:
The presented method enables high-quality 3-D coronary artery imaging on an interventional C-arm system.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Radiologia Intervencionista
/
Vasos Coronários
/
Imageamento Tridimensional
Tipo de estudo:
Diagnostic_studies
/
Guideline
Limite:
Humans
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article