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Updated: Jun 19, 2026

Improved Registration of 3D CT Angiography with X-ray Fluoroscopy for Image Fusion During Transcatheter Aortic Valve Implantation
Published on: June 3, 2018
Coronary artery bypass using only computed tomography as pre-operative angiogram.
Diego Felipe Gaia1, José Honório Palma, João Nelson Rodrigues Branco
1Universidade Federal de São Paulo, Rua Botucatu 740, São Paulo, SP, Brasil. drgaia@uol.com.br
Computed tomography angiography (CTA) offers a non-invasive alternative for pre-operative coronary artery evaluation before coronary artery bypass graft (CABG) surgery. This report details two successful CABG cases utilizing CTA exclusively for pre-operative coronary artery assessment.
Area of Science:
- Cardiovascular Imaging
- Interventional Cardiology
- Surgical Planning
Background:
- Coronary artery bypass graft (CABG) is a standard surgical procedure for coronary artery disease.
- Coronary angiography is the traditional invasive method for pre-operative evaluation.
- Advancements in imaging aim to provide less invasive alternatives.
Observation:
- Computed tomography angiography (CTA) is an emerging non-invasive imaging technique.
- CTA can visualize coronary artery anatomy with high resolution.
- This study explores CTA's utility as a sole pre-operative tool.
Findings:
- Two cases of CABG are presented where CTA was the only pre-operative coronary artery assessment method used.
- The pre-operative CTA accurately depicted coronary artery anatomy relevant for surgical planning.
- Both patients underwent successful CABG based on CTA findings.
Implications:
- CTA may serve as a viable non-invasive alternative to invasive coronary angiography for pre-operative CABG planning.
- Wider adoption of CTA could reduce risks associated with invasive procedures.
- Further research is warranted to establish CTA's role in routine pre-operative cardiac surgical assessment.
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