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Improved Registration of 3D CT Angiography with X-ray Fluoroscopy for Image Fusion During Transcatheter Aortic Valve Implantation
Published on: June 3, 2018
Computed tomography angiography for transcatheter aortic valve replacement
Nicole Wake1, Kanako Kumamaru, Richard Prior
1Applied Imaging Science Laboratory at Brigham and Women's Hospital in Boston, Massachusetts, USA.
Insights
Computed tomography (CT) technologists play a vital role in planning transcatheter aortic valve replacement (TAVR). Meticulous CT image acquisition and postprocessing are essential for successful TAVR outcomes.
Area of Science:
- Radiology
- Cardiovascular Imaging
- Medical Technology
Background:
- Transcatheter aortic valve replacement (TAVR) is a key alternative for severe aortic stenosis patients unsuitable for surgery.
- CT technologists are crucial for TAVR patient care.
- Complexities in CT acquisition and postprocessing for TAVR demand specialized technologist knowledge.
Purpose of the Study:
- To detail CT angiography acquisition and postprocessing for TAVR screening from a CT technologist's perspective.
- To provide insights from a single institution's workflow.
Main Methods:
- Detailed description of CT angiography acquisition protocols.
- Explanation of image postprocessing steps for TAVR planning.
- Focus on the technologist's role and responsibilities.
Main Results:
- Identification of critical imaging parameters for TAVR planning.
- Highlighting potential challenges and pitfalls in the CT workflow.
- Emphasis on the importance of standardized imaging approaches.
Conclusions:
- CT image acquisition and postprocessing are fundamental for successful TAVR interventions.
- A detailed, standardized imaging strategy is clinically essential for TAVR patients.
- Attention to clinical detail, protocols, and workflow factors ensures optimal patient outcomes.
Background:
Transcatheter aortic valve replacement (TAVR) is an established alternative to surgery for patients with severe, symptomatic aortic stenosis who are not suitable candidates for surgical replacement of the aortic valve. The computed tomography (CT) technologist has a critical role in the care of patients undergoing TAVR. Because image acquisition and postprocessing for TAVR planning are highly complex, it is important for CT technologists involved in the planning to understand clinical detail, protocols, potential pitfalls, and factors that may influence workflow.
Purpose:
To describe, from the CT technologist's point of view, the details of CT angiography acquisition and postprocessing at 1 institution for patients being screened for TAVR.
Discussion:
For TAVR patients, CT image acquisition and postprocessing is essential for a successful intervention. It is clinically essential to maintain and execute a detailed, standardized imaging approach.
Conclusion:
TAVR planning is among the most complex procedures in radiology. For these patients, meticulous image acquisition and image postprocessing protocols are paramount, and successful patient outcomes depend on attention to clinical detail, protocols, potential pitfalls, and factors that may influence workflow.
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