CT imaging post-TAVI: Murphy's first law in action-preparing to recognize the unexpected

Area of Science:

• Cardiology
• Radiology
• Medical Imaging

Background:

• Transfemoral aortic valve implantation (TAVI) is a standard treatment for severe aortic stenosis, increasingly used in intermediate-risk patients.
• Potential long-term complications of TAVI may be more significant in younger patients, necessitating a focus on early detection and management.
• ECG-triggered multidetector computed tomography angiography (CTA) is essential for pre-procedural planning and post-TAVI complication assessment.

Purpose of the Study:

• To review the main post-procedural complications of TAVI with a specific focus on imaging.
• To describe the technical aspects, clinical applications, and challenges of CTA in post-TAVI assessment.
• To highlight the role of CTA in the early diagnosis and management of TAVI complications.

Main Methods:

• Review of literature on TAVI complications and their imaging features on CTA.
• Detailed discussion of CTA technical settings and interpretation for post-TAVI evaluation.
• Analysis of CTA's role in identifying valve issues, stent placement, and aortic root integrity.

Main Results:

• CTA provides detailed morphological analysis of the valve and its movement throughout the cardiac cycle.
• CTA precisely evaluates stent position, coronary artery origins, and aortic root integrity.
• Accurate CTA interpretation requires knowledge of valve types, normal post-procedural findings, and potential complications.

Conclusions:

• Prompt recognition of TAVI complications is crucial for optimal patient care.
• Adherence to and optimization of CTA scanning protocols are essential for reliable diagnosis.
• CTA serves as a critical tool for diagnosing TAVI complications and guiding subsequent treatment decisions.