Multidetector computed tomography in transcatheter aortic valve implantation

Area of Science:

• Cardiology
• Radiology
• Medical Imaging

Background:

• Aortic stenosis is a prevalent condition requiring intervention for symptomatic patients.
• Surgical aortic valve replacement is contraindicated in many high-risk individuals.
• Transcatheter aortic valve implantation (TAVI) has emerged as a critical treatment for these patients.

Purpose of the Study:

• To review the evolving role of CT angiography in TAVI programs.
• To provide a practical guide for utilizing CT in TAVI patient selection and procedural planning.
• To highlight CT's importance in assessing aortic root anatomy and iliofemoral access.

Main Methods:

• Multidetector computed tomography (CT) for detailed anatomic assessment of the aortic root and valve annulus.
• CT evaluation of iliofemoral access suitability.
• CT-based determination of optimal coaxial angles for valve implantation.

Main Results:

• CT provides essential data for patient selection and procedural success in TAVI.
• CT enables precise measurements for optimal device sizing and placement.
• CT aids in understanding medium-term valve durability and integrity.

Conclusions:

• CT angiography is indispensable for modern TAVI programs.
• CT enhances patient selection, procedural planning, and execution of TAVI.
• CT contributes to improved patient outcomes and understanding of TAVI device performance.