Practical considerations for optimizing cardiac computed tomography protocols for comprehensive acquisition prior to...

Area of Science:

• Cardiovascular Imaging
• Interventional Cardiology

Background:

• Transcatheter aortic valve replacement (TAVR) is a common procedure for severe aortic stenosis in high-risk patients.
• Computed tomography angiography (CTA) is essential for pre-TAVR assessment.
• Traditional coronary CTA protocols are not ideal for pre-TAVR evaluations.

Purpose of the Study:

• To review methods for tailoring CTA protocols for pre-TAVR assessment.
• To optimize image quality while reducing iodinated contrast volume.
• To address the specific needs of TAVR patients, particularly those with chronic kidney disease.

Main Methods:

• Review of existing CTA protocols and their adaptation for pre-TAVR.
• Consideration of patient-specific factors (e.g., kidney function).
• Analysis of scanner variables impacting image acquisition and contrast dose.

Main Results:

• Customized CTA protocols can enhance pre-TAVR anatomical and vascular access assessment.
• Optimized protocols allow for significant reduction in iodinated contrast volume.
• Tailored approaches improve safety and efficacy in TAVR patient imaging.

Conclusions:

• Physicians can customize CTA protocols to balance image quality and contrast reduction for TAVR.
• Protocol optimization is vital for managing TAVR patients, especially those with renal impairment.
• Personalized CTA protocols are key to minimizing harm and maximizing benefits in pre-TAVR imaging.