Computed Tomography Imaging In The Context Of Transcatheter Aortic Valve Implantation (TAVI) / Transcatheter Aortic Valve Replacement (TAVR)

The imaging volume should include the aortic root, aortic arch and ilio-femoral access.

Imaging of the aortic root should be performed using ECG-synchronized acquisition.

Imaging of the aorta and iliofemoral vessels can be performed without ECG synchronization.

Choice of acquisition mode should be tailored according to available scanner technology.

CT acquisitions should focus on optimization of image quality while in accordance with ALARA principles.

Thin slice collimation and reconstructed slice thickness ≤1 mm for the root and ≤1.5mm for the peripheral vasculature should be obtained and

used.

In patients with an eGFR≥30mL/min/1.73 m² no pre-hydration is required.

In patients with eGFR<30mL/min/1.73 m² reduction of iodinated contrast volume and prehydration may be considered.

Routine use of beta blockade is not recommended.

Beta blocker use may be considered in selected cases and should be used cautiously with careful clinical oversight.

Use of nitroglycerin is contra-indicated.