Interventional Cardiology

Aortic valve replacement

Innova 3D Cardiac for percutaneous aortic valve replacement

Percutaneous valve repair and replacement procedures require a good understanding of the aortic valve and ascending aorta 3D morphology. Bringing this 3D anatomy on the cathlab to do measurements and to chose optimal working views is benefit for this procedures.


Courtesy of Dr. T Lefèvre, Dr. M-C Morice, Dr. B Cormier, ICPS, Massy - France

Patient History

This is a case of a 85 year-old female patient, presenting an Euroscore of 37%.
She suffers from cardiac insufficiency and is referred for a percutaneous valve replacement.

Procedure

For the aortic valve anatomy understanding, an Innova 3D Cardiac acquisition is performed on Innova 2100IQ.
After the beginning of the right ventricular rapid pacing at 200 bpm, 70 ml of contrast media is injected at the flow rate of 14 ml/s.
The 2D projections are sent to the Advantage Workstation and the 3D Volume is automatically reconstructed.
The Volume Rendering and 3D MIP depict clearly the valve anatomy and help to select the angulations of the working views.

Volume Rendering view of aortic valve
 
 
Cross-Section, annulus diameter measurement
 
 
               
Cross-Section, distance from valve plane to <br>LM ostia     Angiogram after the 23 mm Cribier Edwards valve placement    

Oblique cross-sections parallel and perpendicular to valve plane are simultaneously displayed. This allows measurements of the distance to the coronary ostia and the annulus diameter, confirming a size of 21 to 22 mm.
After the placement of an Extra Support guide at the apex, a 23 mm percutaneous Cribier Edwards prosthesis (Edwards Lifesciences, Irvine, CA, USA) is successfully positioned by dilating a 23 mm ZIMED balloon (NuMED, Inc., Hopkinton, NY, USA).

A remaining aortic regurgitation of 2-3 /4 is corrected by post-dilation, allowing to moderate it at 2/4.