Pablo T. Teixeirense1, MD; Rodrigo Modolo2,3, MD; João Felipe B. de Toledo1, MD; Patrick W. Serruys4,5, MD, PhD
1. Irmandade da Santa Casa de Misericórdia de Limeira, Limeira, Brazil; 2. Department of Cardiology, the Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands; 3. Department of Internal Medicine, Cardiology division, University of Campinas (UNI-CAMP), Campinas, Brazil; 4. Department of Cardiology, Imperial College of London, London, United Kingdom; 5. Interventional Medicine and Innovation, National University of Ireland, Galway (NUIG), Galway, Ireland
Figure 1. Pre-procedure (A) and post-procedure (B) aortograms and videodensitometry assessment of regurgitation. The right panels show the colour-coded left ventricular outflow tract (LVOT) with the representation of the regurgitating contrast. Underneath are the time-density curves of the aortic root (red curve) and LVOT (yellow curve). The ratio of these curves represents the result of VD-AR assessment in percentage form. The yellow arrows in panel B show the residual central small regurgitation after closure of the PVL.
Quantitative assessment of regurgitation with videodensitometry is a well validated tool in the setting of transcatheter aortic valve implantation (TAVI). It ...