ABC | Volume 111, Nº1, July 2018

Arquivos Brasileiros de Cardiologia - Volume 111, Nº 1, July 2018 Image Challenging Evaluation of Aortic Regurgitation: More Than a Quadricuspid Valve Gonçalo Pestana, Carla Sousa, Teresa Pinho, Sara Maia, M. Júlia Maciel .....................................................................................................................................................................page 115 Letter to the Editor Challenges For Percutaneous Left Atrial Appendage Closure: Imaging And Residual Flow Tarik Yildirim, Ibrahim Altun, Mustafa Ozcan Soylu .....................................................................................................................................................................page 117