Orientation of bileaflet mechanical aortic valve prostheses for optimal evaluation by transthoracic echocardiography Alberto Bouzas-Mosquera, MD, PhD,

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Orientation of bileaflet mechanical aortic valve prostheses for optimal evaluation by transthoracic echocardiography Alberto Bouzas-Mosquera, MD, PhD, Nemesio Álvarez-García, MD The Journal of Thoracic and Cardiovascular Surgery Volume 150, Issue 2, Pages 428-430 (August 2015) DOI: 10.1016/j.jtcvs.2015.03.028 Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

Figure 1 A and C, Schematic parasternal short-axis (A) and long-axis (C) views in systole of a bileaflet mechanical aortic valve prosthesis with the disks (heavy black lines) oriented perpendicularly to the ultrasound beam; acoustic shadowing (gray shaded areas) precludes the adequate visualization of the posterior aortic root. B and D, Short-axis (B) and long-axis (D) views of a mechanical aortic valve prosthesis with the disks oriented parallel to the ultrasound beam; shadowing artifacts are significantly reduced. RCA, Right coronary artery; RV, right ventricle; TV, tricuspid valve; R, right coronary sinus; PV, pulmonary valve; N, noncoronary sinus; L, left coronary sinus; RA, right atrium; IAS, interatrial septum; LCA, left main coronary artery; LA, left atrium; AO, ascending aorta; LV, left ventricle. Courtesy of Luis Míguez-Rodríguez. The Journal of Thoracic and Cardiovascular Surgery 2015 150, 428-430DOI: (10.1016/j.jtcvs.2015.03.028) Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

The Journal of Thoracic and Cardiovascular Surgery 2015 150, 428-430DOI: (10.1016/j.jtcvs.2015.03.028) Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions