Fig. 1From: Trans-apical aortic valve implantation for quadricuspid aortic valve with aortic regurgitation using J-valve system: a case reportsEchocardiography showed left ventricular enlargement (Panel A, red star indicated dilated ventricle), quadricuspid aortic valve (Panel B, red arrow indicated four aortic valves, which have been marked numerically), mild aortic stenosis (Panel C, red arrow indicated the hole formed by aortic insufficiency, the area of which is about 0.124cm2) and massive aortic regurgitation (Panel D) of the QAV patientBack to article page