Comparison study of three-dimensional transesophageal echocardiography and CT in measuring the size of aortic ring and the height of coronary ostium

Abstract

Objective To investigate the difference between three-dimensional transesophageal echocardiography (3DTEE) and CT in measuring the size of aortic ring and the height of coronary ostium. Methods Fifteen patients were recruited and were treated with the transcatheter aortic valve implantation (TAVI). Routine transthoracic echocardiography,two-dimensional echocardiography (2DTEE),3DTEE and CT examinations were taken preoperatively. Results The minimal diameter,maximum diameter,perimeter,area of the aortic ring measured by 3DTTE showed a close correlation and a strong consistency with those measured by CT .The ostium height of the left and right coronary arteries measured by 3DTEE also showed a close correlation and a strong consistency with those measured by MDCT . Besides,inter-observer and intra-observer reproducibility for 3DTEE measurement data were very good. Conclusions 3DTEE has a high repeatability in evaluating minimal diameter,maximum diameter,perimeter,area of the aortic ring and the height of coronary ostium,which also shows good correlation with those measured by CT. Key words: Echocardiography,transesophageal,real-time three-dimensional; Aortic valve; Heart valve prosthesis implantation