Geometric comparison of the mitral and tricuspid valve annulus:Insights from three dimensional transesophageal echocardiography

作     者：Amgad N Makaryus Haisam Ismail John N Makaryus Dali Fan 

作者机构：Hofstra Northwell School of MedicineDepartment of CardiologyNorth Shore University HospitalManhassetNY 11030United States Department of CardiologyNuHealthNassau University Medical CenterEast MeadowNY 11554United States Department of MedicineDivision of CardiologyUniversity of CaliforniaDavisCA 95616United States 

出 版 物：《World Journal of Cardiology》 (世界心脏病学杂志（英文版）（电子版）)

年 卷 期：2017年第9卷第9期

页      面：757-760页

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 08[工学] 1010[医学-医学技术（可授医学、理学学位）] 10[医学] 

主　　题：Mitral valve annulus Tricuspid valve annulus Three dimensional imaging Real time three-dimensional transesophageal echocardiography 

摘      要：AIM To apply real time three-dimensional transesophageal echocardiography(RT3D TEE) for quantitative and qualitative assessment of the mitral valve annulus(MVA) and tricuspid valve annulus(TVA) in the same *** Our retrospective cohort study examined the MVA and TVA in 49 patients by RT3 D TEE. MVA and TVA shape were examined by TEE. The MVA and TVA volume data set images were acquired in the mid esophageal 4-chamber view. The MVA and TVA were acquired separately, with optimization of each for the highest frame rate and image quality. The 3D shape of the annuli was reconstructed using the Philips~? Q lab, MVQ ver. 6.0 MVA model software. The end-systolic frame was used. The parameters measured and compared were annular area, circumference, high-low distances(height), anterolateralposterolateral(ALPM), and anteroposterior(AP) axes. RESULTS A total of 49 patients(mean age 61 ± 14 years, 45% males) were studied. The ALPM and the AP axes of the MVA and TVA are not significantly different. The ALPM axis of the MVA was 37.9 ± 6.4 mm and 38.0 ± 5.6 mm for the TVA(P = 0.70). The AP axis of the MVA was 34.8 ± 5.7 mm and 34.9 ± 6.2 mm for the TVA(P = 0.90). The MVA and the TVA had similar circumference and area. The circumference of the MVA was 127.9 ± 16.8 mm and 125.92 ± 16.12 mm for the TVA(P = 0.23). The area of the MVA was 1103.7 ± 307.8 mm^2 and 1131.7 ± 302.0 mm^2 for the TVA(P = 0.41). The MVA and TVA are similar oval structures, but with significantly different heights. The ALPM/AP ratio for the MVA was 1.08 ± 0.33 and 1.09 ± 0.28 for the TVA(P 0.001). The height for the MVA and TVA was 9.23 ± 2.11 mm and 4.37 ± 1.48 mm, respectively(P 0.0001). CONCLUSION RT3 D TEE plays an unprecedented role in the management of valvular heart disease. The specific and exclusive shape of the MVA and TVA was revealed in our study of patients studied. Moreover, the intricate codependence of the MVA and the TVA depends on their distinctive shapes. This realization seen f