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Color Doppler Tissue Imaging in Assessing the Elastic Properties of the Aorta and in Predicting Coronary Artery Disease
- Source :
- Japanese Heart Journal. 43:219-230
- Publication Year :
- 2002
- Publisher :
- International Heart Journal (Japanese Heart Journal), 2002.
-
Abstract
- We hypothesized that the change in aortic elastic properties could directly be shown with color Doppler tissue imaging (CDTI), that these findings could be related to aortic stiffness and distensibility and that, through these, coronary artery disease (CAD) could be predicted. One hundred and twenty six patients (group I: 83 with CAD, mean age 54+/-10 years, 18 female, 65 male; group II: 43 without CAD, mean age 53+/-10 years, 27 female, 16 male) having been evaluated for coronary artery disease by angiography were examined by echocardiography. Arterial pressure was measured immediately before echocardiographic evaluation. Internal aortic systolic and diastolic diameters by M-mode echocardiography and aortic upper wall tissue velocities (Aortic S, E, A, m/sec) by CDTI were measured 3 cm above the aortic valve. Lateral mitral annulus tissue velocities (Annulus S, E, A, m/sec) were also recorded. Aortic distensibility (cm2 x dynes(-1)) and aortic stiffness index were calculated using formulas. In the statistical analyses, CAD risk factors and left ventricular ejection fraction were used for adjustment. Aortic stiffness (2.79+/-3.49 vs 1.62+/-1.31, P=0.03), distensibility (1.55+/-1.46 vs 2.37+/-3.08, P=0.04), and aortic S velocity (0.057+/-0.016 vs 0.064+/-0.015, P=0.02) differed significantly between groups I and II. After adjustment, while aortic stiffness and S velocity were still statistically different (P=0.04; P=0.03 respectively), the significance of the difference in aortic distensibility disappeared (P=0.051). Aortic stiffness and aortic S velocity (0.06 m/sec
- Subjects :
- Aortic valve
medicine.medical_specialty
Aorta
Duplex ultrasonography
Ejection fraction
business.industry
Diastole
medicine.disease
Coronary artery disease
medicine.anatomical_structure
Blood pressure
Internal medicine
medicine.artery
cardiovascular system
medicine
Cardiology
Aortic stiffness
Cardiology and Cardiovascular Medicine
business
Subjects
Details
- ISSN :
- 1348673X and 00214868
- Volume :
- 43
- Database :
- OpenAIRE
- Journal :
- Japanese Heart Journal
- Accession number :
- edsair.doi...........a4874141ffcdd30b1aa32f1c4a2610a1