|
KMID : 0390619990070020169
|
|
Journal of Cardiovascular Ultrasound
1999 Volume.7 No. 2 p.169 ~ p.174
|
|
|
Mitral Annulus Velocity Measured by Pulsed Wave Doppler Tissue Imaging in Healthy Korean People
|
|
Nah Deuk-Young
Park Jong-Hoon
|
|
|
Abstract
|
|
|
Background and Objectives：Mitral annulus velocity measured by Pulsed Wave Doppler Tissue Imaging has been used as method of evaluation of left ventricular diastolic function. However, there are few reports of mitral annulus velocity measured by doppler tissue imaging in healthy normal people. the puopose of this study is to know normal values of mitral annulus velocity in healthy korean people.
Subjectives and Methods：Subjectives were 100 healthy normal korean (men：58 and women：42 average：51±7, range：41-67) without hypertension and heart disease. subjectives were divided three groups according to age, group Ⅰwhich are forties (n＝42), group Ⅱ which are fifties (n＝46), and group Ⅲ which are sixties (n＝14). For measuring the mitral annulus velocities by DTI, we used the 2.5 MHz probe (Sequoia, Accuson) in apical 4 chamber view with the sample volume at the septal portion of the mitral annulus.
Results：Mitral annular velocity in diastole is easily recorded by DTI in all subjectives. mitral annulus E’velocities were significantly decrease with aging (group Ⅰ* 7.5± 1.3 cm/sec, group Ⅱ 5.7±1.3 cm/sec, group Ⅲ 5.1±1.3 cm/sec. *p<0.001 in group Ⅰ vs group Ⅱ and group Ⅰ vs group Ⅲ) and also E’/A’ ratios were significantly decrease with aging (group Ⅰ* 1.0±0.2, group Ⅱ 0.8±0.2, group Ⅲ 0.6±0.2. *p<0.001 in group Ⅰ vs group Ⅱ and group Ⅰ vs group Ⅲ). mitral annulus A’ velocities were increase with aging but has no statistical significance (group Ⅰ 7.8±1.0 cm/sec, group Ⅱ 7.9±1.2 cm/sec, group Ⅲ 8.3±0.8 cm/sec. p＝NS). mitral annulus E’velocities were correlated with age (r＝-0.686, p<0.01>
Conclusion：This results shows that mitral annulus E’velocities and significantly decrease with aging and mitral annulus A’ velocities were increase there are good correlation between mitral annulus E’ velocities and aging.
|
|
|
KEYWORD
|
|
|
Mitral annulus velocity, Doppler tissue imaging
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
  
|
|