001 velocity (cm/s) Mitral isovolumic
75 [+ or -] 19 57 [+ or -] 14 <0.
index: a new noninvasive approach to the assessment of left ventricular function in man.
The timing of end-systole (aortic valve closure) and end-diastole (onset of isovolumic
contraction) of LV were derived using a myocardial tissue velocity profile.
0004 Pearson correlation analysis and linear regression analysis ABI--ankle brachial index, BMI--body mass index, DT--deceleration time, E-A--mitral E and A velocity, EF--ejection fraction, IVRT-- isovolumic
relaxation time, IVS--interventricu-lar septum diameter, LVDD--left ventricular diastolic dimension, LVSD--left ventricular systolic dimension, TAAs--tension arterial of ankle, TABs--tension arterial of brachial
The MPI is defined as the ratio of isovolumic
time (IVRT+IVCT) divided by ejection time (ET).
8 23 98 Fs: Fractional Shortening, EF: Ejection Fraction, E/A ratio: Early rapid filling/Atrial contraction in mitral valve blood flow, EDT: early deceleration time, IVRT: Isovolumic
Relaxation Time (left ventricle) Table 3: Participants' cardiac function Frequency Percent Systolic function Normal 70 87.
relaxation time and isovolumic
contraction time from the basal part of the left ventricle, myocardial rate during the systole, myocardial rate during the erly diastole, the rate during the late diastole, ejection time, isovolumic
contraction acceleration and acceleration of the ventricle at the time of isovolumic
contraction were measured.
Animals in the control and model groups were treated with isovolumic
distilled water instead.
There was a restrictive physiology pattern of the left ventricle, however, with isovolumic
relaxation time of 50 milliseconds, deceleration time of 160 milliseconds, and early to late diastolic filling ratio of 2.
70 (X [+ or -] SD) (cm -- Centimeters) (sec-second) A A wave maximal velocity AFF A trial filling fraction E E wave maximal velocity E/A Maximal E/Maximal A wave velocity Frac Short Fractional Shortening IVRT Isovolumic
relaxation time IVST-d Interventricular Septal Wall Thickness n Diastole LVID-s Left Ventricular Internal Dimensions n Systole LVID-d Left Ventricular Internal Dimensions n Diastole PWT-d Posterior Wall Thickness n Diastole LV MI Left Ventricular Mass Index (Reference 10, published with permission from the authors, the Am Ger J Cardiol and Le Jacq Communications).
Price (15) and Mandelkern (16) introduced a difference of density between the amorphous and crystalline phases, in order to remove the isovolumic
8 in individuals >55 years, DT >220 ms, IRT >100 ms; pseudonormal: 1 < E/A < 2,150 ms < DT < 200 ms, IRT <100 ms; restrictive filling, E/A >2, DT <150 ms, IRT <60 ms, where E is the peak E-wave velocity and A is the peak A-wave velocity of the mitral inflow, DT is the deceleration time of the E wave, and IRT is the left ventricular isovolumic
relaxation time (13).