PMID: 9173697Feb 1, 1997Paper

Quantitative tissue Doppler echocardiography in comparison with M-mode measurements in healthy probands

Zeitschrift für Kardiologie
T BartelRaimund Erbel

Abstract

Quantitative tissue Doppler echocardiography is a new diagnostic approach to left ventricular systolic performance. The aim of the present study was to validate a recently developed method based on the computer software TDI-Labor enabling a variable time and space related measurement of regional wall velocity from tissue Doppler images. Therefore, in 63 volunteers the mean velocity of a 2 mm thick subendocardial slice during the systolic ejection period was determined from frozen tissue Doppler M-mode images of the left ventricular posterior wall obtained using the left parasternal window. The same images were employed for comparative measurement of the mean endocardial velocity using the conventional M-mode slope approach. Tissue Doppler data of the subendocardial wall velocity were found to correspond closely to the mean endocardial wall velocity (y = 0.97x + 0.17; r = 0.77; p < 0.0001). The average wall motion gradient of the population was 1.33 +/- 0.35. Wall motion velocity and wall motion gradient were shown to be not age dependent. The new software approach to an improved analysis of wall motion offering any sized sample volumes and time intervals for wall velocity measurements can be regarded as an exact and easily feas...Continue Reading

Citations

Jan 24, 2003·Journal of Tongji Medical University = Tong Ji Yi Ke Da Xue Xue Bao·Y WuD J Sahn
Jun 25, 2003·International Journal of Cardiology·Silvana MüllerOtmar Pachinger

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