Digital analysis of transmitral color Doppler M-mode data: a potential new approach to the noninvasive assessment of diastolic function

Color Doppler-M is an echocardiographic technique which reports blood velocity along a single echocardiographic scan line at <1 mm intervals, updated every 4 to 8 ms. To investigate regional ventricular pressure gradients associated with diastolic relaxation, the authors have designed a computer...

Full description

Saved in:
Bibliographic Details
Published inProceedings Computers in Cardiology pp. 631 - 634
Main Authors Thomas, J.D., Greenberg, N.L., Vandervoort, P.M., Aghassi, D.S., Hunt, B.F.
Format Conference Proceeding
LanguageEnglish
Published IEEE Comput. Soc. Press 1992
Subjects
Blood
Color
Delay
Echocardiography
Equations
Filling
Pulse measurements
Spatiotemporal phenomena
Ultrasonic imaging
Valves
Online AccessGet full text

Cover

More Information
Summary:Color Doppler-M is an echocardiographic technique which reports blood velocity along a single echocardiographic scan line at <1 mm intervals, updated every 4 to 8 ms. To investigate regional ventricular pressure gradients associated with diastolic relaxation, the authors have designed a computer system for the processing and analysis of Doppler M-mode representations of blood passing from the left atrium to the ventricle. Data were obtained digitally from a commercial echocardiographic machine with velocity output at 5-b resolution on a 0.67-mm*4-ms spatiotemporal grid. After correcting the velocity for aliasing, data were smoothed by median and Gaussian filtration to remove both random and nonrandom noise. Data extracted included peak velocity, its spatial peak, and the inertial mass of transmitral blood. Availability of these methods should allow the use of color M-mode echocardiography in the clinical and research investigation of ventricular diastolic function.< >
ISBN:9780818635526
0818635525
DOI:10.1109/CIC.1992.269379