Grading of equine mitral valve insufficiency by colour flow doppler echocardiography
نویسندگان
چکیده
منابع مشابه
Automated cardiac flow measurement by digital colour Doppler echocardiography.
In the 1980s, the development of Doppler echocardiography, especially pulsed wave Doppler techniques, provided significant progress in determining cardiac flow volumes. The pulsed wave Doppler method is based on a simple mathematical principle, which multiplies a flow area by its velocity during the flow time (velocity–time integral) to estimate a flow volume. This Doppler method assumes a spat...
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Doppler echocardiography is widely used for functional assessment of heart valves such as mitral valve. In current clinical work flow, to extract Doppler measurements, the envelopes of acquired Doppler spectra are manually traced. We propose a robust algorithm for automatically tracing the envelopes of mitral valve inflow Doppler spectra, which exhibit a large amount of variations in envelope s...
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The evaluation and care of patients with mitral regurgitation would be facilitated by an easy, reproducible and noninvasive method that could quantitate the hemodynamic burden. In this study, we describe a new Doppler echocardiographic method that measures the regurgitant fraction and we compare it with angiographic and scintigraphic methods. A total of 27 patients with mitral regurgitation wer...
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ژورنال
عنوان ژورنال: Pferdeheilkunde Equine Medicine
سال: 1998
ISSN: 0177-7726
DOI: 10.21836/pem19980404