Three-dimensional echocardiography of colour Doppler flow
نویسندگان
چکیده
منابع مشابه
Three dimensional colour Doppler echocardiography for the characterisation and quantification of cardiac flow events.
The accurate non-invasive quantification of cardiac flow volumes is an important goal in clinical cardiology. Computation of laminar volume flow through the ventricular outflow tracts would allow direct measurement of stroke volume and cardiac output. Grading of valvar regurgitation and follow up of patients with regurgitant lesions may be more accurately performed through calculation of regurg...
متن کاملAutomated 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...
متن کاملFeasibility study for real time three dimensional Doppler intracardiac echocardiography.
Using catheter-mounted two-dimensional array transducers, we have obtained real-time three-dimensional color flow and spectral Doppler ultrasound images in phantoms. We have constructed several transducers operating at 5 MHz with up to 137 channels inside a 12 French catheter lumen. The transducer configuration may be side scanning or beveled with respect to the long axis of the catheter lumen....
متن کاملDiagnosis of double aortic arch by cross sectional echocardiography with Doppler colour flow mapping.
A case of double aortic arch in a 15 month old boy was diagnosed by cross sectional echocardiography supplemented by Doppler colour flow mapping. These examinations showed two very large vessels communicating with the aorta; the demonstration of anterograde flow in one vessel and retrograde flow in the other enabled a definite diagnosis of Edwards type IA double aortic arch to be made.
متن کاملThree Dimensional Colour Pickers
Colours are three dimensional data. However, all commercial colour pickers project three-dimensional (3-D) colour spaces into two dimensional (2-D) palettes. The projection often results in a set of colours perceptually inappropriate to describe the data they present. This paper initially compares several popular 2-D colour pickers and then describes some novel colour pickers which allow colour...
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ژورنال
عنوان ژورنال: Archives of Cardiovascular Diseases
سال: 2010
ISSN: 1875-2136
DOI: 10.1016/j.acvd.2010.01.007