Stenotic lesions.
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Aortic Valve Stenosis↗
Biomedical subjects
F Flachskampf
Publications and source records attributed to F Flachskampf.
Recent progress in quantitative echocardiography.
Substantial progress has been made recently in quantitating a variety of functional or morphologic parameters with echocardiography. Doppler techniques for measuring regurgitant flow rate and regurgitant orifice area in mitral and tricuspid regurgitation have become well established, along with other Doppler measures of regurgitation severity, such as proximal jet width. Doppler measurement of diastolic flow propagation in the left ventricle is emerging as a promising, albeit fascinatingly complex way of looking at diastolic function. Doppler velocimetry has been extended to wall motion, yielding color maps of tissue, an entirely new tool for assessing myocardial function and its timing. In the field of two-dimensional data processing, automatic on-line boundary detection based on integrated ultrasound backscatter has been used for volume and cardiac output calculations. Finally, three-dimensional reconstruction of cross-sectional images now has been well validated for in vivo measurements of heart cavity volumes and masses.
Blood Flow Velocity↗
[Quality assurance in echocardiography].
Echocardiography is the most important noninvasive diagnostic tool for the cardiologist. More than 617.000 two-dimensional echo examinations and 425.000 color coded Doppler analyses were performed in 1992 in the Federal Republic of Germany in private practice. Based on a questionnaire, more than 60% of the departments of cardiology perform echocardiograms in more than 3000 pts per year, and the amount of TEE examinations is in the range 5-15% of the total annual echo performance rate. In more than 80% of all examinations color coded Doppler is used. With regard to the guidelines for performing the different echo modalities the German recommendations are stringent in comparison with the international standard. Due to the fact that an echocardiographic examination is strongly investigator dependent, the primary goal of quality management should be focused on training.
Cardiology↗