Design and Construction of a Blood Flow Detector Probe for Medical Application
In medical application, ultrasound is extensively used as a diagnostic tool. There is a wide range of medical instruments which are used in this field from simple fetal phones to very sophisticated imaging systems. The main advantage of ultrasound when applied to diagnostic is that it is non-invasive. In Cardiology, the ultrasonic Doppler detector is a very useful instrument to monitor blood flow, this detector measures the blood velocity in veins and arteries. These measurements provide information about the presence of stenosis and obstruction in arteries. Stenosis is a disease that affects blood flow velocity and pressure producing turbulence, due to this the velocity profile changes modifying the frequency spectrum of the signal, these changes determine the stenosis level.
KeywordsDoppler Signal Ultrasonic Transducer Blood Flow Signal Piezoelectric Disc Blood Flow Detection
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- 3.Gosling, R.G. and King, D.H. in“Ultrasonic angiography in arteries and veins ”, (Eds. A.W. Hascus and L. Adamson). Edinburgh, pp 61–98, 1975Google Scholar
- 8.Evans D. H, McDicken W.N. “Doppler Ultrasound, Physics, Instrumentation and Signal Processing ”, John Wiley & Sons, LTD. Second Edition, pp 101–104, 2000.Google Scholar