Abstract
The principle of imaging by ultrasound is well known (Shirley et al. 1978; McDicken 1981). An ultrasound transducer is energised by a short electric pulse which is converted into an ultrasound pulse. This pulse propagates along the line of sight of the transducer with a velocity which is characteristic of the medium. When the pulse strikes an interface some of the energy is reflected, and that portion which returns to the transducer is reconverted into electric form. Being of low magnitude, the echo must be amplified by a receiver before being displayed in its appropriate position on the trace of a display unit, the direction of the trace representing the line of sight of the transducer. A cross–sectional image is obtained by moving the ultrasound line of sight (either by mechanical or electrical means) and having the trace on the display follow synchronously.
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References
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© 1986 Springer-Verlag Berlin Heidelberg
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Kossoff, G. (1986). Physics and Instrumentation in Diagnostic Ultrasound. In: Wittmann, B.K. (eds) Ultrasound Diagnosis in Obstetrics and Gynecology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-70423-9_1
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DOI: https://doi.org/10.1007/978-3-642-70423-9_1
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-70425-3
Online ISBN: 978-3-642-70423-9
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