Physics of Ultrasound
by
Dr. Z. Gooding
It is to the advantage of the ARDMS candidates to approach the study of PHYSICS in the context of ULTRASOUND bearing in mind the following points:
1. Physics is simply a BASIC SCIENCE, which unlike MATHEMATICS is not an EXACT SCIENCE. However, as a science, PHYSICS borrows mathematical TERMS to explain and quantify the occurrence of natural PHENOMENA (pl. of phenomenon);
2. Physics, as a science, has its own "language" (TERMINOLOGY), that ARDMS candidates need to be acquainted with, in order to understand the way ULTRASOUND works;
3. Physics also obeys some well-known natural (universal) LAWS and therefore can be "put" into EQUATIONS that are easily "quantifiable";
4. Physics explains the inherent CHARACTERISTICS of ultrasound and hence the "behavior" of SOUND WAVES in a given "environment" (MEDIUM) (body organs);
5. Once acquainted with the PHYSICS of SOUND WAVES, ARDMS candidates will be able to comprehend how these WAVES can be used as a DIAGNOSTIC tool.
6. Finally ARDMS candidates must keep in mind that a clear definition of each term used in this review is the key to understanding the PHYSICS of ULTRASOUND and passing the ARDMS BOARDS, which brings us to the next chapter devoted to the TERMINOLOGY per se.
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