A 100 MHz Scanning Laser Acoustic Microscope (SLAM, Sonoscan, Inc. , Bensenville, IL) was connected to a computer so that the acoustic and interference mode images can be digitized and stored in an 482 multiplied by 1514 array. Attenuation coefficients and velocity properties of 28 rat liver specimens are measured. Fatty liver was produced in rats by feeding them alcohol or high fat diets in liquid form. When the SLAM is in the acoustic mode an image of the through transmitted wavefield amplitude is created. When the SLAM is in the interference mode an image of equal phase wavefronts is produced. The measurement data shows that velocity decreases and attenuation increases when the fat concentration increases.
|Original language||English (US)|
|Number of pages||1|
|State||Published - 1984|
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