Ultra-sound is essentially many narrow focused sound waves whose reflected attenuation is correlated to the elasticity of the reflecting column. In essence, they are doing the same thing that dolphins do when they are searching for fish.
In civil engineering, many structure probes can be investigated. One can even build reflecting instruments to replace theodolites in survey. In pregnancies, the movement of kid in womb can be seen. It should be interesting to see stethoscope-like toting civil engineers pulsing beams and columns to diagnose their health at that point in time! Just whenmoney from aaqgs-IBE rolls in!
The deep point is that this can be generalized to diagnoses in heart brain, most importantly in cancers since the elasticities of normal and cancerous tissues aredistinct.
Medical Imaging Based on Magnetic Fields and Ultrasounds
Generalization of Multipulse Transmission ... - SAGE Journals
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