Ultrasounds offer many advantages: They are generally painless and do not require needles, injections, or incisions. Patients aren't exposed to ionizing radiation, making the procedure safer than diagnostic techniques such as X-rays and CT scans.Sep 20, 2021
How ultrasound is produced?
Ultrasound waves are produced by a transducer, which can both emit ultrasound waves, as well as detect the ultrasound echoes reflected back. In most cases, the active elements in ultrasound transducers are made of special ceramic crystal materials called piezoelectrics.