the application of ultrasound, is also useful for changing the chemical properties of substances at higher power levels. It can be used for imaging, detection, measurement, and cleaning. Ultrasound is used in many different fields. Sonography is also commonly called diagnostic sonography or ultrasonography. Sonography, on the other hand, technically refers to the practice of using the ultrasound frequency to create images inside the body. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz. The limit is generally considered to be 20 kilohertz (20,000 hertz) in healthy, young adults. In a strict technical sense, ultrasound refers to the actual frequency above that which humans can hear. An ultrasound scan may also be referred to as a sonogram, diagnostic sonography, and ultrasonography. The process is called an ultrasound scan, whereas the images are often referred to as sonograms. They are a medical test which uses high frequency sound waves to produce a picture of the organs in the body. In common parlance, ultrasounds and sonograms are essentially synonymous. Key Difference: In common parlance, ultrasounds and sonograms are essentially synonymous.

Ultrasound vs sonogram