"Ultrasonics" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
A subfield of acoustics dealing in the radio frequency range higher than acoustic SOUND waves (approximately above 20 kilohertz). Ultrasonic radiation is used therapeutically (DIATHERMY and ULTRASONIC THERAPY) to generate HEAT and to selectively destroy tissues. It is also used in diagnostics, for example, ULTRASONOGRAPHY; ECHOENCEPHALOGRAPHY; and ECHOCARDIOGRAPHY, to visually display echoes received from irradiated tissues.
Below are MeSH descriptors whose meaning is more general than "Ultrasonics".
Below are MeSH descriptors whose meaning is more specific than "Ultrasonics".
This graph shows the total number of publications written about "Ultrasonics" by people in this website by year, and whether "Ultrasonics" was a major or minor topic of these publications.
To see the data from this visualization as text, click here.