A specialty concerned with the use of x-ray and other forms of radiant energy in the diagnosis and treatment of disease.
D013038
Specialization
An occupation limited in scope to a subsection of a broader field.
Specialism,Specialists,Specialist
D014465
Ultrasonics
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.