title: General principles and applications of ultrasound.
abstract: The scope of diagnostic applications of ultrasound is great but differs from that of computed tomography and other noninvasive imaging techniques. Knowledge of general principles of ultrasound can aid in understanding its applications, scanning techniques, and limitations.
mesh_terms: D000006:Abdomen, Acute / Q000175:diagnosis; D002869:Chromosome Aberrations; D003560:Cysts / Q000175:diagnosis; D004452:Echocardiography; D005128:Eye Diseases / Q000175:diagnosis; D006801:Humans; D008297:Male; D008946:Mitral Valve Stenosis / Q000175:diagnosis; D011469:Prostatic Diseases / Q000175:diagnosis; D012611:Scrotum / Q000473:pathology; D013959:Thyroid Diseases / Q000175:diagnosis; D014465:Ultrasonics / Q000009:adverse effects; D014463:Ultrasonography; D001745:Urinary Bladder Diseases / Q000175:diagnosis