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ULTRASOUND
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
Using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs
Synonyms:
echography; sonography; ultrasonography; ultrasound
Classified under:
Nouns denoting acts or actions
Hypernyms ("ultrasound" is a kind of...):
prenatal diagnosis (any of the diagnostic procedures used to determine whether a fetus has a genetic abnormality)
imaging; tomography ((medicine) obtaining pictures of the interior of the body)
Hyponyms (each of the following is a kind of "ultrasound"):
A-scan ultrasonography (the use of ultrasonography to measure the length of the eyeball)
B-scan ultrasonography (the use of ultrasonography to view structure in the back of the eye)
Sense 2
Meaning:
Very high frequency sound; used in ultrasonography
Classified under:
Nouns denoting natural phenomena
Hypernyms ("ultrasound" is a kind of...):
sound (mechanical vibrations transmitted by an elastic medium)
Derivation:
ultrasonic (having frequencies above those of audible sound)
Context examples:
An endoscope with an ultrasound probe and a biopsy needle at the end is inserted through the mouth into the esophagus.
(Endoscopic ultrasound-guided fine needle aspiration, NCI Dictionary)
They include a physical exam, a pelvic exam, lab tests, ultrasound, or a biopsy.
(Ovarian Cancer, NIH: National Cancer Institute)
Ultrasound or a CT scan is used to guide the needle into the tumor.
(Alcohol ablation, NCI Dictionary)
A test that uses high-frequency sound waves (ultrasound) to create an image of the heart.
(Echocardiography, NCI Thesaurus)
Currently, some imaging tools like ultrasound or magnetic resonance imaging can help identify people with fatty livers, but these techniques often provide less detailed information.
(High-Fat, High-Sugar Diet Causes Lasting Harmful Effects on Liver, The Titi Tudorancea Bulletin)
An ultrasound transducer (probe) is pressed firmly against the skin of the abdomen.
(Abdominal ultrasound, NCI Dictionary)
At the frequencies used in adult echocardiography (2-5 MHZ) the microspheres resonate, which further increases the extent of ultrasound scattering and reflection.
(Perflutren Protein-Type A Microspheres, NCI Thesaurus)
The estimated age of a fetus, this can be determined by the first day of the last menstrual cycle of the mother or by fetal measurements obtained by ultrasound.
(Gestational Age Assessment Result, NCI Thesaurus)
An injectable suspension of liposome-encapsuled microspheres containing the fluorocarbon gas perflutren for contrast enhancement in ultrasound procedures.
(Perflutren Lipid Microspheres, NCI Thesaurus)
The gel-filled model (phantom) then undergoes MRI, CT, ultrasound, or radiation therapy, to gauge how effective the same procedure might be for the patient.
(Gel Dosimetry, NCI Thesaurus)
