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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
1
|
| pubmed:dateCreated |
1975-5-29
|
| pubmed:abstractText |
A removable ultrasonic collimator is described. It could be easily attached to a general purpose transducer to improve resolution on ultrasound study of superficial small organs. The collimator is made of a small central focusing lens, 6 mm in diameter, surrounded by air. The air insulates the peripheral portion of the transducer surface. ONLY THE CENTRAL ULTRASONIC BEAM WOULD BE TRANSMITTED THROUGH THE LENS. As a result, the ultrasonic beam is narrowed and the resolution is improved. Draw-back of the collimator is a reduction in the ultrasound intensity. However, it can be compensated for by increasing either the transducer output or system gain.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
Mar
|
| pubmed:issn |
0091-2751
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
3
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
57-9
|
| pubmed:dateRevised |
2000-12-18
|
| pubmed:meshHeading | |
| pubmed:year |
1975
|
| pubmed:articleTitle |
A removable ultrasonic collimator for improving resolution.
|
| pubmed:publicationType |
Journal Article
|