Linked Life Data

3310091

Source:http://linkedlifedata.com/resource/pubmed/id/3310091

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1987-11-18
pubmed:abstractText
Three test objects simulating different mammographic problems were imaged with a new low-dose dual-screen-dual-emulsion-film combination and a standard screen film combination, with and without a moving grid, at 28 and 32 kVp, and with 0.3- and 0.5-mm focal spots. The new combination reduced exposure by 50%, but it failed to equal the other combination in the depiction of simulated microcalcifications, even when a different brand of film-processing chemicals was used. Compared with the standard screen-film combination exposed without a grid, the new combination exposed with a grid resulted in a superior image of dense parenchyma without an increase in dose. Furthermore, when the exposure time was decreased by 25% (rather than 50%), dense breasts were imaged with greater penetration by the new combination. A clinical trial of the new combination in 200 patients showed prominent quantum mottle and reduced contrast in regions of dense parenchyma. In addition, the skin and subcutaneous tissue were often poorly depicted with both standard and high-intensity illumination.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0033-8419
pubmed:author
pubmed:issnType
Print
pubmed:volume
165
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
313-8
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Mammographic dual-screen-dual-emulsion-film combination: visibility of simulated microcalcifications and effect on image contrast.
pubmed:affiliation
Department of Radiological Sciences, UCLA School of Medicine 90024.
pubmed:publicationType
Journal Article, Clinical Trial