Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2006-7-28
pubmed:abstractText
The aim of this study was to assess the area of surplus X-ray radiation (surplus area) of three image intensifiers (I.I.) of two angiography X-ray units. Surplus area refers to an area surrounded with a circular collimator and effective field of view (FOV). Dose-area product (DAP) was used to measure surplus X-rays. A ratio of surplus area when based on each FOV showed an 8% to 39.3% increase with expansion of FOV, surplus area showed an 18 cm(2) to 95 cm(2) decrease with FOV. When the circular collimator was narrowed to a degree that could be confirmed partially in effective FOV, the rate of surplus area was decreased almost as much as the rate of scattered radiation. Surface dose was almost unchanged. The radiation exposure of the physician as well as that of the patient was reduced by the reduction of surplus area. The DAP meter, while a tool for patient radiation exposure management, is also highly useful for machinery management such as the measurement of surplus area at the I.I. system.
pubmed:language
jpn
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0369-4305
pubmed:author
pubmed:issnType
Print
pubmed:day
20
pubmed:volume
62
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
990-6
pubmed:dateRevised
2011-7-28
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
[Measurement of area of surplus X-ray radiation by dose-area product meter at image intensifier in angiography X-ray units].
pubmed:affiliation
Department of Radiology, Nagoya Daini Red Cross Hospital.
pubmed:publicationType
Journal Article, English Abstract