A detailed study of radiation dose and radiographic technique during chest radiography.
Affiliation
Regional Department of Medical Physics and Bioengineering, Christie hospital and Holt Radium Institute, Manchester and *X-ray Department, Burnley General Hospital, Burnley, LancashireIssue Date
1986-03
Metadata
Show full item recordAbstract
The radiation dose to a series of patients referred for chest radiography has been monitored using thermoluminescent dosimetry. The postero-anterior projection was employed throughout the study. Measurements were made in two rooms of the same general hospital. Each room was equipped with automatic exposure control of the air ionisation chamber type. The effect of this equipment on patient exposure was investigated and compared with manual exposure control. In all cases the tube potential (kVp) was selected by the radiographer but tube current (mA) was determined by the generator. Anterior and posterior radiation doses were measured using sachets of lithium fluoride. For each group of patients the anterior exit dose, and therefore all of the radiation dose, was lower when automatic control was used. The standard deviation on the anterior patient dose was lower under automatic control, which resulted in fewer films needing to be repeated due to incorrect film density. Film densities were also investigated using a densitometer, to provide a further comparison between the two types of exposure control.Citation
A detailed study of radiation dose and radiographic technique during chest radiography. 1986, 59 (699):245-9 Br J RadiolJournal
The British Journal of RadiologyDOI
10.1259/0007-1285-59-699-245PubMed ID
3947837Type
ArticleLanguage
enISSN
0007-1285EISSN
1748-880Xae974a485f413a2113503eed53cd6c53
10.1259/0007-1285-59-699-245