Credentialing of Diagnostic X-ray Technologists: A question of Public Health Impact.

Abstract: This paper presents estimates of t11,2 number of diagnostic x-ray examinations performed in the United States. the population dose delivered, the percentage of that dose contributed by credentialed and noncredentialed operators, and one measure of performance: collimation of the x-ray beam. An estimated 82 per ¢ of medical x-ray examination:, are performed by voluntarily certified (ARRT or ARCRT) operators. These procedures contribute 90 per ¢ of the radiation dose to the population. Data from the Nationwide Evaluation of X-Ray Trends (NEXT) program indicate that certified operators collimate the x-ray beam somewhat better than noncertified for chest examinations. They also indicate in it difference,; in collimation practices may be attributed to the type of facility as well as to the credentials of the operators. One third of the medical x-ray machines are in states presently requiring licensure of operators. It appears from these estimates that instituting operator licensure in the remaining states may reduce population dose by a maximum of one or two per ¢. (Am J Public Health 1985:75:270-274.) [ABSTRACT FROM AUTHOR]