A phantom based method for deriving typical patient doses from measurements of dose-area product on populations of patients

摘要: One of the chief sources uncertainty in comparison patient dosimetry data is influence size on dose. Dose has been shown to relate closely equivalent diameter patient. This concept used derive a prospective, phantom based method for determining correction factors measurements dose-area product. The derivation factor demonstrated mathematically, and appropriate determined number different X-ray sets. use enables effect be isolated from other influencing derived agree well with those retrospectively dose survey data. Size have applied results large scale survey, this approach compared selecting patients according their weight. For samples data, mean product values are independent analysis used. advantage using that it allows all included whereas selection exclude approximately half patients. Reduction set may lead less reliable indicators typical practice. will particular benefit paediatric where wide range sizes exist, even within accepted age bands.