Radiation levels and image quality in patients undergoing chest X-ray examinations

被引：2

作者：

Campos de Oliveira, Paulo Marcio ^{[1
]}

Santana, Priscila do Carmo ^{[1
]}

de Sousa Lacerda, Marco Aurelio ^{[2
]}

da Silva, Teogenes Augusto ^{[2
,3
]}

机构：

[1] Fed Univ Minas Gerais UFMG, Anat & Image Dept, Av Prof Alfredo Balena 190, BR-30130100 Belo Horizonte, MG, Brazil

[2] Dev Ctr Nucl Technol CDTN CNEN, Av Presidente Antonio Carlos,6627 Campus UFMG, BR-31270901 Belo Horizonte, MG, Brazil

[3] Fed Univ Minas Gerais UFMG, Postgrad Program Nucl Sci & Tech, Av Presidente Antonio Carlos,6627,Campus UFMG, BR-31270901 Belo Horizonte, MG, Brazil

来源：

RADIATION PHYSICS AND CHEMISTRY | 2017年 / 140卷

关键词：

Patient dosimetry; Image quality; X-ray chest examination; Radiation protection; DOSE MEASUREMENTS;

D O I：

10.1016/j.radphyschem.2016.12.016

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Patient dose monitoring for different radiographic procedures has been used as a parameter to evaluate the performance of radiology services; skin entrance absorbed dose values for each type of examination were internationally established and recommended aiming patient protection. In this work, a methodology for dose evaluation was applied to three diagnostic services: one with a conventional film and two with digital computerized radiography processing techniques. The x-ray beam parameters were selected and "doses" (specifically the entrance surface and incident air kerma) were evaluated based on images approved in European criteria during postero-interior (PA) and lateral (TAT) incidences. Data were collected from 200 patients related to 200 PA and 100 TAT incidences. Results showed that doses distributions in the three diagnostic services were very different; the best relation between dose and image quality was found in the institution with the chemical film processing. This work contributed for disseminating the radiation protection culture by emphasizing the need of a continuous dose reduction without losing the quality of the diagnostic image.

引用

页码：305 / 308

页数：4

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