Mora Patricia, Khoury Helen, Bitelli Regina, Quintero Ana Rosa, Garay Fernando, Aguilar Juan García, Gamarra Mirtha, Ubeda Carlos
Centro de Investigación en Ciencias Atómicas, Nucleares y Moleculares, University of Costa Rica, San Pedro, San José, Costa Rica.
Universidade Federal de Pernambuco, Recife, Brazil.
Radiat Prot Dosimetry. 2017 Apr 20;174(1):94-101. doi: 10.1093/rpd/ncw049.
Under International Atomic Energy Agency regional programme TSA3 Radiological Protection of Patients in Medical Exposures, Latin American countries evaluated the image quality and glandular doses for digital mammography equipment with the purpose of seeing the performance and compliance with international recommendations. Totally, 24 institutions participated from Brazil, Chile, Costa Rica, El Salvador, Mexico, Paraguay and Venezuela. Signal difference noise ratio results showed for CR poor compliance with tolerances; better results were obtained for full-field digital mammography equipment. Mean glandular dose results showed that the majority of units have values below the acceptable dose levels. This joint Latin American project identified common problems: difficulty in working with digital images and lack of specific training by medical physicists from the region. Image quality is a main issue not being satisfied in accordance with international recommendations; optimisation processes in which the doses are increased should be very carefully done in order to improve early detection of any cancer signs.
在国际原子能机构区域项目TSA3“医疗照射中患者的放射防护”下，拉丁美洲国家对数字乳腺摄影设备的图像质量和腺体剂量进行了评估，目的是了解其性能并查看是否符合国际建议。共有来自巴西、智利、哥斯达黎加、萨尔瓦多、墨西哥、巴拉圭和委内瑞拉的24家机构参与。信号差异噪声比结果显示，计算机X线摄影（CR）的耐受性较差；全场数字乳腺摄影设备的结果更好。平均腺体剂量结果表明，大多数设备的值低于可接受剂量水平。这个拉丁美洲联合项目发现了一些共同问题：处理数字图像存在困难，且该地区的医学物理学家缺乏专业培训。图像质量是一个主要问题，尚未达到国际建议的要求；在为改善任何癌症迹象的早期检测而增加剂量的优化过程中，应非常谨慎地进行。
