González-López Nadia A, Parra-Riofrío Katerine M, Batista-Zaldívar Mario A, Carrillo-Vallejo Edison, Yanchapanta-Bastidas Vilma N
Departamento de Física, Instituto de Ciencias Básicas, Universidad Técnica de Manabí, Portoviejo, Ecuador.
Hospital de Especialidades Eugenio Espejo, Pichincha, Quito, Ecuador.
Arch Cardiol Mex. 2021 Nov 1;91(4):415-421. doi: 10.24875/ACM.20000196.
The knowledge of the reference levels for diagnoses and therapeutic studies is important, because it contributes to the optimization of the radiological protection of the patients, avoiding them to be exposed to unnecessarily high doses. However, there was no evidence of these levels in interventionist cardiology procedures in Ecuador, so the objective of this study was to estimate the diagnostic reference levels of dose at the entrance surface in adult patients undergoing interventional cardiology procedures (cinecoronariography, catheterization and coronary percutaneous interventionism) in the Unit of Hemodynamic of the Hospital of Specialties Carlos Andrade Marín in Ecuador.
The measurements of product dose-area, dose in input surface, number of images and the time of fluoroscopy performed using the Axiom Artis angiographer, and the obtained data was tabulated and processed with the Excel computer program. For this study, 145 patients older than 18 years were selected, and the values obtained from diagnostic reference dose levels were compared with others reported in previous investigations and with the permissible limits for the appearance of deterministic effects on the skin.
This study made it possible to establish reference levels for diagnosis in interventional cardiology procedures (coronary angiography, catheterization and percutaneous coronary intervention) in the Hemodynamics Unit of the Carlos Andrade Marín Specialty Hospital in Ecuador.
The results showed that the intake surface doses obtained were lower than the maximum levels recommended by the International Atomic Energy Agency.
了解诊断和治疗研究的参考水平很重要，因为这有助于优化患者的放射防护，避免他们受到不必要的高剂量辐射。然而，在厄瓜多尔的介入心脏病学程序中，尚无这些水平的相关证据。因此，本研究的目的是估计厄瓜多尔卡洛斯·安德拉德·马林专科医院血流动力学科接受介入心脏病学程序（冠状动脉造影、心导管插入术和冠状动脉经皮介入治疗）的成年患者入口表面的剂量诊断参考水平。
使用Axiom Artis血管造影仪测量剂量面积乘积、输入表面剂量、图像数量和透视时间，并将获得的数据用Excel计算机程序制成表格并进行处理。本研究选取了145名18岁以上的患者，并将诊断参考剂量水平获得的值与先前调查中报告的其他值以及皮肤确定性效应出现的允许限值进行比较。
本研究得以在厄瓜多尔卡洛斯·安德拉德·马林专科医院血流动力学科确定介入心脏病学程序（冠状动脉造影、心导管插入术和经皮冠状动脉介入治疗）的诊断参考水平。
结果表明，获得的入口表面剂量低于国际原子能机构推荐的最高水平。
