Optimización de la Protección Radiológica en Procedimientos de Intervencionismo de Angiografía y Fluoroscopía del Hospital de Especialidades Fuerzas Armadas Nº 1 y Elaboración de una Propuesta de Normalización Dosimétrica

Abstract

Optimization of Radiological Protection in Angiography and Fluoroscopy procedures of the Hospital de Especialidades Fuerzas Armadas N° 1 Quito and elaboration of a Dosimetric Standardization Proposal, with the purpose of optimizing them by implementing improvements in the Angiography and Fluoroscopy Imaging Center. Theory on optimization of the International Atomic Energy Agency was applied, quality control tests were performed such as measurement of Nominal Voltage of the X-Ray Tube and dosimetric measurements such as Kerma in Air, Dose-Area Product, Kerma in Entry Surface and Maximum Dose in Entry Surface. They were performed with GMM 45330 Telecommanded Fluoroscope and in Siemens Axion Artis FA 2964522 Angiograph, using PTW Freiburg SFD TW34069 ionization chamber, PTW Unidos E T10009 electrometer, PTW Freiburg TA34028 window chamber, PTW Diamentor E2 T11033 electrometer, PTW Diavolt Universal T43014 multipurpose dosimeter and a water phantom. Quality control tests are within tolerance levels. Dosimetric measurements in Therapeutic Endoscopic Retrograde Endoscopic Cholangiopancreatography yielded the following results, Dose-Area Product 1953 , Standard Patient Entry Surface Dose Rate 26.24 and Maximum Patient Entry Surface Dose Rate 40.52 . In Cinecoronary angiography, a Dose-Area Product value of 3773.30 was obtained, and the Dose Rate on the Entry Surface of a Standard Patient was 64.81. It is concluded that the parameters analyzed in Angiograph and Fluoroscope comply with recommended values, contributing to the Optimization of Radiological Protection to minimize the dose delivered to patients. This research proposes the Dosimetric Standardization, which prevents collateral effects. It is recommended to perform dosimetric tests and quality control prior to performing these analyses.