Medical exposures with ionizing radiation are the main source of exposure to artificial radiation at a global level. This is due to the significant increase use of high doses procedures, particularly computed tomography (CT) [1]. According to the International Commission on Radiological Protection (ICRP), limits of dose for individual patients should not be used, and optimizing protection to radiation dose to patient must be done by means of Diagnostic Reference Levels (DRLs). DRLs are numerical values of some dose indicator, which depends on the modality...

Implementation of a radiation dose-monitoring program for patients undergoing CT exams and establishment of DRL values The first step for implementing the program was the review of all CT protocols, deleting protocols that were duplicated, unused, and ambiguous. Then, all the remaining protocols were arranged on a set of Master Protocols on the Radiation Dose monitoring platform (Radimetrics®, Bayer). Master Protocols were also homologated to RadLex Playbook index (RPID, RSNA)). The use of RPID codes simplify the process of comparing typical or local calculated DRLs...

We establish DRL values for the most important CT protocols performed at Clinica Alemana. This DRL values will be used as a guide for operators to help in the process of parameter selection when acquiring CT images. For those protocols in which we compared to available data, all our DRL values are below the published values. It must be noticed that having lower or similar DRLs values than big studies does not necessary mean that radiological practice is been done in a correct way. Image...

Daniella Fabri, PhD Medical Phisycist Department of Radiology -Clinica Alemana de Santiago Facultad de Medicina - Universidad del Desarrollo Pablo Soffia, MD ChairmanDepartment of Radiology -Clinica Alemana de Santiago Facultad de Medicina -Universidad del Desarrollo Javiera Sanguesa Radiographer, CT Specialist Department of Radiology -Clinica Alemana de Santiago Facultad de Medicina -Universidad del Desarrollo Ricardo Castillo Vicechair, Clinical Technology Department of Radiology -Clinica Alemana de Santiago Facultad de Medicina -Universidad del Desarrollo

National Council on Radiation Protection and Measurements (NCRP) ,Ionizing Radiation Exposure of the Population of the United StatesNCRP REPORT No. 160, March 3, 2009 International Commission on Radiation Protection (ICRP). The 2017 Diagnostic reference levels in medical imaging. ICRP Publication 135. Ann. ICRP 46(1). Kanal KM,Butler PF, Sengupta D, Bhargavan-Chatfield M, Coombs LP, Morin RL1 U.S. Diagnostic Reference Levels and Achievable Doses for10 Adult CT Examinations.Radiology. 2017 Jul;284(1):120-133