ABSTRACT
Introduction: In recent years, diagnostic procedures using ionizing radiation have achieved a great boom, although patients are often unaware of the risks they involve. Objectives: To know how is ionizing radiation perceived by the population attending Clínica Dávila, Department of Radiology (DRCD).Methods: A voluntary and anonymous survey was conducted on patients and / or companions. Results: A total of 330 adults were surveyed. An 57 percent had completed higher education, whereas 7.9 percent had only finished elementary schooling; 78.8 percent had undergone three or more imaging tests. CT examination was considered to pose the highest levels of risk (42.4 percent), followed by Ultrasonography (30.6 percent). Discussion: The survey group was made up of young adults, mostly college graduates, and predominantly female. Surprinsingly enough, considering that obstetric sonography is commonly used during pregnancy, US was ranked second in terms of associated health risks. There is an evident interest in the subject, since 90 percent of responders would like to receive further information.
Introducción: Los procedimientos diagnósticos que usan radiación ionizante están en auge, aunque conllevan riesgos muchas veces desconocidos por los pacientes. Objetivos: Conocer la percepción de la población que acude al Departamento de Radiología de Clínica Dávila (DRCD) sobre la radiación. Material y métodos: Se aplicó una encuesta voluntaria y anónima a pacientes y/o acompañantes. Resultados: Se encuestó a 330 adultos. El 57 por ciento poseía estudios superiores y 7,9 por ciento sólo estudios básicos. El 78,8 por ciento se había efectuado 3 o más estudios radiológicos. La TC fue el examen considerado con mayor riesgo (42,4 por ciento), luego la US (30,6 por ciento). Discusión: El grupo encuestado fueron adultos jóvenes, con estudios superiores en su mayoría y con predominio femenino. Sorprendió que la US se considerara como el segundo examen de mayor riesgo, ya que las mujeres poseen mayor contacto con este estudio durante el embarazo. Hay interés en el tema, porque el 90 por ciento desea recibir información.
Subject(s)
Aged, 80 and over , Attitude to Health , Risk Assessment , Radiography/adverse effects , Data Collection , Diagnostic Imaging/adverse effects , Radiation Dosage , Health Knowledge, Attitudes, Practice , Patient Education as Topic , Social PerceptionABSTRACT
A computed tomography (CT) is a powerful system for the effectively fast and accurate diagnosis. The CT system, therefore, has used substantially and developed for improving the performance over the past decade, resulting in growing concerns over the radiation dose from the CT. Advanced CT techniques, such as a multidetector row CT scanner and dual energy or dual source CT, have led to new clinical applications that could result in further increases of radiation does for both patients and workers. The objective of this study was to review the international guidelines of the shielding requirements for a CT facility required for a new installation or when modifying an existing one. We used Google Search Engine to search the following keywords: computed tomography, CT regulation or shield or protection, dual energy or dual source CT, multidetector CT, CT radiation protection, and regulatory or legislation or regulation CT. In addition, we searched some special websites, that were provided for sources of radiation protection, shielding, and regulation, RSNA, AAPM, FDA, NIH, RCR, ICRP, IRPA, ICRP, IAEA, WHO (See in Table 1 for full explanations of the abbreviations). We finally summarized results of the investigated materials for each country. The shielding requirement of the CT room design was very well documented in the countries of Canada, United States of America, and United Kingdom. The wall thickness of the CT room could be obtained by the iso-exposure contour or the point source method. Most of documents provided by international organizations were explained in importance of radiation reduction in patients and workers. However, there were no directly-related documents of shielding and patient exposure dose for the dual energy CT system. Based international guidelines, the guideline of the CT room shielding and radiation reduction in patients and workers should be specified for all kinds of CT systems, included in the dual energy CT. We proposed some possible strategies in this paper.