Diagnostic radiology in Norway trends in examination frequency and collective effective dose
نویسندگان
چکیده
منابع مشابه
Measurement of Entrance Skin Dose and Effective Dose in The most Common Diagnostic radiology Examinations in Jiroft, Iran
Introduction: Medical uses of radiation have grown very rapidly over in the past two decades, medical uses represent the largest source of exposure to people, The most important methods in medical diagnosis are the useses of diagnostic radiology exams. Although the use of these methods is very beneficial for the treatment of patients, but ionizing radiation produces ion pairs, ...
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The patient effective dose, E, is an indicator of the stochastic radiation risk associated with radiographic or fluoroscopic x-ray examinations. Determining effective doses for radiologic examinations by measurement or calculation is generally very difficult. By contrast, the energy imparted, epsilon, to the patient may be obtained from the x-ray exposure-area product incident on the patient. A...
متن کاملEffective dose: a useful concept in diagnostic radiology.
Effective dose (E) was introduced by the International Commission of Radiological Protection (ICRP) to provide a summation of radiation doses to tissues and organs for radiological protection. For a non-uniform irradiation, E is designed to provide an estimate of the corresponding uniform whole-body dose that would result in the same stochastic detriment. E, which has the same units as equivale...
متن کاملApplication of Dose-Area Product compared with three other dosimetric quantities used to estimate patient effective dose in diagnostic radiology
Background: Application of Dose-area product (DAP) quantity has been increased in the clinical practice. DAP is relatively easy to measure. DAP has been shown to correlate well with the total energy imparted to the patient, which is related to the effective dose. Material and Methods: In this study, measurements of DAP were carried out in a sample of 421 adult patients who underwent convention...
متن کاملDose Assessment in Computed Tomography Examination and Establishment of Local Diagnostic Reference Levels in Mazandaran, Iran
Background: Medical X-rays are the largest man-made source of public exposure to ionizing radiation. While the benefits of Computed Tomography (CT) are well known in accurate diagnosis, those benefits are not risk-free. CT is a device with higher patient dose in comparison with other conventional radiation procedures. Objective: This study is aimed at evaluating radiation dose to patients from ...
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ژورنال
عنوان ژورنال: Radiation Protection Dosimetry
سال: 2007
ISSN: 0144-8420,1742-3406
DOI: 10.1093/rpd/ncm204