نتایج جستجو برای: diagnostic reference levels

تعداد نتایج: 1423468  

2004
A. Aroua A. Besançon I. Buchillier-Decka P. Trueb J.-F. Valley F. R. Verdun W. Zeller

The aim of this work is to describe how diagnostic reference levels (DRLs) are being established and implemented in Switzerland. Several nationwide surveys are launched in order to determine the patient dose distributions for a number of CT and fluoroscopy examinations that will be used to set up the corresponding DRLs. Meanwile the european recommended DRLs are considered. When no European rec...

Journal: :Journal of Medical Radiation Sciences 2020

Journal: :iranian journal of radiology 0
mohammad taghi bahreyni toossi medical physics research center, faculty of medicine, mashhad university of medical sciences, iran malakeh malekzadeh nursing and allied health faculty, semnan university of medical sciences, iran +98-2313354190, [email protected]; nursing and allied health faculty, semnan university of medical sciences, iran +98-2313354190, [email protected]

background with the increase of x-ray use for medical diagnostic purposes, knowing the given doses is necessary in patients for comparison with reference levels. the concept of reference doses or diagnostic reference levels (drls) has been developed as a practical aid in the optimization of patient protection in diagnostic radiology. objectives to assess the radiation doses to neonates from dia...

Journal: :iranian journal of radiation research 0
s.m.j. mortazavi school of medicine, rafsanjan university of medical sciences, rafsanjan, iran a. shareghi m. ghiassi-nejad a. kavousi m. jafari-zadeh f. nazeri

background: intraoral radiographies are the most frequent x-ray examinations in humans. according to international commission on radiation protection (icrp) recommendations, the selection of a diagnostic reference level (drl) should be specific to a country or region. critica l organs such as thyroid gland are exposed to x-rays in intraoral radiography and these exposures should be kept as low ...

Journal: :iranian journal of radiation research 0
a. janbabanezhad-toori radiobiology and radiation protection, babol university of medical sciences, babol, iran m.r. deevband department of medical physics and biomedical engineering, school of medicine, shahid beheshti university of medical sciences, tehran, iran a. shabestani-monfared department of medical physics, faculty of medicine, babol university of medical sciences, babol, iran r. abdi department of radiology, mazandaran university of medical sciences, sari, iran m. nabahati department of radiology, babol university of medical sciences, babol, iran

background: computed tomography (ct) is main contributor of population dose from diagnostic x-ray examinations. children are more radiosensitive than adults, thus optimization of ct examination in these patients is essential. the purpose of this study was to evaluate dose delivered to pediatric patients’ undergoing ct examination of the common examinations and also establishing local diagnostic...

Journal: :Sudan journal of medical sciences 2022

Background: Breast cancer is the most frequent among female population globally. Therefore, early detection helpful for effective treatments and to reduce mortality rate. Mammography a radiological examination done with low-energy X-rays detect abnormalities in breast tissue. This study aims review literature evaluate techniques, protocols, conversion factors used determine diagnostic reference...

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