The ICRU (International Commission on Radiation Units and Measurements): its contribution to dosimetry in diagnostic and interventional radiology
| Autor: | André Wambersie, Hg. Menzel, Johannes Zoetelief, H. G. Paretzke |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
medicine.medical_specialty
International Cooperation Radiology Interventional Radiation Dosage Ionizing radiation Kerma Radiation Protection medicine Humans Dosimetry Radiology Nuclear Medicine and imaging Medical physics Radiometry Probability Stochastic Processes Radiation Radiological and Ultrasound Technology medicine.diagnostic_test business.industry Equivalent dose Public Health Environmental and Occupational Health Water Interventional radiology General Medicine Absorbed dose Radiological weapon Calibration Radiation protection Radiology Nuclear medicine business |
| Zdroj: | Radiation Protection Dosimetry. 117:7-12 |
| ISSN: | 1742-3406 0144-8420 |
| Popis: | The ICRU (International Commission on Radiation Units and Measurements was created to develop a coherent system of quantities and units, universally accepted in all fields where ionizing radiation is used. Although the accuracy of dose or kerma may be low for most radiological applications, the quantity which is measured must be clearly specified. Radiological dosimetry instruments are generally calibrated free-in-air in terms of air kerma. However, to estimate the probability of harm at low dose, the mean absorbed dose for organs is used. In contrast, at high doses, the likelihood of harm is related to the absorbed dose at the site receiving the highest dose. Therefore, to assess the risk of deterministic and stochastic effects, a detailed knowledge of absorbed dose distribution, organ doses, patient age and gender is required. For interventional radiology, where the avoidance of deterministic effects becomes important, dose conversion coefficients are generally not yet developed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|