Dosimetry for optimisation of patient protection in computed tomography
| Autor: | Paul C. Shrimpton, Jacob Geleijns, G. Tosi, W. Panzer, K. A. Jessen |
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| Rok vydání: | 1999 |
| Předmět: |
Quality Control
Reference dose Radiation medicine.diagnostic_test business.industry Computer science Phantoms Imaging Computed tomography dose index food and beverages Computed tomography Reference Standards Radiation Dosage Effective dose (radiation) Radiation Protection Absorbed dose medicine Dosimetry Humans Radiation protection Nuclear medicine business Radiometry Tomography X-Ray Computed Technology Radiologic Image-guided radiation therapy |
| Zdroj: | Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 50(1) |
| ISSN: | 0969-8043 |
| Popis: | The complex conditions of irradiation in computed tomography (CT), involving highly-collimated X-ray beams, necessitate the use of specially-defined dose descriptors such as the computed tomography dose index (CTDI). When used in a weighted form (CTDIW), this concept can describe the absorbed dose from a single slice in standard head and body phantoms. The model can easily be extended to characterise patient exposure for a complete examination by means of the reference dose quantity dose-length product (DLP). Effective dose can also be estimated from DLP, when required. |
| Databáze: | OpenAIRE |
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