35 Calculation of organ doses for CT examination
| Autor: | F. Maaloul, L. Guérin, T. Julien, S. battini, A. Al masri |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Thorax
Protocol (science) medicine.diagnostic_test business.industry Biophysics General Physics and Astronomy Computed tomography General Medicine Radiological examination 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Software Ct examination 030220 oncology & carcinogenesis medicine Radiology Nuclear Medicine and imaging Nuclear medicine business |
| Zdroj: | Physica Medica. 56:55-56 |
| ISSN: | 1120-1797 |
| DOI: | 10.1016/j.ejmp.2018.09.117 |
| Popis: | Introduction Ionising radiation needs to be precisely evaluated since CT scan is the main radiological examination today. Biological effects caused by radiation are estimated with computational methods as it’s not possible to measure the real doses delivered directly to a specific organ. The DOSITRACE software is a Dose Archiving and Communication System (DACS) based on a new calculation method which allows a more reliable estimation of organ doses. The aim of this study was to compare our results with the results given by the VIRTUALDOSE [1] software using the Monte-Carlo method. Methods CTDIvol, current and rotation time for each acquisition were used to calculate organ doses (ICPR). Four CT protocols (abdomen-pelvis, chest-abdomen-pelvis, chest and thorax) were used with three different CT scans. Thirty patients were selected for each protocol. In total, CT scan exams were analysed and our results were compared with the ones obtained with the VIRTUALDOSE software. Results There was only a 20% difference in the estimation of organ doses between the VIRTUALDOSE and DOSITRACE software’s results which is not statistically significant. Conclusions We demonstrated that DOSITRACE is a reliable software in order to calculate organ doses. |
| Databáze: | OpenAIRE |
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