Evaluation of image-enhanced paediatric computed tomography brain examinations
| Autor: | L. M. Wiklund, F. Stålhammar, Anne Thilander-Klang, A. Forsberg, Kerstin Ledenius, C. Fredriksson |
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| Rok vydání: | 2010 |
| Předmět: |
Male
medicine.medical_specialty Image quality Computed tomography Radiation Dosage Sensitivity and Specificity Radiation Protection Humans Medicine Radiology Nuclear Medicine and imaging Paediatric patients Image-guided radiation therapy Radiation Radiological and Ultrasound Technology medicine.diagnostic_test business.industry Radiation dose Public Health Environmental and Occupational Health Brain Infant Reproducibility of Results General Medicine Radiographic Image Enhancement Child Preschool Body Burden Radiographic Image Interpretation Computer-Assisted Female Radiology Tomography X-Ray Computed Brain examination business |
| Zdroj: | Radiation Protection Dosimetry. 139:287-292 |
| ISSN: | 1742-3406 0144-8420 |
| DOI: | 10.1093/rpd/ncq097 |
| Popis: | The aim of this study was to evaluate the possibility of reducing the radiation dose to paediatric patients undergoing computed tomography (CT) brain examination by using image-enhancing software. Artificial noise was added to the raw data collected from 20 patients aged between 1 and 10 y to simulate tube current reductions of 20, 40 and 60 mA. All images were created in duplicate; one set of images remained unprocessed whereas the other was processed with image-enhancing software. Three paediatric radiologists assessed the image quality based on their ability to visualise the high- and low-contrast structures and their overall impression of the diagnostic value of the image. For patients aged 6-10 y, it was found that dose reductions from 27 mGy (CTDI(vol)) to 23 mGy (15 %) in the upper brain and from 32 to 28 mGy (13 %) in the lower brain were possible for standard diagnostic CT examinations when using the image-enhancing filter. For patients 1-5 y, the results for standard diagnostics in the upper brain were inconclusive, for the lower brain no dose reductions were found possible. |
| Databáze: | OpenAIRE |
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