Dose evaluation of computed tomography in children abdomen with TLD

• Main Authors: Hsu, Tzu-Kun, 許慈坤
• Other Authors: Chang, Kwo-Ping
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/5hv5h5

碩士 === 慈濟科技大學 === 放射醫學科學研究所 === 104 === Abstract CT (computed tomography) is widely used in the clinical hospital of medical imaging, computer tomography is a fast, non-intrusive inspection equipment, but it is of Radiology in the highest dose of radiation instruments. The appropriate scanning parameters set, can obtain a good image quality and can reduce patient radiation dose. Radiation sensitivity of children than adults, so how to develop clinical scanning parameters are very important topic. In this study, the Ministry of Health and Welfare Department of Comparative respectively Taitung Hospital and successful branch of Radiology, computed tomography, the same brand TOSHIBA 80 Prosecution and device row CT (TSX-320A) with a single row of the Detects device CT (TSX-021B) during Pediatric prosthesis whole abdomen scan checks, changing the operating parameters of CT, including changing section width, the tube voltage and tube current effective effective parameters such as image resolution does not affect the diagnostic value of the parameter, the assessment of both the effective dose . Radiation dose measurement system using heat dosimeter TLD 100 (LiF) placed ATOM children leave the outer surface of the skin and internal organ dose measurements. In this study, clinical examination outside the parameters of CT scans, and two computer tomography to assess whether there is a viable parameters without affecting the diagnostic value of the case, again reducing the effective dose of the patient's dose as low as reasonably achievable best rule technology, according to the best of scanning parameters for future clinical use and give other hospitals use the same label as a reference model, and create a better quality of care and patient safety.