Comparison of effective dose before and after adjusting parameters for Chest and Abdominal computed tomography of Udonthani Hospital
Keywords:
Effective dose, computed tomography dose index (CTDIvol), diagnostic reference level (DRL)Abstract
The objective of this quasi-experimental study was to compare the radiation dose to the patient's results from computerized tomography before and after parameter adjustment. The sample groups were Patients over 20 years of age come to check with computed tomography. At the radiology work group Udon Thani Hospital. By selecting a specific The sample group was 52. The instruments used in the research were: Radiation data record form Samples were collected from the PACS system of Udon Thani Hospital 2 groups, Group 1 from January 1, 2019 to April 30, 2020 and Group 2 from June 23, 2020 to 31. August 2020 The data were analyzed using descriptive statistics central tendency including median.
When comparing the radiation dose, the patient's results were obtained from the computed tomography of Udon Thani Hospital. Under the same number of scan cycles or phases. Found that chest computed tomography Upper abdomen and entire abdomen Before adjusting the parameters, the median was 19.44, 34.35, and 45.94 mSv. After adjusting the parameters, the mean was 7.87, 15.33, and 20.23 mSv.
References
ปริมาณรังสีในผู้ป่วยเป็นตัวชี้วัดใหม่ในงานคุณภาพรังสีวินิจฉัย. [Online]. 2014; [cited 2019 Sep 13]. Available from: https://www.sunpasit.go.th/2014/upload/4142f4b621067a981ffee8262aa6fcec.pdf
United Nations Scientific Communities on the Effects of Atomic Radiation. Source and effects of ionizing radiation. UNSCEAR 2008 Report. United Nations Publication sales E.10.XI.3. NewYork: United Nations, 2010. Available from: https://www.unscear.org/unscear/en/publications/2008_1.html
IAEA: Radiation protection of patients (RPOP):Information for X-ray. Available from: http://rpop.iaea.org/RPOP/RPoP/Content/InformationFor/Patients/patient-information-x-rays/index.htm.
Mettler FA Jr, Huda W, Yoshizumi TY, Mahesh M. Effective doses in radiology and diagnostic nuclear medicine: a catalog. Radiology. 2008; 248:257-63. Available from: https://www2.rsna.org/timssnet/radiologyselect/dose/PDF%20Files/category%202/V521.pdf
Panruethai T, Supika K, Chantima R, Pannee V, Jiraporn S. Radiation dose from CT scanning: can it be reduced? Asian Biomedicine Vol. 5 No. 1 February 2011; 13-21. Available from: https://www.researchgate.net/publication/269683412_Radiation_dose_from_CT_scanning_Can_it_be_reduced
Shrimpton PC, Hillier MC, Lewis MA, Dunn M.National survey of doses from CT in the UK: 2003.BrJ Radiol. 2006; 79: 968-980 Available from: The British Journal of Radiology, 79 (2006), 968–980. Available from:
https://www.researchgate.net/publication/6588698_National_survey_of_doses_from_CT_in_the_UK_2003
Peter Vock, Graciano Paulo, Renato Padovani. Greece CT Medical Exposures and CT Risk/Benefit. EMAN – European Medical ALARA. edition 3n October 2013. Available from: https://www.eurosafeimaging.org/wp/wp-content/uploads/2015/10/Edition_3_-_October_2013.pdf
Hyun Woo Goo. CT Radiation Dose Optimization and Estimation: an Update for Radiologists. pISSN 1229-6929 · eISSN 2005-8330 Korean J Radiol 2012;13(1):1-11 Available from: http://dx.doi.org/10.3348/kjr.2012.13.1.1
Kaasalainen, T., Palmu, K., Reijonen, V., & Kortesniemi, M. (2014). Effect of Patient Centering on Patient Dose and Image Noise in Chest CT. American Journal of Roentgenology, 203(1), 123-130. Available from: https://doi.org/10.2214/AJR.13.12028
Thomas Toth, Zhanyu Ge, Michael P. Daly. The influence of patient centering on CT dose and image noise. Medical physics 2007; 34: 3093-3101. Available from: https://doi.org/10.1118/1.2748113
Willemink, M.J., Noël, P.B. The evolution of image reconstruction for CT from filtered back projection to artificial intelligence. European Radiology 29, 2185–2195 (2019). Available from: https://doi.org/10.1007/s00330-018-5810-7
