Relative collective dose distribution of CT among all diagnostic X-ray examination in AA, Ethiopia governmental hospitals from September 2015 – August 2016.
Background: Computed tomography (CT) is a major source of ionizing radiation exposure in medical diagnostic imaging. Compared to adults, children are supposed to be more susceptible to radiation risks than adults. Despite these, as of many literatures, referring physician’s knowledge of pediatric CT doses and possible risks incurred following the procedure is in adequate. Hence the objective of this work is to assess the awareness of pediatric residents and medical interns about pediatric CT dose and possible risks..
Methods: A cross-sectional study was conducted on May/ 2016 among year I to year III pediatric residents and 2015/2016 year medical interns attaching pediatrics department during study period in Tikur Anbessa Specialized Referral and Teaching Hospital. Data was collected by distributing standardized structured questionnaires. Finally, after the data was checked for clarity and completeness it was analyzed by using SPSS software .
Result: While the majority (76.3%) of the residents and interns knew that children were more sensitive to radiation than adults, 93.7% did not know that there is currently no annual dose limit set for medical exposure of patients. The majority of the respondents (81.3%) know the risk of cancer from CT scan, but most (60%) of the respondents did not know that many imaging facilities still use adult doses for pediatric patients. Furthermore 18.8% thought that magnetic resonance imaging involves ionizing radiation and 8.9% of the physicians associated ultrasound examinations with ionizing radiation. Within resident group, the level of clinical experience did not affect the outcome.
Dr. G.I. Ogbole. Radiation dose in pediatric computed tomography: risks and benefits. Annals of Ibadan Postgraduate Medicine. Vol. 8 No. 2 December, 2010;1,5.
Brenner DJ, Elliston CD, Hall EJ, Berdon WE: Estimated risks of radiation induced fatal cancer from pediatric CT. Am J Roentgenol 2001,176(2):289-296.
Pages J, Buls N, Osteaux M. CT doses in children: a multicentre study. The British Journal of Radiology. 2003;76: 803–811
Wiest PW, Locken JA, Heintz PH, Mettler FA Jr. CT scanning: a major source of radiation exposure. Semin Ultrasound CT MR 2002;23:402-410.
White KS. Helical/spiral CT scanning: a pediatric radiology perspective. PediatrRadiol 1996; 26:5-14.
Linton OW, Mettler FA Jr. National conference on dose reduction in CT, with an emphasis on pediatric patients. AJR Am J Roentgenol 2003;181:321-329.
Daniel Zewdneh , SeifeTeferiDellie , TewodrosAyele; A Study of Knowledge & Awareness of Medical Doctors Towards Radiation Exposure Risk At TikurAnbessa Specialized Referral And Teaching Hospital, Addis Ababa, Ethiopia. IOSR Journal of Pharmacy and Biological Sciences (IOSRJPBS) ISSN: 2278-3008 Volume 2, Issue 4 (July-August 2012), PP 01-05;1-2.
Chodick G, Ronckers CM, Shalev V, Ron E. Excess lifetime cancer mortality risk attributable to radiation exposure from computed tomography examinations in children. Isr Med Assoc J 2007; 9: 584-587 [PMID: 17877063]
Louise Potter ton: New Study Shows Global Variation in Dose Levels for Child CT Scans,IAEA Division of Public Information. http://www.european-hospital.com/en/ar ticle/7145.html accessed on 29 July 2010.
Hiltrud Merzenich1, Lucian Krille1, Gael Hammer1, Melanie Kaiser1, Shunichi Yamashita2 and Hajo Zeeb1,3*;Pediatric CT scan usage and referrals of children to computed tomography in Germany-a cross-sectional survey of medical practice and awareness of radiation related health risks among physicians.Merzenich et al. BMC Health Services Research 2012, 12:47
Ayşe SeçilEkşioğlu, ÇiğdemÜner.Pediatricians’ awareness of diagnostic medical radiation effects and doses: are the latest efforts paying off?. Turkish Society of Radiology 2012;78-82.
Lee CI, Haims AH, Monico EP, Brink JA, Forman HP. Diagnostic CT scans: assessment of patient, physician, and radiologist awareness of radiation dose and possible risks.Radiology2004; 231: 393-398 [PMID: 15 031431 DOI: 10.11 48/ radiol.2312030767].
Smith-Bindman R, Miglioretti DL, Larson EB. Rising use of diagnostic medical imaging in a large integrated health system. Health Aff(Millwood) 2008; 27: 1491-15 02 [PMID:18997204 DOI: 10.1377/hlthaff.27.6.1491].
Shiralkar S, Rennie A, Snow M, Galland RB, Lewis MH,Gower-Thomas K. Doctors’ knowledge of radiation exposure: questionnaire study. BMJ 2003; 327: 371-372 [PMID:12919987 DOI: 10.11 36/bmj.327.7411 .371].
Soye JA, Paterson A. A survey of awareness of radiation dose among health professionals in Northern Ireland. Br J Radiol2008; 81: 725-729 [PMID: 185911 96 DOI: 10.1259/bjr/94101717].
Moss M, McLean D. Paediatric and adult computed tomography practice and patient dose in Australia. AustralasRadiol2006; 50: 33-40 [PMID: 16499725 DOI: 10.1111 /j.1440-1673.2005.015 44.x]
Jacob K, Vivian G, Steel JR. X-ray dose training: are we exposed to enough? ClinRadiol2004; 59: 928-934; discussion926-927[PMID: 15 451 354 DOI: 10.1016/j.crad.2004.04.020].
Hussein Almohiy.Pediatric computed tomography radiation dose: A review of the global dilemma; World J Radiol2014 January 28; 6(1): 1-6, ISSN 1949-8470 (online); 3.
Rockville. Radiation risks and pediatric computed tomography (CT):a guide for health care providers.NationalCancerInstitute.http://www.nci.nih.gov/cancertopics/causes/radiation-risks-pediatric-CT