2021, Vol. 4, Issue 2, Part B
An examination of organ equivalent and eﬀective doses from diagnostic radiology procedures
Dr. Preeti Allum and Dr. D. Ravichander
The quantification of radiation risks associated with radiological examinations has been a subject of interest with the increased use of X-rays. Eﬀective dose, which is a risk-weighted measure of radiation to organs in the body associated with radiological examination, is considered a good indicator of radiological risk. We have therefore investigated patient eﬀective doses from radiological examinations. Organ and eﬀective doses were estimated for 94 patients who underwent computed tomography examinations and for 338 patients who had conventional radiography examinations. The Org Dose (version 2) program was used for the estimation of eﬀective doses. The tube potential ranges: 57 kVp to 138 kVp depending on the examination and patient size. The entrance surface doses have a wide range even for the same examination: 0.44-10.31 mGy (abdomen) and 0.66-16.08 mGy (lumbar spine) and the corresponding eﬀective dose ranges 0.025-0.77 mSv and 0.025-0.95 mSv respectively. Eﬀective dose for adult abdomen-pelvic CT examinations ranges 5.4-19.8 mSv with a mean of 13.6 mSv and for pediatrics ranges 2.1-5.5 mSv with a mean of 2.7 mSv. The mean eﬀective dose for adult chest and head CT examinations are 7.9 and 1.8 mSv respectively and for pediatrics are 1.7 and 1.1 mSv.
Pages: 147-154 | Views: 349 | Downloads: 172
How to cite this article:
Dr. Preeti Allum, Dr. D. Ravichander. An examination of organ equivalent and eﬀective doses from diagnostic radiology procedures. Int J Radiol Diagn Imaging 2021;4(2):147-154. DOI: 10.33545/26644436.2021.v4.i2b.310