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Answer to Question #1253 Submitted to "Ask the Experts"

Category: Medical and Dental Patient Issues — Diagnostic X Ray and CT

The following question was answered by an expert in the appropriate field:

Q
Do you have a chart that lists the amount of radiation received during various medical exams as compared to other exams? For example: A CT of the abdomen is comparable to . . . . I ask this because I am a CT tech and am often asked how much radiation the patients are getting. While I do realize that the radiation dose received varies by patient size and the kVp and mAs used, I would like to be able to give my patients an approximate comparison when asked. Any help you can give will be much appreciated.
A

I think there are several individual groups that may have assimilated such information. Vanderbilt has such a compilation. See the section titled "Radiation Safety." Most of the x-ray and CT doses come from ICRP 62, which I recommend as a resource. We also have a compilation of doses for radiopharmaceuticals; it is not on Vanderbilt's Web site yet, but you can get it from http://www.doseinfo-radar.com/RADAR-INT-NM.html (part of a general Web site I run with dose-related information).

Michael G. Stabin, PhD, CHP
Assistant Professor of Radiology and Radiological Sciences

Answer posted on 9 October 2001. The information and material posted on this Web site is intended as general reference information only. Specific facts and circumstances may alter the concepts and applications of materials and information described herein. The information provided is not a substitute for professional advice and should not be relied upon in the absence of such professional advice specific to whatever facts and circumstances are presented in any given situation. Answers are correct at the time they are posted on the Web site. Be advised that over time, some requirements could change, new data could be made available, or Internet links could change. For answers that have been posted for several months or longer, please check the current status of the posted information prior to using the responses for specific applications.
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