Advertisement

Variation in computed tomography radiation dose in community hospitals

      Abstract

      Purpose

      Concerns abound regarding the radiation dose administered to children during trauma evaluations. It is important to minimize the radiation dose administered when a computed tomographic (CT) scan is performed. This study was carried out to determine the radiation dose delivered during trauma abdominal/pelvic CT scans performed in community hospitals.

      Methods

      Data on consecutive children transferred after abdominal/pelvic CT scan for trauma were reviewed. Dose information was retrieved directly from reports provided, or the hospital was contacted directly, and an age-standardized dose ratio was generated.

      Results

      One hundred eighty-six patients were identified, and 36 patients were excluded, leaving 150 patients from 40 different hospitals. Half received radiation doses that were less than the national 75th percentile norm, and half received radiation doses that were greater, overall ranging from 0.17 to 5.07 times.

      Conclusions

      Radiation exposure is a concern among those who evaluate injured children. Although not performing a CT scan may be the best way to reduce the dose, when a CT scan is deemed necessary, the scanner must be adjusted to the lowest possible settings necessary to obtain the information desired. This study identified a thirty-times range of radiation dosage for CT scans performed across 40 different hospitals.

      Key words

      To read this article in full you will need to make a payment

      Purchase one-time access:

      Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
      One-time access price info
      • For academic or personal research use, select 'Academic and Personal'
      • For corporate R&D use, select 'Corporate R&D Professionals'

      Subscribe:

      Subscribe to Journal of Pediatric Surgery
      Already a print subscriber? Claim online access
      Already an online subscriber? Sign in
      Institutional Access: Sign in to ScienceDirect

      References

      1. http://www.acr.org/SecondaryMainMenuCategories/quality_safety/RadSafety/RadiationSafety/guideline-diagnostic-reference.aspx, accessed August, 2011.

      2. Size-specific dose estimates (SSDE) in pediatric and adult body CT examinations, report of American Association of Physicists in Medicine Task Group 2044. American Association of Physicists in Medicine, College Park (Md)2011
      3. National Council on Radiation Protection and Measurements. http://www.ncrponline.org/. Accessed August 3, 2011.

        • Larson D.B.
        • Johnson L.W.
        • Schnell B.M.
        • et al.
        Rising Use of CT in Child Visits to the Emergency Department in the United States, 1995-2008.
        Radiology. 2001; 259: 793-801
        • Brenner D.J.
        • Hall E.J.
        Computerized tomography-an increasing source of radiation exposure.
        NEJM. 2007; 357: 2277-2284
      4. http://www.pedrad.org/associations/5364/ig/, accessed August, 2011.

        • Davies H.E.
        • Wathen C.G.
        • Gleeson F.V.
        The risks of radiation exposure related to diagnostic imaging and how to minimize them.
        BMJ. 2011; 342: d947