Format

Send to:

Choose Destination
See comment in PubMed Commons below
J Am Coll Cardiol. 2010 Aug 24;56(9):702-11. doi: 10.1016/j.jacc.2010.05.014. Epub 2010 Jul 9.

Cumulative exposure to ionizing radiation from diagnostic and therapeutic cardiac imaging procedures: a population-based analysis.

Author information

  • 1Section of Cardiovascular Medicine, Department of Medicine, Yale School of Epidemiology and Public Health, New Haven, Connecticut 06520, USA. jersey.chen@yale.edu

Abstract

OBJECTIVES:

The purpose of this study was to describe radiation exposure from cardiac imaging procedures over time in a general population.

BACKGROUND:

Cardiac imaging procedures frequently expose patients to ionizing radiation, but their contribution to effective doses of radiation in the general population is unknown.

METHODS:

We used administrative claims to identify cardiac imaging procedures performed from 2005 to 2007 in 952,420 nonelderly insured adults in 5 U.S. health care markets. We estimated 3-year cumulative effective doses of radiation in millisieverts from these procedures We then calculated population-based annual rates of radiation exposure to effective doses < or =3 mSv/year (background level of radiation from natural sources), >3 to 20 mSv/year, or >20 mSv/year (upper annual limit for occupational exposure averaged over 5 years).

RESULTS:

A total of 90,121 (9.5%) individuals underwent at least 1 cardiac imaging procedure using radiation. Among patients who underwent > or =1 cardiac imaging procedures, the mean cumulative effective dose over 3 years was 23.1 mSv (range 1.5 to 543.7 mSv). Myocardial perfusion imaging accounted for 74% of the cumulative effective dose. Overall, 47.8% of cardiac imaging procedures were performed in physician offices; this proportion was higher for myocardial perfusion imaging (74.8%) and cardiac computed tomography studies (76.5%). The annual population-based rate of receiving an effective dose of >3 to 20 mSv/year was 89.0 per 1,000; and 3.3 per 1,000 for cumulative doses >20 mSv/year. Annual effective doses increased with age and were generally higher among men.

CONCLUSIONS:

Cardiac imaging procedures lead to substantial radiation exposure and effective doses for many patients in the U.S.

Copyright 2010 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

PMID:
20619569
[PubMed - indexed for MEDLINE]
PMCID:
PMC2952402
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for PubMed Central
    Loading ...
    Write to the Help Desk