Use of diagnostic imaging studies and associated radiation exposure for patients enrolled in large integrated health care systems, 1996-2010.
Use of diagnostic imaging studies and associated radiation exposure for patients enrolled in large integrated health care systems, 1996-2010.
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DOI:
10.1001/jama.2012.5960
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发表时间:
2012-06-13
影响因子:
120.7
通讯作者:
Williams, Andrew E.
中科院分区:
文献类型:
--
作者:
Smith-Bindman, Rebecca;Miglioretti, Diana L.;Johnson, Eric;Lee, Choonsik;Feigelson, Heather Spencer;Flynn, Michael;Greenlee, Robert T.;Kruger, Randell L.;Hornbrook, Mark C.;Roblin, Douglas;Solberg, Leif I.;Vanneman, Nicholas;Weinmann, Sheila;Williams, Andrew E.
Diagnostic imaging use increased significantly within fee-for-service models of care. Little is known about patterns of imaging among members of integrated health care systems. To estimate trends in imaging utilization and associated radiation exposure among members of integrated healthcare systems. Retrospective analysis of electronic records of members of six large integrated health systems from diverse regions of the country. Review of medical records allowed direct estimation of radiation exposure from selected tests. Between 1–2 million member-patients were included each year from 1996 to 2010. Advanced diagnostic imaging rates, and cumulative annual radiation exposure from medical imaging. During the 15 year study period, enrollees underwent a total of 30.9 million imaging examinations (over 25.9 million person-years), reflecting 1.18 (95% CI 1.17–1.19) tests per person per year, of which 35% were for advanced diagnostic imaging (CT, MRI, nuclear medicine, and ultrasound). Use of advanced diagnostic imaging increased from 1996 to 2010; computed tomography examinations increased from 52/1000 enrollees in 1996 to 149/1000 in 2010, 7.8% annual growth (95% CI 5.8%, 9.8%); MRI increased from 17/1000 to 65/1000, 10% annual growth (95% CI 3.3%, 16.5%); and ultrasound increased from 134/1000 to 230/1000, 3.9% annual growth (95% CI 3.0% to 4.9%). While nuclear medicine decreased from 32/1000 to 21/1000, 3% annual decline (95% CI 7.7% decline to 1.3% increase), after 2004, PET imaging rates increased from 2.2/10 000 to 23.5/10 000, 15.2% annual growth. While imaging increased within all health systems, the adoption of different modalities for anatomic area assessment varied. Increased use of CT resulted in increased radiation exposure for enrollees, with a doubling in the mean per capita effective dose and in the proportion of enrollees who received high (>20–50 mSv) or very high (>50mSv) annual radiation exposure. By 2010, nearly 7% of enrollees who underwent imaging received a high annual radiation exposure (>20–50 mSv) and 4% received a very high annual exposure (>50 mSv). Within integrated health care systems there was a large increase in the rate of advanced diagnostic imaging and associated radiation exposure between 1996 and 2010.
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影响因子:
--
作者:
Berrington de González A;Mahesh M;Kim KP;Bhargavan M;Lewis R;Mettler F;Land C
通讯作者:
Land C
DOI:
10.1056/nejmoa0901249
发表时间:
2009-08-27
期刊:
The New England journal of medicine
影响因子:
--
作者:
Fazel R;Krumholz HM;Wang Y;Ross JS;Chen J;Ting HH;Shah ND;Nasir K;Einstein AJ;Nallamothu BK
通讯作者:
Nallamothu BK
影响因子:
5
作者:
Hendrick, R. Edward;Pisano, Etta D.;Gatsonis, Constantine
通讯作者:
Gatsonis, Constantine
影响因子:
5
作者:
Parker, Laurence;Levin, David C.;Rao, Vijay M.
通讯作者:
Rao, Vijay M.
影响因子:
9.7
作者:
Levin, David C.;Rao, Vijay M.;Parker, Laurence
通讯作者:
Parker, Laurence