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Research Studies is a monthly compilation of research articles funded by AHRQ or authored by AHRQ researchers and recently published in journals or newsletters.
Results1 to 4 of 4 Research Studies Displayed
Big versus small data and the generalizability of the rate of computed tomography overuse in minor head injury.
This correspondence to the editor discusses overuse of computed tomography (CT) in emergency department patients with minor head injury. The authors ask what value a “big data” approach adds to the knowledge in the research examining overuse of CT in minor head injury.
Citation: Melnick ER . Big versus small data and the generalizability of the rate of computed tomography overuse in minor head injury. Acad Emerg Med 2017 Mar;24(3):391-92. doi: 10.1111/acem.13084..
Keywords: Brain Injury, Data, Imaging
Murphy DR, Meyer AN, Bhise V
Computerized triggers of big data to detect delays in follow-up of chest imaging results.
A "trigger" algorithm was used to identify delays in follow-up of abnormal chest imaging results in a large national clinical data warehouse of electronic health record (EHR) data. In this study, the authors applied a trigger in a repository hosting EHR data from all Department of Veterans Affairs health-care facilities and analyzed data from seven facilities. The investigators concluded that application of triggers on "big" EHR data may aid in identifying patients experiencing delays in diagnostic evaluation of chest imaging results suspicious for malignancy.
Citation: Murphy DR, Meyer AN, Bhise V . Computerized triggers of big data to detect delays in follow-up of chest imaging results. Chest 2016 Sep;150(3):613-20. doi: 10.1016/j.chest.2016.05.001..
Keywords: Imaging, Electronic Health Records (EHRs), Health Information Technology (HIT), Data, Diagnostic Safety and Quality, Cancer
Kuehl DR, Berdahl CT, Jackson TD
Advancing the use of administrative data for emergency department diagnostic imaging research.
This article summarizes the discussions of the breakout session on the use of administrative data for emergency imaging research at the May 2015 Academic Emergency Medicine consensus conference, "Diagnostic Imaging in the Emergency Department: A Research Agenda to Optimize Utilization." The authors describe the areas where administrative data have been applied to research evaluating the use of diagnostic imaging in the ED, the common sources for these data, and the strengths and limitations of administrative data.
Citation: Kuehl DR, Berdahl CT, Jackson TD . Advancing the use of administrative data for emergency department diagnostic imaging research. Acad Emerg Med 2015 Dec;22(12):1417-26. doi: 10.1111/acem.12827.
Keywords: Data, Emergency Department, Health Services Research (HSR), Imaging
Wernli KJ, DeMartini WB, Ichikawa L
Patterns of breast magnetic resonance imaging use in community practice.
The researchers described patterns of breast MRI use in US community practice during the period 2005 through 2009. They found that the overall rate of breast MRI from 2005 through 2009 nearly tripled from 4.2 to 11.5 examinations per 1000 women, with the most rapid increase from 2005 to 2007.
Citation: Wernli KJ, DeMartini WB, Ichikawa L . Patterns of breast magnetic resonance imaging use in community practice. JAMA Intern Med 2014 Jan;174(1):125-32. doi: 10.1001/jamainternmed.2013.11963..
Keywords: Cancer: Breast Cancer, Data, Healthcare Utilization, Imaging, Registries