AJR. American journal of roentgenology
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AJR Am J Roentgenol · Oct 2013
Appropriateness of imaging studies ordered by emergency medicine residents: results of an online survey.
The purpose of this study is to determine the proficiency of emergency medicine residents in selecting appropriate radiologic examinations for specific clinical scenarios and to ascertain whether their training improves competency in this area over the course of their residency. ⋯ Emergency medicine residents do not show significant improvement over the course of their residency in their ability to choose appropriate imaging studies. This finding suggests that there is a role for more-rigorous focused instruction to better familiarize residents with appropriateness guidelines for diagnostic imaging selection.
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AJR Am J Roentgenol · Oct 2013
Detection of implants and other objects using a ferromagnetic detection system: implications for patient screening before MRI.
Ferromagnetic detection systems have been used to prevent accidents related to external ferromagnetic objects (e.g., pocket knives, hearing aids, and so on). If a ferromagnetic implant was missed during MRI screening, the ability to use a ferromagnetic detection system to discover the object in a patient before MRI could potentially avoid a serious injury, which has important implications for patient safety. Therefore, the purpose of this investigation was to use a ferromagnetic detection system to assess implants and other objects that may be encountered in patients referred for MRI procedures. ⋯ These results indicated that, besides being used to identify external ferromagnetic objects, this ferromagnetic detection system may be a useful tool to screen patients referred for MRI examinations who may have implanted or embedded items. Further investigation to determine the use of this ferromagnetic detection system to detect additional implants in the clinical setting is warranted.
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AJR Am J Roentgenol · Sep 2013
Relationships between airflow obstruction and quantitative CT measurements of emphysema, air trapping, and airways in subjects with and without chronic obstructive pulmonary disease.
This study evaluates the relationships between quantitative CT (QCT) and spirometric measurements of disease severity in cigarette smokers with and without chronic obstructive pulmonary disease (COPD). ⋯ QCT measurements are strongly associated with spirometric results showing impairment in smokers. LAA-856E strongly correlates with physiologic measurements of airway obstruction. Airway measurements can be used concurrently with QCT measures of low-attenuation areas to accurately predict lung function.
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AJR Am J Roentgenol · Sep 2013
Citation classics in radiology journals: the 100 top-cited articles, 1945-2012.
The number of citations an article receives after its publication reflects its impact in the scientific community. The aim of this study was to identify and characterize the 100 top-cited articles published in radiology journals. ⋯ Our study presents a detailed list and analysis of the 100 top-cited articles published in radiology journals, which provides insight into historical developments in the field of radiology.