Academic radiology
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This study was designed to evaluate the performance of radiology residents in interpreting emergency department (ED) chest radiographs for congestive heart failure and to characterize the factors associated with a subsequent amended interpretation by an attending radiologist. ⋯ Interpretation of chest radiographs for congestive heart failure by radiology residents has a low error rate. The majority of chest radiographs with discrepant resident and attending interpretations were portable films of female patients with subtle radiographic findings of congestive heart failure, and were inherently difficult to interpret.
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To determine the sensitivity of susceptibility-weighted imaging (SWI) for depicting hemorrhagic hypointense foci of the brain in comparison with gradient-recalled echo (GRE)- and GRE-type single-shot echo-planar imaging (GREI, GRE-EPI), and to assess the basic characteristics of the susceptibility effect by using a phantom. ⋯ SWI was best for detecting small hemorrhagic hypointense foci. Artifacts of SWI were similar to GREI.
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We surveyed radiology residents to understand which information sources residents use to learn radiology. ⋯ Currently, residents prefer the Internet when researching a question, with Google as the Web site most commonly used. Case review or requisite books are more commonly used than are traditional textbooks. Radiology resident learning has rapidly shifted from traditional textbooks and journals to the Internet and short case review books.
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Although the number of women graduating from medical school continues to increase, their representation in radiology residency programs has not increased over the past 10 years. We examined whether the gender of radiology faculty and residents differed according to the gender of the departmental leadership. ⋯ The gender composition of radiology faculty and residents does not differ significantly according to the gender of the departmental chairperson or residency program director. Nevertheless, there continues to be a disparity in the representation of women among radiology faculty and residents.
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Diffusion tensor imaging (DTI) has been used extensively in determining morphology and connectivity of the brain; however, similar analysis in the spinal cord has proven difficult. The objective of this study was to improve the delineation of gray and white matter in the spinal cord by applying signal processing techniques to the eigenvalues of the diffusion tensor. Our approach involved creating anisotropy indices based on the difference between eigenvalues and mean diffusivity then using a fuzzy inference system (FIS) to delineate between gray and white matter in the human cervical spinal cord. ⋯ Diffusion tensor imaging using an FIS for tissue classification provides high contrast between spinal gray and white matter compared with traditional DTI indices and may provide a noninvasive technique to quantify the integrity and morphology of the human spinal cord following injury.