Radiology
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Comparative Study
Symptomatic white matter changes in mild traumatic brain injury resemble pathologic features of early Alzheimer dementia.
To evaluate white matter integrity in patients with mild traumatic brain injury (TBI) who did not have morphologic abnormalities at conventional magnetic resonance (MR) imaging with diffusion-tensor imaging to determine any relationship between patterns of white matter injury and severity of postconcussion symptoms. ⋯ The distribution of white matter abnormalities in patients with symptomatic mild TBI is strikingly similar to the distribution of pathologic abnormalities in patients with early Alzheimer dementia, a finding that may help direct research strategies.
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To assess quantitative susceptibility mapping (QSM) in the depiction of the subthalamic nucleus (STN) by using 3-T magnetic resonance (MR) imaging. ⋯ QSM at 3-T MR imaging performs significantly better than current standard-of-care sequences in the depiction of the STN.
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Review
Imaging review of the temporal bone: part I. Anatomy and inflammatory and neoplastic processes.
From a clinical-radiologic standpoint, there are a limited number of structures and disease entities in the temporal bone with which one must be familiar in order to proficiently interpret a computed tomographic or magnetic resonance imaging study of the temporal bone. It is helpful to examine the region in an organized and systematic fashion, going through the same checklist of key structures each time. This is the first of a two-part review that provides a practical approach to understanding temporal bone anatomy, localizing a pathologic process with a focus on inflammatory and neoplastic processes, identifying pertinent positives and negatives, and formulating a differential diagnosis.
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To assess clinical and ultrasonographic (US) criteria that can be used to confidently differentiate ileocolic from small-bowel intussusception. ⋯ The presence of an inner fatty core in the intussusception, lesion diameter, wall thickness, the ratio of fatty core thickness to outer wall thickness, and the presence of lymph nodes in the lesion may enable reliable differentiation between ileocolic and small-bowel intussusceptions.
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To characterize the 100 most-cited articles in medical imaging. ⋯ Preclinical articles, primarily in the field of neurologic MR imaging, were highly represented in the top 100 cited articles in the medical imaging literature.