Radiology
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To retrospectively determine what information, if any, magnetic resonance (MR) imaging of the cervical spine in obtunded and/or "unreliable" patients with blunt trauma adds to multi-detector row computed tomography (CT) of the entire cervical spine (including routine multiplanar sagittal and coronal reformations) when the CT findings are normal. ⋯ A normal multi-detector row CT scan of the total cervical spine in obtunded and/or "unreliable" patients with blunt trauma enabled the authors to exclude unstable injuries on the basis of findings at follow-up cervical spine MR imaging.
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To prospectively determine whether early first-pass perfusion and delayed-enhancement magnetic resonance (MR) imaging sequences can enable differentiation of acute myocardial infarction (AMI) from myocarditis in patients with acute chest pain. ⋯ Use of combined early- and late-perfusion MR imaging sequences helps to distinguish AMI from myocarditis.
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Comparative Study
Adverse cardiovascular and respiratory events during sedation of pediatric patients for imaging examinations.
To retrospectively identify factors associated with an increased risk of adverse cardiovascular or respiratory events during sedation of pediatric patients for imaging examinations. ⋯ Consideration should be given to using single agents, avoiding the use of multidrug sedation regimens, and recognizing that a history of pulmonary disease could be associated with an increased risk of adverse respiratory events despite a currently stable respiratory state.
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To retrospectively evaluate the magnetic resonance (MR) imaging features of lymphomatoid granulomatosis in the brain. ⋯ Lymphomatoid granulomatosis has a high rate of central nervous system involvement and a variable spectrum of lesions at MR imaging. Findings in this study suggest that MR imaging is more sensitive than CSF cytologic analysis or flow cytometry for detection of central nervous system involvement from lymphomatoid granulomatosis.
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To prospectively evaluate several diffusion-tensor magnetic resonance (MR) imaging indexes (mean diffusivity [MD], fractional anisotropy [FA], and eigenvalues) of corticospinal tract impairment in patients with progressive muscular atrophy (PMA) and patients with amyotrophic lateral sclerosis (ALS). ⋯ Diffusion-tensor MR imaging reveals corticospinal tract impairment in ALS but not in PMA.