Radiology
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To retrospectively evaluate flow patterns of interlaminar lumbar epidural steroid injections and compare these patterns to needle tip position. ⋯ Epidural injectate flow is highly variable, both among patients and between injections in a single patient. Fluoroscopic monitoring and administration of contrast material mixed with medication, allowing visualization of the full extent of medication flow, are essential to ensure adequate coverage of the target area.
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To prospectively evaluate whether quantitative and qualitative magnetic resonance (MR) imaging assessments after spinal cord injury (SCI) correlate with patient neurologic status and are predictive of outcome at long-term follow-up. ⋯ MSCC, spinal cord hemorrhage, and cord swelling are associated with a poor prognosis for neurologic recovery. Extent of MSCC is more reliable than presence of canal stenosis for predicting the neurologic outcome after SCI.
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Comparative Study
Suspected appendicitis in children: rectal and intravenous contrast-enhanced versus intravenous contrast-enhanced CT.
To retrospectively compare the diagnostic performance of intravenous contrast material-enhanced computed tomography (CT) with that of intravenous and rectal contrast-enhanced CT in the evaluation of children suspected of having appendicitis by using pathologic findings, surgical findings, or a follow-up telephone call as the reference standard. ⋯ There was no significant difference between the performance of intravenous contrast-enhanced CT and that of rectal and intravenous contrast-enhanced CT in children suspected of having appendicitis.
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Controlled Clinical Trial
Primary patency with cutting and conventional balloon angioplasty for different types of hemodialysis access stenosis.
To compare primary patency rates of cutting balloon percutaneous transluminal angioplasty (PTA) (hereafter, cutting PTA) and conventional balloon PTA (hereafter, conventional PTA) in the treatment of different types of hemodialysis access stenosis. ⋯ Primary patency rates are significantly higher for cutting PTA in the treatment of graft-to-vein anastomotic stenosis; however, no significant differences in primary patency rates exist between these PTAs in the treatment of autogenous venous stenosis, intragraft stenosis, or in-stent restenosis.
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Controlled Clinical Trial
Intracranial aneurysms: treatment with bare platinum coils--aneurysm packing, complex coils, and angiographic recurrence.
To retrospectively assess, with three-dimensional rotational angiography, the relationship between packing, complex coils, and angiographic recurrence of aneurysms treated with coils. ⋯ More angiographic recurrences are detected over time. Complex coils do not augment aneurysm packing. Packing is not related to protection against recurrence.