Radiology
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Comparative Study
Virtual autopsy: two- and three-dimensional multidetector CT findings in drowning with autopsy comparison.
To retrospectively determine the multidetector computed tomographic (CT) virtual autopsy findings of death by drowning in comparison with autopsy findings. ⋯ The multidetector CT finding of frothy airway fluid or high-attenuation airway sediment is highly suggestive of drowning; multidetector CT findings of pan sinus fluid, mastoid cell fluid, subglottic tracheal and bronchial fluid, and ground-glass opacity within the lung at multidetector CT are supportive of drowning in the appropriate scenario.
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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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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.
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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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To prospectively evaluate diffusion-weighted (DW) magnetic resonance (MR) imaging with a split acquisition of fast spin-echo signals for diffusion imaging (SPLICE) sequence for tissue characterization of lung carcinomas by using apparent diffusion coefficients (ADCs). ⋯ ADCs of lung carcinomas overlap, but ADCs of well-differentiated adenocarcinoma appear to be higher than those of other histologic lung carcinoma types.