Academic radiology
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The purpose was to evaluate the effects on patients' pain perception of educating interventional radiology personnel in nonpharmacologic analgesia. ⋯ Interventional radiology personnel trained in nonpharmacologic analgesia methods can help reduce patients' pain perception during interventional procedures.
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Randomized Controlled Trial Comparative Study Clinical Trial
Comparison of conventional and computed radiography: assessment of image quality and reader performance in skeletal extremity trauma.
Reader performance and image quality wee assessed for standard film, computed film, and computer monitor radiography viewing formats in the evaluation of skeletal extremity trauma. ⋯ No statistically significant differences were seen in reader performance among viewing formats. The computed film format received the highest quality rating, and workstation viewing times were longest.
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The authors determined the usefulness of performing videoradiography and pharyngeal solid-state manometry during barium swallow in dysphagic patients with pharyngeal retention. ⋯ The constrictors play a minor role in the conveyance of the bolus through the pharynx. Pharyngeal shortening could be the most important mechanism in bolus transport.
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The authors tested the hypothesis that changes in oxygen saturation (%HbO2) in the superior mesenteric vein (SMV), as measured with in vivo magnetic resonance (MR) oximetry, correlate with the degree of acute superior mesenteric artery (SMA) flow reduction. ⋯ Noninvasive in vivo MR measurements of SMV %HbO2 can be used to determine the degree of acute SMA flow reduction with a high degree of accuracy in a canine model.
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Comparative Study
Density gradient of the lung parenchyma at computed tomographic scanning in patients with pulmonary hypertension and systemic sclerosis.
Pulmonary hypertension may complicate systemic sclerosis in the absence of fibrosing alveolitis. Abnormal pulmonary perfusion is known to result in regional differences in lung density at computed tomographic (CT) scanning. We assessed possible disturbances in the normal CT density gradient in patients with systemic sclerosis and reduced gas transfer but no clinical or radiologic evidence of fibrosing alveolitis. ⋯ In cases of systemic sclerosis without fibrosing alveolitis, we found a significantly smaller density gradient between dependent and nondependent lung regions in patients with pulmonary hypertension compared with patients without pulmonary hypertension. This finding suggests that the normal CT density gradient depends in part on normal compliance of the pulmonary vasculature.