Radiology
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To determine the rate and clinical outcome of discrepancies in interpretation by radiology residents and staff neuroradiologists of posttraumatic cranial computed tomographic (CT) scans. ⋯ A low discrepancy rate was found between interpretations made by radiology residents and those made by staff neuroradiologists of posttraumatic cranial CT scans. There were no adverse clinical outcomes.
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Comparative Study
MR imaging of the liver: comparison between single-shot echo-planar and half-Fourier rapid acquisition with relaxation enhancement sequences.
To evaluate single-shot T2-weighted magnetic resonance sequences and their role in clinical practice in patients with hepatic lesions. ⋯ Echo-planar images provide sufficient contrast to allow detection of both solid and cystic masses, but severe artifacts preclude routine use. Half-Fourier RARE images are free from artifacts (chemical shift and susceptibility) and diagnostic performance with them is similar to that with turbo SE images.
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Randomized Controlled Trial Comparative Study Clinical Trial
Tunneled hemodialysis catheters: use of a silver-coated catheter for prevention of infection--a randomized study.
To determine whether silver-coated tunneled hemodialysis catheters reduce infection and to determine the frequency of central venous thrombosis and stenosis with percutaneous placement of right internal jugular vein dialysis catheters by interventional radiologists. ⋯ Silver coating does not confer a benefit against clinical infection or colonization. Interventional radiologic placement of tunneled dialysis catheters yields a low frequency of permanent central venous thrombosis and stenosis.
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Comparative Study
Lumbar spine: quantitative and qualitative assessment of positional (upright flexion and extension) MR imaging and myelography.
To compare measurements of the sagittal diameter of the lumbar dural sac obtained at positional magnetic resonance (MR) imaging and at functional myelography and to assess the influence of various body positions on the dural sac and the intervertebral foramina. ⋯ Quantitative assessment of sagittal dural sac diameters is comparable between lumbar myelography and positional MR imaging. In a selected patient population, only small changes in the sagittal diameter of the dural sac and foraminal size can be expected between various body positions, and the information gained in addition to that from standard MR imaging is limited [corrected].
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The authors present their experience with previously unsuspected carcinoma of the lung detected at preoperative computed tomography (CT) in patients with severe pulmonary emphysema who were scheduled to undergo lung volume reduction surgery. ⋯ A 5% rate of stage I primary lung cancer in patients selected for lung volume reduction surgery suggests that performance of chest CT in candidates for lung volume reduction surgery is appropriate not only to identify patterns of pulmonary parenchymal destruction but also to search for stage I lung cancer.