Radiology
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Randomized Controlled Trial Comparative Study Clinical Trial
Postmyelography headache rates with Whitacre versus Quincke 22-gauge spinal needles.
To compare the postdural puncture headache (PDPH) rates after myelography with use of 22-gauge Whitacre (blunt tip) versus standard 22-gauge Quincke (bevel-tip) spinal needles. ⋯ The Whitacre needle is associated with an equal or lower PDPH risk; the lack of statistical significance is most likely related to sample size. Further study is necessary to determine whether the decreased PDPH rate justifies the added difficulty associated with use of the Whitacre needle.
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Comparative Study
Power injection of intravenous contrast material through central venous catheters for CT: in vitro evaluation.
To determine the feasibility of use of a power injector to deliver contrast material through central venous catheters for computed tomographic (CT) examinations. ⋯ In vitro analysis demonstrates that power injection of intravenous contrast medium through central venous catheters does not exceed the pressure limits of these catheters at the flow rates tested. In vivo testing to evaluate the safety and efficacy of power injection through central venous catheters is necessary.
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To examine the morphologic alterations of fractures of the lateral and anterior rib arcs and costochondral junction (CCJ) to better understand the factors that influence radiographic visualization and to gain insight into the mechanism of injury in rib fractures of abused infants. ⋯ Acute and healing rib fractures are common in infants who died with inflicted injury; detection is technique-dependent. Use of high-detail skeletal radiography to identify these injuries in live and deceased infants appears justified.
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To determine the efficacy of bronchial artery embolization in the control of massive hemoptysis due to pulmonary tuberculosis. ⋯ Patients with massive hemoptysis due to pulmonary tuberculosis should first be treated with bronchial artery embolization.