AJR. American journal of roentgenology
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AJR Am J Roentgenol · May 2010
Use of a rosch-uchida needle for recanalization of refractory dialysis-related central vein occlusion.
The purpose of this study was to evaluate our experience with the use of a Rösch-Uchida needle technique to recanalize central vein occlusion that cannot be traversed with a guidewire. ⋯ Use of a Rösch-Uchida needle to recanalize central vein occlusion refractory to a traditional procedure is feasible and safe and can preserve the involved extremity for long-term hemodialysis.
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AJR Am J Roentgenol · May 2010
Cost-effectiveness of coronary CT angiography in evaluation of patients without symptoms who have positive stress test results.
Patients without symptoms who have positive stress test results are often referred for diagnostic catheter angiography in an evaluation for coronary artery disease (CAD). The purpose of this study was to use decision tree analysis to determine the cost-effectiveness and radiation dose that would result from performing coronary CT angiography (CTA) before catheterization. ⋯ Performing coronary CTA before cardiac catheterization is a cost-effective strategy in the care of patients without symptoms who have positive stress test results when the probability that the patient has significant coronary artery disease is less than 50%. The false-negative rate with this strategy compares favorably with the false-negative rate of stress testing. The use of coronary CTA in this role can avoid many unnecessary cardiac catheterization procedures.