Journal of vascular and interventional radiology : JVIR
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J Vasc Interv Radiol · Sep 2007
Clinical TrialTranslaminar cervical epidural steroid injection: short-term results and factors influencing outcome.
To assess the efficacy of translaminar cervical epidural steroid injection (ESI) in the management of localized or radicular neck pain and assess categoric factors that can help predict clinical outcome. ⋯ Translaminar cervical ESI is a safe procedure. Although repeat injections may be necessary in some patients, excellent short-term clinical results can be achieved.
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J Vasc Interv Radiol · Sep 2007
Clinical TrialElectromagnetic tracking for thermal ablation and biopsy guidance: clinical evaluation of spatial accuracy.
To evaluate the spatial accuracy of electromagnetic needle tracking and demonstrate the feasibility of ultrasonography (US)-computed tomography (CT) fusion during CT- and US-guided biopsy and radiofrequency ablation procedures. ⋯ The demonstrated spatial tracking accuracy is sufficient to display clinically relevant preprocedural imaging information during needle-based procedures. Virtual needles displayed within preprocedural images may be helpful for clandestine targets such as arterial phase enhancing liver lesions or during thermal ablations when obscuring gas is released. Electromagnetic tracking may help improve imaging guidance for interventional procedures and warrants further investigation, especially for procedures in which the outcomes are dependent on accuracy.
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J Vasc Interv Radiol · Sep 2007
CT angiography of the superior vena cava: normative values and implications for central venous catheter position.
To determine normative data for radiographic landmarks of the superior vena cava (SVC) and the location of the junction of the SVC with the right atrium for use in the placement of central venous catheters. ⋯ Placement of the central venous catheter tip at or just below the level of the carina during inspiration ensures placement in the SVC. Placement of the central venous catheter tip approximately 4 cm below the carina will result in placement near the cavoatrial junction.
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J Vasc Interv Radiol · Aug 2007
A prospective evaluation of a quantitative D-dimer assay in the evaluation of acute pulmonary embolism.
A prospective study was designed to determine if a screening quantitative serum D-dimer measurement of 1.0 microg/mL or less precludes pulmonary computed tomographic (CT) angiography in patients with possible acute pulmonary embolism (PE). ⋯ The use of a screening D-dimer measurement of 1.0 microg/mL or less precludes pulmonary CT angiography in patients with possible acute PE. The use of this quantitative D-dimer assay would decrease radiation exposure, contrast medium toxicity, cost, and time for patients seen in the emergency medicine department.
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J Vasc Interv Radiol · Aug 2007
Comparative StudyAngioplasty of long venous stenoses in hemodialysis access: at last an indication for cutting balloon?
To compare the postintervention primary patency rates of cutting balloon angioplasty (CBA) with those of conventional percutaneous transluminal angioplasty (PTA) in the treatment of hemodialysis-related stenoses at least 2 cm long. ⋯ The use of a cutting balloon as the first-line treatment for stenoses at least 2 cm long significantly improves the postintervention primary patency rate.