Journal of vascular and interventional radiology : JVIR
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J Vasc Interv Radiol · Sep 2008
Comparative StudySimulation in training: one-year experience using an efficiency index to assess interventional radiology fellow training status.
To compare objective fellow and expert efficiency indices for an interventional radiology renal artery stenosis skill set with the use of a high-fidelity simulator. ⋯ Objective efficiency indices for simulated procedures can demonstrate scores directly comparable to the level of clinical experience.
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J Vasc Interv Radiol · Sep 2008
Clinical TrialSafety and efficacy of CT-guided percutaneous cryoablation for renal cell carcinoma.
Image-guided percutaneous cryoablation is a treatment alternative for selected patients with renal cell carcinoma (RCC). The objective of the present study was to present the safety and efficacy of percutaneous cryoablation. ⋯ CT-guided percutaneous cryoablation resulted in complete response for lesions as large as 4 cm. It may also be a viable alternative for nonsurgical candidates with lesions as large as 7 cm. It has a high efficacy rate, and its modest complications are not only comparable to those of other treatment modalities, but also appear to be reversible.
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J Vasc Interv Radiol · Sep 2008
Clinical TrialAcute lower gastrointestinal hemorrhage: minimally invasive management with microcatheter embolization.
To evaluate the efficacy of superselective embolization therapy in the management of acute lower gastrointestinal (LGI) hemorrhage, including any bleeding distal to the ligament of Treitz. ⋯ Superselective embolization may be used for effective, minimally invasive control of acute LGI bleeding.
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J Vasc Interv Radiol · Sep 2008
Factors associated with failed retrieval of the Günther Tulip inferior vena cava filter.
To identify potential factors associated with failed retrieval of the Günther Tulip inferior vena cava (IVC) filter. ⋯ Prolonged dwell time and increasing patient age are associated with failed filter retrieval. However, even filters in place for extended periods can be safely removed.
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J Vasc Interv Radiol · Aug 2008
Comparative Study Clinical TrialTumor response after yttrium-90 radioembolization for hepatocellular carcinoma: comparison of diffusion-weighted functional MR imaging with anatomic MR imaging.
Anatomic magnetic resonance (MR) imaging assessment of hepatocellular carcinoma (HCC) response to yttrium-90 ((90)Y) radioembolization may require 3 months before therapeutic effectiveness can be determined. The relationship between anatomic MR and diffusion-weighted imaging (DWI) changes after (90)Y therapy is unclear. The present study tested the hypothesis that apparent diffusion coefficient (ADC) values on DWI at 1 month precede anatomic tumor size change at 3 months after (90)Y radioembolization. ⋯ HCC tumor response assessed with DWI at 1 month preceded anatomic size changes at 3 months after (90)Y therapy. DWI may assist in early determination of the response or failure of (90)Y therapy for HCC.