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ABSTRACT


01 junio 2015

CVIR. Percutaneous Endovascular Salvage Techniques for Implanted Venous Access Device Dysfunction

Stéphane Breault, Frédéric Glauser, Malik Babaker, Francesco Doenz, Salah Dine Qanadli

Purpose: Implanted venous access devices (IVADs) are often used in patients who require long-term intravenous drug administration. The most common causes of device dysfunction include occlusion by fibrin sheath and/or catheter adherence to the vessel wall. We present percutaneous endovascular salvage techniques to restore function in occluded catheters. The aim of this study was to evaluate the feasibility, safety, and efficacy of these techniques.

01 junio 2015

CVIR. The Feasibility of Percutaneous Renal Cryoablation Under Local Anaesthesia

Eric de Kerviler, Constance de Margerie-Mellon, Alexandre Coffin, Guillaume Legrand, Matthieu Resche-Rigon, Guillaume Ploussard, Paul Meria, Pierre Mongiat-Artus, François Desgrandchamps, Cédric de Bazelaire

Objectives: The aim of this study was to evaluate the feasibility of cryoablation of renal tumours without sedation.

01 junio 2015

CVIR. Prophylactic Embolization of the Cystic Artery Prior to Radioembolization of Liver Malignancies—An Evaluation of Necessity

Maciej Powerski, Anke Busse, Max Seidensticker, Frank Fischbach, Ricarda Seidensticker, Katharina Strach, Oliver Dudeck, Jens Ricke, Maciej Pech

Purpose: Prior to radioembolization (RE) of hepatic tumors, many centers prophylactically occlude the cystic artery (CA) during evaluation angiography (EVA) to prevent radiation-induced cholecystitis. There is no conclusive evidence for the protective effect of CA embolization and it bears the risk of inducing ischemic cholecystitis. The aim of this study is to evaluate the justification for CA embolization by comparing clinical and morphologic imaging parameters between patients undergoing coil occlusion of the cystic artery (COCA) and those with uncoiled CA (UCCA).

01 junio 2015

CVIR. Drug-Eluting Beads Loaded With Doxorubicin (DEBDOX) Chemoembolisation Before Liver Transplantation for Hepatocellular Carcinoma: An Imaging/Histologic Correlation Study

Xavier Pauwels, Mustapha Azahaf, Guillaume Lassailly, Géraldine Sergent, David Buob, Stéphanie Truant, Emmanuel Boleslawski, Alexandre Louvet, Vivianne Gnemmi, Valérie Canva, Philippe Mathurin, François-René Pruvot, Emmanuelle Leteurtre, Olivier Ernst, Sébastien Dharancy

Purpose: Most transplant centers use chemoembolisation as locoregional bridge therapy for hepatocellular carcinoma (HCC) before liver transplantation (LT). Chemoembolisation using beads loaded with doxorubicin (DEBDOX) is a promising technique that enables delivery of a large quantity of drugs against HCC. We sought to assess the imaging–histologic correlation after DEBDOX chemoembolisation.

01 junio 2015

CVIR. Comparison of Two Types of Double-J Ureteral Stents that Differ in Diameter and the Existence of Multiple Side Holes along the Straight Portion in Malignant Ureteral Strictures

Myung Gyu Song, Tae-Seok Seo, Chang Hee Lee, Kyeong Ah Kim, Jun Suk Kim, Sang Cheul Oh, Jae-Kwan Lee

Purpose: This study was decided to evaluate the impact of diameter and the existences of multiple side holes along the straight portion of double-J ureteral stents (DJUS) on early dysfunction of stents placed for malignant ureteral strictures.

01 junio 2015

CVIR. Percutaneous Transhepatic Biliary Metal Stent for Malignant Hilar Obstruction: Results and Predictive Factors for Efficacy in 159 Patients from a Single Center

Mingwu Li, Ming Bai, Xingshun Qi, Kai Li, Zhanxin Yin, Jianhong Wang, Wenbing Wu, Luanluan Zhen, Chuangye He, Daiming Fan, Zhuoli Zhang, Guohong Han

Aim: To investigate and compare the efficacy and safety of percutaneous transhepatic biliary stenting (PTBS) using a one- or two-stage procedure and determine the predictive factors for the efficacious treatment of malignant hilar obstruction (MHO).

01 junio 2015

CVIR. Embolization by Direct Puncture with a Transpedicular Approach Using an Isocenter Puncture (ISOP) Method in a Patient with a Type II Endoleak After Endovascular Aortic Repair (EVAR)

Yukihisa Ogawa, Shingo Hamaguchi, Hiroshi Nishimaki, Yuri Kon, Kiyoshi Chiba, Yuka Sakurai, Kenji Murakami, Yasunori Arai, Takeshi Miyairi, Yasuo Nakajima

Background: Endovascular aortic repair (EVAR) requires further intervention in 20-30 % of cases, often due to type II endoleak (T2EL). Management options for T2EL include transarterial embolization, direct puncture (DP), or transcaval embolization. We report the case of an 80-year-old man with T2EL who successfully underwent DP embolization.

01 junio 2015

CVIR. An “Off-the-Shelf” System for Intraprocedural Electrical Current Evaluation and Monitoring of Irreversible Electroporation Therapy

Robert E. Neal II, Helen Kavnoudias, Kenneth R. Thomson

Introduction: Irreversible electroporation (IRE) ablation uses a series of brief electric pulses to create nanoscale defects in cell membranes, killing the cells. It has shown promise in numerous soft-tissue tumor applications. Larger voltages between electrodes will increase ablation volume, but exceeding electrical limits may risk damage to the patient, cause ineffective therapy delivery, or require generator restart. Monitoring electrical current for these conditions in real-time enables managing these risks. This capacity is not presently available in clinical IRE generators.

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