01 febrero 2016

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. A Cross-Sectional Survey of Interventional Radiologists and Vascular Surgeons Regarding the Cost and Reimbursement of Common Devices and Procedures

Angela Wang, BA, Stephanie L. Dybul, BSRT(R)(VI), CIRCC, Parag J. Patel, MD, MS, Sean M. Tutton, MD, FSIR, Cheong J. Lee, MD, Sarah B. White, MD, MS

Purpose: To evaluate knowledge of interventional radiologists (IRs) and vascular surgeons (VSs) on the cost of common devices and procedures and to determine factors associated with differences in understanding.

01 febrero 2016

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. Long-Term Changes in Aortic Length after Thoracic Endovascular Aortic Repair

Nagy N.N. Naguib, MSc, MD, Barbora Zima, cand.med., Nour-Eldin A. Nour-Eldin, MD, Tatjana Gruber-Rouh, MD, Sebastian Fischer, MD, Boris Schulz, MD, Katrin Eichler, MD, Thomas Schmitz-Rixen, MD, Anton Moritz, MD, Jörn O. Balzer, MD, Hanns Ackermann, MD, Thomas J. Vogl, MD, Stephan Zangos, MD

Purpose: To study long-term changes to the thoracic aorta following thoracic endovascular aortic repair (TEVAR) for treatment of different aortic pathologic conditions.

15 octubre 2015

INTERNATIONAL JOURNAL OF CARDIOLOGY. A cross-sectional imaging study to identify organs at risk of thermal injury during renal artery sympathetic denervation

Hitesh C. Patel, Sofia Otero, Joanna B. Moser, Carl Hayward, Stuart D. Rosen, Alexander R. Lyon, Raad Mohiaddin, Carlo di Mario, Simon Padley

Background: The technology used to perform catheter-based renal artery sympathetic denervation has evolved: catheters can now access arteries as small as 3 mm in diameter and create ablation zones of up to 10 mm in depth. Recent evidence suggests that the procedure may be more effective if a more thorough ablation strategy is employed. Limited data are available regarding inadvertent soft tissue thermal injury during such procedures. We used computed tomography (CT) to identify structures lying within the expected thermal ablation field or the ‘at risk zone’ (ARZ).

15 diciembre 2015

INTERNATIONAL JOURNAL OF CARDIOLOGY. Catheter-based renal denervation for resistant hypertension: Twenty-four month results of the EnligHTN™ I first-in-human study using a multi-electrode ablation system

Costas P. Tsioufis, Vasilios Papademetriou, Kyriakos S. Dimitriadis, Alexandros Kasiakogias, Dimitrios Tsiachris, Matthew I. Worthley, Ajay R. Sinhal, Derek P. Chew, Ian T. Meredith, Yuvi Malaiapan, Costas Thomopoulos, Ioannis Kallikazaros, Dimitrios Tousoulis, Stephen G. Worthley

Background: Long term safety and efficacy data of multi-electrode ablation system for renal denervation (RDN) in patients with drug resistant hypertension (dRHT) are limited.

01 octubre 2015

CATHETERIZATION & CARDIOVASCULAR INTERVENTIONS. Retrievable inferior vena cava filters can be placed and removed with a high degree of success: Initial experience

Kevin P. Cohoon DO, MSC, Joseph McBride MD, Jeremy L. Friese MD, MBA and Ian R. McPhail MD

Background: Retrievable IVC filters became readily available in the United States following Food and Drug Administration approval in 2003, and their use has increased dramatically. They represent an attractive option for patients with contraindications to anticoagulation who may only need short-term protection against pulmonary embolism.

01 diciembre 2015

CATHETERIZATION & CARDIOVASCULAR INTERVENTIONS. Laser in infrapopliteal and popliteal stenosis 2 study (LIPS2): Long-term outcomes of laser-assisted balloon angioplasty versus balloon angioplasty for below knee peripheral arterial disease

Chatchawan Piyaskulkaew MD, Kesav Parvataneni MD, Hussein Ballout MD, Susan Szpunar PhD, Tarun Sharma MD, Mohamed Almahmoud MD, Thomas LaLonde MD, Thomas Davis MD, Rajendra H. Mehta MD and Hiroshi Yamasaki MD

Background: Laser-assisted balloon angioplasty (LABA) has been shown to be more effective in achieving angiographic success for treatment for below knee peripheral artery disease (PAD) compared with balloon angioplasty alone(BA). However, long-term outcomes of LABA compared with BA for popliteal and infrapopliteal PAD are unknown.

02 septiembre 2015

AMERICAN HEART ASSOCIATION. Risk of Rupture or Dissection in Descending Thoracic Aortic Aneurysm

Joon Bum Kim, MD, PhD; Kibeom Kim, BA; Mark E. Lindsay, MD, PhD; Thomas MacGillivray, MD; Eric M. Isselbacher, MD; Richard P. Cambria, MD; Thoralf M. Sundt III, MD

Background: Current practice guidelines recommend surgical repair of large thoracic aortic aneurysms to prevent fatal aortic dissection or rupture, but limited natural history data exist to support clinical criteria for timely intervention.

01 diciembre 2015

CATHETERIZATION & CARDIOVASCULAR INTERVENTIONS. The use of the AVERT system to limit contrast volume administration during peripheral angiography and intervention

Anand Prasad MD, FACC, FSCAI, Carolina Ortiz-Lopez MD, David M. Kaye MBBS, PhD, FRACP, FACC, FESC, Melissa Byrne PhD, Shane Nanayakkara MBBS, S. Hinan Ahmed MD, FACC, FSCAI, Steven R. Bailey MD, FACC, MSCAI, Roxana Mehran MD, FACC, FSCAI, Salil Sethi MD, Avantika Banerjee BS and Marvin Eng MD, FACC, FSCAI

Background: The AVERTTM Contrast Modulation System (AVERT) (Osprey Medical, MN) is designed to reduce contrast volume administration during angiography. The AVERT provides an adjustable resistance circuit which decreases the pressure head delivering contrast towards the patient. The AVERT has not been previously studied in patients undergoing peripheral digital subtraction angiography (DSA). The purpose of this study was (1) to evaluate contrast savings with the AVERT and (2) to evaluate the ability to generate clinically acceptable DSA images in the process. To better define the mechanism of action in the peripheral circulation, we also developed a bench model to study the effects of the AVERT on the hydrodynamics of contrast delivery.

01 diciembre 2015

AMERICAN HEART ASSOCIATION. Safety and Effectiveness of Stent Placement for Iliofemoral Venous Outflow Obstruction

Mahmood K. Razavi, MD, Michael R. Jaff, DO and Larry E. Miller, PhD

Background: Endovenous recanalization of iliofemoral stenosis or occlusion with angioplasty and stent placement has been increasingly used to maintain long-term venous patency in patients with iliofemoral venous outflow obstruction. The purpose of this systematic review and meta-analysis was to determine safety and effectiveness of venous stent placement in patients with iliofemoral venous outflow obstruction.

01 diciembre 2015

RADIOLOGY. Effect of Change in Portal Venous Blood Flow Rates on the Performance of a 2.45-GHz Microwave Ablation Device

Gerald D. Dodd III, MD , Sarah M. Kreidler, DPT, MS , Anthony C. Lanctot, MS , Deborah H. Glueck, PhD

Purpose: To investigate the effect of change in portal venous blood flow rates on the size and shape of ablations created by a 2.45-GHz microwave ablation device.

01 diciembre 2015

RADIOLOGY. Cost-Effectiveness of Carotid Plaque MR Imaging as a Stroke Risk Stratification Tool in Asymptomatic Carotid Artery Stenosis

Ajay Gupta, MD , Alvin I. Mushlin, MD, ScM , Hooman Kamel, MD , Babak B. Navi, MD , Ankur Pandya, PhD

Purpose: To evaluate the cost-effectiveness of a decision-making rule based on the magnetic resonance (MR) imaging assessment of intraplaque hemorrhage (IPH) in patients with asymptomatic carotid artery stenosis.

01 diciembre 2015

RADIOLOGY. Feasibility of a Modified Cone-Beam CT Rotation Trajectory to Improve Liver Periphery Visualization during Transarterial Chemoembolization

Rüdiger E. Schernthaner, MD, Julius Chapiro, MD, Sonia Sahu, BA, Paul Withagen, PhD, Rafael Duran, MD, Jae Ho Sohn, MS, Alessandro Radaelli, PhD, Imramsjah Martin van der Bom, PhD, Jean-François H. Geschwind, MD, MingDe Lin, PhD

Purpose: To compare liver coverage and tumor detectability by using preprocedural magnetic resonance (MR) images as a reference, as well as radiation exposure of cone-beam computed tomography (CT) with different rotational trajectories.

01 diciembre 2015

RADIOLOGY. Adrenal Vein Sampling in Primary Aldosteronism: Sensitivity and Specificity of Basal Adrenal Vein to Peripheral Vein Cortisol and Aldosterone Ratios to Confirm Catheterization of the Adrenal Vein

Jean-Philippe Mailhot, MD, Manuela Traistaru, MD, Gilles Soulez, MD, Martin Ladouceur, PhD, Marie-France Giroux, MD, Patrick Gilbert, MD, Ping Shi Zhu, MD, Isabelle Bourdeau, MD, Vincent L. Oliva, MD, André Lacroix, MD, Eric Therasse, MD

Purpose: To assess the sensitivity and specificity for ratios of adrenal vein cortisol level (Ca) to peripheral vein cortisol level (Cp), adrenal vein aldosterone level (Aa) to peripheral vein aldosterone level (Ap), and combined cortisol and aldosterone levels (“combined ratio”) for the detection of successful adrenal vein catheterization (“selectivity”) in adrenal vein sampling (AVS) without adrenocorticotropic hormone (ACTH) injection at different cutoff values.

01 diciembre 2015

RADIOLOGY. Radiofrequency Ablation Using a Multiple-Electrode Switching System for Lung Tumors with 2.0–5.0-cm Maximum Diameter: Phase II Clinical Study

Hiroshi Kodama, MD, Koichiro Yamakado, MD, PhD, Takaaki Hasegawa, MD, Masashi Fujimori, MD, Takashi Yamanaka, MD, Haruyuki Takaki, MD, PhD, Junji Uraki, MD, PhD, Atsuhiro Nakatsuka, MD, PhD, Hajime Sakuma, MD, PhD

Purpose: To prospectively evaluate the safety and effectiveness of radiofrequency ablation (RFA) by using a multiple-electrode switching system to treat 2.0–5.0-cm lung tumors.

01 diciembre 2015

RADIOLOGY. Hepatocellular Carcinoma: A Phase II Randomized Controlled Double-Blind Trial of Transarterial Chemoembolization in Combination with Biweekly Intravenous Administration of Bevacizumab or a Placebo

Matthias Pinter, MD, Gregor Ulbrich, MD, Wolfgang Sieghart, MD, Claus Kölblinger, MD, Thomas Reiberger, MD, Shuren Li, MD, Arnulf Ferlitsch, MD, Christian Müller, MD, Johannes Lammer, MD, Markus Peck-Radosavljevic, MD

Purpose: To investigate the efficacy and safety of conventional transarterial chemoembolization (TACE) (cTACE) in combination with bevacizumab or a placebo in patients with hepatocellular carcinoma (HCC) in a randomized controlled double-blind phase II trial.