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ESTUDIOS


01 febrero 2016

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. Pneumothorax Complicating Coaxial and Non-coaxial CT-Guided Lung Biopsy: Comparative Analysis of Determining Risk Factors and Management of Pneumothorax in a Retrospective Review of 650 Patients

Nour-Eldin A. Nour-Eldin, Mohammed Alsubhi, Ahmed Emam, Thomas Lehnert, Martin Beeres, Volkmar Jacobi, Tatjana Gruber-Rouh, Jan-Erik Scholtz, Thomas J. Vogl, Nagy N. Naguib

Purpose: To assess the scope and determining risk factors related to the development of pneumothorax throughout CT-guided biopsy of pulmonary lesions in coaxial and non-coaxial techniques and the outcome of its management.

01 febrero 2016

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. First Delayed Resection Findings After Irreversible Electroporation (IRE) of Human Localised Renal Cell Carcinoma (RCC) in the IRENE Pilot Phase 2a Trial

Johann Jakob Wendler, Jens Ricke, Maciej Pech, Frank Fischbach, Julian Jürgens, Sandra Siedentopf, Albert Roessner, Markus Porsch, Daniel Baumunk, Martin Schostak, Jens Köllermann , Uwe-Bernd Liehr

It is postulated that focal IRE affords complete ablation of soft-tissue tumours while protecting the healthy peritumoral tissue. Therefore, IRE may be an interesting option for minimally invasive, kidney-tissue-sparing, non-thermal ablation of renal tumours.

01 febrero 2016

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. Percutaneous Renal Tumor Ablation: Radiation Exposure During Cryoablation and Radiofrequency Ablation

James C. McEachen, Shuai Leng, Thomas D. AtwellAffiliated with Department of Radiology, Mayo Clinic , Matthew K. Tollefson, Jeremy L. Friese, Zhen Wang, M. Hassan Murad, Grant D. Schmit

Once reserved solely for non-surgical cases, percutaneous ablation is becoming an increasingly popular treatment option for a wider array of patients with small renal masses and the radiation risk needs to be better defined as this transition continues.

01 febrero 2016

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. Feeding Arteries of Primary Tongue Cancers on Intra-arterial Infusion Chemotherapy

Takeshi Kamitani, Satoshi Kawanami, Yoshiki Asayama, Yoshio Matsuo, Masato Yonezawa, Yuzo Yamasaki, Michinobu Nagao, Torahiko Yamanouchi, Hidetake Yabuuchi, Katsumasa Nakamura, Torahiko Nakashima, Hiroshi Honda

Purpose: To evaluate the frequency and the predictive factor of each feeding artery on intra-arterial infusion chemotherapy (IAIC) in primary tongue cancer.

01 febrero 2016

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. High Residual Collagen-Induced Platelet Reactivity Predicts Development of Restenosis in the Superficial Femoral Artery After Percutaneous Transluminal Angioplasty in Claudicant Patients

Thomas Gary, Florian Prüller, Reinhard Raggam, Elisabeth Mahla, Philipp Eller, Franz Hafner, Marianne Brodmann

Purpose: Although platelet reactivity is routinely inhibited with aspirin after percutaneous angioplasty (PTA) in peripheral arteries, the restenosis rate in the superficial femoral artery (SFA) is high. Interaction of activated platelets and the endothelium in the region of intervention could be one reason for this as collagen in the subendothelium activates platelets.

01 febrero 2016

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. Endovascular Management of Acute Embolic Occlusion of the Superior Mesenteric Artery: A 12-Year Single-Centre Experience

J. Raupach, M. Lojik, V. Chovanec, O. Renc, M. Strýček, P. Dvořák, P. Hoffmann, I. Guňka, A. Ferko, P. Ryška, N. Omran, A. Krajina, P. Čabelková, E. Čermáková, R. Malý

Purpose: Retrospective evaluation of 12-year experience with endovascular management of acute mesenteric ischemia (AMI) due to embolic occlusion of the superior mesenteric artery (SMA).

01 febrero 2016

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. Clinical Long-Term Outcome and Reinterventional Rate After Uterine Fibroid Embolization with Nonspherical Versus Spherical Polyvinyl Alcohol Particles

Stevo Duvnjak, Pernille Ravn, Anders Green, Poul Erik Andersen

Purpose: This study was designed to evaluate the long-term clinical outcome and frequency of reinterventions in patients with uterine fibroids treated with embolization at a single center using polyvinyl alcohol microparticles.

01 febrero 2016

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. Radiation Exposure in Transjugular Intrahepatic Portosystemic Shunt Creation

Roberto Miraglia, Luigi Maruzzelli, Kelvin Cortis, Mario D’Amico, Gaetano Floridia, Giuseppe Gallo, Corrado Tafaro, Angelo Luca

Purpose: Transjugular intrahepatic portosystemic shunt (TIPS) creation is considered as being one of the most complex procedures in abdominal interventional radiology. Our aim was twofold: quantification of TIPS-related patient radiation exposure in our center and identification of factors leading to reduced radiation exposure.

01 enero 2015

AMERICAN JOURNAL OF ROENTGENOLOGY. CT-Guided Fine-Needle Aspiration and Core Needle Biopsies of Pulmonary Lesions: A Single-Center Experience With 750 Biopsies in Japan

Jumpei Takeshita, Katsuhiro Masago, Ryoji Kato, Akito Hata, Reiko Kaji, Shiro Fujita and Nobuyuki Katakami

OBJECTIVE. CT-guided lung biopsy is a well-established diagnostic method for pulmonary lesions. The aim of our study was to evaluate the diagnostic outcomes and safety profile of conventional CT–guided lung biopsies.

01 febrero 2016

RADIOLOGY. Superselective Chemoembolization of HCC: Comparison of Short-term Safety and Efficacy between Drug-eluting LC Beads, QuadraSpheres, and Conventional Ethiodized Oil Emulsion

Feng Duan, MD, Ellen Q. Wang, BA, Marnix G. E. H. Lam, MD, PhD, Mohamed H. K. Abdelmaksoud, MD, MS, John D. Louie, MD, Gloria L. Hwang, MD, Nishita Kothary, MD, William T. Kuo, MD, Lawrence V. Hofmann, MD, Daniel Y. Sze, MD, PhD

Transcatheter arterial chemoembolization (TACE) is the most commonly used local-regional treatment for unresectable hepatocellular carcinoma (HCC). The convention for decades has been to deliver concentrated chemotherapeutic solutions in an ethiodized oil emulsion (Ethiodol; Savage Laboratories, Melville, NY), with or without particulate embolization, which results in a favorable pharmacokinetic profile. However, this technique may result in inconsistent drug delivery and retention. Alternative vehicles have been developed by using calibrated ion-exchange polymer microspheres to allow consistent embolization and a predictable retention and elution of agents such as doxorubicin. Commercially available drug-eluting microsphere products include LC Beads (Biocompatibles/BTG, Farnham, United Kingdom) and QuadraSpheres (BioSphere/Merit Medical, South Jordan, Utah). These new vehicles may offer the opportunity to implement a higher level of standardization to HCC treatment.

01 febrero 2016

RADIOLOGY. Percutaneous Radiofrequency Ablation of Colorectal Cancer Liver Metastases: Factors Affecting Outcomes—A 10-year Experience at a Single Center

Waleed Shady, MD, Elena N. Petre, MD, Mithat Gonen, PhD, Joseph P. Erinjeri, MD, PhD, Karen T. Brown, MD, Anne M. Covey, MD, William Alago, MD, Jeremy C. Durack, MD, Majid Maybody, MD, Lynn A. Brody, MD, Robert H. Siegelbaum, MD, Michael I. D’Angelica, MD, William R. Jarnagin, MD, Stephen B. Solomon, MD, Nancy E. Kemeny, MD, Constantinos T. Sofocleous, MD, PhD

Purpose: To identify predictors of oncologic outcomes after percutaneous radiofrequency ablation (RFA) of colorectal cancer liver metastases (CLMs) and to describe and evaluate a modified clinical risk score (CRS) adapted for ablation as a patient stratification and prognostic tool.

01 febrero 2016

RADIOLOGY. Pulmonary Embolism Detection with Three-dimensional Ultrashort Echo Time MR Imaging: Experimental Study in Canines

Peter Bannas, MD, Laura C. Bell, PhD, Kevin M. Johnson, PhD, Mark L. Schiebler, MD, Christopher J. François, MD, Utaroh Motosugi, PhD, Daniel Consigny, BA, Scott B. Reeder, MD, PhD, Scott K. Nagle, MD, PhD

Purpose: To demonstrate the feasibility of free-breathing three-dimensional (3D) radial ultrashort echo time (UTE) magnetic resonance (MR) imaging in the simultaneous detection of pulmonary embolism (PE) and high-quality evaluation of lung parenchyma.

01 febrero 2016

RADIOLOGY. SPIO-labeled Yttrium Microspheres for MR Imaging Quantification of Transcatheter Intrahepatic Delivery in a Rodent Model

Weiguo Li, PhD, Zhuoli Zhang, MD, PhD, Andrew C. Gordon, BS, Jeane Chen, BS, Jodi Nicolai, MS, Robert J. Lewandowski, MD, Reed A. Omary, MD, MS, Andrew C. Larson, PhD

Purpose: To investigate the qualitative and quantitative impacts of labeling yttrium microspheres with increasing amounts of superparamagnetic iron oxide (SPIO) material for magnetic resonance (MR) imaging in phantom and rodent models.

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