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ESTUDIOS


01 mayo 2012

AMERICAN JOURNAL OF ROENTGENOLOGY. Vascular Thoracic Outlet Syndrome: Protocol Design and Diagnostic Value of Contrast-Enhanced 3D MR Angiography and Equilibrium Phase Imaging on 1.5- and 3-T MRI Scanners

Hale Ersoy, Michael L. Steigner, Karl B. Coyner, Marie D. Gerhard-Herman, Frank J. Rybicki, Raphael Bueno and Louis L. Nguyen

OBJECTIVE. The purpose of this article is to evaluate the efficiency and reproducibility of a contrast-enhanced 3D MR angiography (MRA) protocol, using the provocative arm position on 1.5- and 3-T MRI scanners, and to determine the frequency and distribution of vascular compression and vascular complications in the thoracic outlet.

01 junio 2012

AMERICAN JOURNAL OF ROENTGENOLOGY. Unresectable Pancreatic Cancer: Arterial Embolization to Achieve a Single Blood Supply for Intraarterial Infusion of 5-Fluorouracil and Full-Dose IV Gemcitabine

Toshihiro Tanaka, Masayuki Sho, Hideyuki Nishiofuku, Hiroshi Sakaguchi, Yoshitaka Inaba, Yoshiyuki Nakajima and Kimihiko Kichikaiwa

OBJECTIVE. Response rates to systemic chemotherapy for unresectable pancreatic cancer are low. The purposes of this phases 1 and 2 study of intraarterial therapy were to ascertain the recommended dose of intraarterial chemoinfusion and to evaluate the efficacy and safety of this therapy.

01 junio 2012

AMERICAN JOURNAL OF ROENTGENOLOGY. Percutaneous Radiofrequency Ablation of Hepatocellular Carcinoma: Fusion Imaging Guidance for Management of Lesions With Poor Conspicuity at Conventional Sonography

Min Woo Lee, Hyunchul Rhim, Dong Ik Cha, Young Jun Kim, Dongil Choi, Young-sun Kim and Hyo K. Lim

OBJECTIVE. The purpose of this study was to determine whether fusion imaging–guided percutaneous radiofrequency ablation (RFA) is effective in the management of hepatocellular carcinoma (HCC) that has poor conspicuity at conventional sonography.

21 mayo 2013

WORLD JOURNAL OF GASTROENTEROLOGY. Biliary complications following liver transplantation

Gursimran Kochhar, Jose Mari Parungao, Ibrahim A Hanouneh and Mansour A Parsi.

Biliary tract complications are the most common complications after liver transplantation. These complications are encountered more commonly as a result of increased number of liver transplantations and the prolonged survival of transplant patients. Biliary complications remain a major source of morbidity in liver transplant patients, with an incidence of 5%-32%. Post liver transplantation biliary complications include strictures (anastomotic and non-anastomotic), leaks, stones, sphincter of Oddi dysfunction, and recurrence of primary biliary disease such as primary sclerosing cholangitis and primary biliary cirrhosis. The risk of occurrence of a specific biliary complication is related to the type of biliary reconstruction performed at the time of liver transplantation. In this article we seek to review the major biliary complications and their relation to the type of biliary reconstruction performed at the time of liver tranplantation.

28 mayo 2013

WORLD JOURNAL OF GASTROENTEROLOGY. High-intensity focused ultrasound ablation: An effective bridging therapy for hepatocellular carcinoma patients

Tan To Cheung, Sheung Tat Fan, See Ching Chan, Kenneth SH Chok, Ferdinand SK Chu, Caroline R Jenkins, Regina CL Lo, James YY Fung, Albert CY Chan, William W Sharr, Simon HY Tsang, Wing Chiu Dai, Ronnie TP Poon and Chung Mau Lo.

AIM: To analyze whether high-intensity focused ultrasound (HIFU) ablation is an effective bridging therapy for patients with hepatocellular carcinoma (HCC).

01 junio 2013

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. Prospective Comparison of Hydrogel-coated Microcoils versus Fibered Platinum Microcoils in the Prophylactic Embolization of the Gastroduodenal Artery before Yttrium-90 Radioembolization

Geert Maleux, MD, PhD , Christophe Deroose, MD, PhD , Steffen Fieuws, MSc, PhD , Eric Van Cutsem, MD, PhD , Sam Heye, MD, PhD , Hilde Bosmans, MSc, PhD , Chris Verslype, MD, PhD

Purpose: To prospectively assess the performance of hydrogel-coated versus fibered microcoils in the prophylactic occlusion of the gastroduodenal artery (GDA) before yttrium-90 (90Y) radioembolization.

01 enero 2013

SEMINARS IN INTERVENTIONAL RADIOLOGY. Percutaneous Management of Lymphoceles after Renal Transplantation

Matthew G. Gipson

Chronic kidney disease (CKD) is a worldwide public health problem. In the United States, between 1988-1994 and 2005-2010, the overall prevalence estimate for CKD, defined by an estimation of glomerular filtration rate <60 ml/min per 1.73m2 or a urine albumin-to-creatinine ratio ≥30 mg/g, rose from 12.3 to 14.0%. In 2010, overall per person per year costs for patients with CKD reached $22,323 for Medicare patients ≥65 years and older, and the overall Medicare expenditure for CKD was $41.0 billion, which consisted of 17% of the total Medicare dollars allocated.[1]

01 junio 2012

RADIOLOGY. Obliterative Portal Venopathy: Findings at CT Imaging

Anne-Sophie Glatard, MD, Sophie Hillaire, MD, Gaspard d’Assignies, MD, Dominique Cazals-Hatem, MD, Aurélie Plessier, MD, Dominique C. Valla, MD and Valérie Vilgrain, MD

Purpose: To retrospectively analyze the computed tomographic (CT) findings in a single-center series of adult patients with biopsy-proved obliterative portal venopathy (OPV) and to compare them with those observed in patients with cirrhosis.

01 junio 2012

RADIOLOGY. Chemical Shift MR Imaging Methods for the Quantification of Transcatheter Lipiodol Delivery to the Liver: Preclinical Feasibility Studies in a Rodent Model

Xiaoming Yin, PhD, Yang Guo, MD, Weiguo Li, PhD, Eugene Huo, MD, Zhuoli Zhang, MD, PhD, Jodi Nicolai, MS, Robert A. Kleps, PhD, Diego Hernando, Ph D, Aggelos K. Katsaggelos, PhD, Reed A. Omary, MD, MS and Andrew C. Larson, PhD

Purpose: To demonstrate the feasibility of using chemical shift magnetic resonance (MR) imaging fat-water separation methods for quantitative estimation of transcatheter lipiodol delivery to liver tissues.

01 junio 2012

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. Magnetic Resonance Imaging–guided Volumetric Ablation of Symptomatic Leiomyomata: Correlation of Imaging with Histology

Aradhana M. Venkatesan, MD , Ari Partanen, MSc , Tajana Klepac Pulanic, MD , Matthew R. Dreher, PhD , John Fischer, MD , Robert K. Zurawin, MD , Raja Muthupillai, PhD , Sham Sokka, PhD , Heikki J. Nieminen, PhD , Ninet Sinaii, PhD, MPH , Maria Merino, MD , Bradford J. Wood, MD , Pamela Stratton, MD

Purpose: To describe the preliminary safety and accuracy of a magnetic resonance (MR) imaging–guided high-intensity–focused ultrasound (HIFU) system employing new technical developments, including ablation control via volumetric thermal feedback, for the treatment of uterine leiomyomata with histopathologic correlation.

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