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ESTUDIOS


01 febrero 2016

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. Fluoroscopy-Guided Percutaneous Vertebral Body Biopsy Using a Novel Drill-Powered Device: Technical Case Series

Adam N. Wallace, Rafael A. Pacheco, Anderanik Tomasian, Andy C. Hsi, Jeremiah Long, Randy O. Chang, Jack W. Jennings

Background: A novel coaxial biopsy system powered by a handheld drill has recently been introduced for percutaneous bone biopsy. This technical note describes our initial experience performing fluoroscopy-guided vertebral body biopsies with this system, compares the yield of drill-assisted biopsy specimens with those obtained using a manual technique, and assesses the histologic adequacy of specimens obtained with drill assistance.

01 febrero 2016

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. Aorta Balloon Occlusion in Trauma: Three Cases Demonstrating Multidisciplinary Approach Already on Patient’s Arrival to the Emergency Room

Tal M. Hörer, Dan Hebron, Forat Swaid, Alexander Korin, Offer Galili, Ricardo Alfici, Boris Kessel

Purpose: To describe the usage of aortic balloon occlusion (ABO), based on a multidisciplinary approach in severe trauma patients, emphasizing the role of the interventional radiologist in primary trauma care.

01 febrero 2016

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. CT-Guided Percutaneous Radiologic Gastrostomy for Patients with Head and Neck Cancer: A Retrospective Evaluation in 177 Patients

Akio Tamura, Kenichi Kato, Michiko Suzuki, Miyuki Sone, Ryoichi Tanaka, Tatsuhiko Nakasato, Shigeru Ehara

Purpose: The purpose of this study was to assess the technical success rate and adverse events (AEs) associated with computed tomography (CT)-guided percutaneous gastrostomy for patients with head and neck cancer (HNC).

01 enero 2016

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. Quality Improvement Guidelines for Transjugular Intrahepatic Portosystemic Shunts

Sean R. Dariushnia, MD, Ziv J Haskal, MD, Mehran Midia, MD, FRCPC, Louis G. Martin, MD, T. Gregory Walker, MD, Sanjeeva P. Kalva, MD, Timothy W.I. Clark, MD, Suvranu Ganguli, MD, Venkataramu Krishnamurthy, MD, Cindy K. Saiter, NP, Boris Nikolic, MD, MBA

During the past decade, transjugular intrahepatic portosystemic shunt (TIPS) creation has been established as an effective treatment for variceal bleeding and refractory ascites. Since the 2003 Quality Improvement Guidelines for Transjugular Intrahepatic Portosystemic Shunts (1), numerous additional randomized controlled trials, systematic reviews, and meta-analyses have been published on TIPS creation. The technology of stents has evolved, with polytetrafluoroethylene-covered stents widely used. Moreover, the role interventional radiologists play in the management and complications of portal hypertension has also expanded. Therefore, this document was updated to reflect the foregoing points while emphasizing the current literature and outcomes.

01 enero 2016

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. Image-Guided Biopsy in the Era of Personalized Cancer Care: Proceedings from the Society of Interventional Radiology Research Consensus Panel

Alda L. Tam, MD, Howard J. Lim, MD, Ignacio I. Wistuba, MD, Anobel Tamrazi, MD, PhD, Michael D. Kuo, MD, Etay Ziv, MD, PhD, Stephen Wong, PhD, Albert J. Shih, PhD, Robert J. Webster III, PhD, Gregory S. Fischer, PhD, Sunitha Nagrath, PhD, Suzanne E. Davis, MMS, MBA, Sarah B. White, MD, Kamran Ahrar, MD

Image-guided percutaneous biopsy is a common procedure in oncology that is integral in confirming the diagnosis of cancer, staging the disease, and determining tumor histology. However, in the era of personalized medicine, in which advances in knowledge of specific cellular pathways and characterization of tissue at molecular and genetic levels has resulted in an increase in targeted therapies, the role of the image-guided percutaneous biopsy is evolving.

01 enero 2016

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. Diffusion-Weighted MR Imaging of Hepatocellular Carcinoma: Current Value in Clinical Evaluation of Tumor Response to Locoregional Treatment

Zheng Yuan, MD, Jian Zhang, MD, Huan Yang, MD, Xiao-Dan Ye, MD, Li-Chao Xu, MD, Wen-Tao Li, MD

The established size-based image biomarkers for tumor burden measurement continue to be applied to solid tumors, as size measurement can easily be used in clinical practice. However, in the setting of novel targeted therapies and liver-directed locoregional treatments for hepatocellular carcinoma (HCC), simple tumor anatomic changes can be less informative and usually appear later than biologic changes. Functional magnetic resonance (MR) imaging has the potential to be a promising technique for assessment of HCC response to therapy. Diffusion-weighted MR imaging is now widely used as a standard imaging modality to evaluate the liver. This review discusses the current clinical value of diffusion-weighted MR imaging in the evaluation of tumor response after nonsurgical locoregional treatment of HCC.

01 febrero 2015

AMERICAN JOURNAL OF ROENTGENOLOGY. Survival Outcomes in Patients With Advanced Hepatocellular Carcinoma Treated With Drug-Eluting Bead Chemoembolization

Charles E. Ray Jr., Anthony C. Brown, Tyler J. Green, Helena Winston, Casey Curran, Sarah M. Kreidler, Deborah H. Glueck and Paul J. Rochon

OBJECTIVE. The purpose of this study was to determine the overall survival rates in patients with advanced hepatocellular carcinoma (HCC) who undergo treatment with drug-eluting bead (DEB) therapy.

01 febrero 2015

AMERICAN JOURNAL OF ROENTGENOLOGY. Ultrasound Elastography Using Carotid Artery Pulsation in the Differential Diagnosis of Sonographically Indeterminate Thyroid Nodules

Woo Jung Choi, Jeong Seon Park, Hye Ryoung Koo, Soo-Yeon Kim, Min Sung Chung and Kyung Tae

OBJECTIVE. The purpose of this study was to evaluate the diagnostic performance of gray-scale ultrasound and a new method of thyroid ultrasound elastography using carotid artery pulsation in the differential diagnosis of sonographically indeterminate thyroid nodules.

01 enero 2015

AMERICAN JOURNAL OF ROENTGENOLOGY. An International Multicenter Comparison of Time-SLIP Unenhanced MR Angiography and Contrast-Enhanced CT Angiography for Assessing Renal Artery Stenosis: The Renal Artery Contrast-Free Trial

Timothy S. E. Albert, Masaaki Akahane, Isabelle Parienty, Nancy Yellin, Violeta Catalá, Xavier Alomar, Antoine Prot, Nobuo Tomizawa, Huadan Xue, Venkata S. Katabathina, Jorge E. Lopera and Zhengyu Jin

OBJECTIVE. The unenhanced MR angiography (MRA) technique time-spatial labeling inversion pulse (time-SLIP) may provide a safe alternative for evaluating the renal arteries for stenosis. This international multicenter trial tested the hypothesis that time-SLIP unenhanced MRA is accurate and robust for assessing the renal arteries for stenosis in comparison with contrast-enhanced CT angiography (CTA).

01 enero 2015

AMERICAN JOURNAL OF ROENTGENOLOGY. Utility of 99mTc–Human Serum Albumin Diethylenetriamine Pentaacetic Acid SPECT for Evaluating Endoleak After Endovascular Abdominal Aortic Aneurysm Repair

Motoki Nakai, Hirotatsu Sato, Morio Sato, Akira Ikoma, Tetsuo Sonomura, Yoshiharu Nishimura and Yoshitaka Okamura

OBJECTIVE. The purpose of this study was to assess the utility of 99mTc–human serum albumin diethylenetriamine pentaacetic acid (99mTc-HSAD) SPECT in the detection of endoleaks after endovascular abdominal aortic aneurysm repair.

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