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ESTUDIOS


01 enero 2016

DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY. A novel modified PAIR technique using a trocar catheter for percutaneous treatment of liver hydatid cysts: a six-year experience

Alaaddin Nayman, Ibrahim Guler, Suat Keskin, Tuba Berra Erdem, Hale Borazan, Ahmet Kucukapan, Huseyin Ozbiner, Abdussamed Batur, Ersen Ertekin, Bahadir Feyzioglu, Osman Koc, Hasan Emin Kaya, Osman Temizoz, Adil Kartal, Orhan Ozbek

PURPOSE: We aimed to demonstrate the success and reliability of a novel puncture, aspiration, injection, and reaspiration (PAIR) technique in liver hydatid cysts.

01 enero 2016

DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY. Clinical outcome of angiosome-oriented infrapopliteal percutaneous transluminal angioplasty for isolated infrapopliteal lesions in patients with critical limb ischemia

Eui-Yong Jeon, Young Kwon Cho, Dae Young Yoon, Dae Jung Kim, Jeong Joo Woo

PURPOSE: We aimed to evaluate the clinical usefulness and outcome of angiosome-oriented percutaneous transluminal angioplasty (IP-PTA) and its clinical outcome for isolated infrapopliteal lesions in diabetic critical limb ischemia.

01 enero 2016

DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY. Silent cerebral emboli following percutaneous closure of atrial septal defect in pediatric patients: a diffusion-weighted MRI study

Gonca Koç, Abdullah Özyurt, Selim Doğanay, Ali Baykan, S. Burcu Görkem, M. Sait Doğan, Özge Pamukçu, Kazım Üzüm, Abdulhakim Coşkun, Nazmi Narin

PURPOSE: The aim of this prospective study was to investigate the incidence of silent cerebrovascular embolic events associated with percutaneous closure of atrial septal defect (ASD) in pediatric patients.

01 enero 2016

DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY. AngioVac extraction of intra-atrial hepatoma masquerading as PICC-associated thrombus

Samir Abboud, Kirtee Raparia, Julianne M. Ubago, Scott Resnick

Thrombus associated with peripherally inserted central catheterization is not uncommon. Treatment is typically conservative; however, more aggressive therapies can be considered in patients with tenuous medical condition. The authors present a patient with metastatic hepatocellular carcinoma masquerading as peripherally inserted central catheter-associated intra-atrial thrombus, subsequently removed via vacuum-assisted mechanical thrombectomy.

01 enero 2015

RADIOLOGY. Perfusion CT for Selecting Patients with Acute Ischemic Stroke for Intravenous Thrombolytic Therapy

Kirsteen R. Burton, MBA, MSc, MD Deljit Dhanoa, MD Richard I. Aviv, MBChB Alan R. Moody, MBBS Moira K. Kapral, MD, MSc Andreas Laupacis, MD, MSc

Purpose: To determine rates of death, disability, and symptomatic intracranial hemorrhage (SICH) among patients with acute ischemic stroke selected for thrombolytic therapy by using perfusion computed tomography (CT) by conducting a systematic review and meta-analysis.

01 enero 2015

RADIOLOGY. Transperineal In-Bore 3-T MR Imaging–guided Prostate Biopsy: A Prospective Clinical Observational Study

Tobias Penzkofer, MD Kemal Tuncali, MD Andriy Fedorov, PhD Sang-Eun Song, PhD Junichi Tokuda, PhD Fiona M. Fennessy, MB, BCh, BAO, PhD Mark G. Vangel, PhD Adam S. Kibel, MD Robert V. Mulkern, PhD William M. Wells, PhD Nobuhiko Hata, PhD Clare M. C. Tempany, MB, BCh, BAO

Purpose: To determine the detection rate, clinical relevance, Gleason grade, and location of prostate cancer (PCa) diagnosed with and the safety of an in-bore transperineal 3-T magnetic resonance (MR) imaging–guided prostate biopsy in a clinically heterogeneous patient population.

01 enero 2015

RADIOLOGY. MR-guided Prostate Biopsy for Planning of Focal Salvage after Radiation Therapy

Cynthia Ménard, MD Douglas Iupati, MBChB Julia Publicover, MSc Jenny Lee, MMath Jessamine Abed, RTT Gerald O’Leary, MB Anna Simeonov, MSc Warren D. Foltz, PhD Michael Milosevic, MD Charles Catton, MD Gerard Morton, MD Robert Bristow, MD, PhD Andrew Bayley, MD Eshetu G. Atenafu, MSc Andrew J. Evans, MD, PhD David A. Jaffray, PhD Peter Chung, MD Kristy K. Brock, PhD Masoom A. Haider, MD

Purpose: To determine if the integration of diagnostic magnetic resonance (MR) imaging and MR-guided biopsy would improve target delineation for focal salvage therapy in men with prostate cancer.

01 febrero 2015

RADIOLOGY. How I Do It: Cone-Beam CT during Transarterial Chemoembolization for Liver Cancer

Vania Tacher, MD Alessandro Radaelli, PhD MingDe Lin, PhD Jean-François Geschwind, MD

Cone-beam computed tomography (CBCT) is an imaging technique that provides computed tomographic (CT) images from a rotational scan acquired with a C-arm equipped with a flat panel detector. Utilizing CBCT images during interventional procedures bridges the gap between the world of diagnostic imaging (typically three-dimensional imaging but performed separately from the procedure) and that of interventional radiology (typically two-dimensional imaging). CBCT is capable of providing more information than standard two-dimensional angiography in localizing and/or visualizing liver tumors (“seeing” the tumor) and targeting tumors though precise microcatheter placement in close proximity to the tumors (“reaching” the tumor). It can also be useful in evaluating treatment success at the time of procedure (“assessing” treatment success). CBCT technology is rapidly evolving along with the development of various contrast material injection protocols and multiphasic CBCT techniques. The purpose of this article is to provide a review of the principles of CBCT imaging, including purpose and clinical evidence of the different techniques, and to introduce a decision-making algorithm as a guide for the routine utilization of CBCT during transarterial chemoembolization of liver cancer.

01 febrero 2015

RADIOLOGY. Robot-assisted Radical Prostatectomy: Multiparametric MR Imaging–directed Intraoperative Frozen-Section Analysis to Reduce the Rate of Positive Surgical Margins

Giuseppe Petralia, MD Gennaro Musi, MD Anwar R. Padhani, MB, BS, FRCR, FRCP Paul Summers, PhD Giuseppe Renne, MD Sarah Alessi, MD Sara Raimondi, PhD Deliu V. Matei, MD, PhD Salvatore L. Renne, MD Barbara A. Jereczek-Fossa, MD, PhD Ottavio De Cobelli, MD Massimo Bellomi, MD

Purpose: To investigate whether use of multiparametric magnetic resonance (MR) imaging–directed intraoperative frozen-section (IFS) analysis during nerve-sparing robot-assisted radical prostatectomy reduces the rate of positive surgical margins.

01 febrero 2015

RADIOLOGY. Carotid Artery Stenosis: Cost-effectiveness of Assessment of Cerebrovascular Reserve to Guide Treatment of Asymptomatic Patients

Ankur Pandya, PhD Ajay Gupta, MD Hooman Kamel, MD Babak B. Navi, MD Pina C. Sanelli, MD, MPH Bruce R. Schackman, PhD

Purpose: To project and compare the lifetime health benefits, health care costs, and incremental cost-effectiveness of a decision rule based on assessment of cerebrovascular reserve (CVR) compared with medical therapy and immediate revascularization in asymptomatic patients with carotid artery stenosis for prevention of stroke.

01 febrero 2015

RADIOLOGY. Severe Bleeding after Percutaneous Transhepatic Drainage of the Biliary System: Effect of Antithrombotic Agents—Analysis of 34 606 Cases from a Japanese Nationwide Administrative Database

Tsuyoshi Hamada, MD, PhD Hideo Yasunaga, MD, PhD Yousuke Nakai, MD, PhD Hiroyuki Isayama, MD, PhD Hiromasa Horiguchi, PhD Kiyohide Fushimi, MD, PhD Kazuhiko Koike, MD, PhD

Purpose: To investigate the relationship between antithrombotic agents (antiplatelet agents and anticoagulants) and severe bleeding after percutaneous transhepatic biliary drainage (PTBD) for biliary obstruction, or cholecystostomy for acute cholecystitis.

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