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Radiology technology

Yujen Tseng, Lili Ma, Tiancheng Luo, Xiaoqing Zeng, Na Li, Yichao Wei, Ji Zhou, Feng Li, Shiyao Chen
Portal hypertension secondary to liver cirrhosis may cause a number of life-threatening complications. The rupture of gastroesophageal varices is associated with a high mortality rate of 15-30%. Hepatic venous pressure gradient (HVPG) is an accurate reflection of disease severity, however this can only be assessed via an invasive interventional procedure. The aim of the present study was to explore a non-invasive method based on 3D computed tomography (CT) volume rendering technology to accurately predict HVPG...
April 2018: Experimental and Therapeutic Medicine
Ji-Hui Zhang, Liu-Jun Zhao
Instability of the cervical spine disease requires surgery to restore stability. In the past, surgical methods were divided into two kinds of anterior and posterior. But each has its own disadvantages:anterior vertebral screw has a higher failure rate, sometimes need a second operation; and posterior pedicle screw, lateral mass screw and facet joint screw may make greater trauma, lead to longer hospitalization. For general instable cervical spine disease, according to the location of the disease, only with the anterior or posterior approach can achieve a stable effect...
January 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
Rüdiger M Zimmerer, Nils-Claudius Gellrich, Sophie von Bülow, Edward Bradley Strong, Edward Ellis, Maximilian E H Wagner, Gregorio Sanchez Aniceto, Alexander Schramm, Michael P Grant, Lim Thiam Chye, Alvaro Rivero Calle, Frank Wilde, Daniel Perez, Gido Bittermann, Nicholas R Mahoney, Marta Redondo Alamillos, Joanna Bašić, Marc Metzger, Michael Rasse, Jan Dittman, Elke Rometsch, Kathrin Espinoza, Ronny Hesse, Carl-Peter Cornelius
PURPOSE: Reconstruction of orbital wall fractures is demanding and has improved dramatically with the implementation of new technologies. True-to-original accuracy of reconstruction has been deemed essential for good clinical outcome, and reasons for unfavorable clinical outcome have been researched extensively. However, no detailed analysis on the influence of plate position and surface contour on clinical outcome has yet been published. MATERIALS AND METHODS: Data from a previous study were used for an ad-hoc analysis to identify predictors for unfavorable outcome, defined as diplopia or differences in globe height and/or globe projection of >2 mm...
February 1, 2018: Journal of Cranio-maxillo-facial Surgery
Les R Folio, Laura B Machado, Andrew J Dwyer
Multimedia-enhanced radiology report (MERR) development is defined and described from an informatics perspective, in which the MERR is seen as a superior information-communicating entity. Recent technical advances, such as the hyperlinking of report text directly to annotated images, improve MERR information content and accessibility compared with text-only reports. The MERR is analyzed by its components, which include hypertext, tables, graphs, embedded images, and their interconnections. The authors highlight the advantages of each component for improving the radiologist's communication of report content information and the user's ability to extract information...
March 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Brian W Dess, John Cardarelli, Mark J Thomas, Jeff Stapleton, Robert T Kroutil, David Miller, Timothy Curry, Gary W Small
A generalized methodology was developed for automating the detection of radioisotopes from gamma-ray spectra collected from an aircraft platform using sodium-iodide detectors. Employing data provided by the U.S Environmental Protection Agency Airborne Spectral Photometric Environmental Collection Technology (ASPECT) program, multivariate classification models based on nonparametric linear discriminant analysis were developed for application to spectra that were preprocessed through a combination of altitude-based scaling and digital filtering...
March 8, 2018: Journal of Environmental Radioactivity
Merle I Ronden, David Palma, Ben J Slotman, Suresh Senan
Distinctive patterns of early and late benign fibrosis are commonly observed after stereotactic ablative radiotherapy (SABR) for lung malignancies. These changes on computed tomographic scans need to be distinguished from so-called 'high-risk' radiological features, which can be associated with a higher risk for tumor recurrence. This pictorial report illustrates the different radiological changes seen following SABR delivered using the volumetric modulated radiotherapy, a technique which is increasingly used in clinical care...
March 5, 2018: Journal of Thoracic Oncology
Lin Shi, Satoshi Tashiro
X-rays are widely applied in the medical field for the diagnosis and treatment of diseases. Among the uses of X-rays in diagnosis, computed tomography (CT) has been established as one of the most informative diagnostic radiology examinations. Moreover, recent advances in CT scan technology have made this examination much easier and more informative and increased its application, especially in Japan. However, the radiation dose of CT scans is higher than that of simple X-ray examinations. Therefore, the health risk of a CT scan has been discussed in various studies, but is still controversial...
March 6, 2018: Journal of Radiation Research
Davood Khezerloo, Hassan Ali Nedaie, Abbas Takavar, Alireza Zirak, Bagher Farhood, Nooshin Banaee, Eisa Alidokht
Aim: Tin-base catalyst is one of the widely used organometallic catalysts in polyurethane technology. The purpose of this study was to evaluate the effect of tin organometallic catalyst in the radiation response and radiological properties of a new formula of PRESAGE® . Materials and Methods: In the study, two types of PRESAGE were fabricated. A very little amount of dibutyltindillaurate (DBTDL) (0.07% weight) was used as a catalyst in the fabrication of new PRESAGE (i...
January 2018: Journal of Cancer Research and Therapeutics
Bart L Dolmatch, John C Gurley, Kevin M Baskin, Boris Nikolic, Jeffrey H Lawson, Surendra Shenoy, Theodore F Saad, Ingemar Davidson, Mark O Baerlocher, Emil I Cohen, Sean R Dariushnia, Salomão Faintuch, Bertrand Janne d'Othee, Thomas B Kinney, Mehran Midia, James Clifton
No abstract text is available yet for this article.
March 1, 2018: Journal of Vascular and Interventional Radiology: JVIR
Ivana Burazor, Sarit Aviel-Ronen, Massimo Imazio, Orly Goitein, Marina Perelman, Natalia Shelestovich, Ninoslav Radovanovic, Vladimir Kanjuh, Iris Barshack, Yehuda Adler
BACKGROUND: To evaluate the prevalence of metastatic tumors involving the myocardium and study their presentation in order to increase awareness to their existence. METHODS: Pathological reports from Sheba Medical Center (Israel, January 1, 2010 through December 31, 2015) and medical records from The Institute for Cardiovascular Diseases of Vojvodina, Sremska Kamenica (Serbia, 23 years period) were screened for cases of metastatic cardiac tumors. Medical, radiological and pathological data of identified cases was retrieved and reviewed...
February 20, 2018: BMC Cancer
Takashi Nishikawa
No abstract text is available yet for this article.
2018: Nihon Hoshasen Gijutsu Gakkai Zasshi
Naohiro Toda, Tetsuo Kobayashi, Taiga Yamaya, Hidetaka Arimura, Yoshikazu Uchiyama, Kensaku Mori, Hiroshi Fujita, Takeshi Hara
No abstract text is available yet for this article.
2018: Nihon Hoshasen Gijutsu Gakkai Zasshi
Christopher M Jones, Alessandro Brunelli, Matthew E Callister, Kevin N Franks
Purpose of review: The majority of patients with non-small cell lung cancer (NSCLC) present with advanced disease and overall survival rates are poor. This article outlines the current and outstanding evidence for the use of multimodality treatment in this group of patients, including in combination with an increasing number of treatment options, such as immunotherapy and genotype-targeted small molecule inhibitors. Recent findings: Optimal therapy for surgically resectable stage III disease remains debatable and currently the choice of treatment reflects each individual patient's disease characteristics and the expertise and opinion of the thoracic multi-disciplinary team...
2018: Current Surgery Reports
Carolina Rabin, Marcello Gomes Gonçalves, Sergio Barbosa Duarte, Gabriel Gonzalez Sprinberg
Radiation treatments of cancer have evolved to include massive particle beams, instead of traditional irradiation procedures. Thus patient doses and workers radiological protection became issues of constant concern for these new technologies, especially for proton- and heavy-ion-therapy. In beam energies of interest of heavy-ion-therapy, secondary particle radiation comes from proton, neutron and neutral and charged pions produced in the nuclear collisions of the beam with human tissue atoms. This work, for the first time, offers the upper bound of meson radiation dose in organic tissues due to secondary meson radiation in heavy-ion therapy...
February 14, 2018: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
Maria A Rueda, Celia Riga, Mohamad S Hamady
Interventional Radiology procedures, equipment and techniques as well as image guidance have developed dramatically over the last few decades. The evidence for minimally invasive interventions in vascular and oncology fields is rapidly growing and several procedures are considered the first line management. However, radiation exposure, image guidance and innovative solutions to known anatomical challenges are still lagging behind. Robotic technology and its role in surgery have been developing at a steady speed...
February 8, 2018: Journal of Cardiovascular Surgery
Lika'a Fasih Y Al-Kzayer, Shamil Naji Sarsam, Nagham Younus Alhur, Tingting Liu, Yozo Nakazawa
Goldenhar´s syndrome (GS) also known as oculo-auriculo-vertebral spectrum (OAVS) is a relatively rare condition. GS is of multifactorial etiology that includes environmental and/or genetic factors, in addition to teratogens that disturb the blastogenesis. A 5-year-old girl from Saudi Arabia, was a member of dizygotic twins conceived by assisted reproductive technology (ART), and born with features of GS. She had asymmetrical face, cleft lip and palate, right microphthalmia and microtia. Radiological imaging showed right maxillary and mandibular bone hypoplasia, asymmetrically enlarged parietal foramina, a persistent midline occipital foramen, abnormal bone arising from occipital bone, extending along tentorium cerebelli, and a lipoma at the right tentorium cerebelli...
January 5, 2018: Oncotarget
Bruna Bolzan, Martina Morosato, Domenico Caponi, Luca Tomasi, Giuseppe Silvestre, Giovanni Morani
OBJECTIVES: Pacemakers and implantable cardioverter defibrillators have become more common in younger individuals, owing to broader indications and technological advances. Our goal was to report our long-term experience of implanting cardiac devices in young adults via a subaxillary approach with a hidden single incision, to minimize the aesthetic impact of the device. METHODS: From 2003 to 2012, 23 patients underwent cardiac device implantation via a subaxillary approach while they were under general anaesthesia...
February 1, 2018: Interactive Cardiovascular and Thoracic Surgery
Kenneth Alan Miles, Julia Squires, Michelle Murphy
RATIONALE AND OBJECTIVE: This study aims to identify potential barriers to the clinical implementation of quantitative imaging for the assessment of tumor heterogeneity. MATERIALS AND METHODS: An 18-month prospective observational study was undertaken in which the clinical implementation of computed tomography texture analysis (CTTA) as a technique for quantifying tumor heterogeneity in patients with non-small cell lung cancer was assessed using the Reach, Effectiveness, Adoption, Implementation, and Maintenance (RE-AIM) framework...
February 2, 2018: Academic Radiology
C Matthew Hawkins, Alexander J Towbin, Derek J Roebuck, Eric J Monroe, Anne E Gill, Avnesh S Thakor, Richard B Towbin, Anne Marie Cahill, Matthew P Lungren
Hepatoblastoma and hepatocellular carcinoma (HCC) are the most common pediatric liver malignancies, with hepatoblastoma occurring more commonly in younger children and HCC occurring more commonly in older children and adolescents. Although surgical resection (including transplant when necessary) and systemic chemotherapy have improved overall survival rate for hepatoblastoma to approximately 80% from 30%, a number of children with this tumor type are not eligible for operative treatment. In contradistinction, pediatric HCC continues to carry a dismal prognosis with an overall 5-year survival rate of 30%...
February 2, 2018: Pediatric Radiology
Malgosia A Kokoszka, Fedor Panov, Maite La Vega-Talbott, Patricia E McGoldrick, Steven M Wolf, Saadi Ghatan
The responsive neurostimulation (RNS) system, an adjunctive treatment for pharmacoresistant partial-onset seizures with 1 or 2 foci, has been available to patients aged 18 years or older since the device's FDA approval in 2013. Herein, the authors describe their off-label application of this technology in 2 pediatric patients and the consequent therapeutic benefit without surgical complications or treatment side effects. A 14-year-old nonambulatory, nonverbal male with severe developmental delay was considered for RNS therapy for medically and surgically refractory epilepsy with bilateral seizure onsets in the setting of a normal radiological examination and a known neuropathological diagnosis of type I cortical dysplasia...
February 2, 2018: Journal of Neurosurgery. Pediatrics
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