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Shemesh Noam N Department of Chemical Physics, Weizmann Institute of Science, Rehovot, - - 2014
Interruptions in cerebral blood flow may lead to devastating neural outcomes. Magnetic resonance has a central role in diagnosing and monitoring these insufficiencies, as well as in understanding their underlying metabolic consequences. Magnetic resonance spectroscopy (MRS) in particular can probe ischemia via the signatures of endogenous metabolites including lactic acid ...
Lim Elizabeth Yenn Lynn EY ORL Department, Faculty of Medicine, University Malaya, Kuala Lumpur, Malaysia, - - 2014
High acoustic noise level is one of the unavoidable side effects of 3 T magnetic resonance imaging (MRI). A case of hearing loss after 3 T MRI has been reported in this institution and hence this study. The objective of this study was to determine whether temporary threshold shift (TTS) in high ...
van Grinsven S S Department of Orthopaedics, Rijnstate Hospital, PO Box 9555, 6800 TA, Arnhem, The Netherlands. Electronic address: - - 2014
To prospectively evaluate the influence of observer experience, consensus assessment, and abduction and external rotation (ABER) view on the diagnostic performance of magnetic resonance arthrography (MRA) in patients with traumatic anterior-shoulder instability (TASI). Fifty-eight MRA examinations (of which 51 had additional ABER views) were assessed by six radiologists (R1-R6) and ...
Lugez Elodie E Laboratory for Percutaneous Surgery, School of Computing, Queen's University, Kingston, ON, K7L 3N6, - - 2014
Electromagnetic (EM) tracking of instruments within a clinical setting is notorious for fluctuating measurement performance. Position location measurement uncertainty of an EM system was characterized in various environments, including control, clinical, cone beam computed tomography (CBCT), and CT scanner environments. Static and dynamic effects of CBCT and CT scanning on ...
Wijlemans Joost W JW From the *Department of Radiology, and †Imaging Division, University Medical Center Utrecht, Utrecht, The Netherlands; ‡Philips Medical Systems MR, Vantaa, Finland; and §Image Sciences Institute, University Medical Center Utrecht, Utrecht, The - - 2014
Magnetic resonance-guided high-intensity focused ultrasound (MR-HIFU) allows for noninvasive thermal ablation under real-time temperature imaging guidance. The purpose of this study was to assess the feasibility and safety of MR-HIFU ablation of liver tissue in a clinically acceptable setting. The experimental protocol was designed with a clinical ablation procedure of ...
Smuck Matthew M PM&R Section, Department of Orthopaedic Surgery, Stanford University, Redwood City, California, - - 2014
To quantitatively evaluate interval magnetic resonance imaging (MRI) changes in disc morphology following plasma-mediated percutaneous discectomy. A retrospective comparison of pretreatment and posttreatment MRIs at a single university spine clinic. From a group of 60 consecutively treated patients, 15 met the study inclusion and exclusion criteria. All had either failed ...
Osti Michael M Department for Trauma Surgery and Sports Traumatology, Academic Hospital Feldkirch, Carinagasse 47, 6800, Feldkirch, Austria, - - 2014
For intra- and postoperative evaluation of precise and anatomic graft tunnel position, radiographs (XR) and computed tomography (CT) scans have been suggested. The purpose of this study was to evaluate the reliability and validity of XR and CT for quality assessment following PCL reconstruction. Postoperative radiographs and CT scans were ...
Iwaki Shimpei S Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. - - 2014
Gadolinium(iii) ion (Gd(3+)) complexes are widely used as contrast agents in magnetic resonance imaging (MRI), and many attempts have been made to couple them to sensor moieties in order to visualize biological phenomena of interest inside the body. However, the low sensitivity of MRI has made it difficult to develop ...
Shi Dejing D Department of Ophthalmology, Forth Affiliated Hospital of Harbin Medical University, Harbin, P.R. - - 2014
The aim of this study was to evaluate effects of intermediate frequency magnetic fields (IFMF) generated by a wireless power transmission (WPT) based on magnetic resonance from the perspective of cellular genotoxicity on cultured human lens epithelial cells (HLECs). We evaluated the effects of exposure to 90 kHz magnetic fields at ...
Fries Peter P Clinic of Diagnostic and Interventional Radiology (Geb. 50.1), Saarland University Medical Center, Homburg, - - 2014
Magnetic resonance imaging (MRI) performed at ultra-high field strengths beyond 3 Tesla (T) has become increasingly prevalent in research and preclinical applications. As such, the inevitable clinical implementation of such systems lies on the horizon. The major benefit of ultra-high field MRI is the markedly increased signal-to-noise ratios achievable, enabling acquisition ...
Siebenrock Klaus A KA Department of Orthopaedic Surgery, Inselspital, University of Bern, Freiburgstrasse, 3010, Bern, Switzerland, - - 2014
Cam-type femoroacetabular impingement (FAI) resulting from an abnormal nonspherical femoral head shape leads to chondrolabral damage and is considered a cause of early osteoarthritis. A previously developed experimental ovine FAI model induces a cam-type impingement that results in localized chondrolabral damage, replicating the patterns found in the human hip. Biochemical ...
Tampieri Anna - - 2014
A bio-inspired mineralization process was applied to develop biomimetic hybrid scaffolds made of (Fe2+/Fe3+)-doped hydroxyapatite nanocrystals nucleated on self-assembling collagen fibers and endowed with superparamagnetic properties minimizing the formation of potentially cytotoxic magnetic phases such as magnetite or other iron oxide phases. Magnetic composites were prepared at different temperatures and ...
Mulas Gilberto G Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy; Porto Conte Ricerche Srl, Tramariglio, Alghero (SS), - - 2014
Purpose: To describe and quantify the different relaxation mechanisms operating in suspensions of liposomes that encapsulate paramagnetic lanthanide(III) complexes. Theory and Methods: The transverse relaxation rate of lanthanide-loaded liposomes receives contribution from the exchange between intraliposomal and bulk water protons, and from magnetic susceptibility effects. Phospholipids vesicles encapsulating different Ln(III)-HPDO3A ...
Zhang Zhentao Z From the Department of Internal Medicine, University of Texas Southwestern at Austin, Austin, - - 2014
Paradichlorobenzene (PDB) is an aromatic compound found in several household insect repellents and deodorizers. Paradichlorobenzene may cause dependence and damage when inhaled or ingested. Prior cases of PDB neurotoxicity involved ingestion or inhalation of mothballs or occupational exposure. We report the first case of PDB neurotoxicity from chronic toilet bowl ...
Romano Andrea A San Raffaele Foundation Rome, Rehabilitation Facility Ceglie Messapica, Progetto Merit RBNE08E8CZ, Via della Pisana 235, 00163, Rome, Italy, - - 2014
To assess what kind of information MR examination in flexed and extended positions provides in Down syndrome subjects with suspected cranio-cervical instability. Between 2005 and 2008, 35 subjects with DS were recruited in the study. Ethics committee approval was granted and a signed informed consent was obtained from the parents. ...
Gräfe J L JL Department of Medical Physics and Applied Radiation Sciences, McMaster University, Hamilton, Ontario, Canada - - 2014
Gadolinium (Gd) based contrast agents are routinely used as part of many magnetic resonance imaging (MRI) procedures. The widespread use of these agents and concerns about Gd toxicity, motivated us to develop a monitoring procedure that could non-invasively measure quantitatively potential retention of toxic free Gd in tissues after use ...
Carrera Inés I Division of Diagnostic Imaging, Vetsuisse Faculty, University of Zurich, 8057 Zurich, - - 2014
Objective-To investigate clinical use of proton magnetic resonance spectroscopy ((1)H MRS) and to compare metabolic brain bioprofiles of dogs with and without hepatic encephalopathy. Animals-6 dogs with hepatic encephalopathy and 12 control dogs. Procedures-Conventional MRI and single-voxel (1)H MRS were performed with a 3-T magnet. Images for routine MRI planes ...
Fujiwara Shunro S Neurospin, Bâtiment 145, CEA-Saclay, Gif-sur-Yvette, 91191 Gif-sur-Yvette, France; Department of Neurosurgery, Iwate Medical University, 19-1 Uchimaru, Morioka, 0208505 Iwate, - - 2014
Pathological iron deposits in the brain, especially within basal ganglia, are linked to severe neurodegenerative disorders like Parkinson's disease. As iron induces local changes in magnetic susceptibility, its presence can be visualized with magnetic resonance imaging (MRI). The usual approach, based on iron induced changes in magnetic relaxation (T2/T2'), is ...
Meng Fan F Department of Orthopeadics,Tianjin First Central Hospital,Tianjin 300192,China; Institute of Orthopeadics,Chinese PLA General Hospital,Beijing - - 2014
Objective To establish a new animal model of osteonecrosis of the femoral head by local ethanol injection in emu. Methods Eight milliliter ethanol was injected slowly to the operated femoral head with customized probe in twenty adult male emus. Postoperatively,hip magnetic resonance imaging was performed at 1,4,8,12 weeks. After emus ...
von Morze Cornelius C Department of Radiology and Biomedical Imaging, University of California, San Francisco. Electronic address: - - 2014
In this work we demonstrate for the first time directly detected manganese-55 ((55)Mn) MRI using a clinical 3T MRI scanner designed for human hyperpolarized (13)C clinical studies with no additional hardware modifications. Due to the similar frequency of the (55)Mn and (13)C resonances, the use of aqueous permanganate for large, ...
Gharagouzloo Codi Amir CA Nanomedicine Science and Technology Center, Northeastern University, Boston, Massachusetts, USA; Department of Bioengineering, Northeastern University, Boston, Massachusetts, - - 2014
Conventional MRI using contrast agents is semiquantitative because it is inherently sensitive to extravoxular susceptibility artifacts, field inhomogeneity, partial voluming, perivascular effects, and motion/flow artifacts. Herein we demonstrate a quantitative contrast-enhanced MRI technique using ultrashort time-to-echo pulse sequences for measuring clinically relevant concentrations of ferumoxytol, a superparamagnetic iron oxide nanoparticle ...
Dreiser Jan J Institute of Condensed Matter Physics, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland); Swiss Light Source, Paul Scherrer Institut, 5232 Villigen PSI (Switzerland). - - 2014
The low-temperature magnetic properties of the endohedral metallofullerene HoSc2 N@C80 have been studied by superconducting quantum interference device (SQUID) magnetometry. Alternating current (ac) susceptibility measurements reveal that this molecule exhibits slow relaxation of magnetization in a small applied field with timescales in the order of milliseconds. The equilibrium magnetic properties ...
Ochi Tomoko T Department of Radiology, Nara Medical - - 2014
Purpose: As stereotactic radiotherapy (SRT) becomes widespread, precise information including number, location, and margin of lesions is required when magnetic resonance (MR) imaging of brain metastasis is performed. We compare methods using 2 separate injections and a single injection for the administration of a double dose of contrast medium for ...
Yamaguchi Oura Mao M Department of Neurology and Gerontology, Institute for Biomedical Sciences, Iwate Medical University, Morioka, Japan. Electronic address: - - 2014
Cilostazol is an antiplatelet agent that can induce the regression of atherosclerosis. However, its long-term effects on plaque involution of the cervical carotid arteries remain unknown. Thus, we aimed to evaluate the effect of long-term cilostazol administration on carotid plaques using quantitative magnetic resonance (MR) plaque imaging. Sixteen consecutive patients ...
Wang Yu - - 2014
CXCR4/SDF-1 has been found to be related to the initiation of neuroinflammation in ischemic brain. Herein, we aimed to monitor the changes of neuorinflammation after AMD3100 treatment using TSPO specific PET tracer in a mouse model of stroke. The transient MCAO model was established with Balb/C mice. Success of the ...
Gendler Andrew A WestVet Emergency and Specialty Center, Garden City, ID - - 2014
Comprehensive evaluation of canine elbow joint dysfunction includes assessment of articular cartilage, which can noninvasively be performed with contrast arthrography. Aims of this prospective study were to compare positive contrast computed tomographic (CT) arthrography and histomorphometry measures of cartilage thickness in normal canine elbows, and to determine the optimal contrast ...
Wang Z Z Institute for Medical Science and Technology, University of Dundee, Dundee, - - 2014
Feasibility studies are needed to demonstrate that safe and effective manipulation of bowel during Minimal Access Surgery (MAS) can be obtained by use of magnetic force. This paper characterises two classes of magnetic particles: stainless steel microparticles (SS-μPs) and iron oxide nanoparticles (IO-nPs) in terms of their magnetisation, chemical composition, ...
Shen Lihua L Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, P.R. - - 2014
Self-assembly of viral coating proteins encapsulating functional nanoparticles provides a new class of biomaterials with robust chemical and physical properties for potential applications in functional imaging, and therapeutic or diagnostic agent delivery. Herein, a straightforward method is demonstrated for efficient encapsidation of magnetic nanoparticles into the engineered virus-like particle (VLP) ...
Do Mi Ae MA Department of Advanced Organic Materials Science and Engineering, Kyungpook National University, Daegu 702-701, Republic of - - 2014
The development of iron oxide nanoparticles (IONPs) with enhanced r2 relaxivity is important for achieving greater sensitivity in in vivo magnetic resonance (MR) imaging. In this study, it was considered that polyethyleneimine (PEI) could play a role in varying the particle and cluster sizes in IONP synthesis, leading to different ...
Meshcheriakova O O Graduate School of Excellence "Materials Science in Mainz" Johannes Gutenberg-Universtität, 55099 Mainz, Germany and Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Strasse 40, 01187 Dresden, - - 2014
Noncollinear magnets provide essential ingredients for the next generation memory technology. It is a new prospect for the Heusler materials, already well known due to the diverse range of other fundamental characteristics. Here, we present a combined experimental and theoretical study of novel noncollinear tetragonal Mn_{2}RhSn Heusler material exhibiting unusually ...
Morgan Alexandra R AR Bioxydyn Ltd, Manchester, UK; Centre for Imaging Sciences and Biomedical Imaging Institute, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK. Electronic address: - - 2014
Oxygen-enhanced MRI (OE-MRI) biomarkers have potential value in assessment of COPD, but need further evaluation before treatment-induced changes can be interpreted. The objective was to evaluate how OE-MRI parameters of regional ventilation and oxygen uptake respond to standard pharmacological interventions in COPD, and how the response compares to that of ...
Bharucha Adil E AE Clinical Enteric Neuroscience Translational and Epidemiological Research (C.E.N.T.E.R.) Program, Division of Gastroenterology and Hepatology, College of Medicine, Mayo Clinic, 200 First St. S.W., Rochester, MN 55905, United States. Electronic address: - - 2014
To assess if erythromycin increases gastric emptying and hence improves small intestinal distention during MR enterography. Gastric, small intestinal, and large intestinal volumes were assessed with MR after neutral oral contrast (1350ml in 45min) and balanced randomization to erythromycin (200mg i.v., age 31±3y, 13 females), or placebo (37±3y, 13 females) ...
Molan Abdul-Lateef - - 2014
The effects of condensed tannins (CTs) extracted from pine bark on egg hatching, larval development and the viability of infective L3 larvae of Trichostrongylus colubriformis (Giles, 1892) and Teladorsagia circumcincta (Stadelmann, 1894) (syn. Ostertagia circumcincta) were evaluated using in vitro bioassays. Significant inhibitory effects of CTs were obtained on the ...
Carvalho A A CENIMAT-I3N-DCM, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Campus da Caparica, 2829-515 Caparica, Portugal. Electronic address: - - 2014
Magnetic core coatings modify the efficiency of nanoparticles used as contrast agents for MRI. In studies of these phenomena, care should be given to take into account possible effects of the specific micro-environment where coated nanoparticles are embedded. In the present work, the longitudinal and transverse relaxivities of superparamagnetic iron ...
Tinaz Sule S Human Motor Control Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, - - 2014
Tourette syndrome (TS) is a neuropsychiatric disorder characterized by motor and vocal tics. Most patients describe uncomfortable premonitory sensations preceding the tics and a subjective experience of increased sensitivity to tactile stimuli. These reports indicate that a sensory processing disturbance is an important component of TS together with motor phenomena. ...
Venn R E RE School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow G61 1QH, - - 2014
Noise produced by magnetic resonance imaging (MRI) scanners (which can peak at a sound pressure level of 131 dB) has been shown to cause noise-induced cochlear dysfunction in people. The aim of this study was to investigate whether noise produced during MRI had a deleterious effect on cochlear function in dogs, ...
Tateno Amane A Department of Neuropsychiatry, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, - - 2014
We compared amyloid positron emission tomography (PET) and magnetic resonance imaging (MRI) in subjects clinically diagnosed with Alzheimer's disease (AD), mild cognitive impairment (MCI), and older healthy controls (OHC) in order to test how these imaging biomarkers represent cognitive decline in AD. Fifteen OHC, 19 patients with MCI, and 19 ...
Fraga-Manteiga Eduardo - - 2014
Computed tomography (CT) is commonly used to assess animals with head trauma. However, strongly attenuating objects such as metallic gunshot cause artifacts that may make accurate localization of shrapnel pieces difficult. The purpose of this study was to develop an optimized CT protocol for minimizing metal artifacts in an animal ...
Kester Maartje I MI Alzheimer Center, Department of Neurology, VU University Medical Center, Amsterdam, the - - 2014
IMPORTANCE It remains unclear if and how associations between cerebral small-vessel disease and Alzheimer disease (AD) pathology lead to cognitive decline and dementia. OBJECTIVE To determine associations between small-vessel disease and AD pathology. DESIGN, SETTING, AND PARTICIPANTS Cross-sectional study from January 2002 to December 2012 using the memory clinic-based Amsterdam ...
Poole Victoria N VN a Weldon School of Biomedical Engineering , Purdue University , West Lafayette , - - 2014
With growing evidence of long-term neurological damage in individuals enduring repetitive head trauma, it is critical to detect lower-level damage accumulation for the early diagnosis of injury in at-risk populations. Proton magnetic resonance spectroscopic scans of the dorsolateral prefrontal cortex and primary motor cortex were collected from high school American ...
Cho In K IK 1. Genetics and Molecular Biology Program, Emory University, Atlanta, GA, USA; ; 2. Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA; ; 3. Division of Neuropharmacology and Neurologic Diseases, Yerkes National Primate Research Center, Atlanta, GA, - - 2014
The ability to longitudinally monitor cell grafts and assess their condition is critical for the clinical translation of stem cell therapy in regenerative medicine. Developing an inducible genetic magnetic resonance imaging (MRI) reporter will enable non-invasive and longitudinal monitoring of stem cell grafts in vivo. MagA, a bacterial gene involved ...
Zheng Wei W Department of Applied Science, College of William &Mary, Williamsburg, VA 23187, - - 2014
The interaction between surface plasmons (SP) and magnetic behavior has generated great research interest due to its potential for future magneto-optical devices with ultra-high sensitivity and ultra-fast switching. Here we combine two surface sensitive effects: magnetic second-harmonic generation (MSHG) and SP to enhance the detection sensitivity of the surface magnetization ...
Khomskii D I DI II. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, 50937 Köln, - - 2014
The modelling of magnetic monopoles in solids is a hot topic nowadays. Here, I propose that in solids with the linear magnetoelectric effect there should exist, close to electric charges, magnetic textures of magnetic monopole type. Their existence can lead to rather striking consequences, such as (magneto)electric Hall effect, magnetophotovoltaic ...
Huang Jing J Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, - - 2014
Ultrafine sub-5 nm magnetic iron oxide nanoparticles coated with oligosaccharides (SIO) with dual T1-T2 weighted contrast enhancing effect and fast clearance has been developed as magnetic resonance imaging (MRI) contrast agent. Excellent water solubility, biocompatibility and high stability of such sub-5 nm SIO nanoparticles were achieved by using the "in-situ ...
Tian Xiumei X Department of Biomedical Engineering, Guangzhou Medical University, Guangzhou, Guangdong Province, People's Republic of - - 2014
Poor toxicity characterization is one obstacle to the clinical deployment of Gd2O3@ SiO2 core-shell nanoparticles (Gd-NPs) for use as magnetic resonance (MR) imaging contrast agents. To date, there is no systematic toxicity data available for Gd-NPs prepared by laser ablation in liquid. In this article, we systematically studied the Gd-NPs' ...
Andersson Karin M KM Department of Medical Physics, Örebro University Hospital, Örebro. - - 2014
Metal objects in the body such as hip prostheses cause artifacts in CT images. When CT images degraded by artifacts are used for treatment planning of radiotherapy, the artifacts can yield inaccurate dose calculations and, for particle beams, erroneous penetration depths. A metal artifact reduction software (O-MAR) installed on a ...
Shao Linqin L Chairman, Department of Pediatric Dentistry, Jinan Stomatologic Hospital, Shandong Province, - - 2014
Metallic foreign bodies are rarely found in the maxillary sinus, and usually they have a dental origin. Two main surgical app-roaches are currently used for the removal of foreign bodies in the maxillary sinus: the bone flap and the endoscopic sinus tech-niques. However, the treatment is not only surgical removal. ...
Zilkens Christoph C Medical Faculty, Department of Orthopedic Surgery, University of Düsseldorf, Düsseldorf, Germany. - - 2013
Current measures of the reduced head-neck offset such as residual deformity of slipped capital femoral epiphysis (SCFE) including the alpha angle, which measures the femoral head-neck sphericity but does not account for acetabular abnormalities, do not represent the true magnitude of the deformity and the mechanical consequences. The beta angle ...
Wang Bo-Yao BY Department of Physics, National Taiwan University, Taipei 10617, - - 2013
Interfacial moments of an antiferromagnet are known for their prominent effects of induced coercivity enhancement and exchange bias in ferromagnetic-antiferromagnetic exchange-coupled systems. Here we report that the unpinned moments of an antiferromagnetic face-centered-cubic Mn layer can drive the magnetization of an adjacent Fe film perpendicular owing to a formation of ...
Poustchi Hossein - - 2013
AIM: We sought to evaluate the performance of transient elastography (TE) for the assessment of liver fibrosis in chronic hepatitis C (CHC) patients with beta-thalassemia. METHODS: Seventy-six CHC patients with beta-thalassemia underwent TE, liver biopsy, T2 -weighted magnetic resonance imaging (MRI) for the assessment of liver iron content (LIC) and ...
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