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Söderman Tomas T Department of Radiology, Uppsala University Hospital, 751 85, Uppsala, Sweden, - - 2014
To compare CR with CT (static and dynamic) to evaluate upper spine instability and to determine if CT in flexion adds value compared to MR imaging in neutral position to assess compression of the subarachnoid space and of the spinal cord. Twenty-one consecutive patients with atlantoaxial subluxation due to rheumatoid ...
Korhonen Juha J Clinical Research Institute Helsinki University Central Hospital Ltd , Helsinki , - - 2014
Purpose. This study introduces methods to conduct image-guided radiotherapy (IGRT) of the pelvis with either cone-beam computed tomography (CBCT) or planar localization images by relying solely on magnetic resonance imaging (MRI)-based reference images. Material and methods. Feasibility of MRI-based reference images for IGRT was evaluated against kV CBCT (50 scans, ...
Nomura Takafumi T From the *Department of Radiology, Yamaguchi University Graduate School of Medicine; †Department of Radiology, Yamaguchi Grand Medical Center; ‡Department of Radiology, Yamaguchi University Hospital; and §Computer-aided Diagnosis and Biomedical Imaging Research Biomedical Engineering, Applied Medical Engineering Science Graduate School of Medicine, Yamaguchi University, Yamaguchi, - - 2014
To retrospectively investigate the effect of the section thickness used for quantifying dual-energy perfusion computed tomography (DEpCT) during 2- and 3-dimensional evaluation. Sixty-six patients (22 males and 44 females; mean age, 59.3 years) suspected of having an acute pulmonary embolism underwent DEpCT, and 15patients were diagnosed to have intrapulmonary clots ...
Gill Jatinder S JS Anesthesiology, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, - - 2014
The purpose of this study was to compare the reliability of the lateral fluoroscopic view and several contralateral oblique (CLO) views at different angles in visualizing and accurately predicting the position of the needle tip at the point of access in the posterior cervical and cervicothoracic epidural space. After the ...
Otero-Lorenzo Ruth R Departamento de Física Aplicada, Universidade de Vigo, 36310 Vigo, Spain. - - 2014
Hybrid nanocomposites based on ferrimagnetic (FiM) Fe3O4 and magnetoelectric antiferromagnetic (AFM) Cr2O3 nanocrystals were synthesized to offer a particular three-dimensional (3D) interface between the two oxides. This interface favours an intermixing process (demonstrated by combining Raman spectroscopy and magnetization measurements) that determines the final magnetic behavior.
Tyan A E AE From the Department of Radiology, University of Minnesota-Fairview and Hennepin County Medical Centers, Minneapolis, - - 2014
A prior clinical report of 3T MR imaging in subsequently healthy very premature neonates imaged at term-equivalent age found that both gradient recalled-echo-T1WI and spin-echo-T2WI showed higher rates of myelinated structures, compared with spin-echo-T1WI. The current study set out to assess those rates on the same sequences at 3T in ...
Johnston Robyn R Department of Plant Biology, Cornell University, Ithaca, NY, 14853, - - 2014
Leaves develop from the shoot apical meristem (SAM) via recruitment of leaf founder cells. Unlike eudicots, most monocot leaves display parallel venation and sheathing bases wherein the margins overlap the stem. Here we utilized computed tomography (CT) imaging, localization of PIN-FORMED1 (PIN1) auxin transport proteins, and in situ hybridization of ...
Sunding Kerstin K Stockholm Sports Trauma Research Centre/Karolinska Institutet, Capio Artro Clinic AB, Sophiahemmet, Box 5605, 114 86, Stockholm, Sweden, - - 2014
In tendon research, using ultrasound (US), studies often refer to tendon thickness, structural abnormalities and neovascularisation. The reliability concerning these measurements and evaluations is seldom reported. The aim of this study was to assess the intra- and inter-observer reliability for quantitative measures (thickness) and qualitative evaluations (structure and neovascularisation) of ...
Grundmann I N M IN Department of Veterinary Clinical Sciences, The Ohio State University, 601 Vernon Tharp St., Columbus, OH - - 2014
Evaluation of laminitis patients relies on radiographic measurements of the equine foot. Reference values have not been established for all layers of the foot. To establish normal hoof wall and sole measurements using digital radiography (DR) and magnetic resonance imaging (MRI), and to document tissue components present in the dorsal ...
Dal-Bianco Jacob P JP Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, - - 2014
Any structural or functional impairment of the mitral valve (MV) apparatus that exhausts MV tissue redundancy available for leaflet coaptation will result in mitral regurgitation (MR). The mechanism responsible for MV malcoaptation and MR can be dysfunction or structural change of the left ventricle, the papillary muscles, the chordae tendineae, ...
Kim Jinyoung - - 2014
Volumetric segmentation of subcortical structures, such as the basal ganglia and thalamus, is necessary for noninvasive diagnosis and neurosurgery planning. This is a challenging problem due in part to limited boundary information between structures, similar intensity profiles across the different structures, and low contrast data. This paper presents a semiautomatic ...
Aksoy Elif Ayanoglu EA From the Departments of *Otorhinolaryngology and †Radiology, Faculty of Medicine, Acibadem University, Istanbul, - - 2014
The aim of this study was to evaluate the reliability of high-pitch ultra-low-dose computed tomography (CT) for detecting important paranasal sinus anatomic landmarks and pathologies. Sixty patients (22 females, 38 males) aged 15 to 67 years (mean age, 33.68 y; SD, 9.83 y) underwent high-pitch ultra-low-dose CT of the paranasal ...
García Del Salto Laura L From the Department of Radiology, Central Radiodiagnostic Unit, Hospital del Henares, c/Marie Curie s/n, 28822 Coslada, Spain (L.G.d.S., J.d.M.C., L.F.A.d.H., L.G.V., P.F.R., M.M.P., M.I.D.P.d.l.V., A.G.M.S.); and Central Radiodiagnostic Unit, Hospital Infanta Sofía, San Sebastián de los Reyes, Spain - - 2014
Pelvic floor weakness is a functional condition that affects the anatomic structures supporting the pelvic organs: fasciae, ligaments, and muscles. It is a prevalent disorder among people older than 50 years, especially women, and may substantially diminish their quality of life. Many complex causes of pelvic floor weakness have been ...
Sleutjens J J a Department of Clinical Sciences, College of Veterinary Medicine , Mississippi State University , Starkville , MS , - - 2014
Background: The impact of cervical pathology on performance is of great importance to the horse industry. Accurate diagnosis of cervical disease with imaging modalities, including computed tomography (CT) and magnetic resonance imaging (MRI), requires thorough appreciation of normal cervical anatomy. Objectives: (1) To describe in detail the anatomy of the ...
Giles Logan J LJ Department of Chemistry and Chemical Biology, The University of New Mexico , MSC03 2060, 1 University of New Mexico, Albuquerque, New Mexico 87131-0001, United - - 2014
Mo K-edge X-ray absorption spectroscopy has been used to probe as-isolated structures of the MOSC family proteins pmARC-1 and HMCS-CT. The Mo K-edge near-edge spectrum of HMCS-CT is shifted ∼2.5 eV to lower energy compared to the pmARC-1 spectrum, which indicates that as-isolated HMCS-CT is in a more reduced state ...
Zhang Xiao-Dong XD Xiao-Dong Zhang, Department of Medical Imaging, Jinling Hospital, Nanjing Clinical School, Southern Medical University, Nanjing 210002, Jiangsu Province, - - 2014
Hepatic encephalopathy (HE) is a neuropsychiatric complication of cirrhosis or acute liver failure. Currently, HE is regarded as a continuous cognitive impairment ranging from the mildest stage, minimal HE to overt HE. Hyperammonaemia and neuroinflammation are two main underlying factors which contribute to the neurological alterations in HE. Both structural ...
Ohira H H Advanced Heart Disease and Pulmonary Hypertension Programs, National Cardiac PET Centre, Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, 40 Ruskin Street, Room 3409, Ottawa, ON, K1Y 4W7, - - 2014
Pulmonary hypertension (PH) is a disease characterized by a chronic elevation of pulmonary artery pressure from various causes. Pulmonary artery hypertension (PAH) is one of subtype which results in premature death often as a result of right ventricular (RV) dysfunction. In spite of the recent progress in novel cardiac imaging ...
Ashikhmina Elena E From the *Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts; †Department of Anesthesiology, Tufts University School of Medicine, Boston, Massachusetts; and ‡International Heart Institute of Montana, Missoula, - - 2014
The geometric shape of the mitral regurgitation (MR) proximal isovelocity surface area (PISA) is conventionally assumed to be a hemisphere (HS). However, in functional MR, PISA is frequently neither an HS nor a hemiellipse (HE) but is often asymmetric and crescent shaped. We used 3-dimensional transesophageal echocardiographic (3D TEE), full-volume ...
Purohit Bela S BS Department of Imaging, Division of Radiology, Geneva University Hospital, Rue Gabrielle Perret Gentil 4, 1211, Geneva 14, - - 2014
Positron emission tomography-computed tomography (PET/CT) with fluorine-18-fluorodeoxy-D-glucose (FDG) has evolved from a research modality to an invaluable tool in head and neck cancer imaging. However, interpretation of FDG PET/CT studies may be difficult due to the inherently complex anatomical landmarks, certain physiological variants and unusual patterns of high FDG uptake ...
Wang Julie T-W JT Nanomedicine Laboratory, Centre for Drug Delivery Research, UCL-School of Pharmacy, University College London, London WC1N 1AX, UK; Institute of Pharmaceutical Science, King's College London, London SE1 9NH, - - 2014
Carbon nanotubes (CNTs) exhibit unique properties which have led to their applications in the biomedical field as novel delivery systems for diagnosis and therapy purposes. We have previously reported that the degree of functionalization of CNTs is a key factor determining their biological behaviour. The present study broadens the spectrum ...
Lainscsek Claudia C Howard Hughes Medical Institute, Computational Neurobiology Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, U.S.A., and Institute for Neural Computation, University of California San Diego, La Jolla, CA 92093, U.S.A. - - 2014
We propose a time-domain approach to detect frequencies, frequency couplings, and phases using nonlinear correlation functions. For frequency analysis, this approach is a multivariate extension of discrete Fourier transform, and for higher-order spectra, it is a linear and multivariate alternative to multidimensional fast Fourier transform of multidimensional correlations. This method ...
Kaszub Wawrzyniec W Institut de Physique de Rennes, UMR UR1- CNRS 6251, Universite Rennes 1, 35042 Rennes cedex - - 2014
Molecular compounds with photoswitchable magnetic properties have been intensively investigated over the last decades due to their prospective applications in nanoelectronics, sensing and magnetic data storage. The family of copper-nitroxide-based molecular magnets represents a new promising type of photoswitchable compounds. We report the first study of these appealing systems using ...
Chen Chen C Department of Computer Science and Engineering, University of Texas at Arlington, 500 UTA Boulevard, Arlington, TX, - - 2014
Sparsity has been widely utilized in magnetic resonance imaging (MRI) to reduce k-space sampling. According to structured sparsity theories, fewer measurements are required for tree sparse data than the data only with standard sparsity. Intuitively, more accurate image reconstruction can be achieved with the same number of measurements by exploiting ...
Zhou Haibiao H High Magnetic Field Laboratory, Chinese Academy of Sciences and University of Science and Technology of China, Hefei, Anhui 230031, People׳s Republic of China; Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People׳s Republic of - - 2014
We present the design and performance of a simple and compact magnetic force microscope (MFM), whose tip-sample coarse approach is implemented by the piezoelectric tube scanner (PTS) itself. In brief, a square rod shaft is axially spring-clamped on the inner wall of a metal tube which is glued inside the ...
Tang Chiu-Chun CC Department of Physics, National Tsing Hua University, Hsinchu 30013, - - 2014
We have constructed a scanning probe microscope for magnetic imaging, which can function as a scanning Hall probe microscope (SHPM) and as a scanning SQUID microscope (SSM). The scanning scheme, applicable to SHPM and SSM, consists of a mechanical positioning (sub) micron-XY stage and a flexible direct contact to the ...
Wang Yi-Xiang J YX 1 Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China ; 2 School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, - - 2014
This report aims to study the age related T1rho and T2 relaxation time changes in lumbar intervertebral disc. Lumbar sagittal magnetic resonance imaging (MRI) was performed with a 3 Tesla scanner in 52 subjects. With a spin-lock frequency of 500 Hz, T1rho was measured using a rotary echo spin-lock pulse ...
Igaki Hiroshi H Department of Radiology, The University of Tokyo Hospital, Tokyo, - - 2014
To establish intensity-modulated radiotherapy (IMRT) planning procedures that spare the corticospinal tract by integrating diffusion tensor tractography into the treatment planning software. Organs at risk are generally contoured according to the outline of the organ as demonstrated by CT or MRI. But a part of the organ with specific function ...
Maret Delphine D Laboratoire Anthropologie Moléculaire et Imagerie de Synthèse, Université Paul Sabatier, UMR 5288 CNRS, Toulouse, France; Faculté de Chirurgie Dentaire, Université Paul Sabatier, Centre Hospitalier Universitaire, Toulouse, France. Electronic address: - - 2014
Cone-beam computed tomography (CBCT) data are, in principle, metrically exact. However, clinicians need to consider the precision of measurements of dental morphology as well as other hard tissue structures. CBCT spatial resolution, and thus image reconstruction quality, is restricted by the acquisition voxel size. The aim of this study was ...
Kuroda Kagayaki K Graduate School of Engineering, Tokai - - 2014
We evaluated the magnetization of 21 cosmetic contact lens samples that included various coloring materials with a superconducting quantum interference device with regard to magnetic resonance (MR) safety. We found 7 samples were ferromagnetic; two had both ferromagnetic and diamagnetic properties; and the rest were diamagnetic. The saturated magnetization of ...
Lee Sang Heon - - 2014
The current-voltage characteristics and the mechanism of memorized magnetic effect of a BiSrCaCuO superconductor were studied to develop a superconductor device. An external magnetic field produced an out-put voltage across the superconducting sample which increased with increasing the applied magnetic flux. The out-put voltage was not completely disappeared after removal ...
Martinez-Del-Campo Eduardo E Division of Neurological Surgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, - - 2014
Object Performance of MR imaging in patients with gunshot wounds at or near the lumbar spinal canal is controversial. The authors reviewed the literature on the use of MR imaging in gunshot wounds to the spine. They discuss the results from in vitro and clinical studies, analyze the physical properties ...
Turyanska L L School of Physics and Astronomy, The University of Nottingham, Nottingham NG7 2RD, UK. Lyudmila.Turyanska@nottingham.ac.uk - - 2014
We report on PbS colloidal nanocrystals that combine within one structure solubility in physiological solvents with near-infrared photoluminescence, and magnetic and optical properties tuneable by the controlled incorporation of magnetic impurities (Mn). We use high magnetic fields (B up to 30 T) to measure the magnetization of the nanocrystals in ...
Chen Jing-Jing JJ State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, P.R. China. - - 2014
Vacancies can induce local magnetic moments in graphene, paving the way to make magnetic functional graphene. Due to the interaction between magnetic moments and conduction carriers, the magnetotransport properties of graphene can be modulated. Here, the effects of vacancy induced magnetic moments on the electrical properties of graphene are studied ...
Reiss-Zimmermann M M Department of Neuroradiology, University of Leipzig, Liebigstr. 20, 04103, Leipzig, Germany, - - 2014
In recent years Magnetic Resonance Elastography (MRE) emerged into a clinically applicable imaging technique. It has been shown that MRE is capable of measuring global changes of the viscoelastic properties of cerebral tissue. The purpose of our study was to evaluate a spatially resolved three-dimensional multi-frequent MRE (3DMMRE) for assessment ...
Bae Won C WC Department of Radiology, University of California-San Diego, 408 Dickinson St., San Diego, CA, 92103-8226, - - 2014
To quantify MR properties of discs from cadaveric human temporomandibular joints (TMJ) using quantitative conventional and ultrashort time-to-echo magnetic resonance imaging (UTE MRI) techniques and to corroborate regional variation in the MR properties with that of biomechanical indentation stiffness. This study was exempt from the institutional review board approval. Cadaveric ...
Tabasum M R MR Institute of Condensed Matter and Nanosciences-Bio and Soft Matter, Université catholique de Louvain, - - 2014
The magnetic properties of arrays of nanowires (NWs) and nanotubes (NTs), 150 nm in diameter, electrodeposited inside nanoporous polycarbonate membranes are investigated. The comparison of the nanoscopic magnetic force microscopy (MFM) imaging and the macroscopic behavior as measured by alternating gradient force magnetometry (AGFM) is made. It is shown that ...
Nazir Adnan - - 2014
The possibility to develop nano-systems with appreciable magnetic response at optical frequencies has been matter of intense study in the last few years. This aim was strongly hindered by the saturation of the magnetic response of "natural" materials beyond the THz regime. Recently, in order to overcome such limitation, it ...
Seo Jin Keun - - 2014
The tomographic imaging of tissue's electrical properties (e.g., conductivity and permittivity) has been greatly improved by recent developments in magnetic resonance (MR) imaging techniques, which include MR electrical impedance tomography (MREIT) and electrical property tomography. When the biological material is subjected to an external electric field, local changes in its ...
Zhang Yu Y Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, - - 2014
Lactobacillus rhamnosus is a well-known lactic acid bacterium (LAB), but a new ZY strain was isolated for the first time from commercial probiotic powder recently. Although many studies have focused on developing cost-effective media for the production of LAB, the de Man, Rogosa and Sharpe (MRS) medium is still the ...
Xing Fangxu F Elec. and Comput. Eng., Johns Hopkins Univ., 3400 N Charles St., Baltimore, MD 21218, - - 2014
Assessment of tongue muscle mechanics during speech helps interpret clinical observations and provides data that can predict optimal surgical outcomes. Magnetic resonance imaging (MRI) is a non-invasive method for imaging the tongue that provides information about anatomy and motion. In this work, we aim to develop a pipeline to track ...
Sagynbaeva Myskal M Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, PO Box 530, SE-75121, Uppsala, Sweden. Talas State University, Talas, 722720, - - 2014
Using density functional theory (DFT), we report the modulated electronic and magnetic properties of MoS2 nanoribbon by passivating the ribbon edges with H and C separately. For the modeled symmetric MoS2 nanoribbon with a zig-zag type edge, one side is terminated at Mo and the other side is terminated at ...
Wen Shihui S State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, 201620, China; College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, - - 2014
Long-circulating multifunctional Gd(III)-loaded multiwalled carbon nanotubes (MWCNTs) modified with polyethylene glycol are designed and synthesized. The formed MWCNTs are water-dispersible, stable, and have good cytocompatibility and antifouling property. With the low r 2 /r 1 relaxivity ratio and relatively long blood circulation time, the multifunctional MWCNTs are able to be ...
Galbusera Fabio - - 2014
Abstract A numerical method based on contrast-enhanced MRI to predict the transport properties of spinal structures is presented and used for a population of 32 low back pain patients. Sixty-eight one-dimensional finite element models aimed to replicate the transport of Gd-HP-DO3A were developed, one for each intervertebral disc was investigated. ...
Svitova A L AL Leibniz-Institute for Solid State and Materials Research (IFW Dresden), D-01171 Dresden, Germany. y.krupskaya@ifw-dresden.de - - 2014
The magnetic properties of nitride clusterfullerenes GdxSc3-xN@C80 (x = 1-3) are studied as a function of the number of Gd atoms in the cluster. The intracluster interaction of the Gd ions in Gd2ScN@C80 and Gd3N@C80 is ferromagnetic with exchange constants of -1.2 K ± 0.1 K and -0.6 K ± ...
Zabow Gary G Laboratory of Functional and Molecular Imaging, NINDS, National Institutes of Health, Bethesda, MD, 20892, USA; Electromagnetics Division, Physical Measurement Laboratory, National Institute of Standards and Technology, Boulder, CO, 80305, - - 2014
A simple new approach for transforming micro- and nanoscale spheres into eccentric ellipsoids and for generating hollow ellipsoidal shell particles is demonstrated based on a rotating, angled, evaporative deposition process. The resulting ellipsoidal shells possess unique electromagnetic field properties that enable a new form of multispectral labeling agent for magnetic ...
Koay Eugene J - - 2014
The therapeutic resistance of pancreatic ductal adenocarcinoma (PDAC) is partly ascribed to ineffective delivery of chemotherapy to cancer cells. We hypothesized that physical properties at vascular, extracellular, and cellular scales influence delivery of and response to gemcitabine-based therapy. We developed a method to measure mass transport properties during routine contrast-enhanced ...
Zeng Jianfeng J Institute of Chemistry, Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing, 100190, - - 2014
The effect of the anchoring group of surface ligands on the magnetic properties, especially relaxometric properties, of PEGylated Fe3 O4 nanoparticles are investigated. Systematic experimental results together with in-depth theoretical analysis reveal that the ligand binding affinity can largely vary the saturation magnetization, while conjugated anchoring groups can remarkably enhance ...
Guillou François F Fundamental Aspects of Materials and Energy (FAME), Delft University of Technology, Mekelweg 15, 2629, JB, Delft, The - - 2014
Large magnetically driven temperature changes are observed in MnFe(P,Si,B) materials simultaneously with large entropy changes, limited (thermal or magnetic) hysteresis, and good mechanical stability. The partial substitution of B for P in MnFe(P,Si) compounds is found to be an ideal parameter to control the latent heat observed at the Curie ...
Winklhofer Sebastian S From the *Department of Forensic Medicine and Radiology, Institute of Forensic Medicine, †Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Zurich; ‡Department of Forensic Physics and Ballistics, Institute of Forensic Medicine, University of Bern; and §Department of Diagnostic, Interventional and Pediatric Radiology, University Hospital Bern, Bern, - - 2014
The objective of this study was to assess the discriminative power of dual-energy computed tomography (DECT) versus single-energy CT (SECT) to distinguish between ferromagnetic and non-ferromagnetic ballistic projectiles to improve safety regarding magnetic resonance (MR) imaging studies in patients with retained projectiles. Twenty-seven ballistic projectiles including 25 bullets (diameter, 3-15 ...
Brecher Christian - - 2014
Abstract This paper shows the development of a new magnetic resonance imaging (MRI)-compatible guide wire made from fiber-reinforced plastics. The basic material of the developed guide wire is manufactured using a specially developed micro-pullwinding technology, which allows the adjustment of tensile, bending, and torsional stiffness independent from each other. Additionally, ...
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