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Wortman Jeremy R JR 1 Department of Radiology, Brigham and Women's Hospital, 75 Francis St, Boston, MA - - 2014
OBJECTIVE. The purpose of this study was to measure the effects of use of a structured physician order entry system for trauma CT on the communication of clinical information and on coding practices and reimbursement efficiency. MATERIALS AND METHODS. This study was conducted between April 1, 2011, and January 14, ...
Schwab Nadine A NA Department of Clinical and Health Psychology, University of Florida, 1225 Center Drive, Gainesville, FL, 32611, - - 2014
Brain magnetic resonance image (MRI) registration alters structure orientation, size, and/or shape. To determine whether linear registration methods (image transformation to 6, 9, and 12° of freedom) alter structural volume and cognitive associations, we examined transformation alterations to the caudate nucleus within individuals diagnosed with Parkinson's disease (PD) and demographically ...
Yap Kelvin Kwok-Ho KK Medical Imaging Department, St Vincent's Hospital Melbourne, Melbourne, Victoria, - - 2014
In nuclear medicine, single-photon-emission computed tomography (SPECT) is often combined with 'simultaneous' low-dose CT (LDCT) to provide complementary anatomical and functional correlation. As a consequence, numerous incidental and unexpected findings may be detected on LDCT. Recognition of these findings and appropriate determination of their relevance can add to the utility ...
Elahi Sahar S Department of Biomedical Engineering, University of Texas at Austin, 107 W Dean Keeton Street Stop C0800, Austin, TX, 78712, USA, - - 2014
Accuracy of IVOCT for measurement of neointimal thickness and effect of neointima in the appearance of metallic struts in IVOCT images was investigated. Phantom vessels were constructed and coronary stents were deployed and covered with thick (250-400 μm) and thin (30-70 μm) phantom neointima. High resolution Micro-CT images of the stent struts ...
Lu Hai H Department of Electrical and Computer Engineering, Auburn University, Auburn, Alabama, - - 2014
Radiofrequency coils in MRI are narrowband resonant structures. The high-quality factor makes their performance sensitive to loading and other operating conditions. We developed a new coil to provide volume transmit in a broad frequency band. The proposed coil is a parallel-plate waveguide. When operating in the transverse electromagnetic mode, a ...
Dornia C C Department of Radiology, University Medical Center, - - 2014
Purpose: Magnetic resonance imaging (MRI) is the method of choice for the evaluation of spondyloarthritis (SpA). According to the guidelines of the Assessment of Spondyloarthritis International Society (ASAS) and Outcome Measures in Rheumatology (OMERACT), MRI findings in SpA of the spine and the sacroiliac joints (SIJ) are classified as inflammatory ...
Shigue D A DA Department of Veterinary Surgery and Anesthesiology, School of Veterinary Medicine and Animal Science, Univ Estadual Paulista (UNESP), Rubião Júnior s/n, Botucatu, SP, 18618000, - - 2014
This study aimed to evaluate the stifle joint of marsh deer using imaging studies and in comparison with gross anatomy. Ten hindlimbs from 5 marsh deer (Blastocerus dichotomus) were used. Radiography, computed tomography (CT) and magnetic resonance imaging (MRI) were performed in each stifle joint. Two hindlimbs were dissected to ...
Pallua Johannes Dominikus JD Institute of Legal Medicine, medical university innsbruck, Müllerstraße 44, Innsbruck, Tirol, A-6020, Austria - - 2014
The potential of 3-D nondestructive imaging techniques such as micro-computed tomography (micro-CT) was evaluated to study morphological patterns of the potential medicinal fungus Hericium coralloides (Basidiomycota). Micro-CT results were correlated with histological information gained from scanning electron microscopy (SEM) and light microscopy (LM). It is demonstrated that the combination of ...
Deleon Valerie Burke VB Center for Functional Anatomy and Evolution, Johns Hopkins University School of Medicine, Baltimore, - - 2014
Three-dimensional reconstructions of imaging data are an increasingly common approach for studying anatomical structure. However, certain aspects of anatomy, including microscopic structure and differentiating tissue types, continue to benefit from traditional histological analyses. We present here a detailed methodology for combining data from microCT and histological imaging to create 3D ...
Lee Sun Jin SJ 1 Department of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, 224-1, Heukseok-dong, Dongjak-gu, Seoul 156-755, - - 2014
OBJECTIVE. The objective of our study was to measure thyroid volumes using semiautomated 3D CT and to compare the 3D CT volumes with volumes measured using 2D ultrasound, 2D CT, and the water displacement method. SUBJECTS AND METHODS. In 47 patients, 2D ultrasound volumes and 2D CT volumes of the ...
Gao R - - 2014
A compact all-fiber magnetic field sensor based on the magnetic gel coated hollow core fiber (HCF) has been proposed and experimentally demonstrated. A double-layered Fabry-Perot resonator is formed by coating a magnetic gel layer on the surface of the HCF. Anti-resonant reflecting guidance of light can be achieved in the ...
Burton Rebecca A B RA Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX1 3PT, - - 2014
Cardiac histo-anatomical organization is a major determinant of function. Changes in tissue structure are a relevant factor in normal and disease development, and form targets of therapeutic interventions. The purpose of this study was to test tools aimed to allow quantitative assessment of cell-type distribution from large histology and magnetic ...
Kim Sungho - - 2014
The accumulation of low density lipoprotein (LDL) in the arterial intima is a critical step in the initiation and progression of atheromatous lesions. In this study we examine subject-specific LDL transport into the intima of carotid bifurcations in three human subjects using a three-pore model for LDL mass transfer. Subject-specific ...
Liu Dong D Departments of Radiology and Biomedical Engineering, University of Wisconsin, Madison, Wisconsin - - 2014
To analyze the spatial distribution and temporal development of liver tissue contraction during high-temperature ablation by using intraprocedural computed tomography (CT) imaging. A total of 46 aluminum fiducial markers were positioned in a 60 × 45 mm grid, in a single plane, around a microwave ablation antenna in each of ...
Kang Sang-Hoon SH From the *Department of Oral and Maxillofacial Surgery, National Health Insurance Service, Ilsan Hospital, Goyang-si, Republic of Korea; †Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University, Seoul, Republic of Korea; ‡Department of Oral Maxillofacial Surgery, Stomatological Hospital of Guangzhou Medical College, Guangzhou, - - 2014
Three-dimensional printing and computer-assisted surgery demand a high-precision three-dimensional mesh model created from computed tomography (CT) imaging data using an image-based meshing algorithm. We aimed to evaluate the three-dimensional geometric accuracy of surface meshes produced from CT images with commercially available software packages. The CT images were acquired for 3 ...
Ruppert Kai - - 2014
Hyperpolarized noble gases (HNGs), polarized to approximately 50% or higher, have led to major advances in magnetic resonance (MR) imaging of porous structures and air-filled cavities in human subjects, particularly the lung. By boosting the available signal to a level about 100 000 times higher than that at thermal equilibrium, air ...
Farace Paolo P Proton therapy Unit, APSS, Trento, - - 2014
A two-steps procedure is presented to convert dual-energy CT data to stopping power ratio (SPR), relative to water. In the first step the relative electron density (RED) is calculated from dual-energy CT-numbers by means of a bi-linear relationship: RED = a HUsc(H) + b HUsc(L) + c, where HUsc(H) and ...
Feuillet T T Université de Lyon, CREATIS; CNRS UMR 5220; Inserm U1044; INSA-Lyon; Université Lyon 1, Villeurbanne, France Cirma, Marcy l'Etoile, - - 2014
We demonstrate a method for the fast in vivo quantification of small volumes, down to 25 µL, using low-field magnetic resonance imaging (MRI) coils. The coils were designed so as to maximize the signal-to-noise ratio (SNR) in the images. For this we developed an analytical model for describing the variations of the ...
Akamatsu Y Y Department of Orthopaedic Surgery, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan, - - 2014
To assess which tibial slope measurements on knee, whole leg radiographs and three-dimensional reconstructed computed tomography (CT) were useful in clinical practice before and after opening wedge high tibial osteotomy. Medial and lateral tibial slopes on knee, whole leg radiographs and three-dimensional reconstructed CT were measured in 50 patients with ...
Gaudino Simona S Department of Radiological Sciences, Catholic University, School of Medicine, Largo A. Gemelli 1, 00168, Rome, Italy, - - 2014
Vertebral hemangiomas (VHs) are a frequent and often incidental finding on computed tomography (CT) and magnetic resonance (MR) imaging of the spine. When their imaging appearance is "typical" (coarsened vertical trabeculae on radiographic and CT images, hyperintensity on T1- and T2-weighted MR images), the radiological diagnosis is straightforward. Nonetheless, VHs ...
Prats-Galino Alberto A Laboratory of Surgical NeuroAnatomy, Human Anatomy and Embryology Unit, Faculty of Medicine, Universitat de Barcelona, Barcelona, - - 2014
A 3D model of lumbar structures of anesthetic interest was reconstructed from human magnetic resonance (MR) images and embedded in a Portable Document Format (PDF) file, which can be opened by freely available software and used offline. The MR images were analyzed using a specific 3D software platform for biomedical ...
Zhao Wei W USDA, ARS Horticultural Research Laboratory, Ft. Pierce, - - 2014
Huanglongbing (HLB), presumably caused by bacterium Candidatus Liberibacter asiaticus (CLas), is a devastating citrus disease associated with excessive pre-harvest fruit drop. Lasiodiplodia theobromae (Diplodia) is the causal organism of citrus stem end rot (SER). The pathogen infects citrus fruit under the calyx abscission zone (AZ-C), and is associated with cell ...
van der Vos Charlotte S CS Department of Radiology and Nuclear Medicine, Radboud university medical centre, Nijmegen, The Netherlands; and MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands - - 2014
Respiratory motion during PET has a significant effect on the quantification of radiotracer uptake in PET images. Even when respiratory motion is considered using PET gating techniques, inaccuracies in standardized uptake values can be caused by inappropriate attenuation correction due to a spatial mismatch between PET and CT. In this ...
Hu Lin L High Magnetic Field Laboratory, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, China. - - 2014
Traditionally, magnetic field has long been regarded as an important means for studying the magnetic properties of materials. With the development of synthesis and assembly methods, magnetic field, similar to conventional reaction conditions such as temperature, pressure, and surfactant, has been developed as a new parameter for synthesizing and assembling ...
Wang Feng F Institute of Imaging Science, Vanderbilt University, Nashville, Tennessee, USA; Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, Tennessee, - - 2014
To monitor the spontaneous recovery of cervical spinal cord injury (SCI) using longitudinal multiparametric MRI methods. Quantitative MRI imaging including diffusion tensor imaging, magnetization transfer (MT), and chemical exchange saturation transfer (CEST) were conducted in anesthetized squirrel monkeys at 9.4T. The structural, cellular, and molecular features of the spinal cord ...
Kwon Oh In OI Department of Mathematics, Konkuk University , Seoul , Korea - - 2014
Abstract Purpose: This study shows the potential of magnetic resonance electrical impedance tomography (MREIT) as a non-invasive RF ablation monitoring technique. Materials and methods: We prepared bovine muscle tissue with a pair of needle electrodes for RF ablation, a temperature sensor, and two pairs of surface electrodes for conductivity image ...
Ochs Christopher C Computer Science Department, New Jersey Institute of Technology, Newark, New Jersey, - - 2014
Large and complex terminologies, such as Systematized Nomenclature of Medicine-Clinical Terms (SNOMED CT), are prone to errors and inconsistencies. Abstraction networks are compact summarizations of the content and structure of a terminology. Abstraction networks have been shown to support terminology quality assurance. In this paper, we introduce an abstraction network ...
Brede Jens J 0000000249468160 Institute of Applied Physics and Interdisciplinary Nanoscience Center Hamburg, University of Hamburg, D-20355 Hamburg, - - 2014
The design of nanoscale organic-metal hybrids with tunable magnetic properties as well as the realization of controlled magnetic coupling between them open gateways for novel molecular spintronic devices. Progress in this direction requires a combination of a clever choice of organic and thin-film materials, advanced magnetic characterization techniques with a ...
Kristanto Wisnumurti W Department of Radiology, Center for Medical Imaging - North East Netherlands, University Medical Center Groningen, University of Groningen, PO BOX 30001, 9700RB, Groningen, The - - 2014
Lumen contrast-enhancement influences non-calcified atherosclerotic plaque Hounsfield-unit (HU) values in computed tomography (CT). This study aimed to construct and validate an algorithm to correct for this influence. Three coronary vessel phantoms with 1, 2, and 4 mm circular hollow lumina; with normal and plaque-infested walls were scanned simultaneously in oil using ...
Guo Xiaojuan X College of Information Science and Technology, Beijing Normal University, Beijing, China; State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, - - 2014
To investigate structural covariance networks (SCNs) as measured by regional gray matter volumes with structural magnetic resonance imaging (MRI) from healthy young adults, and to examine their consistency and stability. Two independent cohorts were included in this study: Group 1 (82 healthy subjects aged 18-28 years) and Group 2 (109 ...
Pomerantz M Lucius ML Orthopaedic Surgery Department, University of California San Diego School of Medicine, San Diego, - - 2014
To validate femoral version measurements made from biplanar radiography (BR), three-dimensional (3D) reconstructions (EOS imaging, France) were made in differing rotational positions against the gold standard of computed tomography (CT). Two cadaveric femurs were scanned with CT and BR in five different femoral versions creating ten total phantoms. The native ...
Solomon Justin J Duke University Health System, Department of Radiology, 2424 Erwin Rd. Suite 302, Durham, NC 27705, - - 2014
Realistic three-dimensional (3D) mathematical models of subtle lesions are essential for many computed tomography (CT) studies focused on performance evaluation and optimization. In this paper, we develop a generic mathematical framework that describes the 3D size, shape, contrast, and contrast-profile characteristics of a lesion, as well as a method to ...
Basha Tamer A TA Department of Medicine (Cardiovascular Division), Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, - - 2014
The aim of this study was to implement and evaluate an accelerated three-dimensional (3D) cine phase contrast MRI sequence by combining a randomly sampled 3D k-space acquisition sequence with an echo planar imaging (EPI) readout. An accelerated 3D cine phase contrast MRI sequence was implemented by combining EPI readout with ...
Xu Hua - - 2014
ObjectiveTo study the feasibility and the potential benefits of defining the internal gross tumor volume (IGTV) of hepatocellular carcinoma (HCC) using contrast-enhanced 4D CT images obtained by combining arterial-phase (AP) contrast-enhanced (CE) 3D CT and non-contrast-enhanced (NCE) 4D CT images using deformable registration (DR).MethodsTen HCC patients who had received radiotherapy ...
Arvanitaki Asimina A Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5, - - 2014
We describe a method based on precision magnetometry that can extend the search for axion-mediated spin-dependent forces by several orders of magnitude. By combining techniques used in nuclear magnetic resonance and short-distance tests of gravity, our approach can substantially improve upon current experimental limits set by astrophysics, and probe deep ...
Parlak Zehra Z Mechanical Engineering and Material Science, Duke University, Durham, NC 27708, - - 2014
Contact resonance AFM (CR-AFM) is a scanning probe microscopy technique that utilizes the contact resonances of the AFM cantilever for concurrent imaging of topography and surface stiffness. The technique has not been used in liquid until recently due to analytical and experimental difficulties, associated with viscous damping of cantilever vibrations ...
Wada Kojiro K Department of Neurosurgery, National Defense Medical College , Tokorozawa, Saitama , - - 2014
Objective. We report the technique of three-dimensional computed tomography angiography (3D CTA) + two-dimensional computed tomographic (2D CT) imaging as an adjunct in early surgery for a ruptured anterior communicating artery (ACoA) aneurysm by adopting an anterior interhemispheric approach. These combined imaging modalities provide accurate intraoperative anatomical information. Methods. To ...
Sopena Novales P P Servicio de PET-Medicina Nuclear, Hospital 9 de Octubre, Valencia, España. Electronic address: - - 2014
Nuclear Medicine is a medical specialty that allows modern diagnostics and treatments using radiopharmaceuticals original radiotracers (drugs linked to a radioactive isotope). In Europe, radiopharmaceuticals are considered a special group of drugs and thus their preparation and use are regulated by a set of policies that have been adopted by ...
Fan Qiuyun Q A.A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States ; - - 2014
One of the major goals of the NIH Blueprint Human Connectome Project (HCP) was to map and quantify the white matter connections in the brain using diffusion tractography. Given the prevalence of complex white matter structures, the capability of resolving local white matter geometries with multiple crossings in the diffusion ...
Tafur Monica M Department of Radiology, University of California, San Diego, School of Medicine, 408 Dickinson St., San Diego, CA, 92103-8226, USA, - - 2014
We obtained high-resolution 11.7-T MR images of the pulleys of the flexor tendons in cadaveric toe specimens. A detailed understanding of toe pulley anatomy as seen with MR is likely to be of benefit in recognizing disease and the effects of trauma. Six cadaveric toes were imaged with an 11.7-T ...
Padole Atul A 1 All authors: Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, Founders-202, Boston, MA - - 2014
OBJECTIVE. The purpose of this study was to compare submillisievert chest CT images reconstructed with filtered back projection (FBP), SafeCT, adaptive statistical iterative reconstruction (ASIR), and model-based iterative reconstruction (MBIR) with standard of care FBP images. SUBJECTS AND METHODS. Fifty patients (33 men and 17 women; mean age [± SD], ...
Lin Fan F Department of Radiology, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong 518033, - - 2014
This study aimed to develop features related to the lesion margin and enhancement pattern, which are very important in the radiologic diagnostic process. We also aimed to implement and investigate these features in the computer-aided diagnosis (CAD) of hepatic diseases using computed tomography (CT). We retrospectively analyzed 378 lesions with ...
Boss Andreas A Department of Diagnostic and Interventional Radiology, University Hospital of Zürich, - - 2014
Objectives: The aim of this study was to evaluate combined 2D and 3D dynamic MR urography with respiratory compensation in children with anomalies of the genitourinary tract, allowing for computation of split renal function and assessment of urinary tract obstruction. Methods: Dynamic MR urography was performed in 53 children (3mo ...
Cody Dianna D DD Department of Imaging Physics, University of Texas M.D. Anderson Cancer Center, 1400 Pressler Ave., Unit 1472, Houston, TX, 77030, USA, - - 2014
Automatic exposure control (AEC) is particularly well-suited for pediatric CT scanning. However the importance of the localizer scan portion of exams that relies on AEC is frequently underestimated. This paper explains in detail several crucial aspects of the localizer and their effect on the subsequent cross-sectional (axial or helical) image ...
Stupakiewicz A A Laboratory of Magnetism, Faculty of Physics, University of Bialystok, 15-424 Bialystok, - - 2014
We report a method of imaging of the magnetization reversal process using analysis of real-time images of magnetic domain structures in cylindrically shaped microwires. This method uses wide-field polarizing optical microscopy and is based on the magneto-optical Kerr effect (MOKE). The aperture diaphragm in MOKE microscope was used to control ...
Vinante A A Istituto di Fotonica e Nanotecnologie, CNR - Fondazione Bruno Kessler, I-38123 Povo, Trento, - - 2014
Superconducting Quantum Interference Device (SQUID) microsusceptometers have been widely used to study magnetic properties of materials at microscale. As intrinsically balanced devices, they could also be exploited for direct SQUID-detection of nuclear magnetic resonance (NMR) from micron sized samples, or for SQUID readout of mechanically detected NMR from submicron sized ...
Gajan David D Centre de Résonance Magnétique Nucléaire (RMN) à Très Hauts Champs, Institut des Sciences Analytiques [Centre National de la Recherche Scientifique (CNRS)/Ecole Normale Supérieure (ENS) Lyon/Université Claude Bernard Lyon 1 (UCBL)], Université de Lyon, 69100 Villeurbanne, - - 2014
Hyperpolarization of substrates for magnetic resonance spectroscopy (MRS) and imaging (MRI) by dissolution dynamic nuclear polarization (D-DNP) usually involves saturating the ESR transitions of polarizing agents (PAs; e.g., persistent radicals embedded in frozen glassy matrices). This approach has shown enormous potential to achieve greatly enhanced nuclear spin polarization, but the ...
Cadet Edwin R ER Raleigh Orthopaedic Clinic, 3001 Edwards Mill, Raleigh, NC, 27612, USA, - - 2014
The purpose of our study was to investigate whether advanced, 3D computed tomographic (CT)-generated hip models improves inter-and intra-observer agreement when compared to plain radiographs in identifying femoroacetabular impingement (FAI) morphology. Eight consecutive patients who underwent surgery for FAI pathology were selected for this study. Preoperative CT scan image data ...
Kovtunov Kirill V KV Laboratory of Magnetic Resonance Microimaging, International Tomography Center, SB RAS, 3A Institutskaya St., Novosibirsk 630090 (Russia) and Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090 - - 2014
Parahydrogen induced polarization was employed to prepare a relatively long-lived correlated nuclear spin state between methylene and methyl protons in propane gas. Conventionally, such states are converted into a strong NMR signal enhancement by transferring the reaction product to a high magnetic field in an adiabatic longitudinal transport after dissociation ...
Heiligtag Florian J FJ Laboratory of Multifunctional Materials, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 5, 8093 Zurich, Switzerland. - - 2014
Texturing of magnetic ceramics and composites by aligning and fixing of colloidal particles in a magnetic field is a powerful strategy to induce anisotropic chemical, physical and especially mechanical properties into bulk materials. If porosity could be introduced, anisotropically structured magnetic materials would be the perfect supports for magnetic separations ...
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