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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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
Xiao Yiming Y McConnell Brain Imaging Center, Montreal Neurological Institute and Hospital, McGill University, 3801 University Street, Montreal, QC, H3A 2B4, Canada, - - 2014
Parkinson's disease (PD) is a neurodegenerative disorder that impairs the motor functions. Both surgical treatment and study of PD require delineation of basal ganglia nuclei morphology. While many automatic volumetric segmentation methods have been proposed for the lentiform nucleus, few have attempted to identify the key brainstem substructures including the ...
Kochav Jonathan J Duke University School of Medicine, Durham, North Carolina; Weill Cornell Medical College, New York, New - - 2014
Right ventricular (RV) structure and function is of substantial importance in a broad variety of clinical conditions. Cardiac magnetic resonance (CMR) and computed tomography (CT) each provide three-dimensional RV imaging, high-resolution evaluation of RV structure/anatomy, and accurate functional assessment without geometric assumptions. This is of particular significance for the RV, ...
Monet Antoine A From the *Centre d'Imagerie Fonctionnelle, Bordeaux; and †CHU Pellegrin, Bordeaux, - - 2014
An 87-year-old woman with corticosteroid-resistant polymyalgia rheumatica underwent F-FDG PET/CT for suspected giant cell arteritis or neoplastic disease. FDG uptake in the immediate vicinity of the odontoid process, with a crownlike calcification, was identified on the CT scan on the posterior side of the dens, thus confirming the diagnosis of ...
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, ...
Aitken Andrew P AP King's College London, Division of Imaging Sciences, and Biomedical Engineering, St. Thomas' Hospital, London, - - 2014
To develop a flexible image navigator for 3D coronary MR angiography that allows respiratory motion of variable complexity to be compensated for on different temporal scales. A two-dimensional (2D) golden radial image navigator is proposed; translational motion is compensated for on a beat-to-beat basis, and residual affine motion is compensated ...
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 ...
Zemmoura Ilyess I INSERM U930 Imagerie et Cerveau, Université François-Rabelais de Tours, Tours, France; Université François-Rabelais de Tours, Laboratoire d'Anatomie, Tours, France; CHRU de Tours, Service de Neurochirurgie, Tours, France. Electronic address: - - 2014
Diffusion tractography relies on complex mathematical models that provide anatomical information indirectly, and it needs to be validated. In humans, up to now, tractography has mainly been validated by qualitative comparison with data obtained from dissection. No quantitative comparison was possible because Magnetic Resonance Imaging (MRI) and dissection data are ...
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 ...
Wang Haotian H Department of Pharmaceutical Sciences, Northeastern University, Boston, MA 02115; Nanomedicine Science and Technology Center, Northeastern University, Boston, MA - - 2014
Iron-oxide nanoparticles can act as contrast agents in magnetic resonance imaging (MRI), while radiolabeling the same platform with nuclear medicine isotopes allows imaging with positron emission tomography (PET) or single-photon emission computed tomography (SPECT), modalities that offer better quantification. For successful translation of these multifunctional imaging platforms to clinical use, ...
Cao Ruge R Division of Bioresources and Biosciences, Faculty of Agriculture, Graduate School of Kyushu University, 6-10-1 Hakozaki, Fukuoka 812-8581, - - 2015
This work focuses on a quantitative analysis of sucrose using diffusion ordered-quantitative (1)H-nuclear magnetic resonance spectroscopy (DOSY-qNMR), where an analyte can be isolated from interference based on its characteristic diffusion coefficient (D) in gradient magnetic fields. The D value of sucrose in deuterium oxide at 30°C was 4.9×10(-10)m(2)/s at field ...
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 ...
Mao Teresa T Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha University, Chennai, - - 2014
Recent research in endodontics has highlighted the need for three-dimensional imaging in the clinical arena as well as in research. Three-dimensional imaging using computed tomography (CT) has been used in endodontics over the past decade. Three types of CT scans have been studied in endodontics, namely cone-beam CT, spiral CT, ...
Rajasekharan S S Department of Paediatric Dentistry and Special Care, PaeCaMeD research, Ghent - - 2014
Dens Invaginatus (DI) is a rare malformation of the teeth, showing a broad spectrum of morphologic variations. The aim of this study was to perform in vitro radiographic analyses of three extracted dens invaginatus (DI) teeth with complex root anatomy using plain radiographs, CBCT, MRI and micro CT techniques. Three ...
Wakeman Kyle A - - 2014
A 22-yr-old bull giraffe (Giraffa camelopardalis reticulata) with severely altered hoof conformation in both forelimbs was presented for necropsy following acute mortality. Due to multiple challenges that prevented safe immobilization, corrective hoof trimming procedures were never performed on this animal. To better define the extent of the damage of the ...
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 ...
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