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Shcherbakov Maxim - - 2014
We observe enhanced third-harmonic generation from silicon nanodisks exhibiting both electric and magnetic dipolar resonances. Experimental characterization of the nonlinear optical response through third-harmonic microscopy and spectroscopy reveals that the third-harmonic generation is significantly enhanced in the vicinity of the magnetic dipole resonances. The field localization at the magnetic resonance ...
Tsutsumi Satoshi S Department of Neurological Surgery, Juntendo University Urayasu Hospital, 2-1-1 Tomioka, Urayasu, Chiba, 279-0021, Japan, - - 2014
To delineate the superior ophthalmic vein (SOV) with high-resolution magnetic resonance (MR) imaging. This retrospective study enrolled 302 consecutive outpatients, 101 patients, 51 males and 50 females, who underwent coronal T2-weighted imaging and 201 patients, 99 males and 102 females, who underwent three-dimensional (3D) phase-contrast (PC) MR angiography. Coronal T2-weighted ...
Demer Joseph L JL UCLA - - 2014
Activity in horizontal rectus extraocular muscles (EOMs) was investigated by magnetic resonance imaging (MRI) of humans during asymmetrical convergence to a monocularly aligned target at 15 cm distance, or monocular fixation of afocal targets placed over a wide range of conjugate abduction through adduction. Cross sections and posterior partial volumes ...
Choi Jaehuk J 1Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, South - - 2014
-The aim of this study is to explore the differential impact of three-dimensional color Doppler echocardiography (3D-CDE) for the quantification of mitral regurgitation (MR). Two-dimensional color Doppler echocardiography (2D-CDE) based MR quantification has well-documented limitations. -We consecutively enrolled 221 patients with MR. Adequate image quality was obtained by 2D- and ...
Nickel Miriam M Department of Pediatrics, Clinic for Degenerative Brain Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, - - 2014
A 4-year-old girl gradually lost her vision to become practically blind at the age of 10 years. Examinations at several medical centers had been unable to establish an etiology. Traditional investigation using cerebral magnetic resonance imaging (MRI) initially showed normal results; however, later on it showed progressive atrophy of both ...
Buckingham A David AD Department of Chemistry, Cambridge University, Cambridge CB2 1EW, United - - 2014
Nuclear magnetic resonance spectroscopy is blind to chirality because the spectra of a molecule and its mirror image are identical unless the environment is chiral. However, precessing nuclear magnetic moments in chiral molecules in a strong magnetic field induce an electric polarization through the nuclear magnetic shielding polarizability. This effect ...
Shirai Kiyonori K Department of Radiation Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, - - 2014
To determine whether maximum or average intensity projection (MIP or AIP, respectively) reconstructed from 4-dimensional computed tomography (4DCT) is preferred for alignment to cone beam CT (CBCT) images in lung stereotactic body radiation therapy. Stationary CT and 4DCT images were acquired with a target phantom at the center of motion ...
Dhull Varun Singh VS Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, - - 2014
Follow-up bone scintigraphy (BS) in a patient of carcinoma left breast, who was treated with surgery followed by radiotherapy 12 years back, revealed asymmetrically increased radiotracer uptake in left-sided ribs. Since, this pattern was atypical for metastatic rib involvement, single photon emission computed tomography/computed tomography (SPECT/CT) of thorax was done ...
Ryu Kwang-Su KS IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, - - 2014
Domain walls can be driven by current at very high speeds in nanowires formed from ultra-thin, perpendicularly magnetized cobalt layers and cobalt/nickel multilayers deposited on platinum underlayers due to a chiral spin torque. An important feature of this torque is a magnetic chiral exchange field that each domain wall senses ...
Menon K Venugopal - - 2013
Retrospective cohort study. To identify morphological features on Magnetic Resonance Imaging (MRI) that might correlate with lumbar canal stenosis severe enough to warrant surgery. None of the quantitative parameters measured on X rays, CT Scans or MRI correlates well with severity of clinical symptoms in Lumbar Canal Stenosis (LCS). In ...
Togawa Y - - 2013
We investigate the interlayer magnetoresistance (MR) along the chiral crystallographic axis in the hexagonal chiral magnet CrNb_{3}S_{6}. In a region below the incommensurate-commensurate phase transition between the chiral soliton lattice and the forced ferromagnetic state, a negative MR is obtained in a wide range of temperature, while a small positive ...
Friling Lisa - - 2013
The nasal cycle is a physiological phenomenon that causes regular cyclical congestion and decongestion of the venous sinusoids lining the nasal mucosa. The purpose of this prospective study was to describe magnetic resonance imaging (MRI) and computed tomographic (CT) features of the normal nasal cycle in a group of dogs. ...
Miyabe-Nishiwaki Takako - - 2013
An intracranial arachnoid cyst was detected in a 32-year-old, 44.6-kg, female chimpanzee at the Primate Research Institute, Kyoto University. Magnetic resonance imaging (MRI) and computed tomography (CT) were performed and the cognitive studies in which she participated were reviewed. MRI revealed that the cyst was present in the chimpanzee's right ...
Menjot de Champfleur N - - 2013
The exploration of the chiasmal and retrochiasmal visual pathways is based on magnetic resonance imaging. A bitemporal hemianopsis suggests a lesion of the optic chiasm while homonymous lateral hemianopsis should lead to a search for a lesion of the retrochiasmal visual pathways. The causes of chiasmal impairment are mainly tumoral. ...
Park Chul Hwan CH Department of Radiology, Research Institute of Radiological Science, Yonsei University Health System, Seoul, Republic of - - 2013
To evaluate whether the overgrowth of costal cartilage may cause pectus carinatum using three-dimensional (3D) computed tomography (CT). Twenty-two patients with asymmetric pectus carinatum were included. The fourth, fifth and sixth ribs and costal cartilages were semi-automatically traced, and their full lengths were measured on three-dimensional CT images using curved ...
Tian Ailin A State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Chaoyang District, Beijing 100029, PR - - 2013
Separation of enantiomers still remains a challenge due to their identical physical and chemical properties in a chiral environment, and the research on specific chiral selector along with separation techniques continues to be conducted to resolve individual enantiomers. In our laboratory the promising magnetic chiral microspheres Fe3O4@SiO2@cellulose-2, 3-bis (3,5-dimethylphenylcarbamate) have ...
Girguis-Bucher A - - 2013
Objective: We report a unique case of anatomical variation of the extracranial course of the optic nerve running in the floor of the sphenoid sinus. Method: Clinical and radiological findings are presented. Results: A 39-year-old woman with Turner syndrome presented with severe headache associated with visual disturbances. Magnetic resonance imaging ...
Togawa Yoshihiko - - 2013
Magnetic structures in magnetic artificial lattices and chiral magnetic orders in chiral magnets have been quantitatively analyzed in the reciprocal space by means of small-angle electron scattering (SAES) method. Lorentz deflection due to magnetic moments and Bragg diffraction due to periodicity are simultaneously recorded at an angle of the order ...
Nagao Masahiro - - 2013
The structure and dynamics of submicrometre magnetic domains are the main factors determining the physical properties of magnetic materials. Here, we report the first observation of skyrmion-like magnetic nanodomains in a ferromagnetic manganite, La0.5Ba0.5MnO3, using Lorentz transmission electron microscopy (LTEM). The skyrmion-like magnetic domains appear as clusters above the Curie ...
Sanchis-Moysi Joaquin - - 2013
The aim was to determine the volume and degree of asymmetry of quadratus lumborum (QL), obliques, and transversus abdominis; the last two considered conjointly (OT), in tennis and soccer players. The volume of QL and OT was determined using magnetic resonance imaging in professional tennis and soccer players, and in ...
Wang Yingbing - - 2013
ABSTRACT: A 59-year-old man with diffuse large B-cell lymphoma presenting as an anterior mediastinal mass underwent PET/CT after 2 cycles of chemotherapy. PET/CT shows moderately increased FDG uptake in a predominantly left prevascular mass, consistent with partially treated lymphoma. The left hemidiaphragm is elevated. PET shows asymmetric uptake along the ...
Zeissler K - - 2013
The flow of magnetic charge carriers (dubbed magnetic monopoles) through frustrated spin ice lattices, governed simply by Coulombic forces, represents a new direction in electromagnetism. Artificial spin ice nanoarrays realise this effect at room temperature, where the magnetic charge is carried by domain walls. Control of domain wall path is ...
Hansford Barry G BG Department of Radiology, University of Chicago Medicine, Chicago, - - 2013
While there are broad differential diagnoses for either the clinical finding of hemichorea-hemiballism or the imaging finding of lateralizing/asymmetric basal ganglia lesions (hyperdense on computed tomography, hyperintense on T1 magnetic resonance imaging), the presence of both findings is highly suggestive of nonketotic hyperglycemia. We present an unusual case of a ...
Lee Jae-Seung JS Quantitative Multinuclear Musculoskeletal Imaging Group, Center for Biomedical Imaging, Department of Radiology, New York University Langone Medical Center, New York, NY 10016, - - 2013
The development of chemical exchange saturation transfer (CEST) has led to the establishment of new contrast mechanisms in magnetic resonance imaging, which serve as enablers for advanced molecular imaging strategies. Macromolecules in tissues and organs often give rise to broad and asymmetric exchange effects, called magnetization transfer (MT) effects, which ...
Bahk Young-Mi - - 2012
We studied the electromagnetic interaction between two asymmetric terahertz nano resonators, rectangular holes which have a few hundred micron lengths but nanoscale widths. We report that the dominant resonant transmission of the structures can be modulated by the horizontal distance between two rectangles due to the different oscillation strength of ...
Oh Karen Y - - 2012
A series of 20 cases from 2 academic institutions is presented with a characteristic imaging triad of asymmetric ventriculomegaly, a large interhemispheric cyst, and partial or complete agenesis of the corpus callosum. Most cases were initially referred as aqueduct stenosis and hydrocephalus or focal porencephaly. We describe the imaging findings ...
Vijay Kumar K V - - 2012
Magnetic resonance imaging overcomes the limitations of videofluoroscopy in assessing without radiation exposure. The clinical utility of dynamic MRI for swallowing disorders is not well documented. This study demonstrates the feasibility of using dynamic MRI in assessment of swallowing disorders. Ten normal and three brainstem lesion patients participated in this ...
Song Kyoung Doo - - 2012
PURPOSE: To evaluate the accuracy of pre-operative MRI for the detection of optic nerve invasion in retinoblastoma. MATERIALS AND METHODS: Institutional review board approval and informed consent were waived for this retrospective study. A total of 41 patients were included. Inclusion criteria were histologically proven retinoblastoma, availability of diagnostic-quality preoperative ...
Gulses Aydin - - 2012
The course of the second part of the maxillary can vary among different races. The aim of this study was to evaluate the relation between the maxillary artery and the lateral pterygoid muscle in a white population sample on computed tomographic (CT) angiograms. We retrospectively reviewed multidetector CT angiograms of ...
Jang Han Jin - - 2012
Metronidazole-induced encephalopathy is a very rare complication of the long standing use of metronidazole. The encephalopathy is bilateral and symmetric in nature. We report on the magnetic resonance imaging (MRI) and clinical course of metronidazole-induced encephalopathy in a 60-year-old female with a persistent anaerobic brain abscess after draining of the ...
Schmit Virginia Lyn - - 2012
We describe a novel sandwich assay based on Surface Enhanced Raman Scattering (SERS) comprised of buoyant silica microspheres coated with antibodies against the beta subunit of the cholera toxin (CT), and gold nanoparticles tagged with a Raman reporter, shelled with silica and coated with antibodies against the beta subunit of ...
Srinivasan Sivasubramanian - - 2012
Blindness following surgery, especially cardiac surgery, has been reported sporadically, the most common cause being ischemic optic neuropathy. The role of MRI in the diagnosis of this condition is not well established. We present a case of postoperative posterior ischemic optic neuropathy that was diagnosed on diffusion-weighted MRI.
Kasyap A J - - 2012
Atlantoaxial fixation is a relatively rare cause of torticollis which may be easily missed in practice. Early diagnosis is important as this indicates a compromised atlantoaxial complex with the potential to cause neural damage or even death. Here, we report a case of atlantoaxial rotatory fixation in a 13 yr ...
Malhotra Rajesh - - 2012
Femoroacetabular impingement has been postulated as the important cause of primary osteoarthritis in non dysplastic hips. We postulated that the rarity of primary osteoarthritis of hip in Indian population could be attributable to morphological differences, specifically to a lower prevalence of abnormal head-neck morphology. We conducted an anthropometric study to ...
Karki Bivek - - 2012
Extramedullary hematopoiesis (EMH) represents tumor-like proliferation of hemopoietic tissue which complicates chronic hemoglobinopathy. Intracranial EMH is an extremely rare occurrence. Magnetic resonance imaging (MRI) offers a precise diagnosis. It is essential to distinguish EMH from other extradural central nervous system tumors, because treatment and prognosis are totally different. Herein, we ...
Srinivasan K - - 2012
OBJECTIVE: To evaluate the mandibular canal using volume interpolated breath-hold examination (VIBE) sequencing in patients with cysts and tumors of the mandible. MATERIALS AND METHODS: Twenty-five patients with mandibular cysts and tumors were recruited for a study in the authors' institution to compare the role of multidetector row computed tomography ...
Niwa Tetsu - - 2012
We present a case of scurvy in a 6-year-old boy with autism and an unbalanced diet. The patient was admitted with difficulties in walking. Magnetic resonance imaging findings of the thigh showed diffuse signal abnormality in the bone marrow, periosteum, and the femoral muscle. A biopsy specimen of the femur ...
Krasny Andrej - - 2012
Anatomical variations of the dental canal structures are present in a small proportion of the population and often go undiagnosed. In such cases, there could be an increased risk of complications during surgery and failure of anesthesia. The aim of this study was to search for anatomical anomalies in a ...
Ulualp Seckin O - - 2012
Objectives. Asymmetric facial appearance may originate from abnormalities of facial musculature or facial innervation. We describe clinical features of congenital hypoplasia of depressor anguli oris muscle in a child. Material and Methods. Chart of a 10-month-old female referred to a tertiary care pediatric hospital for assessment of facial paralysis was ...
Pakter Grant Jason - - 2012
The case of a 59-year-old Caucasian man who presented with a 6-week history of intermittent blurring of vision and diplopia is reported. Fundoscopy revealed asymmetrical, bilateral optic disc swelling with peripapillary haemorrhages. An initial CT scan and D-dimer level were reported as normal. A subsequent MRI revealed a recanalising superior ...
Akar Serpil - - 2012
A female child with morning glory disc anomaly (MGDA) in two eyes is described in this report. The patient had no systemic abnormalities. Magnetic resonance imaging of the cranium, sella and orbits revealed an asymmetry of the right and left optic nerve sheath complexes. The presence of asymmetric optic nerve ...
Takahashi Naoto - - 2011
Abstract Conclusion: Different from adults, the superior semicircular canal (SSC) protrudes into the cranium during the fetal period. This might cause adhesion of the membranous labyrinth to dura as the bony labyrinth develops much later than the membranous labyrinth. This adhesion interferes with ossification and leads to a bony defect ...
Takahata Akiko - - 2011
The plicae palmatae are normal endocervical folds on the anterior and posterior walls. The median longitudinal ridges of the plicae palmatae have been considered to represent a remnant of fused Müllerian ducts. We present a case of uterus didelphys in which the longitudinal ridge of the plicae palmatae were obviously ...
Krasny Andrej - - 2011
The aim of this study was to evaluate the visualizability, topography, and course of the mandibular canal with particular attention to the incisive canal on 3-T MRI. Particular attention was paid to the incisive canal anastomosis at the symphysis. A total of 64 dentate patients were examined using a modified ...
Lee S-M - - 2012
This study aimed to show that the horizontal relationship between the mandibular canal and the alveolar crest can influence the available bone height (ABH) measurement on panoramic radiographs. 92 mandibular edentulous sites of panoramic computed radiographs and reformatted CT images of 77 patients were used. Selected CT images were categorized ...
Fukami K - - 2012
The aims of this study were (1) to assess the validity of limited cone beam CT (CBCT) in detecting the distribution of bifid mandibular canals in the retromolar region by comparing its findings with those of panoramic radiography and spiral CT imaging, and (2) to confirm the contents of such ...
Bamba Yoshiko - - 2011
PURPOSE: The present study was performed to evaluate the depth of anal canal invasion (DACI), and determine whether magnetic resonance imaging (MRI) assessment of the conjoined longitudinal muscle (CLM) can be used to identify the surgical indication for intersphincteric resection. METHODS: Sixty-six patients with T1 (n = 2), T2 (n = 20), T3 (n = 39), ...
Sequeira Sunitha M - - 2011
HYPOTHESIS:: High-resolution temporal bone computed tomography (CT) may erroneously demonstrate a superior semicircular canal dehiscence (SSCD) where none exists and inaccurately display the size of a dehiscence. BACKGROUND:: CT is an integral component of the diagnosis of SSCD. The prevalence of dehiscence as measured on computed tomographic scan is approximately ...
Nomura Yasuya - - 2011
Abstract The aim of this study was to evaluate the effects of argon laser irradiation of the semicircular canals using computed tomography (CT) images and to examine the basis for laser treatment for benign paroxysmal positional vertigo (BPPV). CT images of the posterior canal were evaluated postoperatively in a patient ...
De Decker Steven - - 2011
Objective-To determine magnetic resonance imaging (MRI) vertebral ratio values representing vertebral canal height, vertebral canal shape, and vertebral body shape in Doberman Pinschers with and without disk-associated cervical spondylomyelopathy (DACSM) and clinically normal English Foxhounds. Animals-Doberman Pinschers with (n = 18) and without (20) DACSM and clinically normal English Foxhounds ...
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