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Nakahara Takehiro T Department of Medicine and Biological Science, Gunma University Graduate School of Medicine, 3-39-22 Showa, Maebashi, Gunma 371-8511, Japan. Electronic address: - - 2014
A 71-year-old man, a heavy smoker, was admitted for evaluation of "chest oppression" after every dinner. Cardiac CT with a beta-blocker showed coronary stenosis in the left circumflex. Although adenosine triphosphate-stress perfusion single-photon emission CT revealed no ischemia, Holter electrocardiography belatedly indicated an ST elevation associated with his symptoms while ...
Suthar Renu - - 2012
GM1gangliosidosis is a rare autosomal recessive lysosomal storage disorder caused by deficiency of enzyme β-galactosidase, resulting in progressive neural and visceral accumulation of GM1gangliosides. Coarse facial features, bilateral cherry red spots, and dysostosis multiplex are important clue to diagnose this condition. We describe a case of GM1gangliosidosis with dysostosis multiplex ...
Vela Sergi - - 2012
A complete computational study of the magnetic properties of the two known phases of the bistable (BDTA)(2)[Co(mnt)(2)] compound is presented. The origin of their different magnetic properties can be traced to a variation in the values of the g tensor, together with a hitherto unknown change in the J(AB) values ...
Doot Robert K - - 2012
The Seattle Cancer Care Alliance (SCCA) is a Pacific Northwest regional network that enables patients from community cancer centers to participate in multicenter oncology clinical trials where patients can receive some trial-related procedures at their local center. Results of positron emission tomography (PET) scans performed at community cancer centers are ...
Väänänen Sami P - - 2012
Femoral radiographs are affected by the degree of rotation of the femur with respect to the plane of projection. We aimed to determine the 3D rotation of the proximal femur in 2D radiographs. A 3D Statistical Appearance Model (SAM), which was built from CT images of cadaver proximal femurs (n=33) ...
Sexton Claire E CE University Department of Psychiatry, University of Oxford, - - 2012
Disruption of frontal-subcortical and limbic networks is hypothesized to have a key role in late-life depression (LLD) and can be examined using magnetic resonance imaging (MRI) techniques. Gray matter can be examined using T1-weighted MRI, white matter using T2-weighted MRI and diffusion tensor imaging, and functional connectivity in resting-state networks ...
Voets Natalie L NL Neuroimaging of Epilepsy Laboratory, Department of Neurology and McConnell Brain Imaging Centre, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec H3A 2B4 - - 2012
Magnetic resonance imaging methods that measure interregional brain signalling at rest have been advanced as powerful tools to probe organizational properties of functional networks. In drug-resistant temporal lobe epilepsy, resting functional magnetic resonance imaging studies have primarily employed region of interest approaches that preclude a comprehensive evaluation of large-scale functional ...
Schulte Tilman T Neuroscience Program, Center of Health Sciences, SRI International, Menlo Park, CA 94025, USA. - - 2012
Multimodal imaging combining 2 or more techniques is becoming increasingly important because no single imaging approach has the capacity to elucidate all clinically relevant characteristics of a network. This review highlights recent advances in multimodal neuroimaging (i.e., combined use and interpretation of data collected through magnetic resonance imaging [MRI], functional ...
Taieb Guillaume - - 2012
A 69-year-old right-handed woman experienced, several times a day, a stereotyped feeling of warmth, rapidly followed by an urge to defecate. Magnetic resonance imaging revealed a right-sided mesial temporal cavernoma, and interictal electroencephalogram showed ipsilateral temporofrontal sharp waves. A brain lesion was absent in the only two earlier reported cases ...
Miyazaki Nobuhiro - - 2012
We propose an active noise control (ANC) system for reducing periodic noise generated in a high magnetic field such as noise generated from magnetic resonance imaging (MRI) devices (MRI noise). The proposed ANC system utilizes optical microphones and piezoelectric loudspeakers and consists of a head-mounted structure to control noise near ...
Golay Xavier X UCL Institute of Neurology, UCL, London, UK. - - 2012
Since its inception in the early 1990s, arterial spin labelling (ASL) has been developed in numerous variants. Tremendous improvements in both pulse sequences and hardware have allowed improved image quality and reduced scan time, to the point where the technique might be ready for clinical application. However, although now routinely ...
An Haining - - 2012
Swollen physical magnetorheological (MR) gels were obtained by self-assembling of triblock copolymers containing dispersed soft magnetic particles. The transient rheological responses of these systems were investigated experimentally. Upon sudden application of a homogeneous magnetic field step change, the storage modulus of MR gels continued to increase with time. Such increase ...
Mitaki Shingo - - 2012
Increasing attention has been paid recently to the study of spontaneous brain activity; moreover, particular attention has been paid to the concept of a default-mode network of brain function. Although the functional significance of the default-mode network remains a matter of debate, it has been suggested to be a candidate ...
Garlatti E - - 2012
The Ni(7) nanomagnet represents an ideal model system for investigating the effects of geometrical frustration in magnetic interactions. The Ni ions in the magnetic core are arranged on two corner-sharing tetrahedra and interact through antiferromagnetic exchange couplings. We show that the high degree of frustration leads to a magnetic energy ...
Mahanand B S - - 2012
In this paper, we present a novel approach for the identification of brain regions responsible for Alzheimer's disease using the Magnetic Resonance (MR) images. The approach incorporates the recently developed Self-adaptive Resource Allocation Network (SRAN) for Alzheimer's disease classification using voxel-based morphometric features of MR images. SRAN classifier uses a ...
Lin Wei-Che - - 2012
Cerebral edema, a well-known feature of acute liver disease, can occur in cirrhotic patients regardless of hepatic encephalopathy (HE) and adversely affect prognosis. This study characterized and correlated functional HE abnormalities in the brain to cerebral edema using resting-state functional magnetic resonance imaging (rs-fMRI) and diffusion tensor imaging (DTI). Forty-one ...
Gaudino Chiara - - 2011
OBJECTIVES: The aim of this study was (1) to assess the ability of magnetic resonance imaging (MRI) to visualize dental and periodontal structures and (2) to compare findings with multidetector computed tomography (MDCT) and cone beam CT (CBCT). MATERIALS AND METHODS: Four porcine mandibles were examined with (1) 3T-MRI, (2) ...
Williams Patrick D - - 2011
Xanthan-curdlan hydrogel complex (XCHC) has been shown capable of retaining moisture up to 5 freeze-thaw cycles (FTCs); however, moisture distribution in the complex in relation to the hydrogel composition and structure remains uncharacterized. In the present study, magnetic resonance imaging (MRI), nuclear magnetic resonance (NMR) relaxometry, rheology, and scanning electron ...
Castledine George - - 2011
Mrs Abbott was suffering from a fibroid tumour she further consulted a specialist, Mr. Ryall, who informed her that an operation was necessary, which he performed on November 5th. There were present at the operation, which was an extremely complicated one, two doctors and two nurses in addition to the ...
Kiriyama Takao - - 2011
Features of tumefactive demyelinating lesion (TDL) on magnetic resonance imaging (MRI) can facilitate the differential diagnosis of TDL and neoplastic lesions, but vary considerably among patients. The larger TDL grows, the more difficult it becomes to differentiate TDL from neoplastic lesions. The purpose of this study was to elucidate typical ...
Bomboi Giuseppe - - 2011
Using high-field magnetic resonance imaging (MRI), we investigated the relationships between white matter (WM) lesion volume (LV), normal-appearing WM (NAWM) normalized volume, WM-lesion and NAWM magnetization transfer ratios (MTRs), brain parenchyma fraction (BPF), and cognitive impairment (CI) in multiple sclerosis (MS). Twenty-four patients and 24 healthy volunteers (age, sex, and ...
Koda Masahiko - - 2012
Our aim was to investigate whether magnetic resonance imaging (MRI) with ferucarbotran administered prior to radiofrequency ablation could accurately assess ablative margin when compared with enhanced computed tomography (CT) with iodized oil marking. We enrolled 27 patients with 32 hepatocellular carcinomas in which iodized oil deposits were visible throughout the ...
Jabbour Pascal - - 2011
Silicone oil is commonly used to tamponade the retina in the case of retinal detachment. We present a case in which silicone oils had migrated to the ventricles and the head computed tomographic (CT) scan was misread as intraventricular hemorrhage. We report a 72-year-old patient who was referred to us ...
Adriaensen Miraude E A P M - - 2011
With this collection of computed tomography and magnetic resonance images, we illustrate a recently described novel finding in the myocardium of patients with tuberous sclerosis complex.
Peltier Scott J - - 2011
Abstract Resting-state low frequency oscillations have been detected in many functional magnetic resonance imaging (MRI) studies and appear to be synchronized between functionally related areas. Converging evidence from MRI and other imaging modalities suggest that this activity has an intrinsic neuronal origin. Multiple consistent networks have been found in large ...
Tatewaki Yasuko - - 2011
Silicone oil is an important adjunct for intraocular tamponade in treating retinal detachment. We report a case in which image findings suggested migration and intracranial accumulation of intraocular silicone. We detected silicone oil in the lateral ventricle that showed hyperdensity on computed tomography, slight hyperintensity on T1-weighted magnetic resonance images, ...
Prosperini L - - 2011
We reported a post-marketing experience of 190 patients affected by relapsing multiple sclerosis on treatment with natalizumab. Clinical findings during pre-treatment period and throughout the study were documented. Magnetic resonance imaging (MRI) scans were performed at baseline and at 6, 12, and 24 months of therapy. Cumulative proportions of patients disease ...
Dennis Emily L - - 2011
Research on resting-state functional connectivity reveals intrinsically connected networks in the brain that are largely consistent across the general population. However, there are individual differences in these networks that have not been elucidated. Here, we measured the influence of naturally occurring mood on functional connectivity. In particular, we examined the ...
Loizou C P - - 2011
This study introduces the use of multiscale amplitude modulation-frequency modulation (AM-FM) texture analysis of multiple sclerosis (MS) using magnetic resonance (MR) images from brain. Clinically, there is interest in identifying potential associations between lesion texture and disease progression, and in relating texture features with relevant clinical indexes, such as the ...
Zhang Y - - 2011
SUMMARY: This study describes a case of a patient with OSMS who presented with somnolence, periodic fever, memory impairment, and amenorrhea. Serum prolactin levels were found to be higher than normal. MR imaging showed a bilateral involvement of the hypothalamus. The clinical presentation, laboratory examination, and MR imaging findings suggested ...
Rinaldi F - - 2010
Multiple sclerosis (MS) is a chronic inflammatory and degenerative disease of the central nervous system. In the last decade, pathological and magnetic resonance imaging (MRI) studies have shown that a significant portion of inflammatory lesions are located in the grey matter, especially in the cerebral cortex, of MS patients. Cortical ...
Maguire M - - 2010
Introduction Respiratory failure is an uncommon association with multiple sclerosis. We report on a patient with multiple sclerosis who developed bilateral diaphragmatic weakness and type II respiratory failure requiring mechanical ventilation, who was successfully treated with plasma exchange. Case Report A 38-year-old woman with multiple sclerosis presented in May 2009 ...
Giorgio Antonio - - 2010
The overall burden of brain MRI-visible lesions does not fully account for cognitive impairment in multiple sclerosis (MS). Several MRI studies have highlighted the importance of brain damage in the normal-appearing brain tissue. Brain atrophy (global, cortical, white and deep grey matter) is related to cognitive deficits in MS patients ...
Filippi M - - 2010
Magnetic resonance imaging (MRI) techniques have contributed to ameliorate the understanding of the mechanisms responsible for the accumulation of cognitive impairment in patients with multiple sclerosis. Earlier studies demonstrated a relationship of the location of T2-visible lesions in critical brain regions and atrophy of several brain compartments with the severity ...
Schmierer Klaus K UCL Institute of Neurology, Department of Neuroinflammation, NMR Research Unit, London, United Kingdom. - - 2010
To investigate changes in magnetic resonance imaging (MRI) indices following formalin fixation of postmortem multiple sclerosis (MS) cortical gray matter (CGM). Postmortem MS brain is being used to establish pathological correlates of changes detected using MRI, with recent emphasis on CGM. Fixation induces tissue alterations that may confound inference of ...
Hui Jiao-Jie - - 2011
Exposure to early life stress results in behavioural changes, and these dysfunctions may persist throughout adulthood. In this study, we investigated whether hippocampus volume and neurochemical changes were involved in the appearance of these effects in the maternal separation (MS) animal model using the noninvasive techniques of structural magnetic resonance ...
Wasay M - - 2011
The objective of this study was to identify asymptomatic patients with brain MRI lesions suggestive of multiple sclerosis (MS) in a low-prevalence area of Pakistan. Brain MRIs for 864 patients were reviewed at the Aga Khan University (Karachi, Pakistan) during an 8-month period of 2006 and 2007 to identify patients ...
Khalil M - - 2011
Background: Cognitive deficits are frequent in multiple sclerosis (MS) and have been associated with morphologic brain changes. Less information exists on their extent and relation to MRI findings in clinically isolated syndrome (CIS). It is also unclear if structural changes as detected by magnetization transfer (MT) imaging may provide an ...
Miravalle Augusto - - 2011
To assess clinical consequences of temporary natalizumab dosage suspension. Prospective cohort study. Multiple sclerosis (MS) center at an academic medical center in the United States. Patients  Thirty-two patients with MS who had received at least 12 consecutive natalizumab infusions. Main Outcomes Measures  Recurrent MS disease activity, defined as a clinically ...
Jones David T - - 2011
To describe the neuroanatomical correlations of an isolated lesion in the anterior thalamus using functional imaging in a 40-year-old man with multiple sclerosis. Case report with 10 cognitively normal controls. Mayo Clinic, Rochester, Minnesota. Patient  A 40-year-old man with a 2-week course of acute-onset amnesia, abulia, poor concentration, hypersomnolence, and ...
Choi I-Y - - 2011
Disability levels for patients with secondary progressive multiple sclerosis (SPMS) often worsen despite a stable MRI T(2) lesion burden. The presence of oxidative stress in the absence of measurable inflammation could help explain this phenomenon. In this study, the assessment of an in vivo marker of oxidative stress, cerebral glutathione ...
Tallantyre Emma C - - 2010
Cortical lesions are prevalent in multiple sclerosis but are poorly detected using MRI. The double inversion recovery (DIR) sequence is increasingly used to explore the clinical relevance of cortical demyelination. Here we evaluate the agreement between imaging sequences at 3 Tesla (T) and 7T for the presence and appearance of ...
Magome Taiki - - 2011
Our purpose in this study was to develop an automated method for segmentation of white matter (WM) and gray matter (GM) regions with multiple sclerosis (MS) lesions in magnetic resonance (MR) images. The brain parenchymal (BP) region was derived from a histogram analysis for a T1-weighted image. The WM regions ...
Oh Unsong - - 2011
Glial activation in the setting of central nervous system inflammation is a key feature of the multiple sclerosis (MS) pathology. Monitoring glial activation in subjects with MS, therefore, has the potential to be informative with respect to disease activity. The translocator protein 18 kDa (TSPO) is a promising biomarker of ...
Li Yongmei - - 2011
Paroxysmal dysarthria (PD) and paroxysmal dysarthria-ataxia (PDA) syndromes are uncommon symptoms of the neurological dysfunction in multiple sclerosis (MS). We describe two patients who had clinically definite MS presented with symptomatic PD and PDA syndromes, respectively, related to demyelinating lesions. In one patient, the PD symptom was the initial manifestation ...
Coebergh Jaf - - 2010
We present the case of a 21-year-old woman with acute memory impairment. It was initially not recognized as organic in nature. Repeated neuropsychological testing confirmed severely disturbed encoding and recall. Three-dimensional double inversion recovery (3D-DIR) MRI confirmed hippocampal and cortical lesions. Further clinical symptoms, visual evoked potential and MRI suggested ...
Ko K F - - 2010
The role of evoked potential (EP) in evaluating multiple sclerosis (MS) has changed with the advent of magnetic resonance (MR) imaging. Given the possibly varied nature and distribution of pathologic lesions in Asian MS, this study compared the diagnostic usefulness of EPs to that of MR imaging among Chinese subjects. ...
Brown L N - - 2010
The corpus callosum (CC) is frequently compromised in patients with multiple sclerosis (MS). Structural and functional measurements of the CC may be useful to monitor the progression of the disease. The aim of this pilot study was to determine if bimanual tactile temporal thresholds correlates with CC volume. A tactile ...
Akbar Nadine - - 2010
Cognitive impairment can add to the burden of disease in patients with multiple sclerosis (MS). The aim of this study was to assess the relative importance of diffusion tensor imaging (DTI) indices derived from normal appearing white matter (NAWM) and grey matter (NAGM) in determining cognitive dysfunction in MS patients. ...
Poonawalla A H AH Department of Diagnostic and Interventional Imaging, University of Texas Medical School at Houston, Houston TX, - - 2010
Quantitative measures derived from magnetic resonance imaging (MRI) have been widely investigated as non-invasive biomarkers in multiple sclerosis (MS). However, the correlation of single measures with Expanded Disability Status Scale (EDSS) is poor, especially for studies with large population samples. To explore the correlation of MRI-derived measures with EDSS through ...
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