high field MRI
High Field MRI Contribution in Tolosa Hunt Syndrome (THS) Report of Two Cases and Review of Literature
... a high field MRI (Siemens ...patient, MRI examina- tions showed a non tumoral thickening of the right cavernous sinus, suggest- ing a granulomatous ...
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Monitoring the Growth of an Orthotopic Tumour Xenograft Model: Multi-Modal Imaging Assessment with Benchtop MRI (1T), High-Field MRI (9.4T), Ultrasound and Bioluminescence
... magnetic field, which is reflected in the reduced experimental time and greater CNR measured in this study with high-field MRI compared with low-field ...and high-field ...
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The value of the simplified RAMRIS 5 in early RA patients under methotrexate therapy using high field MRI
... streamlined MRI score, RAMRIS-5, focusing on only five joints of the hand and wrist, has been evaluated and proven to have a strong correlation in patients with established RA at low-field MRI ...at ...
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Mercury is one of the most toxic. High-Field MRI and Mercury Release from Dental Amalgam Fillings. Brief Report
... Mercury is among the most toxic nonradioactive elements which may cause toxicity even at low doses. Some studies showed release of mercury from dental amalgam fillings in individu- als who used mobile phone. This study ...
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High Field MRI: Technology, Applications, Safety, and Limitations. Brief overview of high-field MRI. The promise of high-field MRI
... 1.5T 1.5T 3.0T 3.0T 3T Profile 1.5T profile AAPM 2005 AAPM 2005 AAPM 2005 B1 inhomogeneity B1 inhomogeneity 3T 1.5T. Destructive interference in the pelvis can lead to persistent “black[r] ...
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High field MRI of hemorrhagic cortical infarction
... Subacute hemorrhagic cortical infarction shows cortical high intensity first on T1-weighted images and later on T2-weighted images; it is also associated with subco[r] ...
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Development and optimisation of high-field MRI techniques
... As the ratio between images acquired with and without saturation pulses is conven tionally used in magnetisation transfer assessment (see eq. 3.4), fig. 5.19 shows the ratios of corresponding slices for opposite ...
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Dielectric shimming : exploiting dielectric interactions in High Field MRI
... that high permittivity pads in combination with a body coil receive sen- sitivity filter enable homogeneous images to be acquired in the legs at ...The high permittivity pads enable localized correction of ...
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Design of Radio-Frequency Arrays for Ultra-High Field MRI
... Following from this new approach to RF array design, distributed element filters were synthesized for the first time to decouple RF array elements, as outlined in Chapters 3 and 4. The application of distributed element ...
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Quantitative Susceptibility Imaging of Tissue Microstructure Using Ultra-High Field MRI
... -weighted MRI scans has not offered significant predictive power toward understanding disease ...standard MRI contrasts only visualize a fraction of the disease burden (in both gray and white matter) which ...
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Hippocampal subfields at ultra high field MRI: An overview of segmentation and measurement methods
... of high-resolution ana- tomical atlases using ex vivo ...greater field strength, smaller field of view and longer acquisi- tion time, yielding high-contrast images with voxels about 100 times ...
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Ultra High Field MRI Visualization of Cortical Multiple Sclerosis Lesions with T2 and T2*: A Postmortem MRI and Histopathology Study
... provide high-resolution anatomic images of GM lesions, and it has even been suggested that this sequence be used as the new criterion standard for GM lesion ...
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Iterative multi-channel radio frequency pulse calibration with improving B1 field uniformity in high field MRI
... RF field homogeneity in the realistic situation if it improves the RF field homogeneity in this extreme ...composite field appears as shown in Figure ...composite field appears as shown in ...
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Investigation of the relationship between iron and high field MRI in healthy and Alzheimer's disease tissue
... I would also really like to thank all of the excellent scientists with whom I have worked during this project. In particular: Naomi Visaji and Lili-Naz Hazrati who provided the samples for this project, and gave ...
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Insights into reward-based decisions using computational models and ultra-high field MRI
... 4.2.7 fMRI data analysis We extracted the fMRI signal for each time point within the ROIs (i.e., left and right SN and VTA) for each subject and computed its average time course for each ROI separately. We then fitted a ...
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Comparison of T1wFLAIR and T1wTSE sequences in imaging the brain of small animals using high-field MRI
... To the author ’ s knowledge, T1wFLAIR has not been investigated in veterinary medicine. The aim of this prospective study was to determine quantitatively and qualitatively which sequence provides better overall better ...
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<p>NITINOL-based actuator for device control even in high-field MRI environment</p>
... of MRI-compatible actuator mechanisms available on the market, 9 but these still have problems with repeatability, reliability, size, generated image artifacts or ...new MRI-compatible actuator for a 3T ...
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Altered Brain Networks In Patients with Psychogenic Non-Epileptic Seizures (PNES) Using Ultra High Field MRI
... deoxyhemoglobin concentration in the brain to alter the MRI signal (Kim & Ogawa, 2012). As described in an article by Mathews and Jezzard (2004) the contrast in a magnetic resonance image which determines what we ...
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Beyond blood brain barrier breakdown – in vivodetection of occult neuroinflammatory foci by magnetic nanoparticles in high field MRI
... Axial and coronal T1-weighted (MSME; TE 10.5 ms, TR 322 ms, 0.5 mm slice thickness, matrix 256 × 256, field of view (FOV) 2.8 cm, eight averages, 40 coronal slices, scan time 22 minutes, and 20 axial slices, scan ...
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7.0 Tesla High-Field MRI for Quantitative Assessment of Posttraumatic Spinal Cord Injury Area Volume in Animal Models
... 0,15 0,15 0,10 0,20 0,20 0,25 Discussion Since experimental modelling for spinal cord injury treatment studies is unavailable for humans, proper implementation of animal modelling (in particular for small lab animals) is ...
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