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Result : Searchterm 'brain' found in 3 terms [ ] and 54 definitions [ ]
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Quick Overview
DESCRIPTION
Localized inhomogeneous brightness
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Uneven intensity or brightness may occasionally be noted on high field MRI e.g. of the brain. There are various causes of localized inhomogeneous brightness across the MRI images such as improper tuning of the RF transceiver, unbalanced deposition of the RF energy due to incorrect geometry and localized attenuation due to positioning or anatomical variants.
Image Guidance
Tuning of the RF transceiver, a homogeneity correction filter and better positioning of the scanned object and/or coil in the scanner. | | | | | |
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From GE Healthcare;
The Signa HDx MRI system is GE's leading edge whole body magnetic resonance scanner designed to support high resolution, high signal to noise ratio, and short scan times.
Signa HDx 3.0T offers new technologies like ultra-fast image reconstruction through the new XVRE recon engine, advancements in parallel imaging algorithms and the broadest range of premium applications. The HD applications, PROPELLER (high-quality brain imaging extremely resistant to motion artifacts), TRICKS (contrast-enhanced angiographic vascular lower leg imaging), VIBRANT (for breast MRI), LAVA (high resolution liver imaging with shorter breath holds and better organ coverage) and MR Echo (high-definition cardiac images in real time) offer unique capabilities.
Device Information and Specification CLINICAL APPLICATION Whole body
CONFIGURATION Compact short bore SE, IR, 2D/3D GRE, RF-spoiled GRE, 2DFGRE, 2DFSPGR, 3DFGRE, 3DFSPGR, 3DTOFGRE, 3DFSPGR, 2DFSE, 2DFSE-XL, 2DFSE-IR, T1-FLAIR, SSFSE, EPI, DW-EPI, BRAVO, Angiography: 2D/3D TOF, 2D/3D phase contrast vascular IMAGING MODES Single, multislice, volume study, fast scan, multi slab, cine, localizer H*W*D 240 x 2216,6 x 201,6 cm POWER REQUIREMENTS 480 or 380/415, 3 phase ||
COOLING SYSTEM TYPE Closed-loop water-cooled grad. | | | | | |
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From GE Healthcare;
three dedicated MRI systems - a neuro imager, a cardiovascular system, and a whole body scanner - all in one system.
Device Information and Specification CLINICAL APPLICATION Whole body Head and body coil standard; all other coils optional; open architecture makes system compatible with a wide selection of coils Optional 2D/3D brain and prostate Standard: SE, IR, 2D/3D GRE and SPGR, Angiography: 2D/3D TOF, 2D/3D Phase Contrast;; 2D/3D FSE, 2D/3D FGRE and FSPGR, SSFP, FLAIR, EPI, optional: 2D/3D Fiesta, FGRET, Spiral, TensorTR 1.2 to 12000 msec in increments of 1 msec TE 0.4 to 2000 msec in increments of 1 msec 2D 0.7 mm to 20 mm; 3D 0.1 mm to 5 mm 128x512 steps 32 phase encode POWER REQUIREMENTS 480 or 380/415 Less than 0.03 L/hr liquid He STRENGTH Zoom 40 mT/m, whole body 23 mT/m 4.0 m x 2.8 m axial x radial | | | |
• View the DATABASE results for 'Signa Infinity 1.5T™ TwinSpeed with Excite' (2).
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From GE Healthcare;
'EXCITE technology has the potential to open the door to new imaging techniques and clinical applications, leaping beyond conventional two and three-dimensional MRI to true 4D imaging that will improve the diagnosis of disease throughout the human body from head to foot.' Robert R. Edelman, M.D., Professor of Radiology at Northwestern University Medical School and Chairman, Department of Radiology, at Evanston Northwestern Healthcare.
Device Information and Specification CLINICAL APPLICATION Whole body Head and body coil standard; all other coils optional; open architecture makes system compatible with a wide selection of coils Optional 2D/3D brain and prostate Standard: SE, IR, 2D/3D GRE and SPGR, Angiography: 2D/3D TOF, 2D/3D Phase Contrast;; 2D/3D FSE, 2D/3D FGRE and FSPGR, SSFP, FLAIR, EPI, optional: 2D/3D Fiesta, FGRET, Spiral, TensorTR 1.3 to 12000 msec in increments of 1 msec TE 0.4 to 2000 msec in increments of 1 msec 2D 0.7 mm to 20 mm; 3D 0.1 mm to 5 mm 128x512 steps 32 phase encode 0.08 mm; 0.02 mm optional POWER REQUIREMENTS 480 or 380/415 less than 0.03 L/hr liquid heliumSTRENGTH SmartSpeed 23 mT/m, HiSpeed Plus 33 mT/m, EchoSpeed Plus 33 mT/m 4.0 m x 2.8 m axial x radial | | | |
• View the DATABASE results for 'Signa Infinity 1.5T™ with Excite' (2).
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Plural of spectrum. Spectra are components of the MR signal according to frequencies. Spectroscopy uses NMR spectral components to identify the metabolites, e.g. of the brain. | | | |
• View the DATABASE results for 'Spectra' (47).
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