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Result : Searchterm 'Shimming' found in 3 terms [] and 76 definitions []
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Searchterm 'Shimming' was also found in the following services: 
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News  (1)  Resources  (2)  Forum  (9)  
 
Vantageā„¢InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
http://www.medical.toshiba.com/clinical/radiology/vantage.htm From Toshiba America Medical Systems Inc.;
With its high-field strength, the Vantageā„¢ delivers the clinical capabilities and image quality expected by cardiologists, while simultaneously offering patients a more comfortable and non-invasive option, said Dane Peshe, director, MRI Business Unit, Toshiba America Medical Systems. Vantageā„¢ supports a full complement of cardiovascular imaging studies, ranging from stroke evaluation to peripheral vascular imaging. Additionally, the ultra short bore design offers patients a greater feeling of openness that reduces claustrophobic sensations, while Toshiba's exclusive, patented Pianissimoā„¢ technology reduces scan noise by as much as 90 percent for a more pleasant experience.'
Device Information and Specification
CLINICAL APPLICATION
Whole body
CONFIGURATION
Ultra short bore
SYNCHRONIZATION
ECG/peripheral, respiratory gating
PULSE SEQUENCES
SE, FE, IR, FastSE, FastIR, FastFLAIR, Fast STIR, FastFE, FASE, EPI, SuperFASE; Angiography: 2D(gate/non-gate)/3D TOF, SORS-STC
IMAGING MODES
Single, multislice, volume study
50 cm
Up to 1024
MEASURING MATRIX
32-1024, phase;; 64-1024, freq.
PIXEL INTENSITY
256 gray levels
65.5 cm
H*W*D
? x ? x 149.5 cm
POWER REQUIREMENTS
380/400/415/440/480 V
COOLING SYSTEM TYPE
Closed-loop water-cooled
Liquid helium: approx. less than 0.05 L/hr
STRENGTH
30 mT/m
Passive, active, auto-active
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Further Reading:
  Basics:
Toshiba Receives FDA Clearance for Vantage Titan MR System
Monday, 28 January 2008   by www.businesswire.com    
MRI Resources 
Blood Flow Imaging - Mass Spectrometry - Absorption and Emission - Calculation - Musculoskeletal and Joint MRI - MRI Accidents
 
Virgoā„¢InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
www.canamglobal.com/mri/virgomri.html From Millennium Technology Inc. This open C-shaped MRI system eases patient comfort and technologist maneuverability. This low cost scanner is build for a wide range of applications. The Virgo™ patient table is detachable and moves on easy rolling castors. Able to accommodate patient weights up to 160 kg, the tabletop has a range of motion of 30 cm in the lateral direction and 90cm in the longitudinal direction. Images generated with this scanner can only be viewed (without data loss) on Millennium's proprietary viewing software.
Device Information and Specification
CLINICAL APPLICATION
Whole body
CONFIGURATION
C shaped
SYNCHRONIZATION
Standard cardiac gating, ECG/peripheral, respiratory gating
PULSE SEQUENCES
2D Spin Echo (single and multi-echo), 2D Inversion Recovery, 2D Sequential and 3D Volume Gradient Echo, 2D and 3D Spoiled Gradient Echo
IMAGING MODES
Localizer, single slice, multislice, volume, fast, POMP, multi slab, cine, slice and frequency zip, extended dynamic range, tailored RF
TR
steps of 1 msec
TE
steps of 1 msec
SINGLE/MULTI SLICE
Simultaneous scan and reconstruction;; 100 images/second reconstruction
400 mm
2D : 2 mm; 3D : 0.5 mm
MEASURING MATRIX
512x512
PIXEL INTENSITY
256 gray levels
MAGNET TYPE
Permanent
BORE DIAMETER
or Vertical Gap
44 cm
STRENGTH
15 mT/m
5-GAUSS FRINGE FIELD
3 m/3 m
Passive
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MRI Resources 
Jobs - - Education - Homepages - MRI Technician and Technologist Jobs - Manufacturers
 
Volume ShimForum -
related threads
 
Shimming corrects local magnetic field inhomogeneities by adjusting the static gradients. A volume shim enables the shim volume to be limited. This local 3D shim provides a more precise result and therefore a better fat saturation. For spectroscopy, it provides a better starting value for an interactive shim.
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• View the DATABASE results for 'Volume Shim' (2).Open this link in a new window

 
Further Reading:
  Basics:
Improved shim method based on the minimization of the maximum off-resonance frequency for balanced SSFP
Monday, 1 June 2009   by www.ncbi.nlm.nih.gov    
  News & More:
Implementation of Dual-Source RF Excitation in 3 T MR-Scanners Allows for Nearly Identical ADC Values Compared to 1.5 T MR Scanners in the Abdomen
Wednesday, 29 February 2012   by www.plosone.org    
Searchterm 'Shimming' was also found in the following services: 
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News  (1)  Resources  (2)  Forum  (9)  
 
iMotionā„¢ 1.5 Tesla MagnetInfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
www.imris.com/ The mobile intraoperative iMotion system produces real-time images used for MR guided surgery and offers functional magnetic resonance imaging, MR spectroscopy, perfusion imaging, and diffusion weighted imaging capabilities.
The iMotion 1.5 T magnet moves to the patient, gliding in and out of place as needed, without affecting surgical, anesthetic, and nursing management.

See also Intraoperative Magnetic Resonance Imaging, MR Guided Interventions.
Device Information and Specification
CLINICAL APPLICATION
Whole body
CONFIGURATION
Mobile compact
Whole body, intra-operative head, neck volume, atlas head//neck vascular quadrature phased array, spine quadrature, C/T/L spine phased array, small joint, large joint, TMJ bilateral, shoulder phased array, extremity quadrature volume, wrist, hand quadrature, general purpose flexible, pelvis/abdomen phased array, body quadrature, phased array flexible, breast bilateral
SYNCHRONIZATION
Standard cardiac gating, ECG/peripheral, respiratory gating
PULSE SEQUENCES
SE, IR, TSE, EPI, Diffusion, Perfusion, Angiography
IMAGING MODES
Localizer, single slice, multislice, volume
Active
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• View the DATABASE results for 'iMotion™ 1.5 Tesla Magnet' (2).Open this link in a new window

MRI Resources 
Software - Diffusion Weighted Imaging - Image Quality - MRI Physics - Online Books - MRI Technician and Technologist Jobs
 
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MRI is trending to low field magnets :
reduced costs will lead to this change 
AI will close the gap to high field 
only in remote areas 
is only temporary 
never 

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