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MRI Resources 
MRI Technician and Technologist Schools - MRI Technician and Technologist Jobs - Sequences - Image Quality - Education - MRA
 
MAGNETOM Symphony™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
www.med.siemens.com/med/d/gg/mr/products/symphony1.html From Siemens Medical Systems;
with the introduction of this system, it is possible to perform contrast MR angiography for abdominal, thoracic and neck vessels from the origins to the circle of Willis. The system also has many newer features including functional imaging, spectroscopy, advanced body, ortho- and neuroimaging.
Device Information and Specification
CLINICAL APPLICATION
Whole body
CONFIGURATION
Compact
Yes/SVS or CSI opt.
SYNCHRONIZATION
ECG/peripheral, respiratory gating
PULSE SEQUENCES
GRE, IR, FIR, STIR, TrueIR/FISP, FSE, FLAIR, MT, SS-FSE, MT-SE, MTC, MSE, EPI, GMR, fat/water sat./exc.
IMAGING MODES
Single, multislice, volume study, multi angle, multi oblique
TR
2.4 msec std.; 2.0 opt.; 1.8 w/30 mT/m at 256matrix
TE
1.1 msec std.; 0.9 opt.; 0.78 w/30 mT/m at 256matrix
SINGLE/MULTI SLICE
178 images/sec at 256 x 256 at 100% FOV
0.5 cm - 50 cm
Min 2D/3D: 0.1/0.05 mm
1024 x 1024 full screen display
MEASURING MATRIX
64 x 64 to 1024 x 1024
PIXEL INTENSITY
21 micrometer in plane, 11 micrometer optional
60 cm
MAGNET WEIGHT
4050kg, 5500kg in operation
H*W*D
236 x 215 x 160 cm w/covers
POWER REQUIREMENTS
380/400/420/440/480 V
COOLING SYSTEM TYPE
Single cryogen, 2 stage refrig.
Liquid He
STRENGTH
20/35 mT/m standard, 30/52 opt.
5-GAUSS FRINGE FIELD
2.5 m / 4.0 m
Passive, act.; 1st order std./2nd opt.
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• Related Searches:
    • MRI Equipment
    • Hardware
    • Device
    • Open MRI
    • Low Field MRI
 
Further Reading:
  Basics:
Symphony Brochure(.pdf)
MRI Resources 
Health - Safety Products - Collections - Crystallography - Liver Imaging - Intraoperative MRI
 
MAGNETOM Trio™ (TIM System)InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.
 
www.medical.siemens.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10001&langId=-11&catalogId=-11&catTree=100001%2C12786%2C12754&level=0&productId=145739 From Siemens Medical Systems;
The Magnetom Trio™, a 3T whole body MRI system with Tim (total imaging matrix technology), targets clinical applications such as abdominal, cardiac, spine, whole body and orthopedics. TIM enables flexible coil combinations for high resolution imaging of large anatomical areas without the need to change coils.
Device Information and Specification
CLINICAL APPLICATION
Whole body
CONFIGURATION
Short bore
CP head, CP integrated body coil, neck matrix, breast array, 8-channel knee array, CP wrist, shoulder array, CP extremity
Yes/Mutli-nuclear MRS
PULSE SEQUENCES
SE, IR, 2D/3D TurboSE, Turbo IR, Dark-Fluid IR, True IR, 2D/3D MEDIC, 2D/3D GRE FLASH, 2D/3D GRE FISP, 2D/3D PSIF, 2D TurboFLASH, 3D MP-RAGE, 3D TurboFLASH, 2D/3D TOF angiography, MTC, TONE with 3D TOF MRA, GMR, LOTA
IMAGING MODES
Single, multislice, volume study, multi angle, multi oblique
SINGLE/MULTI SLICE
178 images/sec at 256 x 256 at 100% FOV
40 cm
Min 2D/3D: 0.1/0.05 mm
1024 x 1024 full screen display
MEASURING MATRIX
64 x 64 to 1024 x 1024
10 micrometer
60 cm
MAGNET WEIGHT
12000 kg
H*W*D
221 x 244 x 213 cm
POWER REQUIREMENTS
380/400/420/440/480 V
COOLING SYSTEM TYPE
Single cryogen, 2 stage refrig.
0.12 L/hr helium
STRENGTH
40 - 45 mT/m
200 mT/m/ms
5-GAUSS FRINGE FIELD
3.4 m / 5.9 m
Passive, act.; 1st order std./2nd opt.
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MRI Resources 
Resources - Mobile MRI Rental - Lung Imaging - Coils - Absorption and Emission - MRI Training Courses
 
MAGNETOM Verio
 
www.healthcare.siemens.com/magnetic-resonance-imaging/3t-mri-scanner/magnetom-verio From Siemens Medical Systems;
Received FDA clearance in 2007.
The MAGNETOM Verio provides up to 102 integrated matrix coil elements and up to 32 independent radiofrequency channels that allow flexible coil combinations to make patient and coil repositioning virtually unnecessary. The Tim (total imaging matrix) technology also increases patient throughput due to a shorter scan time.
The open bore design offers great comfort for patients of all shapes and sizes.
Device Information and Specification
CLINICAL APPLICATION
Whole Body
CONFIGURATION
Ultra-short open bore
3 Tesla
Head, spine, torso/ body coil, neurovascular, cardiac, neck and multi-purpose flex coils. Peripheral vascular, breast, shoulder, knee, wrist, foot//ankle, TMJ optional.
CHANNELS (min. / max. configuration)
8, 18, 32
Chemical shift imaging, single voxel spectroscopy
IMAGING TECHNIQUES
iPAT, mSENSE and GRAPPA (image, k-space), noncontrast angiography, radial motion compensation, Dixon
MINIMUM TR
3-D GRE: 1.5 (256 matrix)
MINIMUM TE
3-D GRE: 0.63 (256 matrix)
FOV
0.5 - 50 cm
BORE DIAMETER
or W x H
At isocenter: L-R 70 cm, A-P 55 cm
TABLE CAPACITY
250 kg
MAGNET WEIGHT (gantry included)
8200 kg
DIMENSION H*W*D (gantry included)
173 x 230 x 222 cm
5-GAUSS FRINGE FIELD
2.6 m / 4.6 m
CRYOGEN USE
Zero boil off rate, refill approx. 10 years
COOLING SYSTEM
Water
up to 200 T/m/s
MAX. AMPLITUDE
45 mT/m
Passive, active; first order, second order standard
POWER REQUIREMENTS
380 / 400 / 420 / 440 / 460 / 480 V, 3-phase + ground; 110 kVA
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MRI Resources 
Collections - Chemistry - Claustrophobia - Shielding - Distributors - Services and Supplies
 
MAGNETOM™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
www.medical.siemens.com From Siemens Medical Systems;
70 cm + 125 cm + 1.5T and Tim - a combination never seen before in MRI ... MAGNETOM Espree™s unique open bore design can accommodate more types of patients than other 1.5T systems on the market today, in particular the growing population of obese patients. The power of 1.5T combined with Tim technology boosts signal to noise, which is necessary to adequately image obese patients.
Device Information and Specification
CLINICAL APPLICATION
Whole body
CONFIGURATION
Open bore
Body, Tim [32 x 8], Tim [76 coil elements with up to 18 RF channels])
SYNCHRONIZATION
ECG/peripheral: Optional/yes, respiratory gating
PULSE SEQUENCES
GRE, IR, FIR, STIR, TrueIR/FISP, FSE, FLAIR, MT, SS-FSE, MT-SE, MTC, MSE, EPI, 3D DESS//CISS/PSIF, GMR
IMAGING MODES
Single, multislice, volume study, multi angle, multi oblique
SINGLE/MULTI SLICE
Image Processor reconstructing up to 3226 images per second (256 x 256, 25% recFoV)
FOV
35 cm coronal//sagittal, 45 cm axial
Min 2D/3D: 0.1/0.05 mm
1024 x 1024 full screen display
MEASURING MATRIX
64 x 64 to 1024 x 1024
BORE DIAMETER
or W x H
70 cm diameter
MAGNET WEIGHT
3800 kg
H*W*D
? x ? x 125 cm
STRENGTH
33 mT/m
5-GAUSS FRINGE FIELD
2.5 m / 3.8 m
Passive, active
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• View the DATABASE results for 'MAGNETOM Espree™' (2).Open this link in a new window

 
Further Reading:
  News & More:
First 1.5 Tesla Open Bore MRI Introduced
Tuesday, 10 August 2004   by www.hospimedica.com    
Obesity May Influence Imaging Diagnosis
Wednesday, 22 December 2004   by www.hospimedica.com    
MRI Resources 
Artifacts - Quality Advice - Lung Imaging - Mobile MRI Rental - Breast Implant - NMR
 
MRI SafetyMRI Resource Directory:
 - Safety -
 
There are different types of contraindications that would prevent a person from being examined with an MRI scanner. MRI systems use strong magnetic fields that attract any ferromagnetic objects with enormous force. Caused by the potential risk of heating, produced from the radio frequency pulses during the MRI procedure, metallic objects like wires, foreign bodies and other implants needs to be checked for compatibility. High field MRI requires particular safety precautions. In addition, any device or MRI equipment that enters the magnet room has to be MR compatible. MRI examinations are safe and harmless, if these MRI risks are observed and regulations are followed.

Safety concerns in magnetic resonance imaging include:
•
the magnetic field strength;
•
possible 'missile effects' caused by magnetic forces;
•
the potential for heating of body tissue due to the application of the radio frequency energy;
•
the effects on implanted active devices such as cardiac pacemakers or insulin pumps;
•
magnetic torque effects on indwelling metal (clips, etc.);
•
the audible acoustic noise;
•
danger due to cryogenic liquids;
•
the application of contrast medium;
mri safety guidance
MRI Safety Guidance
It is important to remember when working around a superconducting magnet that the magnetic field is always on. Under usual working conditions the field is never turned off. Attention must be paid to keep all ferromagnetic items at an adequate distance from the magnet. Ferromagnetic objects which came accidentally under the influence of these strong magnets can injure or kill individuals in or nearby the magnet, or can seriously damage every hardware, the magnet itself, the cooling system, etc.. See MRI resources Accidents.
The doors leading to a magnet room should be closed at all times except when entering or exiting the room. Every person working in or entering the magnet room or adjacent rooms with a magnetic field has to be instructed about the dangers. This should include the patient, intensive-care staff, and maintenance-, service- and cleaning personnel, etc..
The 5 Gauss limit defines the 'safe' level of static magnetic field exposure. The value of the absorbed dose is fixed by the authorities to avoid heating of the patient's tissue and is defined by the specific absorption rate. Leads or wires that are used in the magnet bore during imaging procedures, should not form large-radius wire loops. Leg-to-leg and leg-to-arm skin contact should be prevented in order to avoid the risk of burning due to the generation of high current loops if the legs or arms are allowed to touch. The patient's skin should not be in contact with the inner bore of the magnet.
The outflow from cryogens like liquid helium is improbable during normal operation and not a real danger for patients.
The safety of MRI contrast agents is tested in drug trials and they have a high compatibility with very few side effects. The variations of the side effects and possible contraindications are similar to X-ray contrast medium, but very rare. In general, an adverse reaction increases with the quantity of the MRI contrast medium and also with the osmolarity of the compound.

See also 5 Gauss Fringe Field, 5 Gauss Line, Cardiac Risks, Cardiac Stent, dB/dt, Legal Requirements, Low Field MRI, Magnetohydrodynamic Effect, MR Compatibility, MR Guided Interventions, Claustrophobia, MRI Risks and Shielding.
Radiology-tip.comradRadiation Safety,  Ionizing Radiation
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Medical-Ultrasound-Imaging.comUltrasound Safety,  Absorbed Dose
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• View the DATABASE results for 'MRI Safety' (42).Open this link in a new window


• View the NEWS results for 'MRI Safety' (13).Open this link in a new window.
 
Further Reading:
  Basics:
MRI Safety
2001   by www.fda.gov    
What MRI Sequences Produce the Highest Specific Absorption Rate (SAR), and Is There Something We Should Be Doing to Reduce the SAR During Standard Examinations?
Thursday, 16 April 2015   by www.ajronline.org    
Contrast Agents: Safety Profile
   by www.clinical-mri.com    
  News & More:
How safe is 7T MRI for patients with neurosurgical implants?
Thursday, 17 November 2022   by healthimaging.com    
Newer Heart Devices Safe During MRI
Monday, 23 August 2004   by www.hospimedica.com    
Study: Face Masks Unsafe in MRI Machines
Wednesday, 13 July 2022   by www.laboratoryequipment.com    
COVID-19: Attention shifts to MRI infection control
Thursday, 9 July 2020   by https://www.auntminnieeurope.com/index.aspx?sec=ser§sub=def§pag=dis§ItemID=619012    
FDA Releases New Guidance On Establishing Safety, Compatibility Of Passive Implants In MR Environments
Tuesday, 16 December 2014   by www.meddeviceonline.com    
Modern Implantable Heart Devices Safe For Use In MRI Scans
Wednesday, 16 March 2005   by www.sciencedaily.com    
MRI Resources 
Safety Products - Shielding - Cochlear Implant - Knee MRI - Spectroscopy pool - MRI Training Courses
 
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