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 TMJ          Temporal Mandibular Joint 
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News  (1)  
 
AIRIS II™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
www.hitachimed.com/products/airis_2.asp

From Hitachi Medical Systems America Inc.;
the AIRIS II, an entry in the diagnostic category of open MR systems, was designed by Hitachi Medical Systems America Inc. (Twinsburg, OH, USA) and Hitachi Medical Corp. (Tokyo) and is manufactured by the Tokyo branch. A 0.3 T field-strength magnet and phased array coils deliver high image quality without the need for a tunnel-type high-field system, thereby significantly improving patient comfort not only for claustrophobic patients.


Device Information and Specification
CLINICAL APPLICATION Whole body
CONFIGURATION Vertical Field, Open MRI
SURFACE COILS QD Head, MA Head and Neck, QD C-Spine, MA or QD Shoulder, MA CTL Spine, QD Knee, Neck, QD TMJ, QD Breast, QD Flex Body (4 sizes), Small and Large Extrem., QD Wrist, MA Foot and Ankle (WIP), PVA (WIP)
SPECTROSCOPY No
SYNCHRONIZATION Cardiac gating, ECG/peripheral, respiratory gating (2 modes)
PULSE SEQUENCES SE, GE, GR, IR, FIR, STIR, FSE, ss-FSE, FLAIR, EPI -DWI, SE-EPI, ms - EPI, SSP, MTC, SARGE, RSSG, TRSG, MRCP, Angiography: CE, 2D/3D TOF
IMAGING MODES Single, multislice, volume study
TR SE: 30 - 10,000msec GE: 20 - 10,000msec IR: 50 - 16,700msec FSE: 200 - 16,7000msec
TE SE : 10 - 250msec IR: 10 -250msec GE: 5 - 50 msec FSE: 15 - 2,000
SINGLE/MULTI SLICE 0.05 sec/image (256 x 256)
FOV 5cm to 42 cm continuous
SLICE THICKNESS 2D: 2 - 100 mm; 3D: 0.5 - 5 mm
DISPLAY MATRIX 1280 x 1024
MEASURING MATRIX 512 x 512
PIXEL INTENSITY Level Range: -2,000 to +4,000
SPATIAL RESOLUTION Sub millimeter
MAGNET TYPE Self-shielded, permanent
BORE DIAMETER
or W x H
110 x 43 cm
MAGNET WEIGHT 15,700 kg
H*W*D 79 x 111 x 73 cm
POWER REQUIREMENTS 208/220/240 V, single phase
COOLING SYSTEM TYPE Air-cooled
CRYOGEN USE
FIELD STRENGTH 0.3 T
STRENGTH 15 mT/m
5 GAUSS FRINGE FIELD 2.0 m lateral, 2.5 m vert./long
SHIMMING Auto shimming, 3-axis/patient, and volume shim

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Altaire™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
www.hitachimed.com/products/altaire.asp

From Hitachi Medical Systems America, Inc.;
the AIRIS made its debut in 1995. Hitachi followed up with the AIRIS II system, which has proven equally successfully. 'All told, Hitachi has installed more than 1,000 MRI systems in the U.S., holding more than 17 percent of the total U.S. MRI installed base, and more than half of the installed base of open MR systems,' says Antonio Garcia, Frost and Sullivan industry research analyst. Now Altaire employs a blend of innovative Hitachi features called VOSI™ technology, optimizing each sub-system's performance in concert with the other sub-systems, to give the seamless mix of high-field performance and the patient comfort, especially for claustrophobic patients, of open MR systems.


Device Information and Specification
CLINICAL APPLICATION Whole body
CONFIGURATION Vertical Field, Open MRI
SURFACE COILS DualQuad T/R Body Coil, MA Head, MA C-Spine, MA Shoulder, MA Wrist, MA CTL Spine, MA Knee, MA TMJ, MA Flex Body (3 sizes), Neck, small and large Extremity, PVA (WIP), Breast (WIP), Neurovascular (WIP), Cardiac (WIP) and MA Foot//Ankle (WIP)
SPECTROSCOPY No
SYNCHRONIZATION Cardiac gating, ECG/peripheral, respiratory gating (2 modes)
PULSE SEQUENCES SE, GE, GR, IR, FIR, STIR, ss-FSE, FSE, DE-FSE/FIR, FLAIR, ss/ms-EPI, ss/ms EPI- DWI, SSP, MTC, SE/GE-EPI, MRCP, SARGE, RSSG, TRSG, BASG, Angiography: CE, PC, 2D/3D TOF
IMAGING MODES Single, multislice, volume study
TR SE: 30 - 10,000msec GE: 3.6 - 10,000msec IR: 50 - 16,700msec FSE: 200 - 16,7000msec
TE SE : 8 - 250msec IR: 5.2 -7,680msec GE: 1.8 - 2,000 msec FSE: 5.2 - 7,680
SINGLE/MULTI SLICE 0.05 sec/image (256 x 256)
FOV 5cm to 45 cm continuous
SLICE THICKNESS 2D: 2 - 100 mm; 3D: 0.5 - 5 mm
DISPLAY MATRIX 1280 x 1024
MEASURING MATRIX 512 x 512
PIXEL INTENSITY Level Range: -2,000 to +4,000
SPATIAL RESOLUTION Sub millimeter
MAGNET TYPE Self-shielded, superconducting
BORE DIAMETER
or W x H
115 x 47 cm
MAGNET WEIGHT 41,700 kg
H*W*D 256 x 348 x 236 cm
POWER REQUIREMENTS 208 V +/- 10%, 3 phase
COOLING SYSTEM TYPE Water-cooled
CRYOGEN USE Refill 1/year
FIELD STRENGTH 0.7 T
STRENGTH 22 mT/m
5 GAUSS FRINGE FIELD 3.1 m lateral, 3.6 m vertical
SHIMMING Auto shimming, 3-axis/patient and active shimming

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• View the DATABASE results for 'Altaire™' (2).Open this link in a new window

 
Further Reading:
  News & More:
Altaire High-Field Open MRI(.pdf)
2001
MRI Resources 
Abdominal Imaging - Journals - MR Myelography - RIS - Liver Imaging - Movies
 
CHORUS 1.5T™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
www.isoltech.co.kr/english/product/default.htm

From ISOL Technology
'Next generation MRI system 1.5T CHORUS developed by ISOL Technology is optimized for both clinical diagnostic imaging and for research development.
CHORUS offers the complete range of feature oriented advanced imaging techniques- for both clinical routine and research. The compact short bore magnet, the patient friendly design and the gradient technology make the innovation to new degree of perfection in magnetic resonance.'


Device Information and Specification
CLINICAL APPLICATION Whole body
CONFIGURATION Short bore
SURFACE COILS Head, C-spine, L-spine, TMJ, Knee, Shoulder, General purpose, Phased Array System: 4 digital receiver channels (Up to 12 channels)
SPECTROSCOPY Optional
SYNCHRONIZATION ECG/peripheral: Optional/yes, respiratory gating
PULSE SEQUENCES Spin Echo, Gradient Echo, Fast Spin Echo, Inversion Recovery (STIR, Fluid Attenuated Inversion Recovery), FLASH, FISP, PSIF, Turbo Flash ( MPRAGE ),TOF MR Angiography, Standard echo planar imaging package (SE-EPI, GE-EPI), Optional: Advanced P.A. Imaging Package (up to 4 ch.), Advanced echo planar imaging package, Single Shot and Diffusion Weighted EPI, IR/FLAIR EPI
IMAGING MODES 2D/3D, Travelling Sat, Multi-Slab 3D, MTC and TONE Pulse Sequence, Fat/Water Suppression, Presaturation (up to 6 bands), Flow Compensation using GMR pulse, Multi-Slice, Multi-Group Imaging
SINGLE/MULTI SLICE Image reconstruction time (2562 ) : 0.02 s
FOV 40 cm
MAGNET TYPE Superconducting
BORE DIAMETER
or W x H
58 cm diameter (patient)
MAGNET WEIGHT 4050 kg
H*W*D 233 x 206 x 160 cm
COOLING SYSTEM TYPE Water-cooled coil and air-cooled amplifier
CRYOGEN USE 0.07 L/hr helium
FIELD STRENGTH 1.5 T
STRENGTH 20 mT/m (Upto 27 mT/m)
5-GAUSS FRINGE FIELD 2.5 m / 3.8 m
SHIMMING Passive and active


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• View the DATABASE results for 'CHORUS 1.5T™' (2).Open this link in a new window

Searchterm 'TMJ' was also found in the following service: 
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News  (1)  
 
ENCORE 0.5T™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
www.isoltech.co.kr/english/product/05t.htm

From ISOL Technology
'MRI system is not an expensive equipment anymore. ENCORE developed by ISOL Technology is a low cost MRI system with the advantages like of the 1.0T MRI scanner. Developed specially for the overseas market, the ENCORE is gaining popularity in the domestic market by medium sized hospitals.
Due to the optimum RF and Gradient application technology. ENCORE enables to obtain high resolution imaging and 2D/3D Angio images which was only possible in high field MR systems.'
- Less consumption of the helium gas due to the ultra-lightweight magnet specially designed and manufactured for ISOL. - Cost efficiency MR system due to air cooling type (equivalent to permanent magnetic). - Patient processing speed of less than 20 minutes



Device Information and Specification
CLINICAL APPLICATION Whole body
CONFIGURATION Short bore compact
SURFACE COILS Head, C-spine, L-spine, TMJ, Knee, Shoulder, General purpose, Phased Array System: 4 digital receiver channels (Up to 12 channels)
SYNCHRONIZATION ECG/peripheral: Optional/yes, respiratory gating
PULSE SEQUENCES Spin Echo, Gradient Echo, Fast Spin Echo, Inversion Recovery (STIR, FLAIR), FLASH, FISP, PSIF, Turbo Flash ( MPRAGE ),TOF MR Angiography
IMAGING MODES 2D/3D, Travelling Sat, Multi-Slab 3D, MTC and TONE Pulse Sequence, Fat/Water Suppression, Presaturation (up to 6 bands), Flow Compensation using GMR pulse, Multi-Slice, Multi-Group Imaging
SINGLE/MULTI SLICE Image reconstruction time (2562 ) : 0.02 s
FOV 40 cm
MAGNET TYPE Superconducting
BORE DIAMETER
or W x H
58 cm diameter
MAGNET WEIGHT 3200 kg
H*W*D 200 x 168 x 187 cm
COOLING SYSTEM TYPE Air-cooled coil and amplifier
CRYOGEN USE 0.05 L/hr helium
FIELD STRENGTH 0.5 T
STRENGTH 15 mT/m
5-GAUSS FRINGE FIELD 2.3 m / 3.1 m
SHIMMING Passive and active

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• View the DATABASE results for 'ENCORE 0.5T™' (2).Open this link in a new window

MRI Resources 
Databases - Safety pool - Research Labs - Artifacts - Open Directory Project - Health
 
Excelart AG™ with PianissimoInfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
From Toshiba America Medical Systems Inc.;
http://www.medical.toshiba.com/clinical/radiology/15texcelart.htm

the EXCELART is a superconducting whole body MRI system with a short wide-bore magnet, operating at 1.5 T. It features powerful high-speed gradients with a revolutionary gradient acoustic noise reduction system: Pianissimo. The dramatic reduction of gradient acoustic noise by Pianissimo greatly enhances patient comfort during exams. The standard array platform and a wide range of array coils ensure excellent images. A powerful 64-bit RISC-based computer system and newly developed array processor realize high productivity.


Device Information and Specification
CLINICAL APPLICATION Whole body
CONFIGURATION Cylindrical Wide Short Bore
SURFACE COILS Body, head, spine, knee, neck, TMJ, extremity, breast, shoulder
SPECTROSCOPY Opt. (WIP) Single and Multi Voxel
SYNCHRONIZATION ECG: standard; peripheral: optional, respiratory gating
PULSE SEQUENCES SE, FE, IR, FastSE, FastIR, FastFLAIR, Fast STIR, FastFE, FASE, Hybrid EPI, Multi Shot EPI; Angiography: 2D(gate/non-gate)/3D TOF, SORS-STC
IMAGING MODES Single, multislice, volume study
TR 3.5-30000 msec
TE 8 msec min. SE; 1.2 msec min. FE
SINGLE/MULTI SLICE less than 0.015 (256x256)
FOV 2 cm
SLICE THICKNESS 1.0 min. 2-DFT: 0.2 min. 3-DFT
DISPLAY MATRIX Up to 1024
MEASURING MATRIX 32-1024, phase;; 64-1024, freq.
PIXEL INTENSITY 256 gray levels
SPATIAL RESOLUTION 0.16 mm
MAGNET TYPE Superconducting
BORE DIAMETER
or W x H
65.5 cm, patient aperture
MAGNET WEIGHT 4050 kg (bare magnet incl. L-He)
H*W*D 235 x 219 x 199 cm
POWER REQUIREMENTS 380/400/415/440/480 V
COOLING SYSTEM TYPE Closed-loop water-cooled
CRYOGEN USE Liquid helium: approx. less than 0.05 L/hr
FIELD STRENGTH 1.5 T
STRENGTH 25 mT/m
5-GAUSS FRINGE FIELD 2.5 m / 4.0 m
SHIMMING Passive, active, auto-active


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In 2075 (after about 100 years of ...) the MRI scan will be :
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