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Odin Medical Technologies, Inc.MRI Resource Directory:
 - Manufacturers -
 
www.odinmed.com/site/index.asp Odin Medical Technologies, Ltd. was founded in Israel, in 1996. Odin Medical Technologies, Inc. was established in early 2000 in the United States as a wholly owned subsidiary.
Odin Medical Technologies develops and manufactures intraoperative magnetic resonance imaging (MRI) image guidance systems designed to improve neurosurgical interventions with a special focus on minimally invasive procedures.

MRI Related Product Line:
PoleStar™

Contact Information
MAIL Odin Medical Technologies, Inc.
29 Crafts Street,
Suite 420
Newton, MA 02458
USA
PHONE +1-617-527-1785
Toll Free(USA): 877-329-6346
FAX +1-617-527-1786
Contact Form Contact Us
ONLINE www.odinmed.com

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PoleStar™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
www.odinmed.com/site/content/system/benefits.asp From Odin Medical Technologies, Inc.;
the PoleStar™ N-10 is a compact, mobile MRI scanner that mounts to a standard operating room table. The magnets raise into position for imaging, but lower to make surgery easier, and the low magnetic field makes it possible to use many conventional surgical instruments.
When not in use, the PoleStar™ is stored in a nearby closet that allows the room to be used for conventional surgical procedures. The PoleStar™ N-10 is supplied with a fully integrated image guidance system that utilizes intraoperatively acquired images.
The successor, the new PoleStar™ N20 sets a new standard in intraoperative magnetic resonance imaging.
Device Information and Specification
CLINICAL APPLICATION Intraoperative
CONFIGURATION Semi-portable open MRI
MAGNET TYPE Permanent Magnet
MAGNET WEIGHT 500 kg
H*W*D 97x139x110 cm
FIELD STRENGTH 0.15 T
5-GAUSS FRINGE FIELD 1.5 m
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Intera 1.0T™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
From Philips Medical Systems;
www.medical.philips.com/de/products/mri/products/ the Intera-family offers with this mid field system maximum efficiency, flexibility and performance. All Philips MR products contain SENSE (coil SENSitivity Encoding) technology - that increases scanning speed.

Device Information and Specification
CLINICAL APPLICATION Whole body
CONFIGURATION Short bore compact
SURFACE COILS Standard: head, body, C1, C3; Optional: Small joint, flex-E, flex-R, endocavitary (L and S), dual TMJ, knee, neck, T/L spine, breast; Optional phased array: Spine, pediatric, 3rd party connector, Optional SENSE Coils: Flex-S-M-L, Flex Body, Flex Cardiac,
SPECTROSCOPY Optional
SYNCHRONIZATION ECG/peripheral: Optional/yes, respiratory gating
PULSE SEQUENCES SE, Modified-SE, IR (T1, T2, PD), STIR, FLAIR, SPIR, FFE, T1-FFE, T2-FFE, Balanced FFE, TFE, Balanced TFE, Dynamic, Keyhole, 3D, Multi Chunk 3D, Multi Stack 3D, K Space Shutter, MTC, TSE, Dual IR, DRIVE, EPI, Cine, 2DMSS, DAVE, Mixed Mode; Angiography: Inflow MRA, TONE, PCA, CE MRA
IMAGING MODES Single Slice 2D , Multi Single Slice 2D, Multi Slice 2D, 3D, Multi Chunk 3D, Multi Stack 3D
TR Min. 2.9 (Omni) msec, 1.6 (Power) msec
TE Min. 1.0 (Omni) msec, 0.7 (Power) msec
SINGLE/MULTI SLICE RapidView Recon. greater than 500 @ 256 Matrix
FOV Max. 53 cm
SLICE THICKNESS 0.1 mm(Omni), 0.05 mm (Power)
DISPLAY MATRIX 128 x 128, 256 x 256,512 x 512,1024 x 1024 (64 for Bold img)
MEASURING MATRIX Variable in 1% increments
PIXEL INTENSITY Lum.: 120 cd/m2; contrast: 150:1
SPATIAL RESOLUTION Variable (op. param. depend.)
MAGNET TYPE Superconducting
BORE DIAMETER
or W x H
60 x 60 cm
MAGNET WEIGHT 2700 kg
H*W*D 240 x 188 x 157 cm
POWER REQUIREMENTS 380/400 V
COOLING SYSTEM TYPE
CRYOGEN USE 0.03 L/hr helium
FIELD STRENGTH 1.0 T
STRENGTH 23 mT/m (Omni), 30 (Power) mT/m
5-GAUSS FRINGE FIELD 2.3 m / 3.3 m
SHIMMING Passive and dynamic
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DeviceForum -
related threadsInfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.
 
Magnetic resonance imaging (MRI) is based on the magnetic resonance phenomenon, and is used for medical diagnostic imaging since ca. 1977 (see also MRI History).
The first developed MRI devices were constructed as long narrow tunnels. In the meantime the magnets became shorter and wider. In addition to this short bore magnet design, open MRI machines were created. MRI machines with open design have commonly either horizontal or vertical opposite installed magnets and obtain more space and air around the patient during the MRI test.
The basic hardware components of all MRI systems are the magnet, producing a stable and very intense magnetic field, the gradient coils, creating a variable field and radio frequency (RF) coils which are used to transmit energy and to encode spatial positioning. A computer controls the MRI scanning operation and processes the information.
The range of used field strengths for medical imaging is from 0.15 to 3 T. The open MRI magnets have usually field strength in the range 0.2 Tesla to 0.35 Tesla. The higher field MRI devices are commonly solenoid with short bore superconducting magnets, which provide homogeneous fields of high stability.
There are this different types of magnets:
Resistive Magnet
Permanent Magnet
Superconducting Magnet
The majority of superconductive magnets are based on niobium-titanium (NbTi) alloys, which are very reliable and require extremely uniform fields and extreme stability over time, but require a liquid helium cryogenic system to keep the conductors at approximately 4.2 Kelvin (-268.8 Celsius). To maintain this temperature the magnet is enclosed and cooled by a cryogen containing liquid helium (sometimes also nitrogen).
The gradient coils are required to produce a linear variation in field along one direction, and to have high efficiency, low inductance and low resistance, in order to minimize the current requirements and heat deposition. A Maxwell coil usually produces linear variation in field along the z-axis; in the other two axes it is best done using a saddle coil, such as the Golay coil.
The radio frequency coils used to excite the nuclei fall into two main categories; surface coils and volume coils. The essential element for spatial encoding, the gradient coil sub-system of the MRI scanner is responsible for the encoding of specialized contrast such as flow information, diffusion information, and modulation of magnetization for spatial tagging.
An analog to digital converter turns the nuclear magnetic resonance signal to a digital signal. The digital signal is then sent to an image processor for Fourier transformation and the image of the MRI scan is displayed on a monitor.

For Ultrasound Imaging (USI) see Ultrasound Machine at US-TIP.com.

See also the related poll results: 'In 2010 your scanner will probably work with a field strength of' and 'Most outages of your scanning system are caused by failure of'
Radiology-tip.comGamma Camera,  Linear Accelerator
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Radiology-tip.comUltrasound Machine,  Real-Time Scanner
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Further Reading:
  News & More:
Kyoto University and Canon reduce cost of MRI scanner to one tenth
Monday, 11 January 2016   by www.electronicsweekly.com    
A transportable MRI machine to speed up the diagnosis and treatment of stroke patients
Wednesday, 22 April 2015   by medicalxpress.com    
Portable 'battlefield MRI' comes out of the lab
Thursday, 30 April 2015   by physicsworld.com    
Chemists develop MRI technique for peeking inside battery-like devices
Friday, 1 August 2014   by www.eurekalert.org    
New devices doubles down to detect and map brain signals
Monday, 23 July 2012   by scienceblog.com    
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In 2075 (after about 100 years of ...) the MRI scan will be :
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