New & Used MRI

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• Parts (5,721)

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Item Details

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Item Price (USD)

Year manufactured

150023874

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Device: MRI
Manufacturer: Siemens
Model: MAGNETOM Concerto

Location: Argentina, Buenos Aires

Negotiable

-

383163247

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Device: MRI
Manufacturer: Hitachi
Model: AIRIS I

Location: United States, California

70000 70,000

1998

585153338

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Device: MRI
Manufacturer: Siemens
Model: MAGNETOM Symphony

Location: Belgium, Antwerp

582775.28185132 582,775

2007

484632938

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Device: MRI
Manufacturer: Toshiba
Model: 1.5T

Location: United States, Florida

86000 86,000

2002

583139247

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Device: MRI
Manufacturer: Siemens
Model: MAGNETOM Open Viva

Location: United States, Florida

42000 42,000

1998

838400013

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Device: MRI
Manufacturer: Picker
Model: Outlook

Location: United States, Florida

29000 29,000

1999

173242166

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Device: MRI
Manufacturer: Siemens
Model: MAGNETOM Sonata

Location: Belgium, Antwerp

200000 200,000

2004

660413605

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Device: MRI
Manufacturer: Toshiba
Model: OPART

Location: United States, Florida

50000 50,000

2000

850829214

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Device: MRI
Manufacturer: Siemens
Model: MAGNETOM Symphony

Location: Belgium, Antwerp

50000 50,000

1999

360698205

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Device: MRI
Manufacturer: GE Healthcare
Model: EXCITE II 1.5T

Location: Belgium, Antwerp

350000 350,000

2008

128622932

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Device: MRI
Manufacturer: GE Healthcare
Model: Signa EXCITE HD

Location: United States, New York

184000 184,000

1997

772801406

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Device: MRI
Manufacturer: Hitachi
Model: AIRIS II

Location: India, Maharashtra

100000 100,000

2000

527665212

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Device: MRI
Manufacturer: Siemens
Model: MAGNETOM Open Viva

Location: Argentina, Buenos Aires

160000 160,000

1999

816388551

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Device: MRI
Manufacturer: Siemens
Model: MAGNETOM Open Viva

Location: Argentina, Buenos Aires

260000 260,000

-

650023854

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Device: MRI
Manufacturer: Siemens
Model: MAGNETOM Open

Location: Argentina, Buenos Aires

Negotiable

-

MRI may also be referred to as :

Scanning System, Magnetic Resonance Imaging | Scanner, Nuclear Magnetic Resonance (NMR) | Open MRI Unit | Nuclear Magnetic Resonance Imaging System | Nuclear Magnetic Resonance (NMR) Unit | NMR | MRI Unit | MRI System | Magnetic Resonance Imaging System | Magnetic Resonance Imaging (MRI) Unit | Computerized MRI Tomograph | Accessible MRI Unit

Tips for buying MRI

1. When purchasing an MRI system, facilities should consider these important factors: the magnet, gradient system, computer.
2. As for the MRI magnet, it should produce a highly homogeneous magnetic field covering as wide a field of view as possible and provide as much patient space as possible.
3. The MRI system image resolution is higher when the gradient system is faster, but than the field of view is smaller.
4. Keeping up with the magnet, so that images are instantly available while the scan progresses, is the computer system's task in a Magnetic Resonance Imaging system.
5. Facilities should also consider the site requirements, which are specific to each institution. In this area, three issues should be examined: the extent of the magnetic field, the area occupied by the magnet, and the weight of the magnet.
6. When selecting the MRI site, the two most important planning considerations are the fringe field and the need for a site free from ambient RF electrical noise. A permanent magnet has a minimal fringe field, but needs careful preconstruction planning because of its tremendous weight.
7. To contain the magnetic fringe field of resistive and superconducting electromagnet systems, shielding can be used. The fringe field could cause problems at some sites without shielding.
8. To contain the fringe field, two approaches are used for MRI units: active and passive shielding. Active shielding is a design feature of the magnet, while the passive shielding involves the use of steel around the magnet.
9. Generally, the size of the MRI unit's controlled-access area increases as the operational field strength increases, for the fringe fields created by superconducting and resistive magnets. The recommended general-public access limit is 5 G. The distance to the 5 G line ranges from approximately 9 meters for a 0.5 T magnet to 13 meters for a 1.5 T magnet. For a 3.0 T magnet, the 5 G line is about one meter further from the isocenter than it is for a 1.5 T magnet, and therefore larger safety boundaries are required.
10. With MRI active magnet shielding, the distance to the 5 G line can be drastically reduced to less than 4 meters for a shielded 1.5 T magnet and less than 3 meters for a shielded 0.5 T magnet.
11. Fringe fields are 3-D; so for higher field strengths, areas on the floors above and below the imaging facility may also need controlled access and/or shielding.
12. Careful site selection is required for MRI units. The operation of gamma cameras, CRT displays, electroencephalogram and electrocardiogram monitors, and image intensifiers - are all affected by the magnetic field; ferromagnetic material in the surrounding area affects the homogeneity of the static magnetic field.
13. MRI system technicians can partially compensate for the effects of large stationary masses on field uniformity by placing corresponding masses of ferromagnetic material in a symmetric position in the magnet area. A careful site selection for your MRI system can eliminate moving ferromagnetic objects such as elevators, automobiles, or forklifts.
14. To address the problems associated with the fringe field, active shielding can be used, as well as close-fitting steel shields integral to the magnet, or steel shielding in the walls around the magnet. If MRI system users wish to install large steel sheets of magnetic shielding, they should keep in mind that these are expensive, and require innovative construction techniques because of the weight involved.
15. Facilities should be sure to include all these extra precautions in early design considerations before the purchase of MRI systems, because they raise the cost of construction. Implementation after installation may be even more costly. Actively shielded magnets have significantly reduced fringe fields and generally do not require steel shielding.
16. External ambient RF signals can degrade MRI image quality below diagnostically acceptable levels; so even in the most complex MRI system, the magnet assembly must have some type of RF shielding. These shield assemblies usually consist of a complete room of copper or aluminum sheets bonded to a composite plywood support. Physical and visual access to the room is provided by special door assemblies and window coverings shielded with copper screening.
17. MRI specialists should install, fine-tune, and maintain the equipment since MRI technology is especially complex and sensitive. Experts should train physicians and technologists and answer their questions.
18. Facilities should choose a supplier whose local MRI service and training resources are extensive and reliable. The availability of such resources should be guaranteed in writing within any contract between the supplier and the buyer.
19. To facilitate future additions to the network, all newly purchased MRI equipment must be compatible with DICOM 3.0. DICOM conformance statements should be provided by the suppliers and should explain in detail what information objects, service classes, and data encoding are supported by their systems. All statements should share the same format and vocabulary to facilitate Magnetic Resonance Imaging system comparisons among suppliers.