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Archive for category: MRI

Understanding MRI Scanner Receivers


19 June, 2011 | MRI

How Advanced Technologies Improve MRI Imaging Multichannel radiofrequency and parallel imaging technologies are hardware and software implementations, respectively, aimed at improving the coverage, signal resolution and speed of MRI examinations. With multichannel RF technology, the MRI signal used to form an image is collected by an array of separate detectors, or coil elements. Each element [...]

Important Considerations to Review Before Purchasing an MRI System


10 June, 2011 | MRI

Before purchasing an MRI system, it is important to take into consideration the following main technical points, in order to make the best decisions possible for your medical facility: The MRI system should be FDA-approved The MRI system should comply with the IEC 60601-2-23 standard The MRI system should comply with all Dicom 3.0 mri [...]

The Intricacies of MRI Magnets


26 May, 2011 | MRI

The MRI magnet is the largest and the most expensive component of the Magnetic Resonance Imaging System. The Three Main MRI Magnet Types In general, there are three main types of magnets used in MRI systems: resistive, permanent and superconducting. Resistive MRI magnets are wound around a cylinder and create a magnetic field when electricity [...]

The Intricate World of MRI Parts


3 March, 2011 | MRI

Magnetic Resonance Imaging, most commonly known as MRI, is a medical device system made up of an intricate set of primary performing MRI parts which use magnetic field and the natural resonance of atoms in the body to obtain images of human tissues. The first functioning MRI device was launched in 1945 and the equipment [...]

Diffusion MRI


13 December, 2010 | MRI

Diffusion MRI, the commonly used magnetic resonance imaging method,  produces in vivo images of biological tissues weighted with local microstructural characteristics of water diffusion. In diffusion-weighted imaging, each image voxel has an image intensity that reflects a single best measurement of the rate of water diffusion at that location. This measurement is more sensitive to [...]

Breast Screening with the Aid of MRI


19 August, 2010 | MRI

In the detection and assessment of breast cancer by MRI, gadolinium contrast agent is used to highlight lesions and their extent. Subtraction and fat suppression techniques are used to minimize loss of visibility. The screening of the general population by MRI is not practical because of its high cost and limited availability. Although MRI screening [...]