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Archive for tag: magnetic resonance imaging

The Future of Multimodal Imaging – Hybrid MEG-MRI

17 April, 2013 | MRI

Current developments in multimodal imaging are stemming from the merging of two imaging devices into one, thereby combining the benefits that each device has to offer.   One such example is a hybrid created from the combination of an Magnetoencephalography (MEG)  with Magnetic Resonance Imaging (MRI). The results are showing that sometimes one and one are [...]

Introducing MRI Parallel Imaging

23 June, 2011 | MRI

How is MRI Parallel Imaging Used? MRI parallel imaging utilizes the multiple elements of phased array coil system. Each element of the coil system is associated with a dedicated radio frequency channel (a special single-channel radio receiver) whose output is processed and combined with the outputs of the other channels (signals acquired by the other [...]

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 [...]

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 [...]