3T MRI: ready for prime time? The benefits of 3-Tesla MRI have been established, but its physics mandate protocol revisions.(Magnetic resonance imaging)

Medical Imaging | August 1, 2006| | Copyright

MRI at 3T has been available for about 15 years, but it was primarily a research tool. Now, the major vendors are selling systems intended for routine clinical use. Do you need one? And if you purchase one, what can you expect?

What Makes 3T Better than 1.5T?

The chief appeal of 3T is the higher signal-to-noise ratio (SNR), which can be traded for greater speed, higher spatial resolution, or both. (1) (For physical reasons, the SNR is not quite double that of 1.5T. (1)) The stronger gradient also permits thinner slices and increases the conspicuity of ...

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