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MRI pulse sequences

An MRI pulse sequence is a programmed set of changing magnetic gradients. Different pulse sequences allow the radiologist to image the same tissue in various ways, and combinations of sequences reveal important diagnostic information about the tissue in question. 

A pulse sequence is generally defined by multiple parameters, including:

Different combinations of these parameters affect tissue contrast and spatial resolution

Multiple sequences are usually needed to adequately evaluate a tissue. The radiologist tailors the pulse sequences to try to best answer the clinical question posed by referring physician.

Pulse sequences can be broadly grouped as follows:

See also

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MRI physics

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