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Dr Donald McRobbie

Medical physics and MRI

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Tag: GE

Gradient echo GRE MRI from picture to proton

Gradient echo signal and contrast

December 21, 2018

Gradient echo (GE, GRE, FLASH, SPGR, T1-FFE, FE) is one of the hardest elements of MRI to understand. Image signal and contrast in spoiled gradient echo depends upon three user-selected parameters: For any given tissue T1 and scanner TR there is a flip angle, the Ernst angle, that gives the maximum signal for that tissue. … More Gradient echo signal and contrast

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