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At the time the article was created Matt A. Morgan had no recorded disclosures.View Matt A. Morgan's current disclosures
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When the TR is very short, the best flip angle to maximize signal can be quite small. Choosing the Ernst angle in this setting can increase signal by several fold. However, it should be remembered that depending on the situation, we may choose a non optimal flip angle to sacrifice maximal signal for better T1 contrast.
In T2-weighted sequences, a non optimal flip angle may be deliberately chosen to decrease T1 signal.
Adjusting the TR and flip angle toward or away from the Ernst angle is often a concern in MR angiography.
History and etymology
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