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The variable flip angle method derives T1 maps from radiofrequency‐spoiled gradient‐echo data sets, acquired with different flip angles α. Because the method assumes validity of the Ernst equation, insufficient spoiling… Click to show full abstract
The variable flip angle method derives T1 maps from radiofrequency‐spoiled gradient‐echo data sets, acquired with different flip angles α. Because the method assumes validity of the Ernst equation, insufficient spoiling of transverse magnetization yields errors in T1 estimation, depending on the chosen radiofrequency‐spoiling phase increment (Δϕ). This paper presents a versatile correction method that uses modified flip angles α' to restore the validity of the Ernst equation.
Keywords:
flip angle;
variable flip;
spoiling transverse;
insufficient spoiling;
transverse magnetization
Journal Title: Magnetic Resonance in Medicine
Year Published: 2018
Link to full text (if available)
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Journal Title: Magnetic Resonance in Medicine
Year Published: 2018
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!