Assessing the Impact of Flip Angle and on Image Quality and reliability
of Ernst Angle optimization across Varied Conditions in Magnetic Resonance
Imaging
This study investigates the significance of flip angle, an imaging parameter,
in enhancing Magnetic Resonance image quality under various imaging conditions.
It specifically explores the extent to which the Ernst angle, an optimal flip
angle, optimizes image quality under different imaging parameters. The
investigation begins with a theoretical derivation of the Ernst angle, assuming
steady state imaging conditions. Then multiple studies that examine the effect
of flip angle on signal-to-noise ratio (SNR), a key indicator of image quality,
in different areas of the human body (blood, liver, and brain), are analysed.
The study compares the results of these studies and compares their respective
optimal flip angles with the Ernst angle. The findings reveal that flip angle
plays a crucial role in enhancing SNR and image quality. However, the Ernst
angle only optimizes SNR under steady state conditions and when using a spoiled
gradient echo (GRE) sequence. Therefore, further investigations are necessary
to determine the optimal flip angle under different imaging conditions to
optimize SNR and enhance overall image quality.Comment: 23 pages, 5152 word