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bSSFP artifacts at rectum
prostate interface
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bSSFP artifact
• Balanced Steady State Free Precession
also known as:
– bTFE, bFFE (Philips)
– trueFISP (Siemens)
– FIESTA (GE)
• Steady state depends on T
1
and T
2
• Spins from many excitations create a steady
state of precessing spins
• B0 distortions (susceptibility) result in spins
that are off-resonance and don’t see the RF
pulses. Thus they don’t produce a signal