steady-state free precession

steady-state free precession

An MRI term for any field echo or gradient echo sequence in which a non-zero steady state develops for both transverse and longitudinal components of magnetisation. If the radio frequency pulses are close enough the MR signal never completely decays, meaning that spins in the transverse (x-z) plane never completely dephase.
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proposed the application of balanced steady-state free precession (bSSP) for the significantly higher frequency for anatomy based resonance as compared to gradient echo (GE), which scarifies the certain amount of sensitivity and CNR as a result of spoiling of transverse magnetisation.
Improving contrast to noise ratio of resonance frequency contrast images (phase images) using balanced steady-state free precession.
In initial attempts to visualize biliary tree, steady-state free precession imaging was used with high contrast over several breath holds.
However, the inability of fast imaging with steady-state precession sequences to provide the reliable CSF flow quantification through the third ventricle floor fenestration, opens the space for the complementary use of phase-contrast MRI techniques, especially the incoherent gradient echo phase-contrast sequences (PC-GRE) or phase-contrast sequences with balanced steady-state free precession (PC-bSSFP) [24-26],
18] Haacke EM, Wielopolski PA, Tkach JA, Modic MT Steady-state free precession imaging in the presence of motion: application for improved visualization of the cerebrospinal fluid.
Fetal MRI of the cardiovascular system: Role of steady-state free precession sequences for the evaluation of normal and pathological appearances.
With its powerful gradient technology and open design, the Ultra offers clinical capabilities comparable to a high-field MRI system to offer procedures such as True Steady-State Free Precession (SSFP) and Super Fast Advanced Spin Echo (FASE), while accommodating both large and claustrophobic patients.
New high-field applications now available on the mid-field OPART include Steady-State Free Precession (SSFP) and T2 Plus.