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Inversion Recovery Echo Planar ImagingInfoSheet: - Sequences - 
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Contiguous Slice Multi Echo MultiplanarInfoSheet: - Sequences - 
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(CSMEMP) MR imaging pulse sequence in which signals for multiple contiguous slices at multiple echoes are collected.
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Rapid Acquisition with Refocused EchoesInfoSheet: - Sequences - 
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(RARE) If the image lines from multiple echoes are used for the same image, this results in the RARE pulse sequence. The sequence is similar to fast spin echo.

See Fast Spin Echo.
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• View the DATABASE results for 'Rapid Acquisition with Refocused Echoes' (2).Open this link in a new window

 
Further Reading:
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RARE
Monday, 3 December 2012   by www2.warwick.ac.uk    
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Contrast Enhanced Gradient Echo SequenceInfoSheet: - Sequences - 
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Contrast enhanced GRE sequences provide T2 contrast but have a relatively poor SNR. Repetitive RF pulses with small flip angles together with appropriate gradient profiles lead to the superposition of two resonance signals.
The first signal is due to the free induction decay FID observed after the first and all ensuing RF excitations.
The second is a resonance signal obtained as a result of a spin echo generated by the second and all addicted RF-pulses.
Hence it is absent after the first excitation, it is a result of the free induction decay of the second to last RF-excitation and has a TE, which is almost 2TR. For this echo to occur the gradients have to be completely symmetrical relative to the half time between two RF-pulses, a condition that makes it difficult to integrate this pulse sequence into a multiple slice imaging technique. The second signal not only contains echo contributions from free induction decay, but obviously weakened by T2-decay. Since the echo is generated by a RF-pulse, it is truly T2 rather than T2* weighted. Correspondingly it is also less sensitive to susceptibility changes and field inhomogeneities.
Companies use different acronyms to describe certain techniques.
Different terms (see also acronyms) for these gradient echo pulse sequences:
CE-FAST Contrast Enhanced Fourier Acquired Steady State,
CE-FFE Contrast Enhanced Fast Field Echo,
CE-GRE Contrast Enhanced Gradient-Echo,
DE-FGR Driven Equilibrium FGR,
FADE FASE Acquisition Double Echo,
PSIF Reverse Fast Imaging with Steady State Precession,
SSFP Steady State Free Precession,
T2 FFE Contrast Enhanced Fast Field Echo (T2 weighted).

In this context, 'contrast enhanced' refers to the pulse sequence, it does not mean enhancement with a contrast agent.
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• View the DATABASE results for 'Contrast Enhanced Gradient Echo Sequence' (4).Open this link in a new window

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Small Tip Angle Gradient Echo T1 WeightedInfoSheet: - Sequences - 
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