What is gradient echo MRI used for?

The gradient echo is generated by the frequency-encode gradient, except that it is used twice in succession, and in opposite directions: it is used in reverse at first to enforce transverse dephasing of spinning protons and then right after, it is used as a readout gradient (like in spin-echo MRI) to re-align the …

What is Trufi MRI?

TRUFI: true fast imaging with steady-state free precession.

What is Fiesta MRI?

The FIESTA sequence is a high-resolution T2-weighted MRI sequence that provides outstanding image contrast and high signal-to noise-ratio.

What is a haste MRI?

HASTE (Half fourier Single-shot Turbo spin-Echo) is a single-section T2-weighted sequence that acquires images in less than 1 second. Images are breathing independent and possess a variety of other features useful for imaging the abdomen. The design of this technique is described.

What is CISS sequence?

Three-dimensional (3D) constructive interference in steady state (CISS) is a gradient-echo MRI sequence that is used to investigate a wide range of pathologies when routine MRI sequences do not provide the desired anatomic information.

How can I tell what sequence my MRI is?

The best way to tell the two apart is to look at the grey-white matter. T1 sequences will have grey matter being darker than white matter. T2 weighted sequences, whether fluid attenuated or not, will have white matter being darker than grey matter.

Is Fiesta T1 or T2?

FIESTA-C/CISS is currently the sequence of choice for CSF-cisternography for visualizing cranial nerves at the skull base. When used in the 3D mode, it provides high signal from CSF based on T2/T1 contrast and high spatial resolution.

What is Blade MRI?

Additional Information. BLADE is a motion insensitive, multi-shot Turbo Spin Echo (TSE) sequence. Inter-shot motion correction is applied for reducing in-plane motion artifacts. This technique continuously acquires low resolution images during motion, then measures and corrects for this motion.

What is kspace data?

The k-space represents the spatial frequency information in two or three dimensions of an object. The k-space is defined by the space covered by the phase and frequency encoding data. The relationship between k-space data and image data is the Fourier transformation.