18,19) These are referred to as a spin-and gradient-echo echo-planar imaging
(SAGE EPI) MRI.
Scientists from the University of Nottingham used an ultra-fast MRI scanning technique called echo-planar imaging
to image the volunteers' stomachs in real time until they looked empty.
Functional MRI data were acquired on a 3-Tesla scanner using a 2D gradient echo-planar imaging
sequence during two modified Stroop paradigms.
Advanced NMR is engaged in the development and manufacture of a high-speed Echo-Planar Imaging
retrofit for MRI systems.
Optional software modules enable the Icon to perform the latest MRI applications, such as relaxometry mapping, fast echo-planar imaging
, ultra-short echo time lung imaging or contrast agent research.
While currently available, echo-planar imaging
(EPI) techniques for DWI are not ideal for imaging the spine due to issues of susceptibility artifact and distortion.
Endpoints will include infarct growth measured by echo-planar imaging
capability for performance of MRI; gradient recalled echo (GRE), diffusion-weighted imaging (DWI) / apparent diffusion coefficient (ADC), perfusion-weighted imaging (PWI), fluid-attenuated inversion-recovery (FLAIR), and intracranial MRA.
At this performance level, the Ultra offers clinical capabilities that are comparable to those of more costly high-field systems, and allows the application of high-field imaging techniques, such as Single-shot Echo-planar Imaging
(EPI) Diffusion, True SSFP, SuperFASE and Black Blood MR Angiography.
Altaire has a powerful gradient system that delivers 22mT/m gradient amplitude and 55T/m/s slew rate, enabling Altaire to perform advanced clinical imaging techniques such as Echo-Planar Imaging
(EPI)-based Diffusion-Weighted Imaging; MR Angiography including contrast enhanced MRA (CE-MRA); ultra fast-scanning techniques such as single-shot and multi-shot EPI; and RF fat saturation.