3 ms·
No the resolution can be set at will, down from microns to centimeters (depending on the gradient system and sequence). But! The amount of signal per voxel depe
by SimplyUnknown 6y ago
No the resolution can be set at will, down from microns to centimeters (depending on the gradient system and sequence). But! The amount of signal per voxel depends on the magnetic field strength. So with tiny voxels there is hardly any signal at low field strength so you won't see anything and you will measure mostly noise.
- lostlogin 6y agoYou can get past this with more averages. So the real issue is that it is very slow to get high resolution at low field strengths. The flip side of this is that high field strength scanners get a lot more image artefacts than low strength systems.