Mars protocol mri siemens

1. What is Mars protocol for MRI?
2. How do you reduce metallic artifacts in an MRI?
3. How do you reduce metallic susceptibility artifacts?
4. What is Mavric MRI?

What is Mars protocol for MRI?

A metal artifact reduction sequence (MARS) is intended to reduce the size and intensity of susceptibility artifacts resulting from magnetic field distortion.

How do you reduce metallic artifacts in an MRI?

Basic methods to reduce metallic artifacts include use of spin-echo or fast spin-echo sequences with long echo train lengths, short inversion time inversion-recovery (STIR) sequences for fat suppression, a high bandwidth, thin section selection, and an increased matrix.

How do you reduce metallic susceptibility artifacts?

Susceptibility artifacts may be changed in shape, but not eliminated, by altering the directions of frequency- and phase-encoding. They can be minimized by using shorter TE values (less time for dephasing) and by using fast spin-echo instead of gradient-echo sequences.

What is Mavric MRI?

MAVRIC SL is an acquisition and reconstruction technique for imaging soft tissue and bone near MR Conditional metallic devices. MAVRIC SL helps reduce artifacts caused by presence of metal in both in-plane and through-plane dimensions compared to conventional MR techniques.