Integrated parallel reception, excitation, and shimming (iPRES).

ABSTRACT:

Purpose

To develop a new concept for a hardware platform that enables integrated parallel reception, excitation, and shimming.

Theory

This concept uses a single coil array rather than separate arrays for parallel excitation/reception and B0 shimming. It relies on a novel design that allows a radiofrequency current (for excitation/reception) and a direct current (for B0 shimming) to coexist independently in the same coil.

Methods

Proof-of-concept B0 shimming experiments were performed with a two-coil array in a phantom, whereas B0 shimming simulations were performed with a 48-coil array in the human brain.

Results

Our experiments show that individually optimized direct currents applied in each coil can reduce the B0 root-mean-square error by 62-81% and minimize

SUBMITTER: Han H 

PROVIDER: S-EPMC3800110 | biostudies-literature | 2013 Jul

REPOSITORIES: biostudies-literature