Absolute temperature imaging using intermolecular multiple quantum MRI.

ABSTRACT:

Purpose

A review of MRI temperature imaging methods based on intermolecular multiple quantum coherences (iMQCs) is presented. Temperature imaging based on iMQCs can provide absolute temperature maps that circumvent the artefacts that other proton frequency shift techniques suffer from such as distortions to the detected temperature due to susceptibility changes and magnetic field inhomogeneities. Thermometry based on iMQCs is promising in high-fat tissues such as the breast, since it relies on the fat signal as an internal reference. This review covers the theoretical background of iMQCs, and the necessary adaptations for temperature imaging using iMQCs.

Materials and methods

Data is presented from several papers on iMQC temperature imaging. These studies were done at 7T in

SUBMITTER: Jenista ER 

PROVIDER: S-EPMC3108856 | biostudies-literature | 2010

REPOSITORIES: biostudies-literature