Abstract

Imaging of short and ultrashort T2 and T2 * tissues using clinical MRI systems

Author(s): Graeme M Bydder

There are now a variety of new techniques available to detect signal from tissues with short or ultrashort T2s and T2*s. There are also many methods of developing image contrast between tissues and fluids in the short T2 or T2* range, which can provide visualization of anatomy that has not previously been seen. Particular methods have been developed to target susceptibility effects, and allow accurate quantitation by compensating for the anatomical distortion produced by these effects. Specific methods have been developed to image the effects of magnetic iron oxide particles with positive contrast and to correct for the loss of signal and image distortion near to metal caused by gross susceptibility effects. These methods are likely to provide interesting options and increase the range of applications of MRI.