Ultrashort TE Imaging with Rescaled Digital Subtraction (UTE RDS)

Jiang Du¹, Christine B. Chung¹, Graeme M. Bydder¹

Imaging of short T2 tissues often requires not only a short TE but efficient suppression of the signal from surrounding long T2 species which may have much higher MR signals. Dual echo acquisition and subtraction has been used to improve short T2 contrast. This approach is simple and effective in many cases. However, the short T2 contrast may be significantly reduced with high resolution imaging due to increased echo spacing and susceptibility effect. Here we present a technique called UTE with Rescaled Digital Subtraction (UTE-RDS) which provide high positive contrast for multi-slice 2D imaging of short T2 species.