Xi Peng1, Daniel Borup2, and James Pipe1
1Mayo Clinic, Rochester, MN, United States, 2Philips Healthcare, Rochester, MN, United States
1Mayo Clinic, Rochester, MN, United States, 2Philips Healthcare, Rochester, MN, United States
We accelerated a previous spiral-TSE method by a factor of 2
using a
split spiral in-out acquisition strategy with reversed arm orderings to
intrinsically compensate for the T2-decay induced artifacts and produce low-SAR and improved
contrast for fast T2-weighted imaging in the brain.
Figure 3. Comparison between Cartesian TSE and Spiral TSE images at five representative slices. The total scan time were 4 min 30 sec, 3 min 48 sec and 1 min 54 sec respectively.
Figure 1. a) The spiral in-out trajectory used in TSE sequence; b) Illustration of reversed arm ordering for T2-decay compensation.
