Wajiha Bano1,2, Will Holmes1,2, Mohammad Golbabaee3, Alison Tree1,2, Uwe Oelfke1,2, and Andreas Wetscherek1,2
1Joint Department of Physics, The Institute of Cancer Research, London, United Kingdom, 2The Royal Marsden NHS Foundation Trust, London, United Kingdom, 3Computer Science Department, The University of Bath, Bath, United Kingdom
1Joint Department of Physics, The Institute of Cancer Research, London, United Kingdom, 2The Royal Marsden NHS Foundation Trust, London, United Kingdom, 3Computer Science Department, The University of Bath, Bath, United Kingdom
The joint gradient delay correction and T2* mapping approach outperforms
the existing trajectory auto correction method. This will facilitate
integration of T2* mapping for hypoxia imaging in an MR-linac treatment work
flow.
Figure 2: T2* maps obtained from fully sampled
numerical phantom with the noise level of 0.1 for gradient delays [1 -1] (top) and
[1 2] (bottom).
Figure
4: T2* maps (Top) and T2*-weighted images (TE=5 ms) reconstructed from the
in-vivo dataset without correction and with the sequential, respectively joint
approach. Arrows highlight a banding artifact, which disappeared on one side
after trajectory correction but partially remained on the other side.