Baudouin
Denis de Senneville1, Sbastien Roujol1,2, Chrit Moonen1,
Mario Ries1
1Laboratory for Molecular and
Functional Imaging: from Physiology to Therapy, CNRS/ University
Reliable
temperature and thermal-dose measurements using PRF based MR-thermometry for
MR-guided ablation therapy on abdominal organs require a robust correction of
artefacts induced by the target displacement through an inhomogeneous and
time-variant magnetic field. The presented study combines the two most
promising candidates for this role, the multi-baseline and the referenceless
method, with a real-time in-plane motion correction which permits
thermal-dose calculations and evaluates the practical aspects of both methods
in an ex-vivo RF-ablation and an in-vivo high-intensity focused ultrasound
ablation of a porcine kidney.
Keywords