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.