Sbastien
Roujol1,2, Mario Ries1, Bruno Quesson1,
Chrit Moonen1, Baudouin Denis de Senneville1
1laboratory for molecular and
functional imaging: from physiology to therapy, CNRS/ University Bordeaux 2,
Bordeaux, Aquitaine, France; 2LaBRI, University Bordeaux 1,
Talence, Aquitaine, France
A
computationally efficient pipeline for 2D motion compensated PRF-thermometry
and thermal dose measurements on moving abdominal organs is presented. The
method is designed to address both, inter-scan and intra-scan artifacts by
applying high frame-rate MRI coupled with a real-time image processing. The
proposed MR-thermometry method was evaluated in both liver and kidney of 11
healthy volunteers and achieved a precision of less than 2 C in 70 % of the
pixels. The ability to perform MR-Thermometry and Dosimetry in-vivo was
demonstrated on one HIFU-heating experiment on a porcine kidney.