Line Souris1, Najat Salameh1,
Matthias Korn1, Laurent Marsac2, Jean-Franois Aubry3,
Mathieu Pernot3, Mickael Tanter3, Luc Darrasse1
1Imagerie par Rsonance Magntique
Mdicale et MultiModalit (UMR 8081), Universit Paris-Sud, CNRS, Orsay,
France; 2SuperSonic Imagine, Aix en Provence, France; 3Institut
Langevin, ESPCI ParisTech, CNRS UMR 7587, INSERM U979, Paris, France
MRI
is a well-suited candidate for temperature monitoring during the heating with
transcranial HIFU. For this application, the body coil is usually used
because of the constraints due to the large sized of the HIFU system and the
stereotactic frame surrounding the patient head. This study showed the
improvement of image quality, and therefore temperature sensitivity, by using
a dual Flex-coil arrangement. Further improvement is possible by designing
dedicated coil arrays with a larger number of coil elements and integrated
EMI filters within the coil architecture to reject any interference of the
HIFU shots with the MR signal.