Abstract #3689
Feasibility of using Magnetic Resonance-guided High Intensity Focused Ultrasound (MRgHIFU) to perform ablative and hyperthermia interventions in the neck area: A preliminary in vivo study.
Samuel Pichardo 1,2 and Kullervo Hynynen 1
1
Physical Sciences, Sunnybrook Research
Institute, Toronto, ON, Canada,
2
Electrical
Engineering, Physics, Lakehead University, Thunder Bay,
ON, Canada
This study presents preliminary in vivo results showing
the feasibility of using Magnetic Resonance-guided High
Intensity Focused Ultrasound (MRgHIFU) to perform
ablative and hyperthermia interventions in the neck
area. Six (6) experiments were performed for each
intervention modality using an acute pig model. For
hyperthermia, an automatic algorithm of the energy
delivery was compared to an user-controlled approach for
a 30-min delivery. The user-controlled approach was more
successful to deliver a more controlled treatment. For
the lesion experiments, a relatively high power (140W at
1.2 MHz) was required to induce 8-mm lesions in
diameter.
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