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Abstract #4407

Temperature Error Reduction During MRI Guided HIFU Treatment

Xiaodong ZHOU1,2, Qiang HE1,2, Qiang ZHANG2, Cheng NI1,2

1College of life science and technology, Tongji University, Shang hai, China; 2Siemens Mindit Magnetic Resonance Ltd., Shenzhen, Guangdong, China

We propose a method to remove ultrasound applicator susceptibility temperature error based on PRF-shift phase difference method during MRgHIFU. With this method reference image is not necessary to acquire repetitively when applicator moves position. Therefore tissue cooling down time between reference imaging can be saved. MRgHIFU treatment is simplified and total treatment time is much reduced.