A New Time Shifted Fast Spin Echo Thermometry Sequence

MR guided Focused Ultrasound (MRgFUS) is used to treat noninvasively many brain disorders. Currently gradient echo (GRE) is used for thermometry imaging using the PRF shift. In this work we present a new thermometry sequence which is based on Fast Spin Echo. It is shown that this sequence is not sensitive to field inhomogeneity, provides higher temperature signal to noise ratio, and acquire 3 slices simultaneously during heating.

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