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Abstract #3598

Improved Thermometry Based on a Fast Spin Echo Sequence

Yuval Zur1

1GE Healthcare, Haifa, Israel

A time shifted Fast Spin Echo (FSE) thermometry sequence which is insensitive to B0 inhomogeneity is used in conjunction with restricted FOV module and parallel imaging to reduce scan time and increase the number of slices. Up to 5 slices are acquired in 3 sec. This sequence works well on a clinical Focused Ultrasound brain system. The temperature signal to noise ratio (TSNR) of this FSE sequence is approximately 2 times higher than the conventional Gradient Echo (GRE) sequence used today. 3 to 5 slices are acquired in 3 sec, rather than 1 slice with GRE.

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