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Abstract #0841

Accelerated MRI Thermometry with Multi-Echo Multi-Slice GRE

Yuval Zur1, Itzhak Pinhas1, and Boaz Shapira1
1Insightec Ltd, Haifa, Israel


An accelerated multi echo GRE sequence is presented for Focused Ultrasound Thermometry. An under sampled k space dataset is acquired during heating, to reduce scan time and enable multi-slice acquisition. Prior to heating, a fully sampled baseline image is acquired. Based on the baseline image, an iterative reconstruction algorithm fills-in the missing lines of each hot image. Accelerations of up to x15 with 16 echoes enable acquisition of 5 – 10 slices in 3.5 sec. Real-time reconstruction of 800 msec/5 slices was implemented on a FUS-MRI machine.

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