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Abstract #3405

Mitigating artifacts from eye-motion in interleaved multi-shot DWI

Naveen Bajaj1, Jaladhar Neelavalli1, Rupesh VK1, Karthik Gopalakrishnan1, and Marc Van Cauteren2
1Philips Healthcare, Bangalore, India, 2Philips Healthcare, Tokyo, Japan

A novel approach for mitigating artifacts from localized motion of the eye, during interleaved multi-shot diffusion weighted imaging, is presented. A 2D cylindrical spatial saturation pulse is used to suppress signal from the orbit region, thereby significantly suppressing the ghost artifacts from eye movement in low b-value images. The saturation being localized to the orbit region does not influence the surrounding tissues. Placement of such a cylindrical pulse on the orbit region is relatively straight forward. In addition, the total scan time is not significantly affected by the cylindrical pulse saturation.

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