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Abstract #4508

Coil-induced phase removal during gradient delay estimation

Chao Wang1, Gaojie Zhu1, Hai Luo1, Bei Lv1, Xiang Zhou1, and Ziyue Wu1

1Alltech medical system, Chengdu, China

Gradient delay can lead to severe artifacts in radial imaging. While several methods have been proposed to correct the linear phase caused by gradient delay, no publications have mentioned the impact of coil sensitivity phase during the estimation of gradient delay to our knowledge. This work reports the impact of this factor and presents a simple method to remove the coil-induced phase during the gradient delay estimation. Both phantom and in-vivo test results are provided to demonstrate the effectiveness of this method.

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