The Influence of Trapezoidal Gradient Shape on the b-factor of Hyperecho Diffusion Weighted Sequences
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چکیده
Motivation Diffusion weighted Hyperecho (HEDW) Imaging [1-3] has maintained some interest during the last years since it has the potential to offer a probe for tissue microstructure. One meaningful parameter for such a multi spin echo diffusion sequence is the knowledge of the exact effective b-factor [4] exhibited. The present work examines the effect of the common simplification to use rectangular instead of ‘real’ trapezoidal gradients in the quantitation of b for HEDW imaging.
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تاریخ انتشار 2009