Abstract #4299

Correction of Phase Offset Induced From Eddy Current in MR Phase Contrast Cine Flow Measurement of Cerebrospinal Fluid in the Cervical Spine

Kwan-Jin Jung¹, Andrea Willhite², and Susan Harkema²

¹Radiology, University of Louisville, Louisville, KY, United States, ²Neurosurgery, University of Louisville, Louisville, KY, United States

The phase offset in the phase contrast MR flow imaging was corrected using an image-based method in order to account for the spatially inhomogeneous and subject-dependent phase offset. The phase shift on the flow region was estimated iteratively from the phase shift of the stationary tissue using the low spatial distribution of the phase offset. This phase offset correction method with an automated segmentation and iterative estimation of the phase offset allowed us to study the cerebrospinal fluid flow in the spinal subarachnoid space of ten healthy and ten spinal cord injury participants reliably without elaborate manual effort.

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