RT Journal Article SR Electronic T1 Syringomyelia Fluid Dynamics and Cord Motion Revealed by Serendipitous Null Point Artifacts during Cine MRI JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1845 OP 1847 DO 10.3174/ajnr.A5328 VO 38 IS 9 A1 Honey, C.M. A1 Martin, K.W. A1 Heran, M.K.S. YR 2017 UL http://www.ajnr.org/content/38/9/1845.abstract AB SUMMARY: Dynamic MR imaging was used to evaluate a cervical syrinx in an adolescent boy with an associated hindbrain herniation. Null artifacts were present on one of the sequences that allowed simultaneous high-resolution visualization of syrinx fluid motion and the anatomy of the syrinx walls. A brief review of the theories of syrinx formation and propagation is provided with a comment on why the Williams “slosh” theory of syrinx progression is supported by our unique imaging.