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I have been asked privately which is the best to capture Cranio Cervical Instability – Cine MRI or Upright MRI and these are my comments:
Cine MRI is to look at the Cerebro Spinal Fluid (CSF) flow, it’s usually taken laying down (though for some, upright Cine MRI would be interesting !) Anyway, when laying down, if you have cranio-cervical instability (CCI), it will push the head forwards of the neck, compressing the hind brain (if you have Cerebellar Ectopia) against the brain-stem, thus constricting CSF flow. Cerebellar Ectopia on it’s own can restrict CSF flow. However, CCI on it’s own, without the Cerebellar Ectopia, is unlikely to restrict CSF flow.
Upright MRI: There is a document (under handouts) on the website that you may wish to give to the radiologist prior to your upright MRI, should you choose to have one (Arrgghh but I can’t find this! Dr Diana can you help locate it? – it’s the document to do with Chiari and EDS/Hypermobility)
Regards
Barbara
(UK)