RT Journal Article SR Electronic T1 Idiopathic Spinal Cord Herniation: Value of MR Phase-Contrast Imaging JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 935 OP 939 VO 20 IS 5 A1 Pierre Brugières A1 Denis Malapert A1 Homa Adle-Biassette A1 Françoise Fuerxer A1 Michel Djindjian A1 André Gaston YR 1999 UL http://www.ajnr.org/content/20/5/935.abstract AB Summary: We report two patients with an idiopathic transdural spinal cord herniation at the thoracic level. Phase-contrast MR imaging was helpful in showing an absence of CSF flow ventral to the herniated cord and a normal CSF flow pattern dorsal to the cord, which excluded a compressive posterior arachnoid cyst.