Woo-Suk Chung1, Tae-Sub Chung2, Sang Hyun Suh2, Chul Hwan Park2
1Diagnostic Radiology, The Armed Forces Nonsan Hospital, Nonsan-si, Chungcheongnam-do, Korea; 2Diagnostic Radiology and Research Institute of Radiological Science, Yonsei University College of Medicine, Yongdong Severance Hospital, Seoul, Korea
Spatial modulation of magnetization (SPAMM) technique can be used in the evaluation for any kind of continuous moving object including delicate flow of CSF in the spinal canal. In idiopathic spinal cord herniation, which results from dural defect of unknown origin, CSF flow is disturbed due to a focal anterior kink of spinal cord. SPAMM technique is helpful in showing a CSF flow separation due to herniated spinal cord. This characteristic CSF flow is distinguished from CSF flow of spinal arachnoid cyst.