Mri In Spinal Dysraphism

Abstract

Spinal dysraphism is a broad term given to a group of anomalies where there is malformation in the dorsum of embryo.<br /> Spinal dysraphism can be broadly divided to three different pathological entities:<br /> 1. Open Spinal dysraphism<br /> 2. Closed Spinal dysraphism<br /> 3. Complex Spinal dysraphism<br /> MRI is an excellent imaging modality for visualizing the spinal cord of patient of all ages and alsocomplex Spinal dysraphism.<br /> MRI is an accurate screening modality in the initial diagnosis of occult Spinal dysraphism, but MRI was not useful in postoperative evaluation of lipomyelomeningocele & tethered cord because the caudal, posterior displacement of the conus was unchanged in all studies.<br /> False + / - :<br /> Normal nerve roots of the cauda equine may simulate low conus on sagittal MRIs.<br /> MRI accurately depicts the extent of syringohydromyelia , which may clinically mimic a tethered cord .<br /> Despite surgical repair , postoperative ascent of the conus medullaris is seldom seen on subsequent MRIs.<br />