"In one systematic review, 11% of patients with suspected spontaneous intracranial hypotension and a negative brain and spine MRI have been shown to have a CSF-venous fistula, with a NPV for MRI of 89% 10. Patients with meningeal diverticula on spine imaging or reduced optic nerve sheath diameter could have increased chances of finding CSF-venous fistula with further imaging10."
"Unlike other cases of intracranial hypotension due to CSF leaks, no accumulation of CSF outside of the dura can be identified (i.e. no spinal longitudinal epidural collection, no accumulation of radiotracer of contrast in an extra-dural para-spinal location)."
"The site of fistula is usually in the thoracolumbar spine, most commonly the lower half of the thoracic spine (T7-T12, 68%) 3."
"In one systematic review, 11% of patients with suspected spontaneous intracranial hypotension and a negative brain and spine MRI have been shown to have a CSF-venous fistula, with a NPV for MRI of 89% 10. Patients with meningeal diverticula on spine imaging or reduced optic nerve sheath diameter could have increased chances of finding CSF-venous fistula with further imaging10."
"Off-label warning: the use of gadolinium-based contrast agents for intrathecal administration is not approved by regulatory agencies such as the FDA. Read more: intrathecal gadolinium."
"MR myelography"
"Off-label warning: the use of gadolinium-based contrast agents for intrathecal administration is not approved by regulatory agencies such as the FDA. Read more: intrathecal gadolinium."
Expected headings
"Associations"
"CT myelography"
"MR myelography"
"Digital subtraction myelography"
"Dynamic fluoroscopic myelography"
"The vast majority of patients with a CSF-venous fistula only have one fistula 11. However, rarely, two or more fistulas have been reported to be present concurrently 11."