The absence of a recent spinal intervention such as a dural puncture is relevant because orthostatic headaches are known, usually self-limiting sequelae of such procedures that do not typically require an imaging workup [4,13]. Orthostatic headaches without a temporal relation to dural puncture usually require 2 initial imaging examinations: brain imaging to help confirm a suspected SIH diagnosis and spine imaging to assist in localizing a potential source of CSF leak [4]. CT Complete Spine With IV Contrast There is no relevant literature to support the use of CT complete spine with intravenous (IV) contrast in the initial imaging of suspected SIH. CT Complete Spine Without and With IV Contrast There is no relevant literature to support the use of CT complete spine without and with IV contrast in the initial imaging of suspected SIH. CT Complete Spine Without IV Contrast There is no relevant literature to support the use of CT complete spine without IV contrast in the initial imaging of suspected SIH. CT Head Cisternography There is no relevant literature to support the use of CT head cisternography in the initial imaging of suspected SIH. The spine has been shown to represent the anatomical source of most symptomatic CSF leaks and venous fistulas, Imaging of Suspected Intracranial Hypotension such that the imaging investigation of leak source should be directed primarily toward the spine and not intracranially [22]. CT Head With IV Contrast There is no relevant literature to support the use of CT head with IV contrast in the initial imaging of suspected SIH. CT Head Without and With IV Contrast There is no relevant literature to support the use of CT head without and with IV contrast in the initial imaging of suspected SIH. CT Head Without IV Contrast There is no relevant literature to support the use of CT head without IV contrast in the initial imaging of suspected SIH.
Imaging of Suspected Intracranial Hypotension PCAs. The absence of a recent spinal intervention such as a dural puncture is relevant because orthostatic headaches are known, usually self-limiting sequelae of such procedures that do not typically require an imaging workup [4,13]. Orthostatic headaches without a temporal relation to dural puncture usually require 2 initial imaging examinations: brain imaging to help confirm a suspected SIH diagnosis and spine imaging to assist in localizing a potential source of CSF leak [4]. CT Complete Spine With IV Contrast There is no relevant literature to support the use of CT complete spine with intravenous (IV) contrast in the initial imaging of suspected SIH. CT Complete Spine Without and With IV Contrast There is no relevant literature to support the use of CT complete spine without and with IV contrast in the initial imaging of suspected SIH. CT Complete Spine Without IV Contrast There is no relevant literature to support the use of CT complete spine without IV contrast in the initial imaging of suspected SIH. CT Head Cisternography There is no relevant literature to support the use of CT head cisternography in the initial imaging of suspected SIH. The spine has been shown to represent the anatomical source of most symptomatic CSF leaks and venous fistulas, Imaging of Suspected Intracranial Hypotension such that the imaging investigation of leak source should be directed primarily toward the spine and not intracranially [22]. CT Head With IV Contrast There is no relevant literature to support the use of CT head with IV contrast in the initial imaging of suspected SIH. CT Head Without and With IV Contrast There is no relevant literature to support the use of CT head without and with IV contrast in the initial imaging of suspected SIH. CT Head Without IV Contrast There is no relevant literature to support the use of CT head without IV contrast in the initial imaging of suspected SIH.