CT cisternography
Updates to Article Attributes
Body
was changed:
Computed tomography (CT) cisternography is an imaging technique used to diagnose CSF rhinorrhearhinorrhoea or CSF otorrheaotorrhoea (CSF leaks), as CT allows the assessment of the bones of the base-of-skull of skull.
Procedure
- pre-contrast CT is performed with thin slices
- 3-10 mL of an iodinated
nonionicnon-ionic low-osmolar contrast agent is installed into the thecal sac after lumbar puncture - the patient is then tilted with foot-end elevation and a CT scan is performed with thin slices; manoeuvres that provoke an active leak, such as head hanging or sneezing, are performed to visualise intermittent or occult leaks
- post-contrast images are then compared with the pre-contrast image to see where the CSF and the contrast are leaking out
- radionuclide cisternography is more sensitive but has poor anatomic resolution compared to CT cisternography
-<p><strong>Computed tomography (CT) cisternography</strong> is an imaging technique used to diagnose <a href="/articles/csf-rhinorrhoea">CSF rhinorrhea</a> or <a href="/articles/csf-otorrhoea">CSF otorrhea</a> (CSF leaks), as CT allows the assessment of the bones of the base-of-skull. </p><h5>Procedure</h5><ul>- +<p><strong>Computed tomography (CT) cisternography</strong> is an imaging technique used to diagnose <a href="/articles/csf-rhinorrhoea">CSF rhinorrhoea</a> or <a href="/articles/csf-otorrhoea">CSF otorrhoea</a> (CSF leaks), as CT allows the assessment of the bones of the base of skull. </p><h5>Procedure</h5><ul>
-<li>3-10 mL of an iodinated nonionic low-osmolar contrast agent is installed into thecal sac after lumbar puncture</li>- +<li>3-10 mL of an iodinated non-ionic low-osmolar contrast agent is installed into the thecal sac after lumbar puncture</li>
Sections changed:
- Interventional Radiology
- Approach
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