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CT CISTERNOGRAPHY

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CT Cisternography is a specialized type of CT scan that is used to assess the flow and potential leaks of cerebrospinal fluid (CSF). The approach for the examination is a combination of computed tomography (CT) imaging and contrast that is injected into the CSF spaces to locate and determine the pathway of an abnormal leak.Molecular Diagnostics and Therapy uses state-of-the-art CT imaging technology and then supervises the process accordingly. High-resolution images assess suspected CSF leakage and aid additional management or surgical preparation if necessary.

About CT Cisternography

The brain and spinal cord are surrounded and protected by cerebrospinal fluid. The base of the skull or the spinal cord has a defect that causes CSF to leak. It is important to find out exactly where the leakage is occurring for diagnosis and treatment planning. CT Cisternography generates cross-sectional images of the relevant anatomical structures in detail and is used to show that contrast is able to pass through an abnormal opening or leak.

What is CT Cisternography?

CT Cisternography involves the injection of a contrast material into the CSF via a lumbar puncture (under proper medical supervision). CT scans are used to assess the distribution of contrast and the location of a potential CSF leak. This process involves positioning of the patient and imaging at the correct phases depending on the suspected location. This method differs depending on the indication and whether the suspected leaking site is at the base of the skull, nose, ear area, or back of neck/over spine.

Common Reasons for CT Cisternography

  • Evaluation of suspected cerebrospinal fluid leakage
  • Investigation of persistent clear nasal or ear discharge when CSF leakage is suspected
  • Assessment following head or spinal trauma
  • Evaluation of suspected postoperative CSF leaks
  • Investigation of suspected skull-base defects
  • Assessment of CSF leakage associated with certain structural abnormalities
  • Preoperative localisation of a confirmed or suspected CSF leak

Conditions Evaluated

CSF Rhinorrhea

CT Cisternography may help identify a CSF leak that presents as persistent clear fluid drainage from the nose.

CSF Otorrhea

The examination may be used when a CSF leak is suspected to involve the ear or temporal bone region.

Skull-Base Defects

Detailed CT imaging can help evaluate structural defects that may provide a pathway for CSF leakage.

Post-Traumatic CSF Leak

The procedure may assist in locating leakage following selected head or spinal injuries.

Postoperative CSF Leak

CT Cisternography can be considered when a persistent CSF leak is suspected after neurosurgical or other relevant procedures.

Who Should Consider This Procedure?

Your doctor may recommend CT Cisternography if you:

  • Have symptoms suggesting a CSF leak
  • Experience persistent clear fluid drainage from the nose or ear
  • Have a suspected skull-base defect
  • Have a history of trauma involving the head or spine
  • Develop symptoms suggestive of CSF leakage after surgery
  • Require precise localisation of a suspected leak for treatment planning

Benefits of CT Cisternography

  • Provides detailed cross-sectional imaging of relevant structures
  • Can assist in localising suspected CSF leaks
  • Helps evaluate skull-base and related anatomical abnormalities
  • Supports diagnosis and treatment planning
  • May provide useful information when conventional imaging does not clearly identify the leak
  • Can help surgeons plan targeted management when a leak site is identified

Important Preparation and Safety Instructions

  • Follow all fasting instructions provided by the medical team.
  • Inform the doctor about all medicines and supplements you are taking.
  • Tell the medical team about any blood-thinning medicines or bleeding disorders.
  • Inform the team about previous reactions to contrast material or medications.
  • Provide information about previous neurological procedures, surgeries, or imaging studies.
  • Inform the medical team about pregnancy or possible pregnancy.
  • Bring previous CT, MRI, or other relevant reports.
  • Follow all instructions regarding observation and post-procedure care.
  • Remain still and follow positioning instructions during imaging.
  • Report any unusual symptoms or discomfort to the medical team immediately.

Why Choose Molecular Diagnostics and Therapy?

  • Experienced Radiology Professionals
  • Advanced CT imaging technology
  • Appropriate image acquisition and reconstruction protocols
  • Careful procedural and patient-safety measures
  • Accurate and reliable reporting
  • NABL & NABH Accredited Diagnostic Centre
  • Patient-focused diagnostic services
  • Comprehensive Nuclear Medicine, Radiology, and Pathology services under one roof

Book Your CT Cisternography

If a doctor suspects a cerebrospinal fluid leak, CT Cisternography provides detailed imaging to help evaluate and localise the suspected leakage. Molecular Diagnostics and Therapy provides specialised CT imaging with appropriate professional supervision and safety protocols

Test information: Usually 4–6 hours of fasting is required before the procedure

Reporting: Within 24 hours*

  • Follow all fasting instructions provided by the doctor or radiology team before the procedure.
  • Inform the medical team about all current medicines, supplements, and ongoing treatments.
  • Tell the doctor if you take blood-thinning medicines or have any bleeding or clotting disorder.
  • Inform the team about any known allergy or previous reaction to contrast media, local anaesthetic, or other medicines.
  • Inform the medical team if you have kidney disease or any other significant medical condition.
  • Inform the doctor if you are pregnant, planning pregnancy, or there is a possibility of pregnancy.
  • Provide information about any previous neurological procedure, spinal surgery, head injury, or other relevant medical history.
  • Bring previous CT, MRI, neurological, surgical, or other relevant reports for review.
  • Follow any instructions regarding blood tests or other pre-procedure investigations when advised.
  • Wear comfortable clothing and remove jewellery or other metal objects as instructed.
  • Follow the medical team’s instructions regarding positioning and remaining still during imaging.
  • Arrange transportation or assistance after the procedure if recommended, particularly when advised to rest or remain under observation.
  • Follow all post-procedure instructions regarding activity, hydration, observation, and medications.
  • Report headache, nausea, dizziness, unusual pain, or any other unexpected symptoms to the medical team immediately.
* For details, please see service-related policies

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