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Neuro-endoscopic third ventriculostomy: evaluation with magnetic resonance imaging
D J Wilcock1, T Jaspan, B S Worthington
1University Department of Radiology, Leicester Royal Infirmary, Department of Radiology, UK.
Clinical Radiology
|January 1, 1997
Summary
Magnetic resonance (MR) imaging is crucial for planning and monitoring neuro-endoscopic third ventriculostomy. This technique effectively visualizes the third ventricle
Area of Science:
- Neurosurgery
- Neuroradiology
- Medical Imaging
Background:
- Endoscopic third ventriculostomy (ETV) is a neurosurgical procedure to treat hydrocephalus.
- Accurate pre-operative and post-operative imaging is essential for successful ETV outcomes.
- Magnetic resonance (MR) imaging offers detailed anatomical visualization.
Purpose of the Study:
- To evaluate the utility of MR imaging in patients undergoing ETV.
- To assess MR imaging's role in planning, guidance, and follow-up of ETV procedures.
Main Methods:
- Prospective study involving 14 patients undergoing ETV.
- Pre-operative and serial post-operative MR imaging examinations were performed.
- Analysis focused on third ventricular morphology, puncture site identification, and post-procedural changes.
Main Results:
- MR imaging accurately depicted third ventricular anatomy and identified optimal puncture sites.
- The relationship between the third ventricular floor and the basilar artery was clearly visualized.
- Post-ETV, a cerebrospinal fluid (CSF) flow void was a consistent finding, more so than ventricular size reduction.
Conclusions:
- MR imaging is indispensable for both the planning and follow-up phases of ETV.
- It provides critical anatomical information for safe and effective neurosurgical intervention.
- The demonstration of CSF flow void is a valuable post-procedural imaging marker.