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Related Concept Videos

Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

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DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
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Related Experiment Video

Updated: May 5, 2026

3D Modeling of the Lateral Ventricles and Histological Characterization of Periventricular Tissue in Humans and Mouse
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The vascular safe zone for endoscopic third ventriculostomy: a radiomorphometric study.

Nicolás Rincón-Arias1, Nadin J Abdala-Vargas2, Sabino Luzzi3

  • 1Department of Neurosurgery, Fundación Universitaria de Ciencias de la Salud - FUCS, Hospital de San José - Sociedad de Cirugía de Bogotá, Bogotá, Colombia; Department of Neurosurgery, Fundación Universitaria de Ciencias de la Salud - FUCS, Hospital Infantil Universitario de San José, Bogotá, Colombia.

Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia
|August 19, 2025
PubMed
Summary

This study identifies the safest area for endoscopic third ventriculostomy (ETV) fenestration by analyzing neuroanatomy. The anterior floor of the third ventricle is the recommended "vascular safe zone" to avoid basilar artery injury.

Keywords:
Basilar artery complexEndoscopic third ventriculostomyHydrocephalusNeuroendoscopyNeurosurgeryThird ventricle floor

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Area of Science:

  • Neurosurgery
  • Neuroradiology
  • Neuroanatomy

Background:

  • Endoscopic third ventriculostomy (ETV) is a key procedure for hydrocephalus.
  • The floor of the third ventricle (3VF) and basilar artery (BA) complex anatomy influence ETV risks.
  • Identifying a
  • vascular safe zone
  • is crucial for ETV safety.

Purpose of the Study:

  • To evaluate the neuroradiological characteristics of the 3VF and BA complex.
  • To define the optimal ETV fenestration
  • vascular safe zone
  • to minimize BA complex injury.

Main Methods:

  • Retrospective review of preoperative MRI scans from adult ETV patients (Jan 2016 - Mar 2025).
  • Analysis of sagittal and axial 3VF and BA complex neuroradiological features.

Main Results:

  • The basilar artery (BA) complex was predominantly in the posterior half of the 3VF (71.2%).
  • Type II anatomy was most common in the sagittal plane (74%).
  • Specific distances from the BA complex to the 3VF were quantified in sagittal and axial planes.

Conclusions:

  • The anterior half of the 3VF is suggested as the primary
  • vascular safe zone
  • for ETV fenestration.
  • Further research with intraoperative neuroendoscopy is needed to validate this zone.
  • Clinical outcomes should be assessed to confirm the effectiveness of the proposed fenestration area.