The third ventricle roof: an anatomical study using constructive interference in steady-state magnetic resonance...

Area of Science:

• Neuroanatomy
• Neuroradiology
• Medical Imaging

Background:

• The third ventricle roof is an infrequently explored neuroanatomical region.
• Understanding its detailed structure is crucial for surgical planning.

Purpose of the Study:

• To delineate the neurovascular structures of the third ventricle roof in vivo.
• To utilize magnetic resonance (MR) imaging for detailed visualization.

Main Methods:

• Seventy-eight patients underwent MR imaging.
• Conventional MR sequences were followed by constructive interference in steady-state (CISS) sequences.
• CISS sequences were performed in both coronal and sagittal planes.

Main Results:

• The fornices and internal cerebral veins were consistently delineated.
• Significant variability in the morphology and relationships of the fornices and internal cerebral veins was observed.
• The lower layer of the third ventricle roof appeared as an inhomogeneous membranous or linear structure, varying with imaging plane.

Conclusions:

• The third ventricle roof exhibits high morphological variability.
• Constructive interference in steady-state (CISS) MR imaging is valuable for visualizing this region.
• Enhanced visualization aids in planning safe and effective surgical interventions.