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Optimization of the Longa Middle Cerebral Artery Occlusion Method for Complete Reperfusion
Published on: November 22, 2024
Posterior communicating artery: from microsurgical, endoscopic and radiological perspective
1Department of Neurosurgery, Harran University School of Medicine, Sanliurfa, Turkey. avciemel@hotmail.com
Minimally Invasive Neurosurgery : MIN
|September 21, 2005
Summary
The posterior communicating artery shows significant variations in configuration, with hypoplastic and fetal types being common. Understanding these anatomical differences is crucial for successful surgical interventions.
Area of Science:
- Neuroanatomy
- Vascular Anatomy
- Cerebrovascular Research
Background:
- The posterior communicating artery (PCoA) is a key component of the circle of Willis.
- Variations in PCoA anatomy can impact surgical outcomes and diagnostic imaging.
- Detailed morphological understanding is essential for neurosurgeons and radiologists.
Purpose of the Study:
- To elucidate the morphological characteristics of the PCoA and its perforating branches.
- To analyze PCoA variations within different circle of Willis configurations.
- To assess the PCoA's relationship with adjacent anatomical structures.
- To evaluate the detectability of PCoA variations using cerebral MR angiography.
Main Methods:
- Microscopic examination of 24 cerebral hemisphere specimens.
- Endoscopic examination of 5 cadaver specimens.
- 3D Time-of-Flight (TOF) Magnetic Resonance (MR) angiography in 62 patients.
Main Results:
- PCoA configurations included hypoplastic (28%), transitional (14%), fetal (28%), and adult (30%) in specimens.
- MR angiography revealed hypoplastic (34%), fetal (10%), and adult (45%) configurations, with 11% showing no PCoA or transitional types.
- Infundibular dilatation occurred in 22% of cases; the pre-mamillary artery was the thickest perforator.
- PCoA diameter ranged from 0.5 to 3.03 mm.
Conclusions:
- Variations in PCoA morphology and its perforators are significant.
- Comprehensive knowledge of these variations is vital for optimizing surgical interventions.
- MR angiography is a valuable tool for identifying PCoA variations.
