ArticleJournal of neurointerventional surgery2021
Absence of pontine perforators in vertebrobasilar dolichoectasia on ultra-high resolution cone-beam computed tomography.
Article in Journal of neurointerventional surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Vertebrobasilar Dolichoectasia Presenting as Vertigo and Unilateral Weakness: A Case Report.Case reports in medicine · 2026Article
- Significance of Perforating Vessels in Vertebrobasilar Territory Acute Ischemic Stroke Treated With Mechanical Thrombectomy: A Review of Cone-Beam Computed Tomography Findings and the Literature.Journal of stroke · 2026Article
- Spontaneous Intracranial Vertebral Artery Dissection: A Rare Cause of Ischemic Stroke.Journal of cardiovascular development and disease · 2025Review
- The impact of high-resolution cone-beam CT findings on decision-making for the treatment of unruptured middle cerebral artery aneurysms.Neurosurgical review · 2022Article
- Cone-beam CT angiography to assess the microvascular anatomy of intracranial arterial dissections.The neuroradiology journal · 2022Observational
- Prospects and Dilemmas of Endovascular Treatment for Vertebrobasilar Dolichoectasia.Frontiers in neurology · 2022Review
- Identification of Carotid Artery Microstructure and Plaque Rupture Using C-Arm Cone-Beam CT: A Case Report.Frontiers in neurology · 2021Article
- Perforator-sparing basilar artery reconstruction normalizes pathological hemodynamics in vertebrobasilar dolichoectasia: a CFD study.Frontiers in neurologyArticle
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14 authors.
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Abstract
backgroundVertebrobasilar dolichoectasia (VBDE) is a rare type of non-saccular intracranial aneurysm, with poor natural history and limited effective treatment options. Visualizing neurovascular microanatomy in patients with VBDE has not been previously reported, but may yield insight into the pathology, and provide important information for treatment planning.
objectiveTo carry out a retrospective analysis of ultra-high resolution cone-beam computed tomography (UHR-CBCT) in patients with fusiform basilar aneurysms, visualizing neurovascular microanatomy of the posterior circulation with a special focus on the pontine perforators.
methodsUHR-CBCT was performed in seven patients (mean age 59 years; two female) with a VBDE, and in 14 control patients with unrelated conditions.
resultsThe mean maximum diameter of the fusiform vessel segment was 28 mm (range 19-36 mm), and the mean length of the segment was 39 mm (range 15-50 mm). In all patients with VBDE, UHR-CBCT demonstrated an absence of perforating arteries in the fusiform arterial segment and a mean of 3.7 perforators arising from the unaffected vessel segment. The network of interconnected superficial circumferential pontine arteries (brainstem vasocorona) were draping around the aneurysm sac. In controls, a mean of 3.6, 2.5, and 1.2 perforators were demonstrated arising from the distal, mid-, and proximal basilar artery, respectively.
conclusionsThe absence of pontine perforators in the fusiform vessel segment of VBDE is counterbalanced by recruitment of collateral flow from pontine perforators arising from the unaffected segment of the basilar artery, as well as collaterals arising from the anterior inferior cerebellar artery/posterior inferior cerebellar artery and superior cerebellar artery. These alternative routes supply the superficial brainstem arteries (brainstem vasocorona) and sustain brainstem viability. Our findings might have implications for further treatment planning.
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