Journals / Turkish Neurosurgery / 2011 / Cilt: 21 - Sayı: 4

Kranial sefalometrik değerlendirme ile süperior ve anterior inferior serebellar arterlerin serebellopontin açı ve kranial sinirler ile olan ilişkisinin değerlendirilmesi: kadavra çalışması

Superior and anterior ınferior cerebellar arteries and their relationship with cerebello-pontine angle cranial nerves revisited in the light of cranial cephalometric ındexes: a cadaveric study

Pages
504–515
DOI
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ConclusIon: We documented anatomical variations of the superior and anterior inferior cerebellar arteries along with some cephalometric equations with relevant neurovascular anatomy in Iranian cadavers.

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Objective & Hypothesis:AIm: The aim was to clarify the anatomical features of the superior and anterior inferior cerebellar arteries in relation to the trigeminal nerve and acoustic-facial complex and to the bony structures of the skull in a sample of male Iranian cadavers.
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Key Findings & Data:Ma terIal and Methods: Bilateral dissections, calvariectomy, and brain evacuation were performed on 31 adult human fresh brains and skull bases to assess the neurovascular associations, and skull base morphometry.
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Conclusion & Impact:ConclusIon: We documented anatomical variations of the superior and anterior inferior cerebellar arteries along with some cephalometric equations with relevant neurovascular anatomy in Iranian cadavers.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

AIm: The aim was to clarify the anatomical features of the superior and anterior inferior cerebellar arteries in relation to the trigeminal nerve and acoustic-facial complex and to the bony structures of the skull in a sample of male Iranian cadavers. Ma terIal and Methods: Bilateral dissections, calvariectomy, and brain evacuation were performed on 31 adult human fresh brains and skull bases to assess the neurovascular associations, and skull base morphometry. Equations were defined to estimate posterior fossa volume and the relationships between bony and neurovascular elements. Results: Eight SCAs were duplicated from origin. There were 9 cases of SCA-trigeminal contacts, which were at the root entry zone in 7. Mean distance from the origin of AICA to the vertebrobasilar junction was 11.80 mm, while 79% of AICAs originated from the lower half of the BA. This was significantly associated with “posterior fossa funneling” and “basilar narrowing” indexes. In most cases AICA crossed the acoustic-facial complex and coursed between neural bundles (48.3%). The AICA reached or entered the internal acoustic canal in 22.6% of cases and was medial to porous in 77.4%. ConclusIon: We documented anatomical variations of the superior and anterior inferior cerebellar arteries along with some cephalometric equations with relevant neurovascular anatomy in Iranian cadavers.

Özet

AMAÇ: İran kökenli erkek kadavralarda, süperior ve anterior inferior serebellar arterlerin trigeminal sinir, akustik-fasial kompleks ve kemik yapılar ile olan ilişkilerinin belirlenmesi. YÖNTEM ve GEREÇLER: Kafatası kubbesi çıkarılan 31 kadavrada çalışma yapıldı. Serebrum dokusu tamamen çıkarıldıktan sonra posterior fossa yapılarının nörovasküler ilişkileri kemik yapıları ile birlikte morfometrik açıdan değerlendirildi. Posterior fossanın hacmi ile kemik ve vasküler yapılar arasındaki morfometrik ilişkiye göre eşitlikler belirlendi. BULGULAR: Süperior serebellar arter 8 kadavrada başlangıçtan itibaren çift olarak izlendi. Süperior serebellar arter ve trigeminal sinir arasında 9 kadavrada temas olduğu görüldü, bunlardan ikisinde olan temas trigeminal sinir giriş noktasındaydı. Anterior inferior serebellar arter ile vertebrobasiler bileşke arasındaki ortalama uzaklık 11,80 mm bulundu ve anterior inferior serebellar arter %79 olguda basiller arterin alt yarısından çıkıyordu. Posterior fossa hunileşmesi (Funneling) ve basiller daralma indeksi ile anterior inferior serebellar arterin basiler arterin alt yarısından çıkması arasında ilişki bulundu. Olguların çoğunda anterior inferior serebellar arter akustik fasial kompleks ile çaprazlaşıyor ve nöral lifler arasında seyrediyordu (%48,3). Anterior inferior serebellar arter internal akustik kanalın ya içerisine kadar ilerliyor (%22,6) ya da kanalın medial yüzeyine temas ediyordu (% 77.4). SONUÇ: İran kökenli insanlarda süperior serebellar arterin ve anterior inferior serebellar arterin varyasyonları, nörovasküler ilişkileri yanı sıra bu ilişkilere dayanarak bazı sefalometrik eşitlikler de oluşturuldu.

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Cite This Article

HABIBI, Z., MEYBODI, A. T., MALEKI, F., TABATABAI, S. A. F. (2011). Kranial sefalometrik değerlendirme ile süperior ve anterior inferior serebellar arterlerin serebellopontin açı ve kranial sinirler ile olan ilişkisinin değerlendirilmesi: kadavra çalışması. Turkish Neurosurgery, Cilt: 21 - Sayı: 4, 504–515. https://ajindex.com/articles/417767

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