Journals / Tanısal ve Girişimsel Radyoloji (Yeni Adı: Dİagnostic & Intervent. Radiol) / 2004 / Cilt: 10 - Sayı: 2

Frequency of vascular variations and anomalies accompanying intracranial aneurysms

İntrakranyal anevrizmalara eşlik eden vasküler varyasyon ve anomalilerin sıklığı

Pages
103–109
DOI
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⚡ TL;DR(Too Long; Didn't Read)

The location of aneurysms and the frequency of arterial variations and anomalies in this study correlated well with data found in previous studies.

📌 3 Key Takeaways

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Objective & Hypothesis:PURPOSE: Investigation of the sites of intracranial aneurysms and incidence of associated congenital variations or anomalies.
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Key Findings & Data:Fourteen cases with vasospasm were excluded and the remaining 176 patients were assessed for the location of the aneurysm and co-incidental vascular variations and/or anomalies.
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Conclusion & Impact:The location of aneurysms and the frequency of arterial variations and anomalies in this study correlated well with data found in previous studies.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Anjiyografi · dijital subtraksiyon · Kafa içi anevrizma

Abstract

PURPOSE: Investigation of the sites of intracranial aneurysms and incidence of associated congenital variations or anomalies. MATERIALS AND METHODS: One hundred and ninety cerebral angiography examinations that were positive for aneurysm were evaluated retrospectively. Fourteen cases with vasospasm were excluded and the remaining 176 patients were assessed for the location of the aneurysm and co-incidental vascular variations and/or anomalies. There were two observers in the study, one of whom was an experienced vascular radiologist. RESULTS: The most frequent locations of aneurysms were the supraclinoid internal carotid artery (32%, n=74), anterior communicating artery (30%, n=68), and iddle cerebral artery bifurcation (23%, n=52). Twenty-eight patients (17%) had multiple aneurysms. Ninety-one (52%) patients had a vascular anomaly or variation. Hypoplasia or agenesis of A1 segment of the anterior cerebral artery was found in 48 patients, an azygous anterior cerebral artery in 1, a frontoorbital artery in 1, a duplicated middle cerebral artery in 1, early bifurcation of the middle cerebral artery in 9, persistent fetal origin of the posterior cerebral artery in 26, fenestration of P1 segment of posterior cerebral artery in 1, agenesis of P1 segment of posterior cerebral artery in 1, fenestration of vertebral artery in 1, double trunk visualization of superior cerebellar artery in 2 patients. CONCLUSION: Due to an increased hemodynamic stress, congenital anomalies of the intracranial arteries predispose to the formation of saccular aneurysms. Nomalies such as A1 hypoplasia or agenesis, azygous anterior cerebral artery, accessory middle cerebral artery and persistent trigeminal artery are detected more frequently in patients with cerebral aneurysms compared to the normal population. The location of aneurysms and the frequency of arterial variations and anomalies in this study correlated well with data found in previous studies.

Özet

AMAÇ İntrakranyal anevrizmaların lokalizasyonları ve eşlik eden konjenital varyasyon veya anomali birliktelğinin araştırılması. GEREÇ VE YÖNTEM İntrakranyal anevrizma saptanan 190 hastanın anjiyografik görüntülerinde intrakranyal anevrizmaların lokalizasyonları değerlendirilmiştir. Vazospazm nedeniyle 14 hasta çıkarılmış, 176 hastada anevrizmaya eşlik eden vasküler varyasyon ve anomaliler araştırılmıştır. Değerlendirme biri deneyimli iki radyolog tarafından aynı anda yapılmıştır. BULGULAR Anevrizma lokalizasyonları en sık supraklinoid internal karotid arter (%32, n=74) anterior komünikan arter (%30, n=68) ve orta serebral arter bifurkasyon (%23, n=52) düzeyinde izlenmiştir. Yirmisekiz olguda multipl anevrizma saptanmıştır. Doksan bir (%52) adet anomali/varyasyon bulunmuştur. Anterior serebral arterin A1 segment hipoplazisi/ agenezisi 48, azigos anterior serebral arter 1, frontoorbital arter varyasyonu 1, orta serebral arterin duplikasyonu 1, erken bifurkasyonu 9, fetal orjinli posterior serebral arter 26, posterior serebral arterin P1 segmentinde fenestrasyon 1, agenezi 1, vertebral arterde fenestrasyon 1, süperior serebellar arterin çift gövde olarak izlenmesi 2 olguda gösterilmiştir. SONUÇ İntrakranyal vasküler yapıların konjenital anomalilerinde hemodinamik strese bağlı olarak sakküler anevrizma insidansının arttığı bildirilmektedir. A1 hipoplazi veya agenezisi, azigos anterior serebral arter, aksesuar orta serebral arter, persistan trigeminal arter gibi anomaliler anevrizma olgularında normal popülasyona göre sık olarak saptanmaktadır. Çalışmamızda anevrizmaların lokalizasyonları, varyasyon/anomali sıklıkları literatürdeki verilerle genel olarak uyumlu bulunmuştur.

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Cite This Article

KARAZİNCİR, S., ADA, E., SARILMAZ, A., YALÇIN, Ö., VİDİNLİ, B., ŞAHİN, E. (2004). Frequency of vascular variations and anomalies accompanying intracranial aneurysms. Tanısal ve Girişimsel Radyoloji (Yeni Adı: Dİagnostic & Intervent. Radiol), Cilt: 10 - Sayı: 2, 103–109. https://ajindex.com/articles/364256

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