Variations of vertebral artery: Multidetector Computerized Tomographic Angiography Study

Year 2014, Volume: 16 Issue: 3, 9 - 12, 01.12.2014

Mahinur Ulusoy Musa Acar Serpil Acar Mehmet Emin Sakarya İsmail Zararsız

Abstract

Objective: The aims of this study are detecting Turkish Society’s vertebral artery variationsidentified on MDCT angiograpy and determining origin variations of vertebral arteries and theirarising level from subclavian artery.Materials and Methods: MDCT angiographic images of 96 patiens (31-86 years old, 64 maleand 32 female) were evaluated. Images were obtained using 64 slice multidedector CT scanimages of vertebral artery.Results: In this study, investigations of origin levels of vertebral arteries showed vertebral arterymostly originated from Th1-2 vertebrae in males and vertebral artery mostly originated fromTh1 vertebrae in females. In six different vertebral artery cases variations were detected. Amongthese variations, in four cases vertebral arteries originated from aortic arch (4.1%), in one casevertebral artery is originated from common carotic artery (1%). One patient’s (1%) left vertebralartery was absent, the right vertebral artery alone created basilar artery in the basis cranii.Conclusions: Knowledge of vertebral artery variations that were frequently detected in Turkishsociety is important in explaining the symptoms of vertebrobasiler insufficiency. Identificationof these variations will be very useful for neurology, neurosurgery and cardiovascular surgeryspecialists and radiologists

Keywords

Arteria vertebralis, variation, multidetector CT angiograpy

ARTERİA VERTEBRALİS’İN VARYASYONLARI: MULTİDEDEKTÖR BİLGİSAYARLI TOM

Abstract

Amaç: Bu çalışmanın amacı Türk Toplumu’na ait arteria vertebralis’e ait varyasyonları MDBTangiographi’de tespit edip, arteria vertebralis’in sık görülen orjin varyasyonlarını ve arteriasubclavia’dan çıkış seviyelerini belirlemektir.Gereç Yöntem: Arteria vertebralis’e ait 64 kesitli MDBT imajları kullanılarak oluşturulan (3186 yaş arası 64 erkek, 32 kadın) 96 hastanın MDBT angiographi görüntüleri incelendi.Bulgular: Çalışmada arteria vertebralis’in orjin seviyelerinin incelenmesinde erkeklerde enfazla Th1-2 vertebra, kadınlarda ise Th1 vertebra düzeyinden arteria vertebralis’in çıktığıgözlendi. Arteria vertebralis’e ait altı farklı vakada varyasyon tespit edildi. Bu varyasyonlardanA. vertebralis’in dört vakada arcus aortadan (% 4.1), bir vakada arteria carotis communis’ten(%1) köken aldığı, bir vakada ise sol tarafta olmadığı (%1) sağ arteria vertebralis’in kafatabanında tek başına arteria basillaris’i oluşturduğu tespit edildi.Sonuçlar: Türk Toplumu’nda oldukça sık görülen arteria vertebralis varyasyonlarının bilinmesivertebrobasiler yetmezlik semptomlarının açıklanmasında önemlidir. Bu varyasyonların tespitedilmesi nöroloji, nöroşirurji ve kardiyovasküler cerrrahi uzmanları ve radyologlar açısındançok faydalı olacaktır

Keywords

Arteria vertebralis, varyasyon, multidedektör BT anjiografi

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