Yıl 2018, Cilt 12, Sayı 1, Sayfalar 20 - 26 2018-06-04

Anatomical variations of the circle of Willis: evaluation with CT angiography

Hilal Şahin [1] , Yeliz Pekçevik [2]

14 14

Objectives: The aim of this study was to investigate anatomic variants and anomalies of the circle of Willis using computed

tomography angiography (CTA).

Methods: CTA images of 770 patients obtained from Tepecik Training and Research Hospital between January 2012 to January

2017 were retrospectively reviewed to identify the anatomical vascular variations of the circle of Willis.

Results: After exclusion, 751 patients (348 females, 403 males, mean age 54.6 years, range 18–90 years) were enrolled into the

study. The anatomical variations related to the posterior communicating artery (PcoA) were the most common, whereas anatomical

variations related to the middle cerebral artery (MCA) were the least common variations among arteries. Hypoplasia of the

A1 segment was the most common (14.6%) variation of the anterior cerebral artery (ACA) and fenestration of this artery was

the least common variation (1,06%) observed only in A1 segment. Bilateral absence of the PcoA was seen in 27.56% of the

patients. Fenestration was more commonly detected in anterior communicating artery (AcoA) (10.12%), followed by MCA

(1.06%), ACA (1,06%) and PCA (0.67%). Duplication was the least common variation which was detected in MCA, AcoA and

PcoA.

Conclusion: Arterial variations of the circle of Willis are not rare and can be non-invasively evaluated using CTA.

angiography; cerebral arteries; circle of Willis; computed tomography; variation
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Birincil Dil en
Konular Sağlık Bilimleri
Dergi Bölümü Original Articles
Yazarlar

Yazar: Hilal Şahin
E-posta: yelizpekcevik@yahoo.com
Kurum: İzmir Tepecik Eğitim ve Araştırma Hastanesi
Ülke: Turkey


Yazar: Yeliz Pekçevik
E-posta: yelizpekcevik@yahoo.com
Kurum: İzmir Tepecik Eğitim ve Araştırma Hastanesi
Ülke: Turkey


Bibtex @araştırma makalesi { anatomy430143, journal = {Anatomy}, issn = {1307-8798}, address = {Türk Anatomi ve Klinik Anatomi Derneği}, year = {2018}, volume = {12}, pages = {20 - 26}, doi = {}, title = {Anatomical variations of the circle of Willis: evaluation with CT angiography}, key = {cite}, author = {Pekçevik, Yeliz and Şahin, Hilal} }
APA Şahin, H , Pekçevik, Y . (2018). Anatomical variations of the circle of Willis: evaluation with CT angiography. Anatomy, 12 (1), 20-26. Retrieved from http://dergipark.gov.tr/anatomy/issue/37227/430143
MLA Şahin, H , Pekçevik, Y . "Anatomical variations of the circle of Willis: evaluation with CT angiography". Anatomy 12 (2018): 20-26 <http://dergipark.gov.tr/anatomy/issue/37227/430143>
Chicago Şahin, H , Pekçevik, Y . "Anatomical variations of the circle of Willis: evaluation with CT angiography". Anatomy 12 (2018): 20-26
RIS TY - JOUR T1 - Anatomical variations of the circle of Willis: evaluation with CT angiography AU - Hilal Şahin , Yeliz Pekçevik Y1 - 2018 PY - 2018 N1 - DO - T2 - Anatomy JF - Journal JO - JOR SP - 20 EP - 26 VL - 12 IS - 1 SN - 1307-8798-1308-8459 M3 - UR - Y2 - 2018 ER -
EndNote %0 Anatomy Anatomical variations of the circle of Willis: evaluation with CT angiography %A Hilal Şahin , Yeliz Pekçevik %T Anatomical variations of the circle of Willis: evaluation with CT angiography %D 2018 %J Anatomy %P 1307-8798-1308-8459 %V 12 %N 1 %R %U