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ORIGINAL ARTICLES
Published online: 2018-10-09
Submitted: 2018-09-03
Accepted: 2018-09-23
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Anatomical variations and dimensions of arteries in the anterior part of the circle of Willis

Jeton Shatri, Selim Cerkezi, Veton Ademi, Valvita Reci, Sadi Bexheti
DOI: 10.5603/FM.a2018.0095
·
Pubmed: 30311936

open access

Ahead of Print
ORIGINAL ARTICLES
Published online: 2018-10-09
Submitted: 2018-09-03
Accepted: 2018-09-23

Abstract

Background: The aim of this study was to investigate different anatomic variations and dimensions of anterior part of the CW and their prevalence on Kosovo's population.

Materials and methods: This is an observative descriptive and retrospective study performed at the University Clinical Center, Clinic of Radiology. The three-dimensional time-of-flight (TOF) technique was used for MRA imaging to evaluate the anatomy of the CW in 513 adults without clinical manifestations for cerebrovascular disease. The diameters of arteries of the CW were measured and variations were recorded.

Results: The complete anterior part of CW was found in 64.3% of cases, more evident aboutfemale at about 66% than male 62.2%. Morphologic variations of the ACA1 are agenesis or hypoplasia in 5.65%, fusion of the ACAs on a short distance in 6.5% and fusion of the ACA on a long distance in 2.5%, median ACA is presented in 11 examined patients or 2.1%. Normal ACoA was seen in 68.2%, hypoplasia or absence 15.66%, double ACoA in 0.6% and fenestrations in 3.89%. The mean calibrations of the vessels were measured as 2.04 mm in right A1, 2.06 mm in left A1 and 1.16 mm of ACoA. While, 14.1 mm length of right A1, 13.87 mm of left A1 and 2.99 m of ACoA.

Conclusions: Knowledge of the variations and diameter of the anterior part of the CW has a great importance in determination of anatomical variations and diameter in general populations, also, in interventional radiology for various endovascular interventions as well as during anatomy lessons.

Abstract

Background: The aim of this study was to investigate different anatomic variations and dimensions of anterior part of the CW and their prevalence on Kosovo's population.

Materials and methods: This is an observative descriptive and retrospective study performed at the University Clinical Center, Clinic of Radiology. The three-dimensional time-of-flight (TOF) technique was used for MRA imaging to evaluate the anatomy of the CW in 513 adults without clinical manifestations for cerebrovascular disease. The diameters of arteries of the CW were measured and variations were recorded.

Results: The complete anterior part of CW was found in 64.3% of cases, more evident aboutfemale at about 66% than male 62.2%. Morphologic variations of the ACA1 are agenesis or hypoplasia in 5.65%, fusion of the ACAs on a short distance in 6.5% and fusion of the ACA on a long distance in 2.5%, median ACA is presented in 11 examined patients or 2.1%. Normal ACoA was seen in 68.2%, hypoplasia or absence 15.66%, double ACoA in 0.6% and fenestrations in 3.89%. The mean calibrations of the vessels were measured as 2.04 mm in right A1, 2.06 mm in left A1 and 1.16 mm of ACoA. While, 14.1 mm length of right A1, 13.87 mm of left A1 and 2.99 m of ACoA.

Conclusions: Knowledge of the variations and diameter of the anterior part of the CW has a great importance in determination of anatomical variations and diameter in general populations, also, in interventional radiology for various endovascular interventions as well as during anatomy lessons.

Get Citation

Keywords

variations of anterior part, dimensions of ACA, dimensions of ACoA, CW, anterior part of circle of Willis

About this article
Title

Anatomical variations and dimensions of arteries in the anterior part of the circle of Willis

Journal

Folia Morphologica

Issue

Ahead of Print

Published online

2018-10-09

DOI

10.5603/FM.a2018.0095

Pubmed

30311936

Keywords

variations of anterior part
dimensions of ACA
dimensions of ACoA
CW
anterior part of circle of Willis

Authors

Jeton Shatri
Selim Cerkezi
Veton Ademi
Valvita Reci
Sadi Bexheti

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