Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2006 Jan 20;12(Suppl 1):39-44.
doi: 10.1177/15910199060120S103. Epub 2006 Jun 15.

Neuroradiological Analysis of 23 Cases of Basilar Artery Fenestration Based on 2280 Cases of MR Angiographies

M Tanaka  1 , Y Kikuchi, T Ouchi
Affiliations

Neuroradiological Analysis of 23 Cases of Basilar Artery Fenestration Based on 2280 Cases of MR Angiographies

M Tanaka et al. Interv Neuroradiol. .

Abstract

Basilar artery (BA) fenestrations are the most frequently observed variant of the cerebral arteries. We examined the magnetic resonance (MR) angiographic incidence, location, characteristic configuration of BA fenestration and associated vascular disease. From April 2004 to September 2004, a total of 2280 cranial MR angiographies were performed at our institution. Twenty-three BA fenestrations (1.0%) were detected on MRA. There were 13 males and ten females in this group and mean age was 57.6 years old. Three cases of these fenestration group are suffered with atherothrombic infarction in the territory of vertebro-basilar system. Seven of 23 cases (30%) were associated with intracranial aneurysm. Of those four cases, aneurysms were located at anterior circulation. Of those three cases, the aneurysms were associated with BA fenestration. Since saccular aneurysms are reported to arise frequently at BA fenestration, knowledge and recognition of fenestration are useful and important in the interpretation of cerebral MR angiography.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Type I: fenestration locating proximal to AICA, Type II: bilateral AICA symmetrically originating from the fenestrated trunk, Type III: unilateral AICA originating one side of the fenestrated trunk, Type IV: fenestration locating distal to AICA.
Figure 2
Figure 2
Double fenestration.
Figure 3
Figure 3
A) Fusiforme aneurysm at V4 portion. B) Aneurysm associated with fenestration confirmed with 3D helical CT. C) Invagination of the aneurysm into the brain stem originating from fenestration represented with hemifacial spasm.
See this image and copyright information in PMC

References

    1. Takahashi M. Atlas of Vertebral Angiography. Tokyo: Bunkyoku; 1974. pp. 22–24.
    1. Uchino A, Kato A, et al. Basilar artery fenestrations detected by MR angiography. Radiat Med. 2001;19:71–74. - PubMed
    1. Newton TH, Potts DG. Angiography. Vol. 69. St. Louis: Mosby; 1974. Radiology of the Skull and Brain; pp. 1775–1795.
    1. Adachi B. Das Arteriensystem der Japaner. Kyoto, Japan: Kaiserlich-Japanischen Univerität zu Kyoto; 1928.
    1. Padget DH. The development of the cranial arteries in the human embryo. Contrib Embryol. 1948;32:205–261.

LinkOut - more resources