Persistent dorsal ophthalmic artery and ophthalmic artery arising from the middle meningeal artery diagnosed by MR angiography at 3 T

Uchino, Akira; Saito, Naoko; Takahashi, Masahiro; Kozawa, Eito; Mizukoshi, Waka; Nakajima, Reiko; Okano, Nanami

doi:10.1007/s00276-013-1085-5

Cited by 56 publications

(58 citation statements)

References 23 publications

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“…Anomalous origins can result from anomalies in development, annexation, or disappearance of embryonic OAs and the orbital branch of the stapedial artery. 21 Examples of these variants include the OA originating from the anterior cerebral artery, 11 the cavernous portion, 35 the middle meningeal artery, 11,44 or the basilar artery. 37 The incidence of an anomalous origin of the OA was 1.89% in this study.…”

Section: Discussionmentioning

confidence: 99%

High incidence of ICA anterior wall aneurysms in patients with an anomalous origin of the ophthalmic artery: possible relevance to the pathogenesis of aneurysm formation

Indo

Oya

Tanaka

et al. 2014

JNS

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Object Surgery for aneurysms at the anterior wall of the internal carotid artery (ICA), which are also referred to as ICA anterior wall aneurysms, is often challenging. A treatment strategy needs to be determined according to the pathology of the aneurysm—namely, whether the aneurysm is a saccular aneurysm with firm neck walls that would tolerate clipping or coiling, a dissecting aneurysm, or a blood blister–like aneurysm. However, it is not always possible to properly evaluate the condition of the aneurysm before surgery solely based on angiographic findings. Methods The authors focused on the location of the ophthalmic artery (OA) in determining the pathology of ICA anterior wall aneurysms. Between January 2006 and December 2012, diagnostic cerebral angiography, for any reason, was performed on 1643 ICAs in 855 patients at Saitama Medical Center. The authors also investigated the relationship between the origin of the OA and the incidence of ICA anterior wall aneurysms. The pathogenesis was also evaluated for each aneurysm based on findings from both angiography and open surgery to identify any correlation between the location where the OA originated and the conditions of the aneurysm walls. Results Among 1643 ICAs, 31 arteries (1.89%) were accompanied by an anomalous origin of the OA, including 26 OAs originating from the C3 portion, 3 originating from the C4 portion, and 2 originating from the anterior cerebral artery. The incidence of an anomalous origin of the OA had no relationship to age, sex, or side. Internal carotid artery anterior wall aneurysms were observed in 16 (0.97%) of 1643 ICAs. Female patients had a significantly higher risk of having ICA anterior wall aneurysms (p = 0.026). The risk of ICA anterior wall aneurysm formation was approximately 50 times higher in patients with an anomalous origin of the OA (25.8% [8 of 31]) than in those with a normal OA (0.5% [8 of 1612], p < 0.0001). Based on angiographic classifications, saccular aneurysms were significantly more common in patients with an anomalous origin of the OA than in those with a normal OA (p = 0.041). Ten of 16 patients with ICA anterior wall aneurysms underwent craniotomies. Based on the intraoperative findings, all 6 aneurysms with normal OAs were dissecting or blood blister–like aneurysms, not saccular aneurysms. Conclusions There was a close relationship between the location of the OA origin and the predisposition to ICA anterior wall aneurysms. Developmental failure of the OA and subsequent weakness of the vessel wall might account for this phenomenon, as previously reported regarding other aneurysms related to the anomalous development of parent arteries. The data also appear to indicate that ICA anterior wall aneurysms in patients with an anomalous origin of the OA tend to be saccular aneurysms with normal neck walls. These findings provide critical information in determining therapeutic strategies for ICA anterior wall aneurysms.

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Section: Discussionmentioning

confidence: 99%

High incidence of ICA anterior wall aneurysms in patients with an anomalous origin of the ophthalmic artery: possible relevance to the pathogenesis of aneurysm formation

Indo

Oya

Tanaka

et al. 2014

JNS

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“…In such a case, the normal OphA is usually small in caliber and supplies only the central retinal artery, and the OphA arising from the cavernous ICA is relatively large and supplies structures in and around the orbit. The most frequent type of anomalous origin of the OphA is the middle meningeal artery, reportedly constituting 1.45 % of OphAs [15]. Other rare types of anomalous origin of the OphA have included the basilar artery [13], posterior communicating artery in the case of ICA agenesis [10], and the inter-optic course of the ACA [2].…”

Section: Discussionmentioning

confidence: 99%

“…The ophthalmic artery (OphA) usually arises from the internal carotid artery (ICA) just distal to the dural ring, rarely originates from the cavernous segment of the ICA [15], and extremely rarely arises from the A1 segment of the anterior cerebral artery (ACA). Several cases of OphA of ACA origin found during angiography or surgery have been reported [3,5,8].…”

Section: Introductionmentioning

confidence: 99%

Ophthalmic artery arising from the anterior cerebral artery diagnosed by MR angiography

et al. 2015

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Extremely rarely, the ophthalmic artery (OphA) arises from the A1 segment of the anterior cerebral artery (ACA). Discovery of this anomalous OphA during angiography or surgery has been reported in several patients. We report a case in which an OphA of ACA origin was diagnosed by magnetic resonance (MR) angiography and confirmed by selective cerebral angiography. To our knowledge, this is the first report of this variation with MR angiography. Careful observation of MR angiographic images is important for detecting rare arterial variations. Partial maximum-intensity-projection images are useful in identifying tiny anomalous arteries on MR angiography.

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“…The prevalence of persistent dorsal OA was 0.42%, and the prevalence of OA arising from the middle meningeal artery was 1.45% with a tendency toward right-side predominance (2).…”

Section: Introductionmentioning

confidence: 93%

Persistent Dorsal Ophthalmic Artery Arising from the Internal Carotid Artery: Report of Three Cases

Shin

Lee

Shim

et al. 2016

J Korean Soc Radiol

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Normally, the ophthalmic artery (OA) arises from the supraclinoid segment of the internal carotid artery (ICA) and enters the orbit via the optic canal. A persistent dorsal OA is a rare variation that originates from the cavernous segment of the ICA and enters the orbit via the superior orbital fissure. To the best of our knowledge, persistent dorsal OA has not been described in the Korean literature. In this paper, we report three cases of persistent dorsal OA with review of the literature on embryogenesis and other origins of the OA.

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Persistent dorsal ophthalmic artery and ophthalmic artery arising from the middle meningeal artery diagnosed by MR angiography at 3 T

Cited by 56 publications

References 23 publications

High incidence of ICA anterior wall aneurysms in patients with an anomalous origin of the ophthalmic artery: possible relevance to the pathogenesis of aneurysm formation

High incidence of ICA anterior wall aneurysms in patients with an anomalous origin of the ophthalmic artery: possible relevance to the pathogenesis of aneurysm formation

Ophthalmic artery arising from the anterior cerebral artery diagnosed by MR angiography

Persistent Dorsal Ophthalmic Artery Arising from the Internal Carotid Artery: Report of Three Cases

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