MSCT diagnosis of aneurysms associated with an unusual variant: atypical triplication anterior cerebral artery

Xv, Zhuo-dong; Yuan, Zhenguo; Wang, Ximing; Wang, Lijun; Liu, Cheng

doi:10.1007/s00276-011-0928-1

Cited by 12 publications

(5 citation statements)

References 13 publications

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“…Usually a triple A2 is an incidental finding. Sun et al reported a very interesting case of a triple A2 segment associated with the presence of an aneurysm [ 24 ]. We have not found such a variant in our study.…”

Section: Discussionmentioning

confidence: 99%

Anatomical variations of the anterior communicating artery complex: gender relationship

et al. 2014

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PurposeThe anatomy of the anterior communicating artery complex plays a critical role in surgical treatment of anterior cerebral circulation aneurysms. A thorough description of vascular variations of the anterior communicating artery complex seems to be lacking. The aim of this study was to describe the anatomical variations of the anterior communicating artery complex.MethodsThe study group consisted of 411 subjects (52.31 % women), without any intracranial pathologies, that had undergone head computed tomography angiography. We used maximum intensity projections, volume rendering and multi planar reconstructions to study and classify the anatomical variations of the anterior communicating and anterior cerebral arteries.ResultsMale subjects had a significantly higher prevalence of the typical anterior communicating artery complex (59.69 vs. 46.05 %; p < 0.01). The aplastic anterior communicating artery (23.26 vs. 15.88 %; p = 0.04) and triple A2 segment of the anterior cerebral artery (1.86 vs. 0.00 %; p = 0.05) were more common in women than in men.ConclusionFemale subjects have a higher incidence of variations in the anterior communicating artery complex. There is a higher incidence of anterior communicating artery aplasia among women.

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Section: Discussionmentioning

confidence: 99%

Anatomical variations of the anterior communicating artery complex: gender relationship

et al. 2014

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“…7 In some cases the triplication is discussed as a risk factor leading to aneurysm. 15,16 In modern diagnostic algorithms of patients with an acute cerebrovascular event, beyond non-enhanced cerebral CT scans, usually also a CTA is included. CTA is especially inevitable in detecting large vessel occlusions.…”

Section: Discussionmentioning

confidence: 99%

Usefulness of Computed Tomographic Perfusion Imaging for Appropriate Diagnosis of Acute Cerebral Vessel Occlusion in Case of Anatomic Variations of the Circle of Willis

et al. 2021

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Mechanical thrombectomy (MT) is an effective treatment in patients with acute ischemic stroke (AIS) due to emergent large-vessel occlusion in the anterior circulation. Occlusion of the anterior cerebral artery (ACA) affects up to 15% of these patients. Here we report a case of an old-aged patient with an successful MT of an embolic A2-segment occlussion with the anatomic variation of a triplication. Triplication of ACA is a rare anatomical variation, and the occlusion could have been easily overlooked in case of not performing the CT-perfusion (CTP) sequences. As anatomical variations of the circle of Willis are present in most subjects, CTA alone might be limited in the acute setting, particularly for young residents performing the first view on call. This case highlights the importance of including CTP in the initial CT-diagnostic algorithm in AIS patients who are basically eligible for recanalization therapies, irrespective of inconspicuous initial findings in CTA.

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“…Again Cadaveric studies show a vast range of AComA hypoplasia frequency from 9.15 to 30.0% 12 . In addition, aplastic AComA is a rare autopsy finding, found only in 1.8 % of studied subjects [13][14][15][16][17][18] . This phenomenon can be explained by the fact that hypoplastic arteries may not be hemodynamically efficient, therefore are not visible in angiographic studies and thus are considered to be aplastic 19,15 .…”

Section: Discussionmentioning

confidence: 99%

Digital Subtraction Angiography of Anterior Cerebral Artery Complex in Indian Population at Two Tertiary Super-Specialty Hospitals

Hossain¹,

Husain²,

Islam³

et al. 2018

J. Natl Inst. Neurosci Bangladesh

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Background: Cerebral circulation has different variations in blood supply. Anterior cerebral artery is an important terminal branch of internal carotid artery. It forms the anterior component of circle of Willis along with the anterior communicating artery. The knowledge of anatomical variations in anterior cerebral artery is of considerable help to clinicians.Objective: The purpose of the study is to find out common anatomical variations of anterior cerebral artery complex by digital subtraction angiography in Indian population.Methodology: This descriptive cross-sectional study was conducted in the Neurointervention department of Max Super-specialty Hospital, New Delhi and Neo Multi-specialty Hospital, Noida, India during July 2016 to December 2016 for a period of six (06) months. Patients admitted in the Neurointervention department for digital subtraction angiography (DSA) were included in this study. Sampling technique was purposive. The angiogram machine was SIEMENS Artis Zee system and framing rate was 4f/sec. Morphology and variations of the anterior cerebral arteries and the anterior communicating artery were studied in 75 patients undergone cerebral DSA.Results: Variations were found in 48% (n=36). Variations of the segments in relation with size, course, communications and terminations of the anterior cerebral artery (ACA) were noted. These were divided into different groups like hypoplasia, aplasia, duplication and fenestrations. Hypoplasia/Aplasia of proximal anterior cerebral artery (A1) was 13.3% in right side and 5.3% in left side. Anterior communicating artery (AComA) was found absent in 10.7% and fenestration in 12%. Callosomarginal artery was found absent in 1.3% in right side and 5.3% in left side. In right callosomarginal artery 6.8% had abnormal origin and 4.2% abnormal in left side. Pericallosal artery was present 100% on both sides.Conclusion: Variations of anterior cerebral artery complex anatomy is found common in Indian population. Among them hypoplasia/aplasia is most commonJournal of National Institute of Neurosciences Bangladesh, 2018;4(1): 12-17

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MSCT diagnosis of aneurysms associated with an unusual variant: atypical triplication anterior cerebral artery

Cited by 12 publications

References 13 publications

Anatomical variations of the anterior communicating artery complex: gender relationship

Anatomical variations of the anterior communicating artery complex: gender relationship

Usefulness of Computed Tomographic Perfusion Imaging for Appropriate Diagnosis of Acute Cerebral Vessel Occlusion in Case of Anatomic Variations of the Circle of Willis

Digital Subtraction Angiography of Anterior Cerebral Artery Complex in Indian Population at Two Tertiary Super-Specialty Hospitals

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