7,346 results match your criteria Brain Imaging in Arteriovenous Malformation


Non-traumatic Hematomyelia: A Rare Finding in Clinical Practice.

Eur J Case Rep Intern Med 2018 28;5(11):000961. Epub 2018 Nov 28.

Department of Internal Medicine, Centro Hospitalar do Meio Tejo, EPE, Tomar, Portugal.

Non-traumatic haematomyelia is a rare finding of acute onset, which in most cases is the result of arteriovenous malformations (AVM), tumours, coagulation disorders or autoimmune conditions, but may also be secondary to treatment with anticoagulants and radiotherapy. We present the case of a 58-year-old woman with sudden onset cervical pain, followed by asymmetric diminution of strength in the upper limbs with reduced pain sensitivity. The diagnosis of AVM at the C7 and D1 levels was made following cervico-dorsal magnetic resonance imaging and angiography. Read More

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http://dx.doi.org/10.12890/2018_000961DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6346806PMC
November 2018
1 Read

Application of Sr/ Rb generator in neurooncology.

Brain Behav 2019 Feb 6:e01212. Epub 2019 Feb 6.

Russian Research Center of Radiology and Surgical Technologies (RRCRST) of Ministry of Public Health, Saint-Petersburg, Russia.

Introduction: The applicability of "Rubidium Chloride, Rb from Generator" radiopharmaceutical for brain tumors (BT) diagnostics is demonstrated on the basis of the application experience of the radiopharmaceutical in neurooncology.

Experimental: A total of 21 patients with various brain tumors and nonneoplastic abnormal brain masses were investigated.

Results And Discussions: The results of the imaging and differential diagnostics of malignant and benign tumors, nonneoplastic abnormal brain masses and lesions revealed the prevalence of high uptake of the radiopharmaceutical in the malignant tumors in comparison with benign glioma and arteriovenous malformations in which Rb-chloride accumulates in the vascular phase but does not linger further. Read More

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http://dx.doi.org/10.1002/brb3.1212DOI Listing
February 2019

[Immediate outcomes of microsurgical treatment of cerebral arteriovenous malformations in non-hemorrhagic patients].

Zh Vopr Neirokhir Im N N Burdenko 2018 ;82(6):30-37

Burdenko Neurosurgical Institute, Moscow, Russia.

Arteriovenous malformations (AVMs) are some of the most frequent congenital abnormalities of the cerebral vascular system and usually occur at a young age. Given the fact that AVMs can manifest, in addition to hemorrhages, as symptomatic epilepsy (17-40%) that occurs more often at a young age and may lead to significant disability, investigation of this pathology remains topical. Particular attention has recently been paid to the management of AVM patients without clinical signs of hemorrhage at the time of pathology diagnosis. Read More

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http://dx.doi.org/10.17116/neiro20188206130DOI Listing
January 2018

Cerebral revascularization in cerebral proliferative angiopathy: a systematic review.

Neurosurg Focus 2019 Feb;46(2):E11

1Section of Neurosurgery and.

OBJECTIVECerebral proliferative angiopathy (CPA) is considered a discrete vascular malformation of the brain separate from classical brain arteriovenous malformations (AVMs). It has unique angiographic characteristics and has been hypothesized to result from chronic cortical ischemia and perinidal oligemia. Treatment with cerebral revascularization has been proposed in an attempt to disrupt regional hypoperfusion and interrupt the angiogenesis that defines CPA. Read More

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http://dx.doi.org/10.3171/2018.11.FOCUS18529DOI Listing
February 2019

A Case of Pleomorphic Xanthoastrocytoma with Intracranial Hemorrhage in a Child.

NMC Case Rep J 2019 Jan 18;6(1):39-42. Epub 2018 Dec 18.

Department of Neurological Surgery, Nihon University School of Medicine, Tokyo, Japan.

Intracranial hemorrhage associated with lower grade glioma is unusual. Furthermore, pleomorphic xanthoastrocytoma (PXA) with intracranial hemorrhage, especially in a children, is extremely rare. We report here a rare case of child PXA with intracranial hemorrhage. Read More

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https://www.jstage.jst.go.jp/article/nmccrj/6/1/6_cr.2018-01
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http://dx.doi.org/10.2176/nmccrj.cr.2018-0174DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6350034PMC
January 2019
3 Reads

Mobile device for thrombolysis decisions for telestroke.

Colomb Med (Cali) 2018 Dec 30;49(4):254-260. Epub 2018 Dec 30.

Fundación Santa Fe de Bogotá, Hospital Universitario . Bogotá, Colombia.

Aim: This study compares the reliability of brain CT interpretations performed using a diagnostic workstation and a mobile tablet computer in a telestroke context.

Methods: A factorial design with 1,452 interpretations was used. Reliability was evaluated using the Fleiss' kappa coefficient on the agreements of the interpretation results on the lesion classification, presence of imaging contraindications to the intravenous recombinant tissue-type plasminogen activator (t-PA) administration, and on the Alberta Stroke Program Early CT Score (ASPECTS). Read More

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http://dx.doi.org/10.25100/cm.v49i4.3921DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6342084PMC
December 2018
1 Read

Intervening nidal brain parenchyma and risk of radiation-induced changes after radiosurgery for brain arteriovenous malformation: a study using unsupervised machine learning algorithm.

World Neurosurg 2019 Jan 21. Epub 2019 Jan 21.

Biomedical Electronics Translational Research Center, National Chiao Tung University, Hsin-Chu, Taiwan; Institute of Electronics, National Chiao Tung University, Hsinchu, Taiwan. Electronic address:

Objective: To assess the sensitivity and specificity of arteriovenous malformation (AVM) nidal component identification and quantification using unsupervised machine learning algorithm, and to evaluate the association between intervening nidal brain parenchyma and radiation-induced changes (RICs) after stereotactic radiosurgery (SRS).

Methods: Fully automated segmentation via unsupervised classification with fuzzy c-means clustering was used to analyze AVM nidus on T2-weighted magnetic resonance imaging. The proportions of vasculature, brain parenchyma, and cerebrospinal fluid (CSF) were quantified. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750193010
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http://dx.doi.org/10.1016/j.wneu.2018.12.220DOI Listing
January 2019
3 Reads

Arterial-spin labeling MRI identifies residual cerebral arteriovenous malformation following stereotactic radiosurgery treatment.

J Neuroradiol 2019 Jan 15. Epub 2019 Jan 15.

Department of Radiology, Neuroimaging and Neurointervention Division, Stanford University Hospital, 300, Pasteur Drive, Stanford, CA 94305, US.

Background And Purpose: Brain arteriovenous malformation (AVM) treatment by stereotactic radiosurgery (SRS) is effective, but AVM obliteration following SRS may take two years or longer. MRI with arterial-spin labeling (ASL) may detect brain AVMs with high sensitivity. We determined whether brain MRI with ASL may accurately detect residual AVM following SRS treatment. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S01509861183037
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http://dx.doi.org/10.1016/j.neurad.2018.12.004DOI Listing
January 2019
5 Reads

Acute Infarction in the Artery of Percheron Distribution during Cerebral Angiography: A Case Report and Literature Review.

J Radiol Case Rep 2018 Jul 31;12(7):1-9. Epub 2018 Jul 31.

Department of Neurosurgery, National Taiwan University Hospital, Taipei, ROC.

Improvements in techniques, contrast agents, and catheter design have significantly decreased angiography-related neurological deficits and complications. This article reports a case involving an angiographic total obliteration arteriovenous malformation (AVM) in a patient with an acute infarction in the artery of Percheron (AOP) distribution following angiography. Furthermore, imaging of an AOP acute infarction in cerebral angiography is presented. Read More

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http://www.radiologycases.com/index.php/radiologycases/artic
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http://dx.doi.org/10.3941/jrcr.v12i7.3318DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6311177PMC
July 2018
3 Reads

Myelopathy due to intracranial dural arteriovenous fistula with perimedullary venous drainage: clinical and medico-legal aspects in a case of diagnostic pitfall.

World Neurosurg 2019 Jan 10. Epub 2019 Jan 10.

Department of Legal and Forensic Medicine, University of Genova, Via De Toni 12, Genova, 16132, Italy. Electronic address:

Background: An intracranial dural arteriovenous fistula (DAVF) consists of a meshwork of arteriovenous shunts. Drainage of the fistula may be into a dural sinus or directly into cortical veins. Rarely, DAVFs drain exclusively into perimedullary veins. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.12.150DOI Listing
January 2019

Synchronous cerebral arteriovenous malformation and lung adenocarcinoma carcinoma brain metastases: A case study and literature review.

Neurochirurgie 2019 Jan 9. Epub 2019 Jan 9.

Department of Surgery, Division of Neurosurgery, University of Connecticut Health, Farmington, Connecticut, 06032, USA. Electronic address:

Introduction: While there are numerous published cases of arteriovenous malformations (AVMs) developing in the setting of malignancy, it is extremely rare to find them concurrently associated in the brain.

Clinical Case: This is the case of a 55-year-old male who presented to the emergency department complaining of headaches, memory and visual changes. Neuro-imaging revealed a right temporal parietal AVM and an adjoining hyperenhancing occipitotemporal lobe lesion with concern for a possible evolving stroke. Read More

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http://dx.doi.org/10.1016/j.neuchi.2018.07.003DOI Listing
January 2019
1 Read

Cerebral arteriovenous malformations - usability of Spetzler-Martin and Spetzler-Ponce scales in qualification to endovascular embolisation and neurosurgical procedure.

Pol J Radiol 2018 29;83:e243-e247. Epub 2018 May 29.

Department of Radiology and Nuclear Medicine, Medical University of Silesia, Katowice, Poland.

Purpose: Arteriovenous malformations (AVMs) are connected with cerebral haemorrhage, seizures, increased intracranial pressure, headaches, mass effect, and ischaemia symptoms. Selection of the best treatment method or even deciding if intervention is required can be difficult.

Material And Methods: The study included 50 patients who were diagnosed with cerebral AVMs and treated in our Centre between 2008 and 2014. Read More

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http://dx.doi.org/10.5114/pjr.2018.76750DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6323595PMC
May 2018
1 Read

Massive Arteriovenous Malformation with Stroke-Like Presentation.

Case Rep Neurol 2018 Sep-Dec;10(3):332-337. Epub 2018 Nov 30.

Intensive Care Unit, Department of Anaesthesiology, Bürgerspital Solothurn, Solothurn, Switzerland.

We report of a 75-year-old patient with stroke-like presentation, where cerebral imaging led to the diagnosis of a massive arteriovenous malformation (AVM) of the whole left hemisphere. We suggest considering AVM as a differential diagnosis in patients with symptoms of acute stroke despite age and, in the absence of contraindications, in this setting to obtain MRI or CT angiography of the brain. Read More

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http://dx.doi.org/10.1159/000494466DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6323398PMC
November 2018

Ruptured cerebral arteriovenous malformation during fifth pregnancy: A case report and literature review.

World Neurosurg 2019 Jan 3. Epub 2019 Jan 3.

Department of Neuroendovascular Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan.

Background: Whether the risk of rupture of a cerebral arteriovenous malformation (AVM) increases during pregnancy remains controversial. Moreover, it is unclear whether the number of pregnancies correlates with AVM rupture risk. We report a case of ruptured AVM during the fifth pregnancy. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.12.130DOI Listing
January 2019
1 Read

A theory for polymicrogyria and brain arteriovenous malformations in HHT.

Neurology 2019 Jan;92(1):34-42

From the Department of Medical Imaging (J.M.K., L.C., S.M., T.K.), Division of Respirology (M.E.F.) and Department of Paediatrics (F.R.), Department of Medicine, and Division of Neurosurgery (T.K.), Department of Surgery, University of Toronto; Division of Neuroradiology (J.M.K., L.C., S.M., T.K.), Toronto Western Hospital, University Health Network, Canada; Departments of Radiology and Pathology (J.M.), University of Utah School of Medicine, Salt Lake City; Toronto HHT Centre, Division of Respirology, Department of Medicine, and Li Ka Shing Knowledge Institute (M.E.F.), St. Michael's Hospital, Toronto; and Division of Respiratory Medicine (F.R.), the Hospital for Sick Children, Toronto, Canada.

Hereditary hemorrhagic telangiectasia (HHT) is generally considered a disorder of endothelial dysfunction, characterized by the development of multiple systemic arteriovenous malformations (AVMs), including within the brain. However, there have recently been a number of reports correlating HHT with malformations of cortical development, of which polymicrogyria is the most common type. Here we present 7 new cases demonstrating polymicrogyria in HHT, 6 of which demonstrate a brain AVM (bAVM) in close spatial proximity, with the aim of providing a common origin for the association. Read More

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http://dx.doi.org/10.1212/WNL.0000000000006686DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6336165PMC
January 2019
11 Reads
8.286 Impact Factor

Characterization of Endothelial Cilia Distribution During Cerebral-Vascular Development in Zebrafish ( Danio rerio).

Arterioscler Thromb Vasc Biol 2018 Dec;38(12):2806-2818

Division of Neonatology, Department of Pediatrics (S.P., P.M.S., R.R.), Medical College of Wisconsin, Milwaukee.

Objective- Endothelial cells (ECs) sense and respond to flow-induced mechanical stress, in part, via microtubule-based projections called primary cilia. However, many critical steps during vascular morphogenesis occur independent of flow. The involvement of cilia in regulating these stages of cranial vascular morphogenesis is poorly understood because cilia have not been visualized in primary head vessels. Read More

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http://Insights.ovid.com/crossref?an=00043605-900000000-9622
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http://dx.doi.org/10.1161/ATVBAHA.118.311231DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6309420PMC
December 2018
4 Reads

Uptake and radiological findings of screening cerebral magnetic resonance scans in patients with hereditary haemorrhagic telangiectasia.

Intractable Rare Dis Res 2018 Nov;7(4):236-244

NHLI Cardiovascular Sciences, Imperial College London, London, UK.

Hereditary haemorrhagic telangiectasia (HHT) results in arteriovenous malformations (AVMs), most commonly in the lungs, liver and brain. Discussion of cerebral vascular malformations is an important element of patient management. The current study objectives were to examine uptake and results of screening cerebral magnetic resonance (MR) scans, excluding symptomatic patients requiring neurological investigations. Read More

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http://dx.doi.org/10.5582/irdr.2018.01103DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6290842PMC
November 2018
1 Read

Proceedings of the 2018 next-generation Gamma Knife research meeting.

J Neurosurg 2018 Dec;129(Suppl1):5-9

7Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Ontario, Canada.

In order to determine what areas of research are a clinical priority, a small group of young Gamma Knife investigators was invited to attend a workshop discussion at the 19th International Leksell Gamma Knife Society Meeting. Two areas of interest and the need for future radiosurgical research involving multiple institutions were identified by the young investigators working group: 1) the development of additional imaging sequences to guide the understanding, treatment, and outcome tracking of diseases such as tremor, radiation necrosis, and AVM; and 2) trials to clarify the role of hypofractionation versus single-fraction radiosurgery in the treatment of large lesions such as brain metastases, postoperative cavities, and meningiomas. Read More

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http://dx.doi.org/10.3171/2018.7.GKS181206DOI Listing
December 2018

Integration of rotational angiography enables better dose planning in Gamma Knife radiosurgery for brain arteriovenous malformations.

J Neurosurg 2018 Dec;129(Suppl1):17-25

Departments of1Neurosurgery and.

OBJECTIVEIn Gamma Knife radiosurgery (GKS) for arteriovenous malformations (AVMs), CT angiography (CTA), MRI, and digital subtraction angiography (DSA) are generally used to define the nidus. Although the AVM angioarchitecture can be visualized with superior resolution using rotational angiography (RA), the efficacy of integrating RA into the GKS treatment planning process has not been elucidated.METHODSUsing data collected from 25 consecutive patients with AVMs who were treated with GKS at the authors' institution, two neurosurgeons independently created treatment plans for each patient before and after RA integration. Read More

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http://dx.doi.org/10.3171/2018.7.GKS181565DOI Listing
December 2018

Vis-à-vis: a focus on genetic features of cerebral cavernous malformations and brain arteriovenous malformations pathogenesis.

Neurol Sci 2019 Feb 6;40(2):243-251. Epub 2018 Dec 6.

Department of Biomedical and Dental Science and Morphological and Functional Images, University of Messina, Consolare Valeria street 1, 98125, Messina, Italy.

Cerebrovascular malformations include a wide range of blood vessel disorders affecting brain vasculature. Neuroimaging differential diagnosis can result unspecific due to similar phenotypes of lesions and their deep localization. Next-generation sequencing (NGS) platforms simultaneously analyze several hundreds of genes and can be applied for molecular distinction of different phenotypes within the same disorder's macro-area. Read More

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http://dx.doi.org/10.1007/s10072-018-3674-xDOI Listing
February 2019
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Congenital pial AVF along the falx cerebri with complete agenesis of the corpus callosum and bilateral parasagittal pachygyria-polymicrogyria secondary to chronic ischemia.

Childs Nerv Syst 2018 Dec 11. Epub 2018 Dec 11.

Department of Diagnostic Imaging, National University Health System, 1E Kent Ridge Rd, Singapore, 119228, Singapore.

Objective: Pial arteriovenous fistula (AVF) is an extremely rare entity due to direct arterial connection with the venous plexus without an intervening capillary network. The objective of this article is to describe a unique case of congenital pial AVF along the interhemispheric falx with complete callosal agenesis and malformation of cortical development within the bilateral anterior cerebral artery territories. We also demonstrated the distinctive feature of temporal stability of the extensive intracranial abnormalities without active intervention. Read More

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http://dx.doi.org/10.1007/s00381-018-4019-zDOI Listing
December 2018
1 Read

Does eloquence subtype influence outcome following arteriovenous malformation surgery?

J Neurosurg 2018 Oct 1:1-8. Epub 2018 Oct 1.

1Department of Neurological Surgery, Barrow Neurological Institute, Phoenix, Arizona; and.

OBJECTIVEAlthough numerous arteriovenous malformation (AVM) grading scales consider eloquence in risk assessment, none differentiate the types of eloquence. The purpose of this study was to determine if eloquence subtype affects clinical outcome.METHODSThis is a retrospective review of a prospectively collected clinical database of brain AVMs treated with microsurgery in the period from 1997 to 2017. Read More

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http://dx.doi.org/10.3171/2018.4.JNS18403DOI Listing
October 2018
1 Read

Single-stage planning for total cure of grade III-V brain arteriovenous malformations by embolization alone or in combination with microsurgical resection.

Neuroradiology 2019 Feb 28;61(2):195-205. Epub 2018 Nov 28.

Department of Neurosurgery, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey.

Purpose: There are no established guidelines for treatment of Spetzler-Martin grade III-V brain arteriovenous malformations (bAVMs). The purpose of this study is to report our institutional experience in total obliteration/eradication of grade III-V bAVMs by single-stage planning of embolization combined with microsurgical resection when necessary.

Methods: All patients harboring Spetzler-Martin (S-M) grade III-V bAVMs treated with single-stage planning between January 2006 and January 2018 were retrospectively reviewed. Read More

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http://dx.doi.org/10.1007/s00234-018-2140-zDOI Listing
February 2019
6 Reads

Spetzler-Martin grade IV and V arteriovenous malformations: Treatment outcomes and risk factors for negative outcomes after surgical resection.

J Clin Neurosci 2018 Nov 15. Epub 2018 Nov 15.

Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, PR China; China National Clinical Research Center for Neurological Diseases, Beijing, PR China; Center of Stroke, Beijing Institute for Brain Disorders, Beijing, PR China; Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, PR China.

Objective: Microsurgical resection may be recommended for high grade brain arteriovenous malformations (BAVMs) (HBAVMs) in individualized patients. Careful case selection is necessary to minimize postoperative complications. The aim of this study was to determine the surgical outcomes in patients with HBAVMs and to identify their risk factors associated with postoperative negative outcomes. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S09675868183127
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http://dx.doi.org/10.1016/j.jocn.2018.10.101DOI Listing
November 2018
14 Reads

Vagal Nerve Palsy After Transarterial Embolization of Transverse-Sigmoid Dural Arteriovenous Fistula Using Onyx.

J Stroke Cerebrovasc Dis 2019 Feb 10;28(2):464-469. Epub 2018 Nov 10.

Department of Neurosuragery, Stroke Center, Kokura Memorial Hospital, Japan. Electronic address:

Objective: We report a case of a 70-year-old man who developed a transverse-sigmoid dural arteriovenous fistula (TS-DAVF) that was successfully treated by transarterial embolization (TAE) with Onyx.

Case Presentation: The patient presented with sudden and progressive disturbance of consciousness and left hemiparesis. Magnetic resonance imaging (MRI) revealed venous infarction and hemorrhagic changes with brain swelling in the right parietal lobe. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S10523057183060
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http://dx.doi.org/10.1016/j.jstrokecerebrovasdis.2018.10.023DOI Listing
February 2019
14 Reads

Left Transsylvian-Transinsular Approach for Radiation-Induced Cavernous Malformation: 3-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2018 Nov 8. Epub 2018 Nov 8.

Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona.

De novo cavernous malformation (CM) formation after radiation therapy for brain tumors is well known, but CM formation adjacent to a radiosurgically treated arteriovenous malformation (AVM) is rare.1 This video demonstrates the microsurgical resection of a de novo CM adjacent to a previously treated high-grade AVM and clipping of a middle cerebral artery (MCA) aneurysm. A 70-yr-old male with history of radiosurgery for AVM presented with aphasia and confusion. Read More

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https://academic.oup.com/ons/advance-article/doi/10.1093/ons
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http://dx.doi.org/10.1093/ons/opy357DOI Listing
November 2018
9 Reads

A Pial Arteriovenous Fistula in Infancy as the Presenting Manifestation of Hereditary Hemorrhagic Telangiectasia.

World Neurosurg 2019 Feb 1;122:322-325. Epub 2018 Nov 1.

Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.

Background: Pial arteriovenous fistulas (PAVFs) are rare, accounting for 1.6%-4.7% of all intracranial vascular malformations. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183244
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http://dx.doi.org/10.1016/j.wneu.2018.10.146DOI Listing
February 2019
15 Reads

Pediatric Congenital Cerebrovascular Anomalies.

J Neuroimaging 2018 Oct 31. Epub 2018 Oct 31.

Department of Interventional Radiology, Sanford Aberdeen Clinic, Aberdeen, SD.

Congenital cerebrovascular anomalies in the pediatric age group are myriad with diverse etiologies. The purpose of this paper is to provide an imaging overview of congenital vascular malformations and vascular tumors, as these conditions are varied and the characteristic vascular abnormality may even suggest the underlying systemic condition in helping to guide further management. For example, the identification of an arterial anomaly such as agenesis/hypoplasia/duplication may warrant further evaluation for an associated syndrome. Read More

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http://doi.wiley.com/10.1111/jon.12575
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http://dx.doi.org/10.1111/jon.12575DOI Listing
October 2018
16 Reads

Visualizing artery-specific blood flow patterns above the circle of Willis with vessel-encoded arterial spin labeling.

Magn Reson Med 2019 Mar 25;81(3):1595-1604. Epub 2018 Oct 25.

Wellcome Centre for Integrative Neuroimaging, FMRIB Division, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom.

Purpose: To establish the feasibility of using vessel-encoded pseudocontinuous arterial spin labeling (VEPCASL) for noninvasive vascular territory imaging (VTI) and artery-specific dynamic angiography of a large number of arterial branches above the circle of Willis within a clinically feasible scan time.

Methods: 3D time-of-flight angiography was used to select a labeling plane and establish 7 pairs of encoding cycles. These were used for VEPCASL VTI and dynamic 2D angiography (8 min and 3 min acquisition times, respectively) in healthy volunteers, allowing the separation of signals arising from 13 arterial branches (including extracranial arteries) in postprocessing. Read More

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http://doi.wiley.com/10.1002/mrm.27507
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http://dx.doi.org/10.1002/mrm.27507DOI Listing
March 2019
9 Reads

Transcatheter occlusion of complex pulmonary arteriovenous malformations in a cyanotic child.

J Cardiol Cases 2018 Aug 28;18(2):65-69. Epub 2018 May 28.

Department of Paediatrics and Adolescent Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China.

This case report presents a 16-month-old boy with isolated mild cyanosis diagnosed to have complex pulmonary arteriovenous malformations. Three-dimensional computed tomography with volume rendering has provided the diagnosis, enabled detailed imaging, and facilitated transcatheter device occlusion of the complex arteriovenous malformations by vascular plugs and coils. Magnetic resonance of the brain revealed associated dural arteriovenous malformation. Read More

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http://dx.doi.org/10.1016/j.jccase.2018.04.007DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6149609PMC
August 2018
1 Read

Intracranial Venous Reflux Caused by Occlusion of the Brachiocephalic Vein Mimicking Dural Arteriovenous Fistula.

World Neurosurg 2018 Dec 26;120:438-441. Epub 2018 Sep 26.

Department of Neurology, Myongji Hospital, Hanyang University College of Medicine, Goyang-si, Republic of Korea. Electronic address:

Background: High signal intensity of cerebral venous sinuses on magnetic resonance angiography (MRA) indicates high flow of shunt from arterial blood, suggesting dural arteriovenous fistula (dAVF). Herein, we describe the cases of 2 patients with intracranial venous reflux caused by brachiocephalic vein occlusion (BVO) mimicking dAVF on MRA.

Case Description: Case 1 was a 71-year-old woman who had received arteriovenous graft (AVG) surgery for hemodialysis and presented with headache. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.09.116DOI Listing
December 2018
10 Reads
2.420 Impact Factor

Development of pseudo-subarachnoid hemorrhage secondary to hypoxic-ischemic injury due to bleeding pulmonary arterio-venous malformation.

BMC Neurol 2018 Sep 28;18(1):157. Epub 2018 Sep 28.

Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia.

Background: The computed tomography (CT) finding of a pseudo-subarachnoid hemorrhage (SAH) may lead the treating physician into a diagnostic dilemma. We present a case of a pseudo-SAH in a patient with post-resuscitative encephalopathy, secondary to a newly diagnosed bleeding pulmonary arterio-venous malformation (AVM).

Case Presentation: A 19-year-old female presented acutely with massive hemoptysis. Read More

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http://dx.doi.org/10.1186/s12883-018-1161-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6161445PMC
September 2018
2 Reads

Aneurysmal dilation of the vein of Galen and straight sinus with resultant obstructive hydrocephalus.

BMJ Case Rep 2018 Sep 27;2018. Epub 2018 Sep 27.

Hematology Oncology, University of Arizona Medical Center, Tucson, Arizona, USA.

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http://dx.doi.org/10.1136/bcr-2018-226742DOI Listing
September 2018

Results of Endovascular-First Approach for Treatment of Scalp Arteriovenous Malformations and the Effect of Simplified Angiographic Classification in Therapeutic Decision-Making and Outcomes.

World Neurosurg 2019 Jan 24;121:e277-e286. Epub 2018 Sep 24.

Achuta Menon Center for Health Science Studies, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, India. Electronic address:

Background: Scalp arteriovenous malformation (SAVM) is primarily treated by surgery and reports on endovascular treatment are scarce. We report the results of an endovascular-first approach in the treatment of SAVM. We also have proposed a simple dichotomized classification using the angiographically determined morphology findings and discussed its effect on therapeutic decision-making and outcomes. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183213
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http://dx.doi.org/10.1016/j.wneu.2018.09.092DOI Listing
January 2019
10 Reads

Application of Awake Surgery for Epilepsy in Clinical Practice.

Neurol Med Chir (Tokyo) 2018 Oct 21;58(10):442-452. Epub 2018 Sep 21.

Department of Neurosurgery, Nagoya University School of Medicine.

Epilepsy surgery aims to control epilepsy by resecting the epileptogenic region while preserving function. In some patients with epileptogenic foci in and around functionally eloquent areas, awake surgery is implemented. We analyzed the surgical outcomes of such patients and discuss the clinical application of awake surgery for epilepsy. Read More

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http://dx.doi.org/10.2176/nmc.oa.2018-0122DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6186762PMC
October 2018
6 Reads

A Worst-Case Scenario-Undiagnosed Ruptured Arteriovenous Malformation Managed with Limited Resources.

World Neurosurg 2018 Dec 21;120:430-434. Epub 2018 Sep 21.

Department of Neurosurgery, Maharaja Agrasen Medical College, Agroha, India.

Background: Treatment of arteriovenous malformations (AVMs) is currently performed at specialized neurosurgical centers well equipped with microscopes with green filters, neurosurgical catheterization laboratories, and experienced neurosurgical teams. Patients in whom AVMs are diagnosed at smaller hospitals should be referred to such specialized centers. This case report describes the unavoidable worst-case scenario of an emergency unplanned surgical excision of an undiagnosed ruptured AVM with large hematoma. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.09.068DOI Listing
December 2018
1 Read
2.417 Impact Factor

Optimizing contrast-enhanced cone-beam CT protocol to facilitate simultaneous visualization of neurovascular pathologies and surrounding structures of interest.

Interv Neuroradiol 2018 Sep 19:1591019918800216. Epub 2018 Sep 19.

1 Department of Neurosurgery, Baylor College of Medicine, Houston, USA.

Objective Contrast-enhanced cone-beam computed tomography (CBCT) imaging is commonly used for evaluating neurovascular stents and their relationship to the parent artery or vascular pathologies such as arteriovenous malformations (AVMs) and dural arteriovenous fistulas (dAVFs) in the context of surrounding anatomical structures. The purpose of this study was to understand the effects of varying concentrations of contrast medium used in CBCT imaging for optimal visualization of various endovascular devices and anatomical pathologies. Methods Thirty-five patients with various neurovascular pathologies were included in the study. Read More

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http://dx.doi.org/10.1177/1591019918800216DOI Listing
September 2018
2 Reads

Cervical Myelopathy Caused by Intracranial Dural Arteriovenous Fistula with Acute Worsening After Steroid Administration.

World Neurosurg 2018 Dec 12;120:328-330. Epub 2018 Sep 12.

Department of Neurosurgery, West China Hospital of Sichuan University, The First People's Hospital of Yibin, Sichuan, PR China. Electronic address:

Intracranial dural arteriovenous fistulas (DAVFs) draining into the perimedullary venous system are rare and potentially life-threatening lesions often presenting as a myelopathy. The early and proper diagnosis of this rare disease is challenging because the symptoms are nonspecific. Acute clinical deterioration in patients with spinal DAVFs treated with steroid administration has been described. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.09.029DOI Listing
December 2018
4 Reads

Treatment Strategy of a Patient With a Brain Arteriovenous Malformation and Cranial Dural Fistula: 2-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2018 Sep 6. Epub 2018 Sep 6.

Department of Neurological Surgery, Mayo Clinic, Phoenix, Arizona.

We present the case of a 56-yr-old right-handed male, after informed consent was obtained, who presented with acute confusion and agitation, on the background of a remote history of an uncomplicated resection of a left parietal grade 2 glioma. Imaging revealed a large, acute right temporal intracerebral hemorrhage (ICH). Standard vascular workup for the cause of the ICH included catheter angiography. Read More

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http://dx.doi.org/10.1093/ons/opy208DOI Listing
September 2018
2 Reads

The Real Impact of an Intraoperative Magnetic Resonance Imaging-Equipped Operative Theatre in Neurovascular Surgery: The Sapienza University Experience.

World Neurosurg 2018 Dec 27;120:190-199. Epub 2018 Aug 27.

A.O.U. "Sant'Andrea", Neurosurgery Division, NESMOS Department, Sapienza University, Rome, Italy. Electronic address:

The fundamental role of technological instruments in contemporary Neurosurgery is undisputed, and intraoperative magnetic resonance imaging (MRI) represents one of the best examples. The use of a modern high-field magnet and the possibility to match the MRI with an operative microscope and an integrated neuronavigation system has led to successful results in the surgical treatment of different diseases. At our institute, we have performed surgery routinely with the aid of intraoperative MRI over the last 15 years. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.08.124DOI Listing
December 2018
1 Read

Resolution of bulbar and spinal symptoms postcranial dural arteriovenous fistula embolisation.

BMJ Case Rep 2018 Aug 27;2018. Epub 2018 Aug 27.

Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan, USA.

Dural arteriovenous fistulas (DAVF) are uncommon lesions. Multiple classification systems have been proposed to attempt to describe these lesions. We describe the case of a patient with a dorsal epidural DAVF that, while cerebral in origin, presented with classic spinal DAVF symptoms. Read More

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http://dx.doi.org/10.1136/bcr-2018-224505DOI Listing
August 2018
11 Reads

Snaring of a Glued Microcatheter During Embolization of an Arteriovenous Malformation with N-Butyl Cyanoacrylate.

World Neurosurg 2018 Dec 24;120:343-348. Epub 2018 Aug 24.

Department of Radiology, Neurovascular Section, University Hospital Rigshospitalet, Copenhagen, Denmark; Department of Radiology, Baylor College of Medicine, Houston, Texas, USA. Electronic address:

Background: Microcatheter entrapment during embolization of brain arteriovenous malformations (AVMs) represents a potentially harmful technical complication. Although several techniques have been reported for endovascular catheter retrieval from an Onyx cast, such methods have never been demonstrated with acrylic glues. We report a case of removal of a glued microcatheter from an N-butyl cyanoacrylate (NBCA) cast using a microsnare. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183190
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http://dx.doi.org/10.1016/j.wneu.2018.08.120DOI Listing
December 2018
21 Reads

Growth of Thrombosed Cerebral Venous Varix Following Resection of Cerebral Arteriovenous Malformation: Case Report with Pathologic Consideration.

World Neurosurg 2018 Nov 23;119:274-277. Epub 2018 Aug 23.

Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan.

Background: Varix of the drainage route can spontaneously develop thrombosis and disappear after the treatment of the associated cerebral arteriovenous malformation (AVM). We report a rare case in which a thrombosed cerebral venous varix of the drainage route exhibited growth despite complete resection of the associated cerebral AVM.

Case Description: A 46-year-old man was diagnosed with an AVM in the left temporal lobe. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.08.072DOI Listing
November 2018
4 Reads

Spontaneous Regression of a True Intracanalicular Fusiform Ophthalmic Artery Aneurysm After Endovascular Treatment of an Associated Dural Arteriovenous Fistula.

World Neurosurg 2018 Nov 14;119:362-365. Epub 2018 Aug 14.

Department of Neurosurgery, National Institute of Neurosurgical Sciences Dr Asenjo, University of Chile, Santiago, Chile.

Background: Ophthalmic trunk aneurysms associated with other vascular malformations are extremely rare, and little is known regarding its natural history and options of treatment.

Case Description: We present the interesting case of a 51-year-old man who was admitted with progressive visual loss secondary to a concurrent fusiform ophthalmic trunk aneurysm associated with a dural arteriovenous fistula. He was treated with transarterial embolization of the fistulous point. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.08.018DOI Listing
November 2018
15 Reads

Macular ganglion cells alteration in a patient with left homonymous hemianopia subsequent to surgical excision of an arteriovenous malformation.

Am J Ophthalmol Case Rep 2018 Dec 1;12:9-14. Epub 2018 Aug 1.

Ophthalmology Unit, Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy.

Purpose: To report the case of a 57 years old woman who showed a macular ganglion cell complex (GCC), that is a combination of ganglion cell layer and inner plexiform layer, and peripapillary Retinal Nerve Fiber Layer (pRNFL) thickness reduction in association with left homonymous hemianopia subsequent to surgical excision of an arteriovenous malformation in the cerebral right occipital lobe 37 years before.

Observations: One patient with left homonymous hemianopia due to surgical excision of an arteriovenous malformation in the right cerebral occipital lobe came to our attention for transient blurred vision.Measurement of the GCC and pRNFL thickness was performed using spectral domain optical coherence tomography (SDOCT; Cirrus HD-OCT model 400). Read More

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http://dx.doi.org/10.1016/j.ajoc.2018.07.009DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6085272PMC
December 2018
10 Reads

Neuroimaging abnormalities in patients with Cowden syndrome: Retrospective single-center study.

Neurol Clin Pract 2018 Jun;8(3):207-213

Departments of Clinical Genomics (RD), Neurology (RD, ABP), and Radiology (Division of Neuroradiology) (LSH, JMH), Mayo Clinic, Phoenix, AZ; Department of Radiology (Division of Neuroradiology) (SMW), Mayo Clinic, Jacksonville, FL; and Department of Radiology (Division of Neuroradiology) (CPW), Mayo Clinic, Rochester, MN.

Background: We retrospectively reviewed the neuroimaging findings of patients with Cowden syndrome and determined their frequency in a single cohort.

Methods: Electronic medical records were queried from January 1999 to January 2017 to identify patients who fit the clinical criteria for diagnosis of Cowden syndrome with or without a documented mutation. Patients with brain MRI examinations were then identified. Read More

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http://dx.doi.org/10.1212/CPJ.0000000000000463DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6075984PMC
June 2018
20 Reads

Reimagining ARUBA: Theoretical Optimization of the Treatment of Unruptured Brain Arteriovenous Malformations.

J Stroke Cerebrovasc Dis 2018 Nov 6;27(11):3100-3107. Epub 2018 Aug 6.

Department of Neurology, Loyola University Chicago. Stritch School of Medicine. Maywood, IL; Neuroendovascular Surgery Program, Loyola University Medical Center, Maywood, IL. Electronic address:

Background And Purpose: The results of the A Randomized Trial of Unruptured Brain Arteriovenous (ARUBA) study, indicating that conservative medical management of unruptured brain arteriovenous malformations (UBAVM) is superior to interventional therapy, have generated debates that have hampered their application into clinical practice. Irrespectively of study conclusions, it seems reasonable to explore how much better interventional therapy would have to be to become competitive with conservative medical management.

Methods: We conducted an exploratory analysis to replicate the original data from ARUBA. Read More

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http://dx.doi.org/10.1016/j.jstrokecerebrovasdis.2018.07.007DOI Listing
November 2018
1 Read

Pipeline Embolization Device with Shield Technology for Intracranial Aneurysms: An Initial U.S. Experience.

World Neurosurg 2018 Nov 1;119:10-14. Epub 2018 Aug 1.

Department of Neurosurgery, Geisinger, Danville, Pennsylvania, USA.

Background: Thromboembolic complications remain a major reason for morbidity and mortality after flow diversion, in addition to hemorrhagic complications not limited to the brain predicated on the prolonged need for dual antiplatelet therapy. Surface modification to decrease thrombogenicity and accelerate aneurysm occlusion is a promising alteration to mitigate those risks. The Pipeline embolization device with Shield Technology possesses such characteristics; however, it has not yet been approved in the United States. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183168
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http://dx.doi.org/10.1016/j.wneu.2018.07.203DOI Listing
November 2018
22 Reads

Novel Use of Pipeline Stent Device After Inadvertent Microcatheter Rupture During Arteriovenous Fistula Embolization.

World Neurosurg 2018 Nov 30;119:345-348. Epub 2018 Jul 30.

Department of Neurosurgery, LSU-HSC, Shreveport, Louisiana, USA.

Background: Onyx, a liquid embolic agent, is the mainstay of embolization treatment of arteriovenous malformation or arteriovenous fistula. Microcatheter retention in an embolic cast is a well-known complication. Rupture of catheter with spillage of onyx is a rare phenomenon but can lead to potential occlusion of the parent vessel. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.07.171DOI Listing
November 2018
8 Reads

Cerebral Arteriovenous Malformation Associated with a Cyst.

J Neurosci Rural Pract 2018 Jul-Sep;9(3):420-422

Department of Neurosurgery, LTMMC and LTMG Hospital, Mumbai, Maharashtra, India.

An 11-year-old child presented with chronic occipital headache and vomiting. Computed tomography (CT) scan revealed a cystic mass lesion in the right occipital region. Magnetic resonance imaging brain revealed a cystic mass lesion which was hypointense on T1-weighted images and hyperintense on T2-weighted images. Read More

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http://dx.doi.org/10.4103/jnrp.jnrp_534_17DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6050771PMC