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Source: Journal of Stroke and Cerebrovascular Diseases
Procedure: Angiography
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Total 337 results found since Jan 2013.
Assessment of Arterial Collateralization and Its Relevance to Intra-arterial Therapy for Acute Ischemic Stroke
Evidence from recent randomized controlled studies comparing intra-arterial (IA) therapy with intravenous tissue plasminogen activator highlighted the mismatch between recanalization success and clinical outcomes in patients presenting with acute ischemic stroke. There is emerging interest in the impact of arterial collateralization, as determined by leptomeningeal anastomoses (LMAs), on the treatment outcomes of IA therapy. The system of LMA constitutes the secondary network of cerebral collateral circulation apart from the Circle of Willis. Both anatomic and angiographic studies confirmed significant interindividual vari...
Source: Journal of Stroke and Cerebrovascular Diseases - April 18, 2013 Category: Neurology Authors: Siva Seeta Ramaiah, Peter Mitchell, Richard Dowling, Bernard Yan Tags: Review Articles Source Type: research
Relationship Between Magnetic Resonance Angiography–Diffusion-weighted Imaging Mismatch and Clinical Outcome in Endovascular Treatment for Acute Ischemic Stroke: Subgroup Analysis of the Recovery by Endovascular Salvage for Cerebral Ultra-acute Embolism–Japan Registry
Background: The presence or absence of the penumbra area is important when performing reperfusion therapy in patients with acute ischemic stroke. As a predictor of this penumbra area, magnetic resonance angiography (MRA)–diffusion-weighted imaging (DWI) mismatch is attracting attention. The usefulness of MRA–DWI mismatch (MDM) using the DWI–Alberta Stroke Program Early Computed Tomography Score (ASPECTS) in endovascular treatment (EVT) of patients with cerebral large vessel occlusion was evaluated.Methods: Of 1442 patients registered in the Recovery by Endovascular Salvage for Cerebral Ultra-acute Embolism–Japan Re...
Source: Journal of Stroke and Cerebrovascular Diseases - March 31, 2014 Category: Neurology Authors: Ichiro Deguchi, Tomohisa Dembo, Shinichi Yoshimura, Nobuyuki Sakai, Yasushi Okada, Kazuo Kitagawa, Kazumi Kimura, Toshio Hyogo, Hiroshi Yamagami, Yusuke Egashira, Norio Tanahashi Tags: Original Articles Source Type: research
Noncardiogenic Stroke Patients with Metabolic Syndrome Have More Border-zone Infarction and Intracranial Artery Stenosis
Little is known about the clinical character of stroke patients with metabolic syndrome (MetS) in Chinese population. In this hospital-based cross-sectional study, we elucidated the prevalence of MetS among patients with acute noncardiogenic cerebral infarction from south China, the topographic infarction patterns in magnetic resonance imaging, and vascular angiography findings of stroke patients with MetS.
Source: Journal of Stroke and Cerebrovascular Diseases - January 2, 2015 Category: Neurology Authors: Zheng Zhang, Meijuan Xiao, Zusen Ye, Wanli Zhang, Bin Han, Youcheng Li Source Type: research
Frequency of New Pulmonary Neoplasm Incidentally Detected by Computed Tomography Angiography in Acute Stroke Patients—A Single-Center Study
Incidental findings of suspect lung opacities are common in computed tomography (CT)–based thorax examinations, especially in high-risk patients, such as stroke patients. Screening with CT of the thorax has detected lung cancer in approximately .31%-1.20% of high-risk populations. The aim of the present study was to report the frequency of suspect lung opacities on routine acute stroke imaging.
Source: Journal of Stroke and Cerebrovascular Diseases - March 25, 2015 Category: Neurology Authors: Line Bentsen, Anders Christensen, Inger Havsteen, Hanne Hansen, Christian Ovesen, Hanne Christensen Source Type: research
A Case of Recurrent Ischemic Stroke Involving Subacute, Progressive Intracranial Cerebral Arterial Sclerosis Prior to Diagnosis with -mutated Polycythemia Vera
A 58-year-old man presenting with no vascular risk factors visited our hospital with right hemiparesis and total aphasia. Diffusion-weighted magnetic resonance imaging of the brain showed multiple hyperintensities in watershed distributions in the left hemisphere. Magnetic resonance angiography (MRA) revealed stenosis of the middle cerebral artery, despite normal MRA findings 2 months prior. One year after the first stroke, the patient experienced a recurrent ischemic stroke involving the left anterior choroidal artery, pulmonary embolism, and deep venous thrombosis.
Source: Journal of Stroke and Cerebrovascular Diseases - September 29, 2015 Category: Neurology Authors: Tomohisa Nezu, Shiro Aoki, Kazuhide Ochi, Sayaka Sugihara, Tetsuya Takahashi, Naohisa Hosomi, Hirofumi Maruyama, Masayasu Matsumoto Tags: Case Studies Source Type: research
Congenital Spinal Malformation and Stroke: Aneurysmal Dilatations and Bilateral Rotational Vertebral Artery Occlusion
A 30-year-old woman suffered from acute vertebrobasilar stroke. Cranial tomography (CT) scans showed multiple vertebral abnormalities suggestive of congenital spine malformation, and angiographic CT revealed aneurysmal dilatations (ADs) at segment V2 of both vertebral arteries (VAs). Dynamic neuroimaging tests including angiography and angio-CT were performed and showed occlusion of both VAs at the point of the ADs with contralateral rotation of the neck. The presence of a bony structure causing the artery compression was excluded and embolic phenomena originating at the AD was proposed as the likely source of stroke.
Source: Journal of Stroke and Cerebrovascular Diseases - December 8, 2015 Category: Neurology Authors: Patricia de la Riva, Maria Teresa Martínez-Zabaleta, Edurne Pardo, Nicolás Samprón, Elisabet Mondragón-Rezola, Maialen Arruti González, Jose Ángel Larrea, José Félix Martí-Massó Tags: Case Studies Source Type: research
Prevalences of Peripheral Arterial Disease Diagnosed by Computed Tomography Angiography in Patients with Acute Ischemic Stroke
Few studies have examined the prevalence of peripheral arterial disease (PAD) with the use of computed tomography angiography (CTA) in patients with acute ischemic stroke (AIS), although several reports have examined its prevalence using an ankle brachial index (ABI). We aimed to determine the prevalence of PAD indicated by CTA in patients with AIS and to clarify the prevalence of PAD in each clinical ischemic stroke subtype.
Source: Journal of Stroke and Cerebrovascular Diseases - February 22, 2016 Category: Neurology Authors: Hiroyuki Naito, Hiromitsu Naka, Megumi Kobayashi, Yuhei Kanaya, Kasane Naito, Takashi Kurashige, Hiroshi Tokinobu, Masayasu Matsumoto Source Type: research
Computed Tomography Perfusion-Based Decision Making for Acute Ischemic Stroke —Missing the Mismatch
We present a case of an 80-year-old man admitted because of acute ischemic stroke. CT angiography demonstrated left proximal M2 occlusion. As CTP demonstrated signs of large ischemic core with no significant penumbra, mechanical thrombectomy was not performed following tPA administration.
Source: Journal of Stroke and Cerebrovascular Diseases - March 17, 2017 Category: Neurology Authors: J.A. Molad, M. Findler, E. Auriel Tags: Case Studies Source Type: research
Contrast-Induced Nephropathy in Ischemic Stroke Patients Undergoing Computed Tomography Angiography: CINISter Study
Goal: Computed tomography angiography (CTA) is a well-tolerated, noninvasive study of the intracranial vascular circulation; however, contrast-induced nephropathy (CIN) has been reported in 5%-7% of patients undergoing CTA. Limited studies have evaluated the risks of CIN in patients undergoing CTA. Our study was designed to evaluate the prevalence and risk factors for CIN in patients with ischemic stroke who receive a CTA. Materials and Methods: Single-center, nested, case-control study of patients with ischemic stroke who received a CTA between June 18, 2012 and January 1, 2016.
Source: Journal of Stroke and Cerebrovascular Diseases - December 6, 2018 Category: Neurology Authors: Anthony Shaun Rowe, Brandon Hawkins, Leslie A. Hamilton, Andrew Ferrell, Jennifer Henry, Brian F. Wiseman, Steven A. Skovran, Mitra S. Mosadegh, Marion E. Hare, Mehmet Kocak, Elizabeth Tolley Source Type: research
Computational Fluid Dynamics Analysis of Lateral Striate Arteries in Acute Ischemic Stroke Using 7T High-resolution Magnetic Resonance Angiography
Background: Infarcts in the lateral striate artery (LSA) territory can be caused by several pathological changes, including lipohyalinosis and microatheroma. However, fluid dynamic effects on these changes remain unknown. Thus, we investigated whether the fluid dynamic metrics of the LSAs were altered in patients with acute ischemic stroke using computational fluid dynamics (CFD) analysis. Methods: Fifty-one patients with acute ischemic stroke confined in the basal ganglia and/or corona radiata underwent high-resolution magnetic resonance angiography (HR-MRA) at 7T.
Source: Journal of Stroke and Cerebrovascular Diseases - August 23, 2019 Category: Neurology Authors: Futoshi Mori, Fujimaro Ishida, Tatsunori Natori, Haruna Miyazawa, Hiroyuki Kameda, Taisuke Harada, Kunihiro Yoshioka, Fumio Yamashita, Ikuko Uwano, Kenji Ito, Makoto Sasaki Source Type: research
The Value of Whole-Brain Perfusion Parameters Combined with Multiphase Computed Tomography Angiography in Predicting Hemorrhagic Transformation in Ischemic Stroke
Objective: To explore the value of whole-brain perfusion parameters combined with multiphase computed tomography angiography (MP-CTA) in predicting the hemorrhagic transformation (HT) of ischemic stroke. Methods: A total of 64 patients with ischemic stroke who underwent noncontrast computed tomography, computed tomography perfusion imaging, and computed tomography angiography before treatment from August 2017 to June 2019 were included retrospectively. The perfusion parameters cerebral blood volume (CBV), cerebral blood flow (CBF), time to peak (TTP), mean transit time (MTT), time to maximum (Tmax), and permeability surfac...
Source: Journal of Stroke and Cerebrovascular Diseases - February 13, 2020 Category: Neurology Authors: Xiang Li, Huan Liu, Wenbing Zeng, Xinghua Liu, Yun Wen, Qiuxia Xiong, Ran Yang Source Type: research
Intracranial Vessel Wall MRI in Cryptogenic Stroke and Intracranial Vasculitis
Introduction: Intracranial vasculopathies easily elude classic stroke work-up. We aim in this work to show that vessel wall-MRI could prove an efficient alternative to digital subtraction angiography for the diagnosis of intracranial vasculopathies by identifying intracranial arterial vessel walls anomalies and contrast enhancement, suggestive of angiitis of the central nervous system. Materials and methods: Clinical and imaging characteristics of stroke patients diagnosed with primary angiitis of the central nervous system based on vessel wall-MRI were retrospectively reviewed and the clinical and imaging features of angi...
Source: Journal of Stroke and Cerebrovascular Diseases - March 5, 2020 Category: Neurology Authors: Virginie Destrebecq, Niloufar Sadeghi, Boris Lubicz, Lise Jodaitis, Noemie Ligot, Gilles Naeije Source Type: research
Interactive effect of susceptibility-diffusion mismatch and recanalization status on clinical outcome in large vessel occlusion stroke
Objective: To investigate the interactive effect of susceptibility-diffusion mismatch and recanalization status on clinical outcome in patients with acute ischemic stroke due to large vessel occlusion.Methods: In this prospective study, consecutive ischemic stroke patients admitted within 24 h from symptom onset underwent emergency multimodal MRI at admission, including diffusion-weighted imaging (DWI), susceptibility-weighted imaging (SWI), and time-of-flight magnetic resonance angiography (TOF-MRA).
Source: Journal of Stroke and Cerebrovascular Diseases - August 15, 2020 Category: Neurology Authors: Haifei Jiang, Yiqun Zhang, Jiangxia Pang, Han-Cheng Qiu, Ao-Fei Liu, Chen Li, Ji Zhou, Min Jin, Fengyuan Man, Wei-Jian Jiang Source Type: research
The clinical value of head-neck joint high-resolution vessel wall imaging in ischemic stroke
Imaging of intracranial vasculature is an important aspect of the workup for patients with stroke, transient ischemic attack (TIA), or suspected cerebrovascular disease1. In clinical setting, brain magnetic resonance imaging (MRI) plus intracranial three-dimensional time-of-flight magnetic resonance angiography (3D TOF MRA) is one of the most widely used imaging packages for patients who were suspected of ischemic stroke. Recently, high resolution intracranial vessel wall imaging (IVWI) , which is capable of exhibiting intracranial lesions directly including identifying the etiologies of intracranial stenosis, evaluating p...
Source: Journal of Stroke and Cerebrovascular Diseases - August 15, 2020 Category: Neurology Authors: Ming-Li Li, Qian-Qian Lin, Yi-Tong Liu, Bo Hou, Feng Feng, Zheng-Yu Jin, Wei-Hai Xu Source Type: research
Asymmetry of medullary veins on multiphase CT-angiography in patients with acute ischemic stroke
The management of acute ischemic stroke (AIS) has rapidly evolved over the last decade with the advancement in neuroimaging selection methods and endovascular treatment techniques. CT perfusion (CTP) with automated post-processing is the most widely used technique for extended-time window selection of patients for intra-arterial interventions based on recent clinical trials.1,2 CTP provides predictive information about stroke outcome, however the predictive ability remains moderate with area under the curve (AUC) approximately 0.6.
Source: Journal of Stroke and Cerebrovascular Diseases - August 11, 2020 Category: Neurology Authors: A.A. Drozdov, R. Javan, C.R. Leon Guerrero, A.D. Sparks, M.R. Taheri Source Type: research
