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Source: Journal of Stroke and Cerebrovascular Diseases
Procedure: CT Scan
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Total 317 results found since Jan 2013.
Infratentorial developmental venous anomaly concurrent with a cavernoma and dural arteriovenous fistula
A 32-year-old woman underwent a head computed tomography scan after a traffic accident. A calcification in the left cerebellar hemisphere was disclosed. She did not complain of any symptoms, but neurological examination revealed cerebellar ataxia. She did not have any preceding episodes since birth, such as acute-onset headache. Magnetic resonance imaging showed past hemorrhage of the calcification lesion suggestive of a cerebellar cavernoma. A dilated vascular structure was also observed (Fig. 1A, B).
Source: Journal of Stroke and Cerebrovascular Diseases - July 14, 2022 Category: Neurology Authors: Hirokuni Hashikata, Yoshinori Maki, Ryota Ishibashi, Masanori Goto, Hiroki Toda Tags: Case Report Source Type: research
Does thrombus imaging characteristics predict the degree of recanalisation after endovascular thrombectomy in acute ischaemic stroke?
Identification of computed tomography (CT) thrombus imaging characteristics can predict the degree of recanalization and outcome after endovascular thrombectomy (EVT) in patients with acute ischaemic stroke and large vessel occlusion.
Source: Journal of Stroke and Cerebrovascular Diseases - July 6, 2022 Category: Neurology Authors: Harikrishnan Ramachandran, Sachin Girdhar, Sapna Erat Sreedharan, Jayadevan Enakshy Rajan, Santhosh Kumar Kannath, Jissa Vinoda Thulaseedharan, Sajith Sukumaran, P.N. Sylaja Source Type: research
Endovascular Revascularization of Multi Segment Chronically Occluded ICA
This case report describes a novel endovascular method for treating chronically occluded internal carotid artery (COICA). The patient is a 55-year-old male with vascular risk factors who presented to an outside institution with right-sided weakness and dysarthria, was diagnosed as having a stroke, and discharged with medical management. The patient's symptoms failed to improve throughout the week prompting him to visit another outside institution, where computed tomography (CT) angiography showed bilateral occlusion of the ICAs at their origins extending intracranially.
Source: Journal of Stroke and Cerebrovascular Diseases - May 14, 2022 Category: Neurology Authors: Nicholas Mulchan, Phillip Yeun, Jennifer Frontera, Jeffrey Farkas, Ketevan Berekashvili, Matthew Sanger, Jose Torres, Ambooj Tiwari Tags: Case Report Source Type: research
Endovascular Thrombectomy Reduces Risk of Poor Functional Outcomes in Patients Presenting within 0-6 Hours with Large Ischemic Core Volumes on Computed Tomography Perfusion
Large vessel occlusion (LVO) stroke patients presenting with large ischemic core volumes (LICVs) on acute imaging have worse outcomes compared to those with smaller ischemic core volumes1 However, endovascular thrombectomy (EVT), compared with medical management (MM), may still be beneficial in this population according to a meta-analysis of patient-level data from early window randomized thrombectomy trials1 and a systematic review of patients presenting with LICVs on computed tomography (CT) or computed tomography perfusion (CTP)2
Source: Journal of Stroke and Cerebrovascular Diseases - May 11, 2022 Category: Neurology Authors: Rahul R. Karamchandani, Hongmei Yang, Tanushree Prasad, Dale Strong, Jeremy B. Rhoten, Gary Defilipp, Jonathan Clemente, William R. Stetler, Joe Bernard, Andrew W. Asimos Source Type: research
Hypoperfusion Intensity Ratio is Associated with Stroke Mechanism in Patients Undergoing Mechanical Thrombectomy
Hypoperfusion Intensity Ratio (HIR), defined as Tmax>10s/Tmax>6s on computed tomography perfusion (CTP), and stroke mechanisms have been independently correlated with angiographic collaterals and patient outcomes. Slowly developing atherosclerotic stenosis may foster collateral development, whereas cardioembolic occlusion may occur before collaterals mature. We hypothesized that favorable HIR is associated with large artery atherosclerosis (LAA) stroke mechanism and good clinical outcome.
Source: Journal of Stroke and Cerebrovascular Diseases - May 9, 2022 Category: Neurology Authors: Ahmad A. Ballout, Richard B Libman, Julia R. Schneider, Marc S. Ayoub, Jason J. Wang, Athos Patsalides, Jeffrey M Katz Source Type: research
Late-onset cerebral embolism after transcatheter aortic valve implantation under direct oral anticoagulant therapy
We describe the case of a 92-year-old woman with delayed valve thrombosis causing stroke after TAVI, who developed recurrent strokes eight months after TAVI for severe aortic valve stenosis. Transesophageal echocardiography and cardiac computed tomography revealed a string-like thrombus attached to the implanted valve.
Source: Journal of Stroke and Cerebrovascular Diseases - April 28, 2022 Category: Neurology Authors: Shuhei Egashira, Takeshi Yoshimoto, Junpei Koge, Masafumi Ihara Tags: Case Report Source Type: research
Large Vessel Occlusion Sites Affect Agreement Between Outputs of Three Computed Tomography Perfusion Software Packages
Computed tomography perfusion (CTP) data are important for hyperacute stroke decision making. Available comparisons between outputs of different CTP software packages show variable outcomes. Evaluation for factors associated with agreement between the volume estimates is limited. We assessed for differences in core and penumbra volume estimates of three CTP software packages – AutoMIStar, RAPID, and Vitrea – and analyzed factors associated with agreement between the volume estimates.
Source: Journal of Stroke and Cerebrovascular Diseases - April 13, 2022 Category: Neurology Authors: Peter S.W. Park, Robbie Chan, Channa Senanayake, Stanley Tsui, Alun Pope, Helen M. Dewey, Philip M.C. Choi Source Type: research
The Circulating Biomarker Fractalkine and Platelet-Derived Growth Factor BB are Correlated with Carotid Plaque Vulnerability Assessed by Computed Tomography Angiography
Ischemic cerebrovascular disease is a common and frequently occurring disease in neurology clinics world-wide, approximately 87% of all strokes are ischemic.1,2 Carotid artery stenosis is an independent risk factor for cerebral ischemic diseases.3 Presently, a stroke intervention in patients with carotid plaques depend mainly on the degree of stenosis.4 However, the risk of stroke related to carotid plaques is not only attributed to the flow-reduction from stenotic arteries, but also to the composition of atherosclerotic plaques.
Source: Journal of Stroke and Cerebrovascular Diseases - March 4, 2022 Category: Neurology Authors: Xiaofan Yuan, Guanru Shen, Qingzhe Hu, Hongmei Xiao, Xinyue Qin Source Type: research
Volumetric White Matter Hyperintensity Ranges Correspond to Fazekas Scores on Brain MRI
Leukoaraiosis presents as white matter hyperintensities (WMH) on magnetic resonance (MR) imaging. It is thought to originate from decreased vascular supply to axons with an accompanying loss of axonal integrity. WMH have been found to be more prevalent in older patients, especially in those with neurodegeneration from Alzheimer's disease (AD) or stroke.1-6A visual categorization method named the Fazekas scale was developed in order to compare white matter disease burden on computed tomography scans between patients experiencing normal aging and those with AD.
Source: Journal of Stroke and Cerebrovascular Diseases - February 11, 2022 Category: Neurology Authors: Ariana Andere, Gaurav Jindal, Janine Molino, Scott Collins, Derek Merck, Tina Burton, Christoph Stretz, Shadi Yaghi, Daniel C. Sacchetti, Sleiman El Jamal, Michael E. Reznik, Karen Furie, Shawna Cutting Tags: Short Communication Source Type: research
Late-Onset Vaccine-Induced Immune Thombotic Thrombocytopenia (VITT) with Cerebral Venous Sinus Thrombosis
A previously healthy 42-year-old woman presented to the emergency department with acute onset fluent aphasia. Further clinical examination was unremarkable. Emergency computed tomography (CT) of the head showed two small intracranial hemorrhages of the left temporal lobe and a hyperdense cerebral sinus. CT venogram confirmed cerebral venous sinus thrombosis (CVST) of the left vein of Labb é and sigmoid and transversal sinus (Fig. 1). As the paramedic reported ChAdOx1 nCOV-19 (AZD1222) vaccination 2 weeks before, vaccine-induced thrombotic thrombocytopenia (VITT) was suspected and the patient was treated with intravenous ...
Source: Journal of Stroke and Cerebrovascular Diseases - January 27, 2022 Category: Neurology Authors: Maruan Saleh, Julian Zimmermann, Nils C. Lehnen, Bernd P ötzsch, Johannes M. Weller Tags: Case Report Source Type: research
Optic Nerve Sheath Diameter Detects Intracranial Hypertension in Acute Malignant Middle Cerebral Artery Infarction
The term “malignant hemispheric cerebral infarction” was initially described in 1996 by Hacke et al.1 as an area of extensive infarction with surrounding cerebral edema. Currently, it is defined as ischemia of more than 50% of the middle cerebral artery (MCA) territory detectable on computed tomography ( CT) and/or magnetic resonance imaging (MRI) of the skull, associated with compatible symptoms.2
Source: Journal of Stroke and Cerebrovascular Diseases - January 12, 2022 Category: Neurology Authors: Breno Douglas Dantas Oliveira, Fabr ício Oliveira Lima, Hellen do Carm Homem, Alice Albuquerque Figueirêdo, Vitoria Maria Batista Freire, Fernanda Martins Maia Carvalho Source Type: research
Diagnostic and Prognostic Blood Biomarkers in Transient Ischemic Attack and Minor Ischemic Stroke: An Up-To-Date Narrative Review
Transient ischemic attack (TIA) is a brief episode of focal neurological deficit, lasting less than 24 hours, and reaching its climax usually within minutes. Patients with an even tiny ischemic brain lesion on imaging are considered, on tissue-based criteria, to have a minor ischemic stroke (MIS), usually with mild and non-disabling symptoms.1 Although a consensus clinical definition for MIS is currently lacking, 5 working definitions based on information from head computed tomography (CT) scan and clinical examination have been developed by the National Institute of Neurological Disorder and Stroke (NINDS) rt-PA stroke study Investigators.
Source: Journal of Stroke and Cerebrovascular Diseases - January 10, 2022 Category: Neurology Authors: Matteo Foschi, Marina Padroni, Samir Abu-Rumeileh, Ahmed Abdelhak, Michele Russo, Lucio D'Anna, Maria Guarino Tags: Review Article Source Type: research
RAPID Software to the Clinical Application Value of Acute Basilar Artery Occlusion with Endovascular Treatment
To investigate the clinical application value of RAPID software based on computed tomography perfusion imaging (CTP) in the endovascular treatment of acute basilar artery occlusion (BAO).
Source: Journal of Stroke and Cerebrovascular Diseases - October 12, 2021 Category: Neurology Authors: Weiling Li, Weijun Hong, En Wang, Yiqing Jiang Source Type: research
Assessment of Impaired Cerebrovascular Reactivity in Chronic Cerebral Ischemia using Intravoxel Incoherent Motion Magnetic Resonance Imaging
The severity of chronic cerebral ischemia can be assessed using cerebrovascular reactivity (CVR) to acetazolamide (ACZ) challenge, which is measured by single-photon emission computed tomography (SPECT); however, this is an invasive method. We investigated whether intravoxel incoherent motion (IVIM) magnetic resonance imaging (MRI) can assess impaired CVR in preoperative patients with chronic cerebral ischemia and compared it to SPECT-CVR.
Source: Journal of Stroke and Cerebrovascular Diseases - September 23, 2021 Category: Neurology Authors: Ikuko Uwano, Masakazu Kobayashi, Kengo Setta, Kuniaki Ogasawara, Fumio Yamashita, Futoshi Mori, Tsuyoshi Matsuda, Makoto Sasaki Source Type: research
Recurrent Transient Neurological Deficit Due to Intracerebral Steal Phenomenon in Association with a Developmental Venous Anomaly
We report a symptomatic developmental venous anomaly (DVA) not causing parenchymal abnormality to provide a pathophysiologic clue in patients with recurrent transient neurologic deficit. A 32-year-old male presented with recurrent transient motor aphasia and headache in the left fronto-temporal region for three years. The symptoms usually lasted for one hour. Brain computed tomography (CT) angiography and magnetic resonance imaging using gradient recalled echo showed a prominent penetrating vein at the left frontal periventricular region.
Source: Journal of Stroke and Cerebrovascular Diseases - August 24, 2021 Category: Neurology Authors: Jean Hee Kim, Hyeyoung Jung, Woojun Kim, Jae Young An Tags: Case Report Source Type: research
