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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.
Diffusion-weighted Imaging at b1000 for Identifying Intracerebral Hemorrhage: Preliminary Sensitivity, Specificity, and Inter-rater Variability
Conclusions: DW-MRI at b1000 has a diagnostic yield similar to NCCT for detecting ICH and superior to NCCT for detecting IS. Therefore, DW-MRI may be considered as the initial screening tool for imaging patients presenting with focal neurologic symptoms suggestive of stroke.
Source: Journal of Stroke and Cerebrovascular Diseases - May 5, 2014 Category: Neurology Authors: Galina Keigler, Ilan Goldberg, Roni Eichel, John M. Gomori, Jose E. Cohen, Ronen R. Leker Tags: Original Articles Source Type: research
Early Relapsing Calcified Cerebral Embolism
Calcified cerebral emboli are rarely reported, but may be recurrent and devastating. Misdiagnosis at interpretation of initial brain computed tomography (CT) scan may occur in up to 27% of cases. The purpose of this case report was to describe clinical, CT, and CT angiography findings in a 79-year-old woman undergoing early recurrent stroke from calcified cerebral embolism. Neuroradiology should not overlook calcified cerebral embolism, and this confirms the role of CT in the assessment of stroke.
Source: Journal of Stroke and Cerebrovascular Diseases - March 25, 2015 Category: Neurology Authors: Alfonso Cerase, Irene Grazzini Tags: Case Report Source Type: research
Routine 24-Hour Computed Tomography Brain Scan is not useful in stable patients Post Intravenous Tissue Plasminogen Activator
Obtaining a routine computed tomography (CT) brain scan 24 hours after treatment with intravenous tissue plasminogen activator (IV-tPA) is included in the American Heart Association/American Stroke Association acute stroke guidelines. The usefulness of the test in stable patients is not known. We hypothesized that the results of routine, 24-hour post-treatment neuroimaging (CT or magnetic resonance imaging [MRI] brain scans) would not alter the management of clinically stable patients.
Source: Journal of Stroke and Cerebrovascular Diseases - December 8, 2015 Category: Neurology Authors: Mary Guhwe, Queen Utley-Smith, Robert Blessing, Larry B. Goldstein Source Type: research
Do All ASPECT Score Regions have the Same Predictive Power for Functional Outcomes?
ASPECTS (Alberta Stroke Program Early CT Score) is a 10-point topographic CT scan score that has been shown to be a strong prognostic factor in acute ischemic stroke. We investigated whether all ASPECTS regions have the same prognostic value.
Source: Journal of Stroke and Cerebrovascular Diseases - November 28, 2019 Category: Neurology Authors: Dong Hoon Shin, Dong-Jin Shin, Jung-Ryul Kim Source Type: research
Role of Radiological Eye Deviation in Imaging Occult Cases of Acute Large Vessel Occlusion
The recent article from McCluskey et al “Radiological Eye Deviation as a Predictor of Large Vessel Occlusion in Acute Ischaemic Stroke” J of Stroke and Cerebrovasc Dis. 2019; 28:2318-23231 provides valuable information that may lead to early stroke intervention. They found that subjective visual detection of radiographic eye deviation on nonenhanced computed tomography (NECT) brain is strongly associated with large vessel occlusion (LVO). This compelling association may expedite patients for timely angiographic testing and endovascular therapy.
Source: Journal of Stroke and Cerebrovascular Diseases - February 13, 2020 Category: Neurology Authors: Nan N. Jiang, Wei Wu, Crystal Fong, Demetrios J. Sahlas, Ramiro Larrazabal Tags: Letter to the Editor Source Type: research
Use of Middle Cerebral Artery Visualization with Coronal Computed Tomography to Access Target Artery in Mechanical Thrombectomy
We examined whether visualization of the middle cerebral artery (MCA) by coronal images of nonenhanced computed tomography (coronal CT) provides useful preoperative information on the vessel course in the setting of MT. Methods and Results: We retrospectively studied 29 patients with ischemic stroke of the internal carotid artery and MCA occlusion who were admitted to our hospital within 4.5 hours from stroke onset and underwent MT.
Source: Journal of Stroke and Cerebrovascular Diseases - February 21, 2020 Category: Neurology Authors: Yuichiro Ohya, Takeshi Uwatoko, Taichiro Mizokami, Kenichi Matsumoto, Go Hashimoto, Hiroshi Sugimori Source Type: research
Relationship between Hematoma Volume and Motor Impairment in Putaminal Hemorrhage
Purpose: Computed tomography (CT) is used for initial assessment of patients with suspected stroke. Motor outcome prediction using the initial CT image is important for clinical rehabilitation. However, there is inconsistency in the results reported by the few publications on hematoma volume and motor outcomes in patients with putaminal hemorrhage. To clarify the direction of hematoma and relationship between the hematoma volume and motor outcomes in patients with putaminal hemorrhage using an initial CT image, we evaluated the volume of direction of hematoma in 170 patients in the subacute phase after putaminal hemorrhage...
Source: Journal of Stroke and Cerebrovascular Diseases - April 13, 2020 Category: Neurology Authors: Hitoshi Ohnishi, Kotaro Takeda, Makoto Watanabe, Shinichiro Maeshima, Shigeru Sonoda Source Type: research
Iodinated Contrast Extravasation on Post-Revascularization Computed Tomography Mimics Magnetic Resonance Hyperintense Acute Reperfusion Marker: A Case Study
Hyperintense reperfusion marker (HARM) on post-contrast magnetic resonance imaging (MRI) fluid attenuated inversion recovery (FLAIR) represents gadolinium contrast extravasation in the setting of acute ischemic stroke and is a common finding after revascularization therapies. Clinically, it is a marker of blood brain barrier (BBB) disruption, predictor of hemorrhagic transformation, and predictor of poor clinical outcome in ischemic stroke. Here, we describe a case where a patient underwent mechanical thrombectomy and was later found to have evidence of contrast extravasation on CT imaging, in th e same locations found...
Source: Journal of Stroke and Cerebrovascular Diseases - September 16, 2020 Category: Neurology Authors: Justin De Prey, Crystal Yu, Franklin D. Echevarria, Izabella Barreto, John H. Rees, Reordan O. DeJesus, Alexis N. Simpkins Tags: Case Report 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
Single-phase CT angiography predicts ASPECTS decay and may help determine when to repeat CT before thrombectomy
Time is relative in large-vessel occlusion acute ischemic stroke (LVO-AIS). We aimed to evaluate the rate of inter-hospital ASPECTS decay in patients transferred from a primary (PSC) to a comprehensive stroke center (CSC); and to identify patients that should repeat computed tomography (CT) before thrombectomy.
Source: Journal of Stroke and Cerebrovascular Diseases - October 4, 2022 Category: Neurology Authors: Jo ão André Sousa, Ana Rita Machado, Luís Rito-Cruz, Joana Paiva-Simões, Leonor Santos-Martins, Sara Bernardo-Castro, Ana Inês Martins, Ana Brás, Luciano Almendra, Carla Cecília, Cristina Machado, Bruno Rodrigues, Orlando Galego, César Nunes, Rica Source Type: research
Emergent Angioplasty and Stent Placement Recanalization Without Thrombolysis in Acute Middle Cerebral Artery Occlusions
This study evaluated the feasibility, efficacy, and safety of intracranial artery recanalization for acute middle cerebral artery (MCA) occlusion using emergent angioplasty and stent placement without thrombolysis. All patients from a retrospectively collected database who met the inclusion criteria and were treated with an intracranial stent for acute MCA occlusion were included. Treatment comprised angioplasty and stenting without interventional thrombolytic therapy. Recanalization was assessed by angiography immediately after stent placement based on the Thrombolysis in Myocardial Infarction (TIMI) score. Complications ...
Source: Journal of Stroke and Cerebrovascular Diseases - December 12, 2011 Category: Neurology Authors: Xin-Bin Guo, Lai-Jun Song, Sheng Guan Tags: Original Articles Source Type: research
Current Utility of Diagnostic Catheter Cerebral Angiography
Conclusions: Our snapshot of 200 consecutive catheter cerebral angiograms shows that it is used for both primary diagnosis and surveillance in a wide variety of indications. Despite recent imaging trends, diagnostic catheter angiography provides clinically meaningful diagnostic information in enough cases to warrant continued use.
Source: Journal of Stroke and Cerebrovascular Diseases - October 23, 2013 Category: Neurology Authors: Nader Sawiris, Alexander Venizelos, Bichun Ouyang, Demetrius Lopes, Michael Chen Tags: Original Articles Source Type: research
Searching for Salvageable Brain: The Detection of Ischemic Penumbra Using Various Imaging Modalities?
Various imaging modalities are used to identify the ischemic penumbra in patients with acute ischemic stroke. Although single-photon emission computed tomography (CT), perfusion-weighted magnetic resonance imaging (MRI), and perfusion CT are used to evaluate residual cerebral blood flow in the ischemic area, validation of the perfusion threshold for the penumbra has not been established. The ischemic core corresponds generally to areas with early ischemic changes, such as parenchymal hypoattenuation on CT, restricted apparent diffusion coefficient on diffusion-weighted MRI, or very low cerebral blood volume on perfusion C...
Source: Journal of Stroke and Cerebrovascular Diseases - November 18, 2013 Category: Neurology Authors: Teruyuki Hirano Tags: Review Articles Source Type: research
Utility of Early Post-treatment Single-Photon Emission Computed Tomography Imaging to Predict Outcome in Stroke Patients Treated with Intravenous Tissue Plasminogen Activator
It is important to predict the outcome of tissue plasminogen activator (tPA)–treated patients early after the treatment for considering the post-tPA treatment option. We assessed cerebral blood flow (CBF) of tPA-treated patients with single-photon emission computed tomography (SPECT) 1 hour after tPA infusion to predict the patient outcome. Technetium-99m-hexamethylpropyleneamine oxime SPECT was performed in 35 consecutive tPA-treated patients. Asymmetry index, a contralateral-to-ipsilateral ratio of CBF, was calculated to analyze CBF quantitatively. Hypoperfusion or hyperperfusion was defined as a decrease of 25% or mor...
Source: Journal of Stroke and Cerebrovascular Diseases - September 16, 2013 Category: Neurology Authors: Takeo Abumiya, Masahito Katoh, Takuya Moriwaki, Masami Yoshino, Takeshi Aoki, Hiroyuki Imamura, Toshimitsu Aida, Hideo Scichinohe, Naoki Nakayama, Ken Kazumata, Kiyohiro Houkin Tags: Original Articles Source Type: research
Hyperdense Artery Signs—Potential Value in Cerebellar Stroke
I read with great interest the article “Factors Associated with the Misdiagnosis of Cerebellar Infarction” by Masuda et al. Cerebellar strokes are of clinical importance because they can have devastating consequences such as herniation, death, and coma. Furthermore, if diagnosed in time, thrombolytic therapy may be beneficial in selected cases. In their article, the authors state that 75% of the misdiagnosed patients were initially screened with nonenhanced cranial computed tomography (NECCT) that yielded normal results. I would like to present a case that demonstrates a possibility to increase the diagnostic accuracy of NECCT.
Source: Journal of Stroke and Cerebrovascular Diseases - March 5, 2014 Category: Neurology Authors: Ulf R. Jensen-Kondering Tags: Letter to the Editor Source Type: research
