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Source: Journal of Stroke and Cerebrovascular Diseases
Procedure: Perfusion

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Total 144 results found since Jan 2013.

Crossed Cerebellar Diaschisis Detected by Arterial Spin-Labeled Perfusion Magnetic Resonance Imaging in Subacute Ischemic Stroke
Conclusions: With advantages in easy acquisition and no radiation, ASL-MRI seems to be an ideal tool for the detection and follow-up of CCD.
Source: Journal of Stroke and Cerebrovascular Diseases - September 1, 2014 Category: Neurology Authors: Shuai Chen, Min Guan, Hao-Jun Lian, Li-Jia Ma, Jun-Kui Shang, Shuang He, Ming-Ming Ma, Mi-Lan Zhang, Zi-Yuan Li, Mei-Yun Wang, Da-Peng Shi, Jie-Wen Zhang Tags: Original Articles Source Type: research

Value of Whole Brain Computed Tomography Perfusion for Predicting Outcome After TIA or Minor Ischemic Stroke
About 15% of patients with transient ischemic attack (TIA) or minor ischemic stroke have functional impairment after 3 months. We studied the role of whole brain computed tomography perfusion (WB-CTP) in the emergency diagnosis of TIA or minor stroke in predicting disability at 3 months.
Source: Journal of Stroke and Cerebrovascular Diseases - July 2, 2015 Category: Neurology Authors: Ido R. van den Wijngaard, Ale Algra, Geert J. Lycklama à Nijeholt, Jelis Boiten, Marieke J.H. Wermer, Marianne A.A. van Walderveen Source Type: research

Influence of Recanalization and Time of Cerebral Ischemia on Tissue Outcome after Endovascular Stroke Treatment on Computed Tomography Perfusion
The Alberta Stroke Program Early Computed Tomography Score (ASPECTS) has been proposed as a straightforward alternative to the less reliable visual estimation of tissue at risk. We evaluated the association between admission ASPECTS on computed tomography perfusion (CTP) parameter maps and final infarct ASPECTS in patients with acute ischemic stroke who were treated by endovascular therapy (eT) and compared the results with thrombolysis candidates treated conservatively.
Source: Journal of Stroke and Cerebrovascular Diseases - July 14, 2015 Category: Neurology Authors: Anselm Angermaier, Alexander V. Khaw, Michael Kirsch, Christof Kessler, Soenke Langner Source Type: research

Feasibility and Safety of Using External Counterpulsation to Augment Cerebral Blood Flow in Acute Ischemic Stroke—The Counterpulsation to Upgrade Forward Flow in Stroke (CUFFS) Trial
Background: External counterpulsation (ECP) increases perfusion to a variety of organs and may be helpful for acute stroke. Methods: We conducted a single-blinded, prospective, randomized controlled feasibility and safety trial of ECP for acute middle cerebral artery (MCA) ischemic stroke. Twenty-three patients presenting within 48 hours of symptom onset were randomized into one of two groups. One group was treated with ECP for 1 hour at a pressure of up to 300 mmHg (“full pressure”). During the procedure, we also determined the highest possible pressure that would augment MCA mean flow velocity (MFV) by 15%.
Source: Journal of Stroke and Cerebrovascular Diseases - September 5, 2015 Category: Neurology Authors: Kama Z. Guluma, David S. Liebeskind, Rema Raman, Karen S. Rapp, Karin B. Ernstrom, Andrei V. Alexandrov, Reza B. Shahripour, Kristian Barlinn, Sidney Starkman, Ileana D. Grunberg, Thomas M. Hemmen, Brett C. Meyer, Anne W. Alexandrov Source Type: research

A Simple Geometric Assessment of Perfusion Lesion Volume at Hyperacute Stage of Ischemic Stroke in Patients with Symptomatic Steno-Occlusion of Major Cerebral Arteries and Risk of Subsequent Cerebral Ischemic Events
Our objective is to elucidate the association of baseline perfusion lesion volume on perfusion-weighted magnetic resonance imaging (PWI) obtained at hyperacute stage of ischemic stroke with subsequent cerebral ischemic events (SIEs) in patients with symptomatic steno-occlusion of major cerebral arteries. Using a prospective stroke registry database, patients arriving within 24 hours of onset with symptomatic steno-occlusion of major supratentorial cerebral arteries were identified. On baseline PWI, time-to-peak lesion volume (TTP-LV) was determined by a simple geometric method and dichotomized into the highest tertile (la...
Source: Journal of Stroke and Cerebrovascular Diseases - October 14, 2015 Category: Neurology Authors: Jihoon Kang, Cheolkyu Jung, Nayoung Kim, Yoo Ri Son, Byungse Choi, Jae-Hyoung Kim, Ji Sung Lee, Juneyoung Lee, Jun Lee, Myung Suk Jang, Mi Hwa Yang, Moon-Ku Han, Hee-Joon Bae Source Type: research

Distinctive Patterns of Three-Dimensional Arterial Spin-Labeled Perfusion Magnetic Resonance Imaging in Subtypes of Acute Ischemic Stroke
Ischemic penumbra in acute ischemic stroke (AIS) can be evaluated using arterial spin-labeled (ASL) perfusion magnetic resonance imaging (MRI). We used three-dimensional ASL-MRI to examine patients with different stroke subtypes and the clinical utility of the method within 24 hours of AIS onset.
Source: Journal of Stroke and Cerebrovascular Diseases - April 20, 2016 Category: Neurology Authors: Naoto Kohno, Kazunori Okada, Shingo Yamagata, Hiroyuki Takayoshi, Shuhei Yamaguchi 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

External Counterpulsation Increases Beat-to-Beat Heart Rate Variability in Patients with Ischemic Stroke
External counterpulsation (ECP) is a noninvasive method used to augment cerebral perfusion in ischemic stroke. However, the response of beat-to-beat heart rate variability (HRV) in patients with ischemic stroke during ECP remains unknown.
Source: Journal of Stroke and Cerebrovascular Diseases - April 7, 2017 Category: Neurology Authors: Li Xiong, Ge Tian, Li Wang, Wenhua Lin, Xiangyan Chen, Thomas Wai Hong Leung, Yannie Oi Yan Soo, Lawrence Ka Sing Wong Source Type: research

Perfusion Deficits and Association with Clinical Outcome in Patients with Anterior Choroidal Artery Stroke
This study aims to determine the frequency of perfusion abnormalities in AChA stroke and association with clinical outcome.
Source: Journal of Stroke and Cerebrovascular Diseases - April 27, 2017 Category: Neurology Authors: Saeed A. Alqahtani, Marie Luby, Zurab Nadareishvili, Richard T. Benson, Amie W. Hsia, Richard Leigh, John K. Lynch Source Type: research

Reduced Ischemic Lesion Growth with Heparin in Acute Ischemic Stroke
Objective: The role of heparin in acute ischemic stroke is controversial. We investigated the effect of heparin on ischemic lesion growth. Methods: Data were analyzed on nonthrombolyzed ischemic stroke patients in whom diffusion-weighted imaging (DWI)/perfusion-weighted imaging (PWI) MRI was performed less than 12hours of last known well and showed a PWI-DWI lesion mismatch, and who underwent follow-up neuroimaging at least 4days after admission. Lesion growth was assessed by (1) absolute lesion growth and (2) percentage mismatch lost (PML).
Source: Journal of Stroke and Cerebrovascular Diseases - March 28, 2019 Category: Neurology Authors: Eva A. Rocha, Ruijun Ji, Hakan Ay, Zixiao Li, Ethem Murat Arsava, Gisele S. Silva, Alma Gregory Sorensen, Ona Wu, Aneesh B. Singhal Source Type: research

Impaired Cerebrovascular Autoregulation in Large Vessel Occlusive Stroke after Successful Mechanical Thrombectomy: A Prospective Cohort Study
Introduction: Successful thrombectomy improves morbidity and mortality after stroke. The present prospective, observational cohort study investigated a potential correlation between the successful restoration of tissue perfusion by mechanical thrombectomy and intact cerebrovascular autoregulation (CA). Objective: Status of CA in patients with large vessel occlusive stroke after thrombectomy. Methods: After thrombectomy CA was measured using transcranial Doppler ultrasound. For this purpose a moving correlation index (Mxa) based on spontaneous arterial blood pressure fluctuations and corresponding cerebral blood flow veloci...
Source: Journal of Stroke and Cerebrovascular Diseases - January 1, 2020 Category: Neurology Authors: Marco Meyer, Martin Juenemann, Tobias Braun, Ingo Schirotzek, Christian Tanislav, Kristin Engelhard, Patrick Schramm 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

Hemichorea as Presentation of Acute Cortical Ischemic Stroke. Case Series and Review of the Literature
We report 4 cases of acute ischemic cortical strokes presenting as hemichorea, with the infarction being limited to the parietal and insular cortex in perfusion computed tomography scans and magnetic resonance imaging.
Source: Journal of Stroke and Cerebrovascular Diseases - August 11, 2020 Category: Neurology Authors: Álvaro Carbayo, Jordi Sarto, Daniel Santana, Yaroslau Compta, Xabier Urra Source Type: research

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