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Source: Journal of Stroke and Cerebrovascular Diseases
Procedure: Perfusion
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Total 144 results found since Jan 2013.
Upper Limb Ischemic Postconditioning as Adjunct Therapy in Acute Stroke Patients: A Randomized Pilot
This study aims to observe the clinical effect of upper limb ischemic postconditioning (LIPostC) as an adjunct to treatment with acute stroke patients, possibly due to increased cerebral perfusion.
Source: Journal of Stroke and Cerebrovascular Diseases - September 7, 2018 Category: Neurology Authors: Yuejuan Li, Keke Liang, Long Zhang, Yamei Hu, Yunli Ge, Jianhua Zhao Source Type: research
Thrombectomy for Stroke at 6-24 hours without Perfusion CT Software for Patient Selection
This study aimed to elucidate the efficacy of thrombectomy 6-24 hours after onset in our patient cohort using conventional imaging mismatch.
Source: Journal of Stroke and Cerebrovascular Diseases - December 5, 2018 Category: Neurology Authors: Junya Tsurukiri, Takahiro Ota, Hiroyuki Jimbo, Eitaro Okumura, Keigo Shigeta, Tatsuo Amano, Masayuki Ueda, Yuji Matsumaru, Yoshiaki Shiokawa, Teruyuki Hirano Source Type: research
Transcranial Optical Monitoring of Cerebral Hemodynamics in Acute Stroke Patients during Mechanical Thrombectomy
Introduction: Mechanical thrombectomy is revolutionizing treatment of acute stroke due to large vessel occlusion (LVO). Unfortunately, use of the modified Thrombolysis in Cerebral Infarction score (mTICI) to characterize recanalization of the cerebral vasculature does not address microvascular perfusion of the distal parenchyma, nor provide more than a vascular “snapshot.” Thus, little is known about tissue-level hemodynamic consequences of LVO recanalization. Diffuse correlation spectroscopy (DCS) and diffuse optical spectroscopy (DOS) are promising methods for continuous, noninvasive, contrast-free transcranial monit...
Source: Journal of Stroke and Cerebrovascular Diseases - April 7, 2019 Category: Neurology Authors: Rodrigo M. Forti, Christopher G. Favilla, Jeffrey M. Cochran, Wesley B. Baker, John A. Detre, Scott E. Kasner, Michael T. Mullen, Steven R. Mess é, W. Andrew Kofke, Ramani Balu, David Kung, Bryan A. Pukenas, Neda I. Sedora-Roman, Robert W. Hurst, Omar A. Source Type: research
Comparison of Automated CT Perfusion Softwares in Evaluation of Acute Ischemic Stroke
Background and Purpose: Automated imaging software is integral to decision-making in acute ischemic stroke (AIS) during extended time windows. RAPID software is the most widely used and has been validated in landmark endovascular trials. Olea software is another commercially available and FDA-approved software, but has not been studied in AIS trials. We aimed to compare the diagnostic utility and accuracy of RAPID and Olea in everyday clinical practice outside of a clinical trial. Methods: We analyzed prospectively-collected data from a consecutive cohort of 141 patients with suspected AIS who underwent computed tomography...
Source: Journal of Stroke and Cerebrovascular Diseases - September 24, 2019 Category: Neurology Authors: Yunyun Xiong, Chiwen C. Huang, Marc Fisher, David B. Hackney, Rafeeque A. Bhadelia, Magdy H. Selim Source Type: research
Vascular Hyperintensity on Fluid-Attenuated Inversion Recovery Indicates the Severity of Hypoperfusion in Acute Stroke
Although fluid-attenuated inversion recovery vascular hyperintensities may be frequently seen in acute large-artery ischemic stroke, reports on their prognostic utility had been conflicting due to lack of quantitative evaluation of the perfusion status based on the signal intensity. We hypothesized that greater hyperintensity represents more severe hypoperfusion.
Source: Journal of Stroke and Cerebrovascular Diseases - November 21, 2019 Category: Neurology Authors: Toshiharu Nomura, Kouichirou Okamoto, Hironaka Igarashi, Masato Watanabe, Hitoshi Hasegawa, Makoto Oishi, Yukihiko Fujii Source Type: research
Quantitative collateral assessment evaluated by cerebral blood volume measured by CT perfusion in patients with acute ischemic stroke
The variability in the pre-existing collateral status (CS) is considered an independent determinant of clinical outcomes for patients with acute ischemic stroke (AIS).1,2 Among patients with acute anterior circulation large-vessel occlusion (LVO), those with a highly developed CS have a large area of salvageable brain tissue and respond well to reperfusion therapy (RT).1,3 Therefore, the evaluation of CS is essential in the selection of optimal candidates who would benefit from RT.
Source: Journal of Stroke and Cerebrovascular Diseases - April 17, 2021 Category: Neurology Authors: Sakyo Hirai, Yoji Tanaka, Hirotaka Sato, Koichi Kato, Yongson Kim, Toshihiro Yamamura, Kazutaka Sumita, Toshinari Arai Source Type: research
Agreement and Accuracy of Ischemic Core Volume Evaluated by Three CT Perfusion Software Packages in Acute Ischemic Stroke
To compare the ischemic core volume estimated by CT Perfusion 4D and Vue PACS with that estimated by RAPID software in acute ischemic stroke (AIS).
Source: Journal of Stroke and Cerebrovascular Diseases - June 18, 2021 Category: Neurology Authors: Qin Chen Liu, Zhen Yu Jia, Lin Bo Zhao, Yue Zhou Cao, Gao Ma, Hai Bin Shi, Sheng Liu Source Type: research
Quantifying infarct core volume in ischemic stroke: What is the optimal threshold and parameters of computed tomography perfusion?
Although computed tomography perfusion (CTP) is used to select and guide decision-making processes in patients with acute ischemic stroke, there is no clear standardization of the optimal threshold to predict ischemic core volume accurately. The infarct core volume with a relative cerebral blood flow(rCBF) threshold of
Source: Journal of Stroke and Cerebrovascular Diseases - March 20, 2023 Category: Neurology Authors: Chuluunbaatar Otgonbaatar, Ji Ye Lee, Keun-Hwa Jung, Inpyeong Hwang, Roh-Eul Yoo, Koung Mi Kang, Tae Jin Yun, Seung Hong Choi, Ji-Hoon Kim, Chul-Ho Sohn Source Type: research
Magnetic Resonance Angiography–Diffusion Mismatch Reflects Diffusion–Perfusion Mismatch in Patients with Hyperacute Cerebral Infarction
Conclusions: In hyperacute cerebral infarction within 3 hours after onset, MDM, as compared with CDM, was able to detect DPM with higher sensitivity and specificity. This suggests that MDM is more reflective of DPM.
Source: Journal of Stroke and Cerebrovascular Diseases - October 17, 2011 Category: Neurology Authors: Ichiro Deguchi, Tomohisa Dembo, Takuya Fukuoka, Harmitsu Nagoya, Hajime Maruyama, Yuji Kato, Yasuko Ohe, Yohsuke Horiuchi, Akira Uchino, Norio Tanahashi Tags: Original Articles Source Type: research
The Role of Posturography in Assessing the Process of Rehabilitation in Poststroke Patients —A Case Study
Stroke is one of the most common causes of death and disability both in Poland and around the world. Each year, 250 out of 100,000 people in Europe are diagnosed with a disruption of cerebral perfusion in the form of stroke. In Poland, approximately 65,000-70,000 people are affected each year, with the incidence steadily increasing. Stroke survivors suffer from impaired cognitive and motor functions. Moreover, they exhibit severe gait pattern abnormalities, which together with balance disorders, constitute the main factors increasing the risk of falls in this patient group.
Source: Journal of Stroke and Cerebrovascular Diseases - December 1, 2016 Category: Neurology Authors: Witold Rongies, Bartosz S łomka, Angelika Duczek, Włodzimierz Dolecki Tags: Case Studies Source Type: research
Assessment of Collateral Circulation Using Perfusion CT in Middle Cerebral Artery Thrombectomy-Treated Patients
In recent years, mechanical thrombectomy has become a first-line treatment for stroke with large vessel occlusion. In this type of stroke, leptomeningeal collateral circulation (LMC) provides a vascular network that maintains parenchymal survival until reperfusion is achieved and is considered one of the best predictors of stroke outcome.1 However, LMC studies in thrombectomy-treated patients are less common.2-4
Source: Journal of Stroke and Cerebrovascular Diseases - April 21, 2020 Category: Neurology Authors: Santiago Trillo, Mar ía Carmen Ramos, Clara Aguirre, José Luis Caniego, Eduardo Bárcena, Saima Bashir, Gustavo Zapata-Wainberg, Pilar Alcántara-Miranda, Carolina Díaz-Pérez, Antonio Barbosa, Rafael Manzanares, Álvaro Ximénez-Carrillo, Jesús Garri Source Type: research
Elevated Hypoperfusion Intensity Ratio (HIR) observed in patients with a large vessel occlusion (LVO) presenting in the evening
Circadian variability has been implicated in timing of stroke onset, yet the full impact of underlying biological rhythms on acute stroke perfusion patterns is not known. We aimed to describe the relationship between time of stroke onset and perfusion profiles in patients with large vessel occlusion (LVO).
Source: Journal of Stroke and Cerebrovascular Diseases - May 15, 2023 Category: Neurology Authors: Anirudh Sreekrishnan, Pierre Seners, Nicole Yuen, Jean-Marc Olivot, Michael Mlynash, Maarten G Lansberg, Jeremy J Heit, Sarah Lee, Patrik Michel, Davide Strambo, Alexander Salerno, Jos é Bernardo Escribano Paredes, Emmanuel Carrera, Gregory W Albers Source Type: research
Intensive Blood Pressure–Lowering Treatment in Patients with Acute Lacunar Infarction
Conclusions: Considerable reduction in 24-hour BP levels was attained around day 21. The limit of BP level to which BP can be safely lowered appears to be lower than that was previously considered.
Source: Journal of Stroke and Cerebrovascular Diseases - October 29, 2012 Category: Neurology Authors: Yasumasa Yamamoto, Yoshinari Nagakane, Tomoyuki Ohara, Eijiro Tanaka, Fukiko Morii, Takashi Koizumi, Manabu Muranishi, Hidesato Takezawa Tags: Original Articles Source Type: research
A Mismatch Between the Abnormalities in Diffusion- and Susceptibility-Weighted Magnetic Resonance Imaging May Represent an Acute Ischemic Penumbra with Misery Perfusion
In this study we make the first case report of blunt cervical trauma leading to a stroke, demonstrating the disparity between diffusion-weighted imaging (DWI) and SWI changes, or DWI-SWI mismatch, in the acute ischemic brain. The area of mismatch between a smaller DWI cytotoxic edema and a larger SWI misery perfusion in our patient matured into a complete infarction with time. The DWI-SWI mismatch may signify the presence of an ischemic penumbra, and provide information about viability of the brain tissue at risk of potential infarction if without early reperfusion.
Source: Journal of Stroke and Cerebrovascular Diseases - February 14, 2013 Category: Neurology Authors: Masayuki Fujioka, Kazuo Okuchi, Asami Iwamura, Toshiaki Taoka, Bo K. Siesjö Tags: Case Reports Source Type: research
Mechanisms of early Recurrence in Intracranial Atherosclerotic Disease (MyRIAD): Rationale and design
Intracranial atherosclerotic disease (ICAD) is the most common cause of ischemic stroke with the highest rate of recurrence, despite aggressive medical management. Diverse mechanisms may be responsible for ICAD-related cerebral ischemia, with potential therapeutic implications. Here we present the rationale, design and methods of the Mechanisms of Early Recurrence in Intracranial Atherosclerotic Disease (MyRIAD) study. The aim of MyRIAD is to determine the mechanisms of stroke in ICAD through physiologic imaging biomarkers that evaluate impaired antegrade flow, poor distal perfusion, abnormal vasoreactivity, artery to arte...
Source: Journal of Stroke and Cerebrovascular Diseases - August 11, 2020 Category: Neurology Authors: David S Liebeskind, Shyam Prabhakaran, Nizam Azhar, Edward Feldmann, Iszet Campo-Bustillo, Rajbeer Sangha, Sebastian Koch, Tatjana Rundek, Lauren Ostergren, Marc I. Chimowitz, Jose G. Romano, MyRIAD Investigators Source Type: research
