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Source: Journal of Stroke and Cerebrovascular Diseases
Procedure: Perfusion

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Total 144 results found since Jan 2013.

Distance to Thrombus in Acute Middle Cerebral Artery Occlusion Predicts Target Mismatch and Ischemic Penumbra
In patients with occlusion of the middle cerebral artery (MCA) treated by intravenous thrombolysis (IVT), the distance to thrombus (DT) has been proposed as a predictor of outcome. The purpose of the present study was to investigate how DT relates to dynamic susceptibility contrast perfusion metrics.
Source: Journal of Stroke and Cerebrovascular Diseases - November 2, 2015 Category: Neurology Authors: Matthias Gawlitza, Benjamin Friedrich, Carsten Hobohm, Alexander Schaudinn, Stefan Schob, Ulf Quäschling, Karl-Titus Hoffmann, Donald Lobsien Source Type: research

Diffuse Brain Hypoperfusion in Advanced Leukoencephalopathy with Calcifications and Cysts
Leukoencephalopathy with calcifications and cysts (LCC) is an uncommon condition of unknown etiology occurring in children and adults. Pathological findings include obliterative hyalinosis of the small vessels, myelin loss, intense gliosis, Rosenthal fiber formation, microcalcifications, and hemosiderin deposits. Herein we report a 55-year-old man with LCC documented 10 years ago, in whom we examined brain perfusion by pseudocontinuous arterial spin labeling technique. We demonstrated diffused hypoperfusion of the affected white matter (WM) and of the subcortical gray matter (GM) and cortical GM in the patient in compariso...
Source: Journal of Stroke and Cerebrovascular Diseases - May 18, 2016 Category: Neurology Authors: Emanuele Bartolini, Andrea Bianchi, Ilaria Bartolomei, Alessandra Vella, Lapo Sali, Antonio Ciccarone, Fabrizio Salvi, Mario Mascalchi Tags: Case Studies Source Type: research

Arterial Spin-Labeling Magnetic Resonance Perfusion Imaging with Dual Postlabeling Delay in Internal Carotid Artery Steno-occlusion: Validation with Digital Subtraction Angiography
Arterial spin-labeling magnetic resonance perfusion imaging (ASL-MRI) allows noninvasive measurement of cerebral blood flow (CBF) but depends on the arterial transit time (ATT). With the commonly used single postlabeling delay (PLD) of 1.5 seconds, slow flow through collateral vessels may be underestimated. We used both 1.5 and 2.5 seconds to overcome this problem. We validated these PLD settings by measuring the ATT and identifying the angiographic circulation using digital subtraction angiography (DSA).
Source: Journal of Stroke and Cerebrovascular Diseases - June 20, 2016 Category: Neurology Authors: Tomoaki Akiyama, Takato Morioka, Takafumi Shimogawa, Sei Haga, Tetsuro Sayama, Yuka Kanazawa, Kei Murao, Shuji Arakawa Source Type: research

Computed Tomography Perfusion Deficits during the Baseline Period in Aneurysmal Subarachnoid Hemorrhage Are Predictive of Delayed Cerebral Ischemia
Delayed cerebral ischemia (DCI) is a frequent and fearful complication following aneurysmal subarachnoid hemorrhage (aSAH). The aim of this study is to assess the diagnostic accuracy of computed tomography perfusion (CTP) during an admission baseline period for the prediction of DCI.
Source: Journal of Stroke and Cerebrovascular Diseases - October 31, 2016 Category: Neurology Authors: Yuxia Duan, Haoli Xu, Rui Li, Kuikui Zheng, Zilong Hu, Nan Wu, Yunjun Yang, Qichuan Zhuge, Weijian Chen Source Type: research

Assessment of Hemodynamic Compromise Using Computed Tomography Perfusion in Combination with 123I-IMP Single-Photon Emission Computed Tomography without Acetazolamide Challenge Test
In this study, we investigated whether CT perfusion in combination with resting state 123I-IMP SPECT could be used instead of the acetazolamide challenge test to evaluate hemodynamic compromise in patients with atherosclerotic occlusive disease.
Source: Journal of Stroke and Cerebrovascular Diseases - December 5, 2016 Category: Neurology Authors: Atsumu Hashimoto, Takeshi Mikami, Katsuya Komatsu, Shouhei Noshiro, Tohru Hirano, Masahiko Wanibuchi, Nobuhiro Mikuni Source Type: research

Perfusion-weighted MRI parameters for prediction of early progressive infarction in middle cerebral artery occlusion
【Objective】Early progressive infarction (EPI) is frequently observed and related to poor functional outcome in patients with middle cerebral artery (MCA) infarction caused by MCA occlusion. We evaluated the perfusion parameters of magnetic resonance imaging (MRI) as a predictor of EPI.
Source: Journal of Stroke and Cerebrovascular Diseases - March 18, 2017 Category: Neurology Authors: Hoon Kim, Kwang Wook Jo, Seong Rim Kim, Ik Seong Prak, Young Woo Kim Source Type: research

Proximal Bright Vessel Sign on Arterial Spin Labeling Magnetic Resonance Imaging in Acute Cardioembolic Cerebral Infarction
The congestion of spin-labeled blood at large-vessel occlusion can present as hyperintense signals on perfusion magnetic resonance imaging with 3-dimensional pseudo-continuous arterial spin labeling (proximal bright vessel sign). The purpose of this study was to clarify the difference between proximal bright vessel sign and susceptibility vessel sign in acute cardioembolic cerebral infarction.
Source: Journal of Stroke and Cerebrovascular Diseases - April 3, 2017 Category: Neurology Authors: Ayumi Kato, Yuki Shinohara, Keita Kuya, Makoto Sakamoto, Hisanori Kowa, Toshihide Ogawa Source Type: research

Single Subcortical Infarct: Pathomechanism Assessed by Thin-Section Computed Tomography Perfusion
The pathomechanism of a single subcortical infarct (SSI) may be better determined by assessing the perfusion status between parent artery and ischemic lesion. We aimed to compare the classifications into branch atheromatous disease (BAD) versus non-BAD based on diffusion-weighted imaging (DWI) or computed tomography perfusion (CTP), and to test whether a CTP-based classification improves the predicting power for progression in SSI (PSSI) compared to that by DWI.
Source: Journal of Stroke and Cerebrovascular Diseases - April 18, 2017 Category: Neurology Authors: Dong Hoon Shin, Ernst Klotz, Eung Yeop Kim Source Type: research

Computed Tomography Perfusion Abnormalities in Bilateral Thalamic Infarction Due to Artery of Percheron Occlusion
We aimed to report a novel case of hyperacute computed tomography (CT) perfusion imaging abnormalities in artery of Percheron infarction.
Source: Journal of Stroke and Cerebrovascular Diseases - June 7, 2017 Category: Neurology Authors: Adam MacLellan, Karl Boyle Tags: Case Studies Source Type: research

Carotid Endarterectomy Induces the Release of Inflammatory Markers and the Activation of Coagulation as Measured in the Jugular Bulb
Transient cerebral hypoxia may induce neuronal injury through an ischemia –reperfusion (I/R) response, with a subsequent activation of inflammation and coagulation–fibrinolysis. During carotid endarterectomy (CEA), the artery is clamped, which might impair the regional cerebral perfusion and initiate a local I/R response. Data suggest that the CD40–CD40 ligand dyad acts as a modulator in the induced activation. The aim of this study was to locally measure soluble CD40 ligand (sCD40L), in conjunction with inflammation and coagulation activation markers, during CEA.
Source: Journal of Stroke and Cerebrovascular Diseases - June 24, 2017 Category: Neurology Authors: Bjorn Kragsterman, David Bergqvist, Agneta Siegbahn, Hakan Parsson Source Type: research

The Risk of Neurological Dysfunctions after Deep Hypothermic Circulatory Arrest with Retrograde Cerebral Perfusion
Retrograde cerebral perfusion (RCP) is a brain protection technique that is adopted generally for anticipated short periods of deep hypothermic circulatory arrest (DHCA). However, the real impact of this technique on cerebral protection during DHCA remains a controversial issue.
Source: Journal of Stroke and Cerebrovascular Diseases - August 22, 2017 Category: Neurology Authors: Giuseppe Gatti, Bernardo Benussi, Placido Curr ò, Gabriella Forti, Elisabetta Rauber, Alessandro Minati, Marco Gabrielli, Umberto Tognolli, Gianfranco Sinagra, Aniello Pappalardo Source Type: research

Superior Microvascular Perfusion of Infused Liposome-Encapsulated Hemoglobin Prior to Reductions in Infarctions after Transient Focal Cerebral Ischemia
The development of cerebral infarction after transient ischemia is attributed to postischemic delayed hypoperfusion in the microvascular region. In the present study, we assessed the microvascular perfusion capacity of infused liposome-encapsulated hemoglobin (LEH) in a therapeutic approach for transient middle cerebral artery occlusion (tMCAO).
Source: Journal of Stroke and Cerebrovascular Diseases - August 23, 2017 Category: Neurology Authors: Daisuke Shimbo, Takeo Abumiya, Kota Kurisu, Toshiya Osanai, Hideo Shichinohe, Naoki Nakayama, Ken Kazumata, Hideki Nakamura, Hiroshi Shimuzu, Kiyohiro Houkin Source Type: research

Arterial Spin Labeling Cerebral Perfusion Magnetic Resonance Imaging in Migraine Aura: An Observational Study
Changes in cerebral perfusion during migraine with aura (MA) have been assessed mainly using dynamic susceptibility contrast (DSC) magnetic resonance perfusion imaging. A contrast agent-free method to assess these changes would be desirable. We assessed changes in cerebral perfusion during MA using arterial spin labeling (ASL) perfusion magnetic resonance imaging.
Source: Journal of Stroke and Cerebrovascular Diseases - January 10, 2018 Category: Neurology Authors: Marc E. Wolf, Shuhei Okazaki, Philipp Eisele, Christina Rossmanith, Johannes Gregori, Martin Griebe, Matthias G ünther, Achim Gass, Michael G. Hennerici, Kristina Szabo, Rolf Kern Source Type: research

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