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Condition: Ischemic Stroke
Procedure: SPECT

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Total 209 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

Amyloid Burden, Neuroinflammation, and Links to Cognitive Decline After Ischemic Stroke Topical Reviews
Source: Stroke - August 25, 2014 Category: Neurology Authors: Thiel, A., Cechetto, D. F., Heiss, W.-D., Hachinski, V., Whitehead, S. N. Tags: Behavioral Changes and Stroke, PET and SPECT, Neuroprotectors Topical Reviews Source Type: research

A Case of Bilateral Giant Internal Carotid Artery Aneurysms at the Cavernous Portion Managed by 2-stage Extracranial–Intracranial Bypass with Parent Artery Occlusion: Consideration for Bypass Selection and Timing of Surgeries
In conclusion, high-flow EC-IC bypass with PAO is recommended in the first stage of surgery on a unilaterally symptomatic side to minimize postoperative hemodynamic stress to the contralateral aneurysm. Once the contralateral side becomes symptomatic, second stage EC-IC bypass with PAO, either low-flow or high-flow bypass, is recommended based on the results of balloon test occlusion.
Source: Journal of Stroke and Cerebrovascular Diseases - August 4, 2014 Category: Neurology Authors: Miki Fujimura, Kenichi Sato, Naoto Kimura, Takashi Inoue, Hiroaki Shimizu, Teiji Tominaga Tags: Case Reports Source Type: research

Efficacy of Extracranial–Intracranial Bypass for Progressive Middle Cerebral Artery Occlusion Associated with Active Sjögren's Syndrome: Case Report
Sjögren syndrome affecting the major cerebral arteries is rare, and an optimal therapeutic strategy to counteract such a lesion has not yet been established. We herein report a case of a 39-year-old woman with a history of primary Sjögren syndrome, which had previously been treated with immunosuppressive therapy, manifesting with a crescendo transient ischemic attack because of left middle cerebral artery stenosis. Despite the administration of high doses of prednisolone and azathioprine for active Sjögren syndrome, the frequency of crescendo transient ischemic attacks increased with the progression of stenosis and magn...
Source: Journal of Stroke and Cerebrovascular Diseases - August 4, 2014 Category: Neurology Authors: Hiroyuki Sakata, Miki Fujimura, Kenichi Sato, Hiroaki Shimizu, Teiji Tominaga Tags: Case Reports Source Type: research

Neurocognitive Improvement After Carotid Artery Stenting in Patients With Chronic Internal Carotid Artery Occlusion: A Prospective, Controlled, Single-Center Study
Symptomatic internal carotid artery (ICA) occlusion with hemodynamic impairment remains a dismal disease when untreated. In this prospective, single-center, controlled study, we investigated the feasibility, safety, and long-term outcome of stenting by endovascular recanalization for patients with chronic ICA occlusion. Forty patients with symptomatic chronically occluded ICA were assigned to receive endovascular recanalization (group A, n = 18) or conservative management (group B, n = 22). The primary end point was 100% complete recanalization of the primary occlusion at 60 minutes, and secondary end points were improveme...
Source: Vascular and Endovascular Surgery - April 11, 2014 Category: Surgery Authors: Fan, Y.-L., Wan, J.-Q., Zhou, Z.-W., Chen, L., Wang, Y., Yao, Q., Jiang, J.-Y. Tags: Articles Source Type: research

Intravenous Thrombolysis Resulting In Acute Ischemic Stroke Recanalization Can Lead To Cerebral Hyperperfusion Syndrome (P7.123)
Conclusion- Cerebral hyperperfusion syndrome after intravenous thrombolysis in acute ischemic stroke should be suspected in patients that achieve arterial recanalization and develop unexplained new neuropsychiatric manifestations.Disclosure: Dr. Ong has nothing to disclose. Dr. Yeo has nothing to disclose. Dr. Ting has nothing to disclose. Dr. Sinha has nothing to disclose. Dr. Teoh has nothing to disclose. Dr. Chan has nothing to disclose. Dr. Seet has nothing to disclose. Dr. Sharma has nothing to disclose.
Source: Neurology - April 9, 2014 Category: Neurology Authors: Ong, J., Yeo, L., Ting, E., Sinha, A., Teoh, H. L., Chan, B., Seet, C. S., Sharma, V. Tags: Cerebrovascular Disease and Interventional Neurology: Issues in Acute Stroke Treatment Source Type: research

Combined 18F-FDG PET-CT and DCE-MRI to Assess Inflammation and Microvascularization in Atherosclerotic Plaques Brief Reports
Conclusions— There is a weak but significant positive correlation between inflammation on positron emission tomography/computed tomography and neovascularization as assessed with dynamic contrast–enhanced-MRI. Future studies should investigate which imaging modality has the highest predictive value for recurrent stroke, as these are not interchangeable. Clinical Trial Registration— URL: http://www.clinicaltrials.gov. Unique identifier: NCT00451529.
Source: Stroke - November 25, 2013 Category: Neurology Authors: Truijman, M. T. B., Kwee, R. M., van Hoof, R. H. M., Hermeling, E., van Oostenbrugge, R. J., Mess, W. H., Backes, W. H., Daemen, M. J., Bucerius, J., Wildberger, J. E., Kooi, M. E. Tags: Imaging, Carotid Stenosis, Computerized tomography and Magnetic Resonance Imaging, PET and SPECT Brief Reports 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

Monitoring Neuroprotective Effects Using Positron Emission Tomography With 11CITMM, a Radiotracer for Metabotropic Glutamate 1 Receptor Basic Sciences
Conclusions— [11C]ITMM-PET may be a useful technique for characterizing the change in mGlu1 level during the occurrence and progression of neuronal damage and for evaluating the neuroprotective effects of drugs after ischemia.
Source: Stroke - August 26, 2013 Category: Neurology Authors: Yui, J., Xie, L., Fujinaga, M., Yamasaki, T., Hatori, A., Kumata, K., Nengaki, N., Zhang, M.-R. Tags: PET and SPECT Basic Sciences Source Type: research

Cerebral hemodynamic benefits after carotid artery stenting in patients with near occlusion
Conclusions: Before CAS, patients with NO were more hemodynamically compromised than those with severe stenosis without NO. After CAS, significant cerebral hemodynamic improvement and normalization occurred long-term. Thus, from a hemodynamic perspective, CAS was effective in patients with NO.
Source: Journal of Vascular Surgery - July 26, 2013 Category: Surgery Authors: Fumiaki Oka, Hideyuki Ishihara, Shoichi Kato, Takayuki Oku, Akiko Yamane, Ichiro Kunitugu, Michiyasu Suzuki Tags: Clinical research studies Source Type: research

Effects of Noninvasive Brain Stimulation on Language Networks and Recovery in Early Poststroke Aphasia Clinical Sciences
Conclusions— Ten sessions of inhibitory rTMS over the right posterior inferior frontal gyrus, in combination with speech and language therapy, significantly improve language recovery in subacute ischemic stroke and favor recruitment of left-hemispheric language networks.
Source: Stroke - July 22, 2013 Category: Neurology Authors: Thiel, A., Hartmann, A., Rubi-Fessen, I., Anglade, C., Kracht, L., Weiduschat, N., Kessler, J., Rommel, T., Heiss, W.-D. Tags: Behavioral Changes and Stroke, PET and SPECT, Rehabilitation, Stroke, Other Stroke Treatment - Medical Clinical Sciences Source Type: research

Brain perfusion SPECT provides new insight on neurobiological effects of hyperbaric hyperoxia
This article is protected by copyright. All rights reserved.
Source: Acta Physiologica - June 25, 2013 Category: Physiology Authors: Silvia Morbelli, Dario Arnaldi Tags: Editorial Source Type: research

Reversible cerebral vasoconstriction syndrome associated with subarachnoid hemorrhage triggered by hydroxyzine pamoate
Reversible cerebral vasoconstriction syndrome (RCVS) is a disease of unknown etiology characterized by sudden headaches with or without additional neurologic deficits. RCVS has been documented in association with ischemic stroke and convexity subarachnoid hemorrhage (SAH) , but there are no reports of RCVS associated with SAH in conjunction with hydroxyzine pamoate treatment. Therefore, this is the first case of RCVS associated with SAH and hydroxyzine pamoate followed-up with N-isopropyl[123I]-p-iodoamphetamine single photon emission computed tomography-cerebral blood flow (IMP-SPECT-CBF) imaging and 3.0T magnetic resonan...
Source: Clinical Neurology and Neurosurgery - June 14, 2013 Category: Neurosurgery Authors: Fumihiro Matano, Yasuo Murai, Koji Adachi, Kenta Koketsu, Takayuki Kitamura, Akira Teramoto, Seiji Okubo, Yasuo Katayama, Tetsuro Sekine, Ryo Takagi, Shinichiro Kumita Tags: Case reports Source Type: research

Diagnostic impact of baseline cerebral blood flow in patients with acute ischemic stroke prior to intravenous recombinant tissue plasminogen activator therapy
Conclusion: These results suggest that rt-PA therapy for patients with severe cerebral perfusion defects may cause SICH and baseline CBF may contribute to identify patients at high risk for SICH after intravenous rt-PA therapy.
Source: Clinical Neurology and Neurosurgery - February 22, 2013 Category: Neurosurgery Authors: Masaki Ito, Tetsuyuki Yoshimoto, Masahito Kawabori, Shin Fujimoto, Tohru Yamauchi, Hideshi Yamaguchi, Kouichi Tokuda, Sadao Kaneko Tags: Original articles Source Type: research