Entorno virtual de enseñanza aprendizaje (EVE-A)
Usefulness of an Anisotropic Diffusion Method in Cerebral CT Perfusion Study Using Multi Detector Row CT
... idealized perfusion expe- riment, where a unit area bolus is instantaneously injected [ R ( ) 0 = 1 ] and subsequently washed out by perfusion [ R ( ) ∞ = 0 ...the cerebral blood flow (CBF). In this ...
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Cerebral Perfusion Pressure is Maintained in Acute Intracerebral Hemorrhage: A CT Perfusion Study
... to study CTA, spot sign, and ICH; Patents (planned, pending or issued: patent on CT imaging software for the ICH spot sign; Travel/Accommodations/ Meeting Expenses Unrelated to Activities Listed: BI ...
14
Diagnostic Accuracy of CT Angiography and CT Perfusion for Cerebral Vasospasm: A Meta Analysis
... The appropriate use of CTA and/or CTP imaging for vaso- spasm diagnosis in patients with ASAH has the potential to impact patient care. In attempts to improve patient outcomes, emphasis has been placed on earlier and ...
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Improved Arterial Visualization in Cerebral CT Perfusion–Derived Arteriograms Compared with Standard CT Angiography: A Visual Assessment Study
... There are some limitations to the study in general, as well. Although observers scored whether superimposed bone and veins were present in standard CTA, we did not quantify how much the arteries were obscured. ...
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Evaluating CT Perfusion Deficits in Global Cerebral Edema after Aneurysmal Subarachnoid Hemorrhage
... Forty-five patients with aSAH and admission CTP studies were included in the statistical analysis. Of these 45 patients, 42.2% (19/45) were classified as having GCE, and 57.8% (26/45), with- out GCE. Patient groups with ...
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Cerebral CT Perfusion Using an Interventional C Arm Imaging System: Cerebral Blood Flow Measurements
... Disclosures: Arundhuti Ganguly, Research Support (including provision of equipment and materials): Siemens Medical Systems, Details: The author has partial salary funding support from a research fund provided by Siemens ...
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Quantitative Cerebral Blood Flow Measurement with Dynamic Perfusion CT Using the Vascular Pixel Elimination Method: Comparison with H215O Positron Emission Tomography
... our study, the average PET-CBF value of the whole section ...on CT values of a pixel on a non- enhanced CT ...the cerebral cortex showed lower attenuation due to undershooting or beam ...
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Simultaneous Measurement of Regional Cerebral Blood Flow by Perfusion CT and Stable Xenon CT: A Validation Study
... the perfusion CT study, two adjacent levels among the six examined ones were selected at the level of the basal nu- ...10-mm CT sections were obtained every 2 s at these two adjacent levels ...
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Improving Acute Stroke Management with CT Perfusion Imaging: Approaches to Treatment Guidance and Brain Tissue Salvage
... The study was approved by the research ethics board of the institution + ...middle cerebral artery occlusion, had a CT angiography (CTA) at baseline and 24 hours for recanalization status, and were ...
5
Optimal Brain Perfusion CT Coverage in Patients with Acute Middle Cerebral Artery Stroke
... our study, it seems that more extended levels of z-axis coverage have little if any contribution to estimating a mis- match of ...our study. Notably, our study focused on a relatively small sample of ...
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Dynamic CT Perfusion to Assess the Effect of Carotid Revascularization in Chronic Cerebral Ischemia
... contrast-enhanced CT perfusion be- fore and after carotid ...decreased perfusion in the ipsilateral insula, which was shown to be resolved on the scan obtained 1 day after treatment, indicating the ...
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Cerebral perfusion pressure and risk of brain hypoxia in severe head injury: a prospective observational study
... tored using an intraparenchymal probe (ICP transducer Ven- trix, Integra Neurosciences, Plainsboro, New Jersey, USA), epidural probe (Spiegelberg GmHB & Co., Hamburg, Ger- many) or ventricular catheter, and a ...
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CT Angiography and Perfusion CT in Cerebral Vasospasm after Subarachnoid Hemorrhage
... previous study conducted by Anderson et al 36 showed a similar MSCTA accuracy for mild and moderate spasm (57% and 64%, respectively), compared with the accu- racy values obtained for absent spasm and severe spasm ...
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Can CT Perfusion Guide Patient Selection for Treatment of Delayed Cerebral Ischemia?
... which perfusion deficits require HHH and/or IA- therapy, further evaluation with quantitative analysis is needed to differentiate treatment ...this study, CBF showed statistically significant differences ...
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Assessment of Pre- and Post-Operative Cerebral Perfusion in Anterior Circulation Intracranial Aneurysm Clipping Patients at Hospital Sungai Buloh Using CT Perfusion Scan and Correlations to Fisher, Navarro and WFNS Scores
... the CT brain scan (25). Another study by Claassen et ...delayed cerebral ischemia ...A study by Navarro (26) considers five predictive factors, which includes WFNS score, pre-existing ...
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Bollwein, Christine (2018): Untersuchungen zur Rolle der Ganzhirn CT-Perfusion in der akuten Schlaganfalldiagnostik. Dissertation, LMU München: Medizinische Fakultät
... middle cerebral artery occlusions ...center study and demonstrated that a good leptomeningeal collateralization correlates strongly with the size of infarct core at baseline and is a strong independent ...
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Effect of Stenting on Cerebral CT Perfusion in Symptomatic and Asymptomatic Patients with Carotid Artery Stenosis
... 3 perfusion param- eters in symptomatic patients, while in asymptomatic patients, only rCBF showed a significant ...our study, both symptomatic and asymptomatic patients showed significant improvement of ...
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Effect of propofol and remifentanil on cerebral perfusion and oxygenation in pigs: a systematic review
... It is difficult to compare the cerebral perfusion meas- ures reported in the selected articles. CBF was reported in 4 studies (Table 6). Lurie et al. [73] and Yannopoulos et al. [69] quantified a global ...
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Imaging Guided Acute Ischemic Stroke Therapy: From “Time Is Brain” to “Physiology Is Brain”
... Imaging and Current Stroke Therapy. The major deter- minants of the decision to proceed with a stroke treatment are the clinical presentation, the duration of stroke onset, and essentially negative findings on a ...
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Applications of CT Perfusion-Based Triaging and Prognostication in Acute Ischemic Stroke
... Tissue in the central, most hypoperfused region, with CBF below the threshold for irreversible damage, is termed the infarct core. The definition of infarct core was originally based on substantial increases in ...
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