Search Results - "Zaro Weber, Olivier"

Penumbra detection in acute stroke with perfusion magnetic resonance imaging: Validation with 15O‐positron emission tomography by Zaro‐Weber, Olivier, Fleischer, Hermann, Reiblich, Lucas, Schuster, Alexander, Moeller‐Hartmann, Walter, Heiss, Wolf‐Dieter

“…Objective Accurate identification of the ischemic penumbra, the therapeutic target in acute clinical stroke, is of critical importance to identify patients who…”
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Clinical evaluation of an arterial-spin-labeling product sequence in steno-occlusive disease of the brain by Mutke, Matthias A, Madai, Vince I, von Samson-Himmelstjerna, Federico C, Zaro Weber, Olivier, Revankar, Gajanan S, Martin, Steve Z, Stengl, Katharina L, Bauer, Miriam, Hetzer, Stefan, Günther, Matthias, Sobesky, Jan

“…In brain perfusion imaging, arterial spin labeling (ASL) is a noninvasive alternative to dynamic susceptibility contrast-magnetic resonance imaging (DSC-MRI)…”
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Validation of MRI Determination of the Penumbra by PET Measurements in Ischemic Stroke by Heiss, Wolf-Dieter, Zaro Weber, Olivier

“…The concept of the ischemic penumbra was formulated on the basis of animal experiments showing functional impairment and electrophysiologic disturbances with…”
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The Cologne stroke experience: safety and outcome in 450 patients treated with intravenous thrombolysis by Sobesky, Jan, Frackowiak, Monika, Zaro Weber, Olivier, Hahn, Moritz, Möller-Hartmann, Walter, Rudolf, Jobst, Neveling, Michael, Grond, Martin, Schmulling, Susanne, Jacobs, Andreas, Heiss, Wolf-Dieter

“…Predictors of outcome and safety in intravenous thrombolysis within 3 h in clinical routine is a matter of ongoing debate. Available reports contain small…”
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Penumbra detection in acute stroke with perfusion magnetic resonance imaging: Validation with 15 O-positron emission tomography by Zaro-Weber, Olivier, Fleischer, Hermann, Reiblich, Lucas, Schuster, Alexander, Moeller-Hartmann, Walter, Heiss, Wolf-Dieter

“…Accurate identification of the ischemic penumbra, the therapeutic target in acute clinical stroke, is of critical importance to identify patients who might…”
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Does the mismatch match the penumbra? : Magnetic resonance imaging and positron emission tomography in early ischemic stroke by SOBESKY, Jan, WEBER, Olivier Zaro, LEHNHARDT, Fritz-Georg, HESSELMANN, Volker, NEVELING, Michael, JACOBS, Andreas, HEISS, Wolf-Dieter

“…In ischemic stroke, diffusion-weighted (DW) and perfusion-weighted (PW) magnet resonance imaging (MRI) is used to define the mismatch as the therapeutic…”
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Early ischemic edema on cerebral computed tomography: its relation to diffusion changes and hypoperfusion within 6 h after human ischemic stroke. A comparison of CT, MRI and PET by Sobesky, Jan, von Kummer, Rüdiger, Frackowiak, Monika, Zaro Weber, Olivier, Lehnhardt, Fritz G, Dohmen, Christian, Neveling, Michael, Möller-Hartmann, Walter, Jacobs, Andreas H, Heiss, Wolf-Dieter

“…Brain tissue hypoattenuation on early computed tomography is frequently included in decision making in acute stroke management. However, its pathophysiological…”
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Outcome and symptomatic bleeding complications of intravenous thrombolysis within 6 hours in MRI-selected Stroke patients: Comparison of a German multicenter Study with the pooled data of atlantis, ECASS, and ninds tPA trials by THOMALLA, Götz, SCHWARK, Christian, ZEUMER, Hermann, WEILLER, Cornelius, HACKE, Werner, SCHELLINGER, Peter D, RÖTHER, Joachim, SOBESKY, Jan, BLUHMKI, Erich, FIEBACH, Jochen B, FIEHLER, Jens, WEBER, Olivier Zaro, KUCINSKI, Thomas, JUETTLER, Eric, RINGLEB, Peter A

“…We compared outcome and symptomatic bleeding complications of intravenous tissue plasminogen activator (IV-tPA) within 6 hours of symptom onset in MRI-selected…”
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Comparison of the 2 Most Popular Deconvolution Techniques for the Detection of Penumbral Flow in Acute Stroke by Zaro-Weber, Olivier, Livne, Michelle, Martin, Steve Z, von Samson-Himmelstjerna, Federico C, Moeller-Hartmann, Walter, Schuster, Alexander, Brunecker, Peter, Heiss, Wolf-Dieter, Sobesky, Jan, Madai, Vince I

“…BACKGROUND AND PURPOSE—Dynamic susceptibility–weighted contrast–enhanced (DSC) magnetic resonance imaging (MRI) is used to identify the tissue-at-risk in acute…”
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Two tales: Hemorrhagic transformation but not parenchymal hemorrhage after thrombolysis is related to severity and duration of ischemia : MRI study of acute stroke patients treated with intravenous tissue plasminogen activator within 6 hours by THOMALLA, Götz, SOBESKY, Jan, SCHELLINGER, Peter D, KÖHRMANN, Martin, FIEBACH, Jochen B, FIEHLER, Jens, WEBER, Olivier Zaro, KRUETZELMANN, Anna, KUCINSKI, Thomas, ROSENKRANZ, Michael, RÖTHER, Joachim

“…Intracerebral hemorrhage represents the most feared complication of treatment with intravenous tissue plasminogen activator. We studied whether…”
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A PET‐Guided Framework Supports a Multiple Arterial Input Functions Approach in DSC‐MRI in Acute Stroke by Livne, Michelle, Madai, Vince I., Brunecker, Peter, Zaro‐Weber, Olivier, Moeller‐Hartmann, Walter, Heiss, Wolf‐Dieter, Mouridsen, Kim, Sobesky, Jan

“…ABSTRACT BACKGROUND AND PURPOSE In acute stroke, arterial‐input‐function (AIF) determination is essential for obtaining perfusion estimates with dynamic…”
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DWI intensity values predict FLAIR lesions in acute ischemic stroke by Madai, Vince I, Galinovic, Ivana, Grittner, Ulrike, Zaro-Weber, Olivier, Schneider, Alice, Martin, Steve Z, von Samson-Himmelstjerna, Federico C, Stengl, Katharina L, Mutke, Matthias A, Moeller-Hartmann, Walter, Ebinger, Martin, Fiebach, Jochen B, Sobesky, Jan

“…In acute stroke, the DWI-FLAIR mismatch allows for the allocation of patients to the thrombolysis window (<4.5 hours). FLAIR-lesions, however, may be…”
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Clinical-Radiological Parameters Improve the Prediction of the Thrombolysis Time Window by Both MRI Signal Intensities and DWI-FLAIR Mismatch by Madai, Vince Istvan, Wood, Carla N, Galinovic, Ivana, Grittner, Ulrike, Piper, Sophie K, Revankar, Gajanan S, Martin, Steve Z, Zaro-Weber, Olivier, Moeller-Hartmann, Walter, von Samson-Himmelstjerna, Federico C, Heiss, Wolf-Dieter, Ebinger, Martin, Fiebach, Jochen B, Sobesky, Jan

“…With regard to acute stroke, patients with unknown time from stroke onset are not eligible for thrombolysis. Quantitative diffusion weighted imaging (DWI) and…”
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Uncertainties in the assessment of cortical flow by perfusion-weighted MRI in acute stroke by Heiss, Wolf-Dieter, Zaro Weber, Olivier

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Age related signal decrease in functional magnetic resonance imaging during motor stimulation in humans by Hesselmann, Volker, Zaro Weber, Olivier, Wedekind, Christoph, Krings, Timo, Schulte, Oliver, Kugel, Harald, Krug, Barbara, Klug, Norfrid, Lackner, Klaus J.

“…Right handed healthy volunteers underwent functional magnetic resonance imaging (fMRI) examinations on a 1.5 Tesla MRI-scanner (Gyroscan ACS NT; Philips, Best,…”
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Maps of Time to Maximum and Time to Peak for Mismatch Definition in Clinical Stroke Studies Validated With Positron Emission Tomography by ZARO-WEBER, Olivier, MOELLER-HARTMANN, Walter, HEISS, Wolf-Dieter, SOBESKY, Jan

“…Perfusion-weighted imaging-derived maps of time-to-maximum (Tmax) are increasingly used to identify the tissue at risk in clinical stroke studies (eg, DEFUSE…”
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MRI-based mismatch detection in acute ischemic stroke: Optimal PWI maps and thresholds validated with PET by Zaro-Weber, Olivier, Moeller-Hartmann, Walter, Siegmund, Dora, Kandziora, Alexandra, Schuster, Alexander, Heiss, Wolf-Dieter, Sobesky, Jan

“…Perfusion-weighted (PW) magnetic resonance imaging (MRI) is used to detect penumbral tissue in acute stroke, but the selection of optimal PW-maps and…”
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Extension of therapeutic window in ischemic stroke by selective mismatch imaging by Heiss, Wolf-Dieter, Zaro-Weber, Olivier

“…The concept of the ischemic penumbra was formulated on the basis of animal experiments showing functional impairment and electrophysiologic disturbances with…”
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MRI-based and CT-based thrombolytic therapy in acute stroke within and beyond established time windows : An analysis of 1210 patients by SCHELLINGER, Peter D, THOMALLA, Götz, FIEHLER, Jens, KÖHRMANN, Martin, MOLINA, Carlos A, NEUMANN-HAEFELIN, Tobias, RIBO, Marc, SINGER, Oliver C, ZARO-WEBER, Olivier, SOBESKY, Jan

“…The use of intravenous thrombolysis is restricted to a minority of patients by the rigid 3-hour time window. This window may be extended by using modern…”
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MRI perfusion maps in acute stroke validated with 15O-water positron emission tomography by Zaro-Weber, Olivier, Moeller-Hartmann, Walter, Heiss, Wolf-Dieter, Sobesky, Jan

“…Perfusion-weighted imaging maps are used to identify hypoperfusion in acute ischemic stroke. We evaluated maps of cerebral blood flow (CBF), cerebral blood…”
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