Search Results - "Siemonsen, S"

3T MRI reveals extra- and intracranial involvement in giant cell arteritis by Siemonsen, S, Brekenfeld, C, Holst, B, Kaufmann-Buehler, A-K, Fiehler, J, Bley, T A

“…The frequency and amount of intracranial, intradural inflammatory vessel wall enhancement in giant cell arteritis remain unclear. The purpose of this work was…”
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Reversible, irreversible and effective transverse relaxation rates in normal aging brain at 3 T by SEDLACIK, J, BOELMANS, K, LÖBEL, U, HOLST, B, SIEMONSEN, S, FIEHLER, J

“…Quantitative transverse relaxation rates in normal aging brain are essential to investigate pathologies associated with iron accumulation and tissue…”
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Long-Term Follow-Up of Cerebral Aneurysms after Endovascular Therapy Prediction and Outcome of Retreatment by Ries, T, Siemonsen, S, Thomalla, G, Grzyska, U, Zeumer, H, Fiehler, J

“…The purpose of this study was to analyze angiographic and clinical results before and after additional endovascular therapy in patients with previously coiled…”
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Comparison of 10 TTP and Tmax estimation techniques for MR perfusion-diffusion mismatch quantification in acute stroke by Forkert, N D, Kaesemann, P, Treszl, A, Siemonsen, S, Cheng, B, Handels, H, Fiehler, J, Thomalla, G

“…The mismatch between lesions identified in perfusion- and diffusion-weighted MR imaging is typically used to identify tissue at risk of infarction in acute…”
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Reversible, irreversible and effective transverse relaxation rates in normal aging brain at 3T by Sedlacik, J., Boelmans, K., Löbel, U., Holst, B., Siemonsen, S., Fiehler, J.

“…Quantitative transverse relaxation rates in normal aging brain are essential to investigate pathologies associated with iron accumulation and tissue…”
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Prediction of infarction and reperfusion in stroke by flow- and volume-weighted collateral signal in MR angiography by Ernst, M, Forkert, N D, Brehmer, L, Thomalla, G, Siemonsen, S, Fiehler, J, Kemmling, A

“…In proximal anterior circulation occlusive strokes, collateral flow is essential for good outcome. Collateralized vessel intensity in TOF- and…”
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T1 Recovery Is Predominantly Found in Black Holes and Is Associated with Clinical Improvement in Patients with Multiple Sclerosis by Thaler, C, Faizy, T D, Sedlacik, J, Holst, B, Stürner, K, Heesen, C, Stellmann, J-P, Fiehler, J, Siemonsen, S

“…Quantitative MR imaging parameters help to evaluate disease progression in multiple sclerosis and increase correlation with clinical disability. We therefore…”
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Improved Lesion Detection by Using Axial T2-Weighted MRI with Full Spinal Cord Coverage in Multiple Sclerosis by Galler, S, Stellmann, J-P, Young, K L, Kutzner, D, Heesen, C, Fiehler, J, Siemonsen, S

“…Identification of lesions in specific locations gains importance in multiple sclerosis imaging diagnostic criteria. In clinical routine, axial scans are…”
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Low clinical conversion rate in clinically isolated syndrome patients – diagnostic benefit of McDonald 2010 criteria? by Rosenkranz, S. C., Kaulen, B., Neuhaus, A., Siemonsen, S., Köpke, S., Daumer, M., Stellmann, J.‐P., Heesen, C.

“…Background and purpose New diagnostic criteria of multiple sclerosis (MS) increase the number of patients being diagnosed with MS whilst a substantial part…”
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Acute diseases of the brain and heart : A reciprocal culprit-victim relationship by Egerer, E, Siemonsen, S, Erbguth, F

“…The reciprocal culprit-victim relationship between the brain and the heart leads to dysfunction and damage to the other organ, especially in acute and severe…”
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Age-Dependent Normal Values of T2 and T2' in Brain Parenchyma by Siemonsen, S, Finsterbusch, J, Matschke, J, Lorenzen, A, Ding, X.-Q, Fiehler, J

“…Physiologic age-related T2* and T2' values are required as reference for comparison with disease-related deviations. In our study, T2* and T2' values (T2…”
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Comparison of detectability and extent of antiresorptive drug-related osteonecrosis of the jaw in magnetic resonance imaging at 1.5-Tesla and 3-Tesla by Assaf, A.T, Smeets, R, Heiland, M, Schöllchen, M, Semmusch, J, Rendenbach, C, Schönfeld, M, Sedlacik, J, Fiehler, J, Siemonsen, S

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Thrombolysis targeting MRI defined tissue at risk in minor stroke by Kruetzelmann, A, Siemonsen, S, Gerloff, C, Rosenkranz, M, Röther, J, Fiehler, J, Thomalla, G

“…Background:Treatment with intravenous tissue plasminogen activator (IV-tPA) is usually not recommended in patients with minor stroke. Clinical and imaging…”
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Chronic T2 Lesions in Multiple Sclerosis are Heterogeneous Regarding Phase MR Imaging by Siemonsen, S., Young, K.L., Bester, M., Sedlacik, J., Heesen, C., Fiehler, J., Stellmann, J.-P.

“…Purpose Phase imaging provides additional information on multiple sclerosis (MS) lesions and may in combination with mean diffusivity (MD) and magnetization…”
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T2' imaging indicates decreased tissue metabolism in frontal white matter of MS patients by Holst, B, Siemonsen, S, Finsterbusch, J, Bester, M, Schippling, S, Martin, R, Fiehler, J

“…Background and purpose T2'-Magnetic resonance imaging (MRI) allows estimation of oxygen metabolism in normal appearing white and gray matter (NAWM and NAGM)…”
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Visual Assessment of Magnetic Resonance Imaging Perfusion Lesions in a Large Patient Group by Siemonsen, S., Fitting, T., Thomalla, G., Krützelmann, A., Fiehler, J.

“…Purpose Few magnetic resonance imaging (MRI) studies of stroke have evaluated the value of visual assessment of perfusion/diffusion mismatch, which is crucial…”
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Visual rating of T2'-blood-oxygen-level-dependent magnetic resonance imaging in acute stroke patients--a pilot study by Fiehler, J, Geisler, B, Siemonsen, S, Saager, C, Speck, O, Thomalla, G, Grzyska, U, Kucinski, T

“…Delineation of brain tissue that is at risk but not yet infarcted (penumbra) continues to be a major challenge for stroke imaging. Metabolic characterization…”
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Describing Intracerebral Hemorrhages: The Perihematomal Rim of Decreased ADC in Hyperacute Bleedings by Schneider, T, Frieling, D, Regelsberger, J, Fiehler, J, Siemonsen, S

“…Background and Purpose: When analyzing the MRI morphology of hyperacute intracerebral hemorrhages (HICH, <6 hours from symptom onset), we found a perihematomal…”
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Connectome from DTI based probabilistic tractography is associated with walking and real-life physical activity in PPMS by Siemonsen, S, Heesen, C, Fiehler, J, Stellmann, J.-P

“…Background: Probabilistic tractography based on Diffusion Tensor Imaging (DTI) data from Magnet Resonance Imaging (MRI) allows to model structural connectivity…”
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Elevated T2-values in MRI of stroke patients shortly after symptom onset do not predict irreversible tissue infarction by SIEMONSEN, Susanne, LÖBEL, Ulricke, SEDLACIK, Jan, FORKERT, Nils D, MOURIDSEN, Kim, ØSTERGAARD, Leif, THOMALLA, Gotz, FIEHLER, Jens

“…Distinct from signal alterations in diffusion-weighted images, T(2)-values are also dependent on tissue water content and known to increase with time from…”
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