User profiles for O. Jansen

Olav Jansen

Professor Radiologie, CAU Kiel
Verified email at uksh.de
Cited by 34651

Penumbral imaging and functional outcome in patients with anterior circulation ischaemic stroke treated with endovascular thrombectomy versus medical therapy: a …

…, A Bharatha, R Jahan, O Jansen… - The Lancet …, 2019 - thelancet.com
Background CT perfusion (CTP) and diffusion or perfusion MRI might assist patient selection
for endovascular thrombectomy. We aimed to establish whether imaging assessments of …

Management of atherosclerotic extracranial carotid artery stenosis

LH Bonati, O Jansen, GJ de Borst… - The Lancet …, 2022 - thelancet.com
Atherosclerosis leading to stenosis of the internal carotid artery is the underlying cause of 8–15%
of ischaemic strokes (symptomatic carotid stenosis). 1–2% of the adult population have …

[HTML][HTML] Stent-retriever thrombectomy after intravenous t-PA vs. t-PA alone in stroke

…, DJ Cohen, W Hacke, O Jansen… - … England Journal of …, 2015 - Mass Medical Soc
Background Among patients with acute ischemic stroke due to occlusions in the proximal
anterior intracranial circulation, less than 40% regain functional independence when treated …

Analyses of thrombi in acute ischemic stroke: a consensus statement on current knowledge and future directions

…, MJ Gounis, J Gralla, O Jansen… - … journal of stroke, 2017 - journals.sagepub.com
Limited data exist on clot composition and detailed characteristics of arterial thrombi
associated with large vessel occlusion in acute ischemic stroke. Advances in endovascular …

Early hemicraniectomy in patients with complete middle cerebral artery infarction

…, T Steiner, A Aschoff, S Schwarz, HH Steiner, O Jansen… - Stroke, 1998 - Am Heart Assoc
Background and Purpose—Malignant, space-occupying supratentorial ischemic stroke is
characterized by a mortality rate of up to 80%. Several reports indicate a beneficial effect of …

Results of the Stent-Protected Angioplasty versus Carotid Endarterectomy (SPACE) study to treat symptomatic stenoses at 2 years: a multinational, prospective …

…, R Stingele, J Fiehler, H Zeumer, O Jansen - The Lancet …, 2008 - thelancet.com
Background The SPACE trial is a multinational, prospective, randomised study to test the
hypothesis that carotid artery stenting is not inferior to carotid endarterectomy for treating …

Multisociety consensus quality improvement revised consensus statement for endovascular therapy of acute ischemic stroke

…, M Shazam Hussain, O Jansen… - … journal of stroke, 2018 - journals.sagepub.com
Endovascular therapy (EVT) for acute ischemic stroke in selected patients has recently been
proven effective in several clinical trials, and the widespread adoption of thrombectomy into …

CT and diffusion-weighted MR imaging in randomized order: diffusion-weighted imaging results in higher accuracy and lower interrater variability in the diagnosis of …

JB Fiebach, PD Schellinger, O Jansen, M Meyer… - Stroke, 2002 - Am Heart Assoc
Background and Purpose— Diffusion-weighted MRI (DWI) has become a commonly used
imaging modality in stroke centers. The value of this method as a routine procedure is still …

Thrombectomy alone versus intravenous alteplase plus thrombectomy in patients with stroke: an open-label, blinded-outcome, randomised non-inferiority trial

…, MD Hill, VT Hua, L Humbertjean, O Jansen… - The Lancet, 2022 - thelancet.com
Background Whether thrombectomy alone is equally as effective as intravenous alteplase
plus thrombectomy remains controversial. We aimed to determine whether thrombectomy …

Manganese and chronic hepatic encephalopathy

D Krieger, S Krieger, L Theilmann, O Jansen, P Gass… - The Lancet, 1995 - Elsevier
Clinical observations and animal studies have raised the hypothesis that increased concentrations
of manganese (Mn) in whole blood might lead to accumulation of this metal within the …