caa a22 4500 445809760 CHVBK 20180317145208.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s00415-011-5955-7 doi (NATIONALLICENCE)springer-10.1007/s00415-011-5955-7 Brain perfusion abnormalities in patients with compromised venous outflow [Elektronische Daten] [Ribal Darwish, Nana Amiridze] Elevated intracranial intravenous pressure is not routinely measured in clinical practice. Indirect evidence of increased venous pressure is reflected in the size change of the cerebral sinuses and the presence of venous infarctions. The purpose of this study is to evaluate the role of brain perfusion venous time-density curves in the diagnosis of cerebral venous hypertension. A retrospective review of four cases in which increased cerebral intravenous pressure was reflected in abnormal time-density curves on CT brain perfusion studies was completed. The abnormal venous time-density curves correlated with clinically increased intravenous pressure and normalized after treating the underlying pathology. Abnormal venous outflow affects brain perfusion. This could be identified on a CT brain-perfusion study based on characteristic venous time-density curves. These curves may appear quite similar even when the underlying etiologies are different. Normalization of the venous time-density curves may be observed after the underlying pathology was treated. Springer-Verlag, 2011 Cerebral venous hypertension nationallicence Time-density curves nationallicence CT perfusion nationallicence Brain edema nationallicence Darwish Ribal Critical Care Medicine Division, Department of Anesthesiology, University of Maryland Medical Center, 22 S. Greene Street, 21201-1595, Baltimore, MD, USA aut Amiridze Nana Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, 22 S. Greene Street, 21201-1595, Baltimore, MD, USA aut Journal of Neurology Springer-Verlag 258/8(2011-08-01), 1445-1450 0340-5354 258:8<1445 2011 258 415 https://doi.org/10.1007/s00415-011-5955-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00415-011-5955-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Darwish Ribal Critical Care Medicine Division, Department of Anesthesiology, University of Maryland Medical Center, 22 S. Greene Street, 21201-1595, Baltimore, MD, USA aut NATIONALLICENCE 700 1- Amiridze Nana Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, 22 S. Greene Street, 21201-1595, Baltimore, MD, USA aut NATIONALLICENCE 773 0- Journal of Neurology Springer-Verlag 258/8(2011-08-01), 1445-1450 0340-5354 258:8<1445 2011 258 415 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer