RT Journal Article SR Electronic A1 Vinall, Phil T1 State-of-the-Art Surgical and Endovascular Treatment for Intracranial Occlusive Disease JF MD Conference Express YR 2010 FD SAGE Publications VO 10 IS 1 SP 27 OP 28 DO 10.1177/155989771001017 UL http://mdc.sagepub.com/content/10/1/27.abstract AB High oxygen extraction fraction (OEF) is detectable by positron emission tomography (PET), and superficial temporal artery to middle cerebral artery (STA-MCA) bypass surgery can be used to improve cerebral hemodynamics in stroke risk patients [Zipfel et al. Skull Base 2005]. This article discusses some of the studies that have used PET to detect OEF, including the COSS Study, WASID Trial, SAMMPRIS Study.