B
Billy O'Brien
Researcher at Gosford Hospital
Publications - 12
Citations - 358
Billy O'Brien is an academic researcher from Gosford Hospital. The author has contributed to research in topics: Stroke & Perfusion scanning. The author has an hindex of 7, co-authored 12 publications receiving 270 citations. Previous affiliations of Billy O'Brien include John Hunter Hospital & University of Newcastle.
Papers
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Journal ArticleDOI
Assessment of leptomeningeal collaterals using dynamic CT angiography in patients with acute ischemic stroke
Bijoy K Menon,Billy O'Brien,Andrew Bivard,Neil J. Spratt,Andrew M. Demchuk,Ferdinand Miteff,Xuewen Lu,Christopher R Levi,Mark W Parsons +8 more
TL;DR: A simple and reliable collateral grading template is described that, for the first time on dynamic CTA, incorporates back-filling time as well as size and extent of collateral filling.
Journal ArticleDOI
Brain histopathology in three cases of Susac's syndrome: implications for lesion pathogenesis and treatment
Todd A. Hardy,Billy O'Brien,Natasha Gerbis,Michael Barnett,Stephen W. Reddel,Janice Brewer,Geoffrey K. Herkes,Paul Silberstein,Roger Garsia,John D.G. Watson,Ruta Gupta,John Parratt,Michael E. Buckland +12 more
TL;DR: Treatment with the tumour necrosis factor (TNF) inhibitor, infliximab was beneficial in two patients, including in one previously reported,2 and in another who failed rituximab, and it is suggested that inflIXimab should be considered as an adjunct therapy in patients with refractory SS.
Journal ArticleDOI
Validating a Predictive Model of Acute Advanced Imaging Biomarkers in Ischemic Stroke.
Andrew Bivard,Christopher R Levi,Longting Lin,Xin Cheng,Richard I. Aviv,Neil J. Spratt,Min Lou,Timothy Kleinig,Billy O'Brien,Kenneth Butcher,Jingfen Zhang,Jim Jannes,Qiang Dong,Mark W Parsons +13 more
TL;DR: A predictive model for functional outcome based on acute clinical and advanced imaging measures to identify tissue pathophysiology may provide more accurate prognostication than the clinical measures used currently in stroke.
Journal ArticleDOI
Perfusion computed tomography in patients with stroke thrombolysis.
Hiroyuki Kawano,Andrew Bivard,Longting Lin,Henry Ma,Xin Cheng,Richard I. Aviv,Billy O'Brien,Kenneth Butcher,Min Lou,Jingfen Zhang,Jim Jannes,Qiang Dong,Christopher R Levi,Mark W Parsons +13 more
TL;DR: It is shown that saving a millilitre of penumbra translates into benefits equivalent to more than a week of disability-free life.
Journal ArticleDOI
Too good to treat? ischemic stroke patients with small computed tomography perfusion lesions may not benefit from thrombolysis.
Andrew Bivard,Min Lou,Christopher R Levi,Venkatesh Krishnamurthy,Xin Cheng,Richard I. Aviv,Patrick McElduff,Longting Lin,Timothy Kleinig,Billy O'Brien,Kenneth Butcher,Zhang Jingfen,Jim Jannes,Qiang Dong,Mark W Parsons +14 more
TL;DR: In this paper, the authors used a prospectively collected cohort of acute ischemic stroke patients being assessed for treatment with IV-alteplase, who had perfusion computed tomography (CTP) before a treatment decision.