CT angiography “spot sign” predicts hematoma expansion in acute intracerebral hemorrhage

…, DJ Sahlas, DJ Gladstone, G Tomlinson, SP Symons - Stroke, 2007 - Am Heart Assoc
Background and Purpose— Morbidity and mortality in spontaneous intracerebral hemorrhage
(ICH) are correlated with hematoma progression. We hypothesized that the presence of …

Hemorrhagic Transformation of Ischemic Stroke: Prediction with CT Perfusion1

…, B Buck, G Mallia, V Li, L Zhang, SP Symons… - Radiology, 2009 - pubs.rsna.org
Purpose: To determine whether admission computed tomography (CT) perfusion–derived
permeability–surface area product (PS) maps differ between patients with hemorrhagic acute …

Radiation dose from multidetector row CT imaging for acute stroke

A Mnyusiwalla, RI Aviv, SP Symons - Neuroradiology, 2009 - Springer
Introduction The objective of this study was to determine the radiation dose delivered during
comprehensive computed tomography (CT) imaging for acute stroke. Methods All CT …

Defining the CT angiography 'spot sign'in primary intracerebral hemorrhage

…, DJ Gladstone, JJ Hopyan, SP Symons… - Canadian journal of …, 2009 - cambridge.org
Purpose:The computed tomogram angiography (CTA) ‘spot sign’ describes foci of intralesional
enhancement associated with hematoma expansion in primary intracerebral hemorrhage …

Vascular and nonvascular mimics of the CT angiography “spot sign” in patients with secondary intracerebral hemorrhage

…, DJ Gladstone, G Mallia, V Li, AJ Fox, SP Symons - Stroke, 2008 - Am Heart Assoc
Background and Purpose— The newly-described computed tomography angiography (CTA)
Spot Sign is present in about one third of patients with acute primary intracerebral …

Postcontrast CT extravasation is associated with hematoma expansion in CTA spot negative patients

…, D Dowlatshahi, G BenDavit, K Wong, SP Symons… - Stroke, 2009 - Am Heart Assoc
Background and Purpose— The purpose of this study was to assess the effect of postcontrast
CT (PCCT) leakage (PCL) on hematoma growth in CTA spot negative patients. Methods— …

Validation of the 9-point and 24-point hematoma expansion prediction scores and derivation of the PREDICT A/B scores

…, R Bhatia, V Padma, J Roy, CS Kase, SP Symons… - Stroke, 2015 - Am Heart Assoc
Background and Purpose— Nine- and 24-point prediction scores have recently been published
to predict hematoma expansion (HE) in acute intracerebral hemorrhage. We sought to …

Intracranial arterial fenestrations: frequency on CT angiography and association with other vascular lesions

…, RI Aviv, J White, AJ Fox, SP Symons - Surgical and Radiologic …, 2008 - Springer
Fenestrations (segmental duplications) of the intracranial arteries are rare anomalies, felt to
result from incomplete fusion of primitive embryologic vessels. They have been associated …

Characterization of carotid plaque hemorrhage: a CT angiography and MR intraplaque hemorrhage study

…, RI Aviv, P Howard, R Yeung, AR Moody, SP Symons - Stroke, 2010 - Am Heart Assoc
Background and Purpose— The main objective of this study was to evaluate CT angiographic
(CTA) features that are able to predict the presence of intraplaque hemorrhage (IPH) as …

Low doses of ionizing radiation as a treatment for Alzheimer's disease: a pilot study

…, Y Goldberg, S Al-Shamaa, SP Symons… - Journal of …, 2021 - content.iospress.com
Background: In 2015, a patient in hospice with Alzheimer’s disease (AD) was treated with
ionizing radiation to her brain using repeated CT scans. Improvement in cognition, speech, …