Ferghal McVerry

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BACKGROUND AND PURPOSE The importance of LMF in the outcome after acute ischemic stroke is increasingly recognized, but imaging presents a wide range of options for identification of collaterals and there is no single system for grading collateral flow. The aim of this study was to systematically review the literature on the available methods for measuring(More)
An elderly female smoker presented with nausea and anorexia. Imaging and histopathology were consistent with a diagnosis of small cell lung cancer (SCLC). She subsequently developed a progressive sensorimotor neuropathy with high titres of anti-Hu antibodies. Development of the neuropathy was associated with marked regression in the lung neoplasm. Repeat(More)
BACKGROUND In randomised trials testing treatments for acute ischaemic stroke, imaging markers of tissue reperfusion and arterial recanalisation may provide early response indicators. OBJECTIVE To determine the predictive value of structural, perfusion and angiographic imaging for early and late clinical outcomes and assess practicalities in three(More)
BACKGROUND AND PURPOSE Computed tomography perfusion provides information on tissue viability according to proposed thresholds. We evaluated thresholds for ischemic core and tissue at risk and subsequently tested their accuracy in independent datasets. MATERIALS AND METHODS Tissue at risk was evaluated in patients with persistent arterial occlusions, and(More)
Background and Purpose—Iodinated contrast is increasingly used in CT perfusion or angiographic examinations in acute stroke. Increased risk of intracranial hemorrhage (ICH) complicating microcatheter contrast injections has recently been reported in the second Interventional Management of Stroke (IMS 2) trial with contrast toxicity potentially contributory.(More)
BACKGROUND AND AIM Our aim was to assess the prognostic value of a semiquantitative computed tomography angiography-based grading system, for the prediction of outcome in patients with acute basilar artery occlusion, based on the presence of potential collateral pathways on computed tomography angiography: the posterior circulation collateral score (PC-CS).(More)
BACKGROUND The steep, time-dependent loss of benefit from reperfusion in clinical trials is consistent with loss of penumbra over the early hours of ischemia, as observed in animal models. Human imaging studies, however, show persistent penumbra for up to 48 h. We investigated core and penumbra volumes and collateral status in relation to time after stroke(More)
INTRODUCTION Cerebrospinal fluid (CSF) spectroscopy can identify subarachnoid haemorrhage (SAH) when CT is negative in patients presenting with acute severe headache. The primary objective of this study was to evaluate the clinical use and usefulness of CSF spectrophotometry. Secondary objectives were to identify other causes of elevated CSF bilirubin, to(More)