Publications by authors named "Y Berthezene"
Article Synopsis
- The study explored how increased oxygen extraction fraction (OEF) affects the recovery of diffusion-weighted imaging (DWI) lesions in stroke patients who underwent thrombectomy after acute ischemic events.
- It analyzed data from the HIBISCUS-STROKE cohort, focusing on DWI and perfusion magnetic resonance imaging results to understand the relationship between OEF levels and changes in ischemic lesion volume.
- Results showed that patients with increased OEF within their DWI lesions experienced a significant reduction in lesion volume compared to those without increased OEF, suggesting that higher OEF may be a positive indicator for recovery post-thrombectomy.
Introduction: To investigate the relationship between collaterals and blood-brain barrier (BBB) permeability on pre-treatment MRI in a cohort of acute ischemic stroke (AIS) patients treated with thrombectomy.
Methods: We conducted a retrospective analysis of the HIBISCUS-STROKE cohort, a single-center observational study that enrolled patients treated with thrombectomy from 2016 to 2022. Dynamic-susceptibility MRIs were post-processed to generate K2 maps with arrival-time correction, which were co-registered with apparent diffusion coefficient (ADC) maps.
Differentiating neoplastic from non-neoplastic spinal cord pathologies may be challenging due to overlapping clinical and radiological features. Spinal cord tumors, which comprise only 2-4% of central nervous system tumors, are rarer than non-tumoral myelopathies of inflammatory, vascular, or infectious origins. The risk of neurological deterioration and the high rate of false negatives or misdiagnoses associated with spinal cord biopsies require a cautious approach.
View Article and Find Full Text PDFBackground: Left ventricular thrombus (LVT) is a source of cardiogenic embolic stroke. Conflicting data exist in the literature regarding the utilization of intravenous thrombolysis (IVT) at the acute phase of stroke in presence of LVT. We sought to assess the efficacy and safety of reperfusion therapies (IVT and/or thrombectomy) in patients with LVT.
View Article and Find Full Text PDFArticle Synopsis
- The study aimed to evaluate how consistently different examiners score medical students during a neurology OSCE, focusing on the influence of examiner characteristics like specialty and gender.
- During the mock OSCE, video recordings of student performances were scored by physicians, and the reliability of scores was measured using a statistical method called intraclass correlation coefficient.
- Results showed good agreement for checklist scores but only moderate agreement for global ratings, with no impact from specialty on scoring but a correlation indicating that male examiners tended to give lower global ratings.