https://www.selleckchem.com/products/nx-1607.html Telemedicine is booming in every medical sector. Besides being one of the WHO's priorities to deal with health cost and accessibility issues in both industrial and developing countries, recent COVID-19 sanitary crisis showed that it could be precious to ensure continuity of care in conditions of crisis. Telehealth is developing in anaesthesia in the whole perioperative period. This review focuses on recent data from literature on anaesthetic preoperative assessment. Four main issues are discussed (1) eligibility and feasibility of telemedicine for anaesthetic preoperative assessment; (2) its effectiveness regarding time of consultation, surgery cancellation rate and concordance of physical examination; (3) patients' satisfaction and; (4) its potential economic impact. T relaxation-based magnetic resonance imaging (MRI) signals may provide onset time for acute ischemic strokes with an unknown onset. The ability of visual and quantitative MRI-based methods in a cohort of hyperacute ischemic stroke patients was studied. A total of 35 patients underwent 3T (3 Tesla) MRI (<9-hour symptom onset). Diffusion-weighted (DWI), apparent diffusion coefficient (ADC), T -weighted (T w), T -weighted (T w), and T relaxation time (T ) images were acquired. T -weighted fluid attenuation inversion recovery (FLAIR) images were acquired for 17 of these patients. Image intensity ratios of the average intensities in ischemic and non-ischemic reference regions were calculated for ADC, DWI, T w, T relaxation, and FLAIR images, and optimal image intensity ratio cut-offs were determined. DWI and FLAIR images were assessed visually for DWI/FLAIR mismatch. The T relaxation time image intensity ratio was the only parameter with significant correlation with stroke duration (  = 0.49,  = .003), an area under the receiver operating characteristic curve (AUC = 0.77,  < .0001), and an optimal cut-off (T ratio = 1.072) that accurately identified patient