Elmahdy MF, et al. - The goal of this research was to investigate whether pre-procedure vascular ultrasound scanning (VUS) of radial arteries (RAs) can increase the radial access success (RAS) rate and/or reduce the vascular access time (VAT), by guiding the choice of the proper access site for repeated trans-radial interventions (TRIs). According to findings, significant reduction in VAT, procedure duration, RA spasm and a mild increase in the RAS rate were evident in relation to VUS of RAs prior to repeated-TRI.