Validation of the effectiveness of augmented reality-assisted vascular puncture: An experimental model.

Purpose: To demonstrate that the augmented reality-assisted puncture technique improves the efficacy of ultrasound-guided puncture to get central venous access (CVA), allows the image to be obtained without limitations, freeing the hands and keeping the gaze continuously on the working field, which contributes to improving the safety of the procedure.

Material And Methods: A gelatin mould with a latex surface and a chicken breast with silicone tubes inside were used to simulate vascular punctures. Images were obtained by an ultrasound scanner and post-processed with a specific software.

Measuring direct and indirect tendon parameters to characterize the proximal tendinous complex of the rectus femoris in football and futsal players.

To present unprecedented radiological parameters that characterize the angle between the direct and indirect tendons of the proximal rectus femoris (RF) and its inclinations and to evaluate the population variability according to demographic variables. From September 2019 to July 2021, using MRI multiplanar reconstructions of the proximal thigh/hip, two blinded radiologists measured the direct and indirect tendon angle and the inclination of each tendon in different planes. The intra- and inter-observer agreements were assessed with Bland-Altman analysis and intraclass correlation coefficient (ICC).