Kåsine T, Romundstad L, Rosseland LA, et al. - Researchers undertook this first human volunteer study using a new device for ultrasonographic needle tip tracking, the Onvision (that includes an ultrasound sensor on the needle tip that is then represented by a green circle on the ultrasound screen), to gauge the impact of needle tip tracking on procedural time of deep peripheral nerve blocks. Ultrasound-guided lumbar plexus blocks with an out-of-plane technique were performed with and without the use of needle tip tracking, and analysis of data from 25 volunteers was performed. They found that with needle tip tracking and without, the mean (SD) procedural time was 163 (103) s and 216 (117) s, respectively. No decrease in the procedural time for out-of-plane ultrasound-guided lumbar plexus block was brought about by Onvision needle tip tracking, however, it did attenuate the number of hand movements and path lengths. This likely suggests improved needle control.