Fig. 6From: Posterior parasagittal in-plane ultrasound-guided infraclavicular brachial plexus block–a case seriesUltrasound guided posterior parasagittal in-plane infraclavicular brachial plexus block (a) needle trajectory - horizontal, easy direction towards target point, good needle visualization in most cases (b) LA deposit on posterolateral aspect of axillary artery, creating double bubble signBack to article page