For ultrasound-guided intercostal nerve block, the tip of the needle is placed between the internal intercostal muscle and the innermost intercostal muscle, as shown by the tip of the arrow in this image. LA should be visualized spreading the two muscles apart.
Copyright © 2012 Jens Børglum and Kenneth Jensen. Originally published in Abdominal Surgery, Derbel F (Ed), InTech 2012, under
CC BY 3.0 license. Available from:
DOI: 10.5772/3020 (Accessed on November 4, 2015).