Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Ultrasound-guided intercostal nerve block images ( a , without annotations; b , with annotations) show axial in the sagittal plane with rib (*) and intercostal nerve (yellow dot) and 25-gauge needle (arrows) directed to the subcostal space for injection.
