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.
The entry of the Veress needle into the peritoneal cavity (marked in red frames) can clearly be observed in the time-domain vibroacoustic signal. This figure displays ten exemplary signals; however, this was observed in 100% of the acquired signals.
