Fig. 2
From: Changes in bowel sounds of inpatients undergoing general anesthesia
Overview of BSs data acquisition, processing, and analysis. BS is short for the bowel sound. Pre-op is short for before operation. Pro-op is short for after operation. 3 h-Pro-op is short for 3 h after operation. FD-PPA is short for FD-peak peeling algorithm. EBS is short for the effective bowel sound