Predicting prolonged postoperative ileus in gastric cancer patients based on bowel sounds using intelligent auscultation and machine learning

Figure 2 Flowchart of bowel sound collection in clinical department. A registered wireless bowel sound collector was connected to the system and placed in the patient's right lower abdomen (ileocecal region). Bowel sounds were collected through the local area network. Bowel sound collector is indicted in blue, and the computer represents the terminal.