Spectral analysis of bowel sounds in intestinal obstruction using an electronic stethoscope

Figure 1 Example of bowel sound recording displayed in the “waveform” view. The y-axis indicates the relative sound amplitude and the x-axis indicates recording time elapsed in seconds. This recording was taken from a patient with a small bowel obstruction. Note the isolated sound on the left side followed by two clusters of sound in the middle and on right side of the strip.