Spectral analysis of electrogastrogram and its clinical significance

Table 1 Composition of the electrogastrogram recording

Components		Freq (cpm)
Signal	Gastric Slow Waves	0.5-9.0
Noise	Respiration	12-24
	Small Bowel	9-12
	EKG	60-80
	Motion Artifacts	Whole Range

Table 2 Dominant frequencies and their corresponding powers of a 10-min electrogastrogram recording computed by the adaptive spectral analysis method

Time (min)	Frequency (cpm)	Power (dB)
0-1	3.25	40.5
1-2	3.28	42.3
2-3	3.02	43.6
3-4	3.22	50.7
4-5	3.25	49.5
5-6	3.34	45.8
6-7	3.02	42.5
7-8	3.12	50.0
8-9	3.05	48.3
9-10	3.06	45.6
Mean (SD)	3.16 (0.12)	45.9 (3.6)