The EGG uses an instrumentational amplifier and a band-pass filter similar to an EKG. The signal is seen on a scope and compared to the signal of a healthy person. After thorough research, it was able to detect ulcers and dyspepsia more accurately than oth
Another device called the EGG (ElectroGastroGram) uses similar techniques to diagnose GI disorders (https://t.co/tiBlwVWRHQ). This is a non-invasive procedure that uses biosignals to detect abnormalities in a patient's stomach or GI tract.