Gastroenterology

We designed a stimulus-based heart rate variability protocol (active standing, deep breathing and stomach distention) and used logistic regression to weigh what each test adds to assessing autonomic function in chronic constipation.

Abdominal ultrasound recordings of the healthy human colon, analyzed with image segmentation and frequency analysis software, reveal three distinct rhythmic motor patterns at 1, 3 and 12 cycles per minute.