A novel, non-invasive method of respiratory monitoring for use with stereotactic procedures

► VPT is a low-profile, non-invasive respiratory monitor used with a stereotaxic frame. ► VPT detects small fluctuations in pressure at the nares during breathing. ► This technique measures rate and relative tidal volume. ► VPT is accurate, reliable, and compares well against whole-body plethysmography.