The perfusion index measured by the pulse oximeter affects the agreement between ClearSight and the arterial catheter-based blood pressures: A prospective observational study.
Masashi YokoseTakahiro MiharaMasahiro TakayaTakumi YamamotoYusuke SaigusaShunsuke TakakiTakahisa GotoPublished in: PloS one (2019)
PI ≤1 was associated with a large SD of the bias between the devices. The PI value could be a real-time indicator of ClearSight precision.