1. Detection of Lower Torso Ischemia by Near-Infrared Spectroscopy During Cardiopulmonary Bypass in a 6.8-Kg Infant With Complex Aortic Anatomy 
Mathias Redlin, MD, Wolfgang Boettcher, ECCP, Michael Huebler, MD, Felix Berger, MD, Roland Hetzer, MD, Andreas Koster, MD, Wolfgang M. Kuebler, MD 
The Annals of Thoracic Surgery 
Volume 82, Issue 1, Pages (July 2006)
DOI: /j.athoracsur
Copyright © 2006 The Society of Thoracic Surgeons Terms and Conditions

2. Fig 1
Near-infrared spectroscopy measurement during the critical period. O2Hb = change in oxygenated hemoglobin (μmol/l). cHb = change in total hemoglobin (μmol/l). HHb = change in deoxygenated hemoglobin (μmol/l). TOI = Tissue Oxygenation Index (relation of oxygenated hemoglobin to total hemoglobin) (%). THI = Tissue Hemoglobin Index (relative value of total hemoglobin). nTHI = Normalized THI (change in total hemoglobin in relation to base-level hemoglobin).
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2006 The Society of Thoracic Surgeons Terms and Conditions