Wael Hassanein, MD, Alexander A

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Intraoperative Transit Time Flow Measurement: Off-Pump Versus On-Pump Coronary Artery Bypass  Wael Hassanein, MD, Alexander A. Albert, MD, Bert Arnrich, MS, Joerg Walter, PhD, Ina Carolin Ennker, MD, Ulrich Rosendahl, MD, Stefan Bauer, MD, Juergen Ennker, MD  The Annals of Thoracic Surgery  Volume 80, Issue 6, Pages 2155-2161 (December 2005) DOI: 10.1016/j.athoracsur.2005.03.138 Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

Fig 1 (A) Flow measurement tracing in a graft with pulsatile index (PI) of 1.4. (B) Flow measurement tracing in a graft with PI of 2.6. (C) Flow measurement tracing in a graft with PI of 8.1. (CX = graft to a branch from the circumflex [obtuse marginal]; LIMA = left internal mammary artery; RIVA = ramus interventricularis anterior; RIVP = ramus interventricularis posterior.) The Annals of Thoracic Surgery 2005 80, 2155-2161DOI: (10.1016/j.athoracsur.2005.03.138) Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

Fig 2 Cumulative distribution of pulsatile index (PI) in different coronary territories. (CPB = cardiopulmonary bypass; D = diagonal; LAD = left anterior descending; OM = obtuse marginal; OPCAB = off-pump coronary artery bypass grafting; RCA = right coronary artery.) The Annals of Thoracic Surgery 2005 80, 2155-2161DOI: (10.1016/j.athoracsur.2005.03.138) Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions