Fig 2 Regression analysis between transpulmonary pressure and cerebral perfusion pressure during high-frequency oscillatory ventilation (a) and pressure.

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Fig 2 Regression analysis between transpulmonary pressure and cerebral perfusion pressure during high-frequency oscillatory ventilation (a) and pressure controlled ventilation (b). Data are given as correlation coefficient (r), r<sup>2</sup>, transgression probability (P) and confidence interval (CI 0.95). From: Initiation of high-frequency oscillatory ventilation and its effects upon cerebral circulation in pigs: an experimental study Br J Anaesth. 2006;97(4):525-532. doi:10.1093/bja/ael215 Br J Anaesth | © The Board of Management and Trustees of the British Journal of Anaesthesia 2006. All rights reserved. For Permissions, please e-mail: journals.permissions@oxfordjournals.org

Fig 1 Illustration of the experiment. From: Initiation of high-frequency oscillatory ventilation and its effects upon cerebral circulation in pigs: an experimental study Br J Anaesth. 2006;97(4):525-532. doi:10.1093/bja/ael215 Br J Anaesth | © The Board of Management and Trustees of the British Journal of Anaesthesia 2006. All rights reserved. For Permissions, please e-mail: journals.permissions@oxfordjournals.org