Intraoperative changes of transcranial Doppler velocity: relation to arterial oxygen content and whole-blood viscosity

Aaslid, 1982, Noninvasive transcranial Doppler ultrasound recording of flow velocity in basal cerebral arteries, J Neurosurg, 57, 769, 10.3171/jns.1982.57.6.0769 Ackerstaff, 1990, Influence of biological factors on changes in mean cerebral blood flow velocity in normal ageing, Neurol Res, 12, 187, 10.1080/01616412.1990.11739941 Ameriso, 1990, Correlates of middle cerebral artery blood velocity in the elderly, Stroke, 21, 1579, 10.1161/01.STR.21.11.1579 Artru, 1987, Reduction of cerebrospinal fluid pressure by hypocapnia, J Cereb Blood Flow Metab, 7, 471, 10.1038/jcbfm.1987.90 Brass, 1989, Transcranial Doppler measurements of the middle cerebral artery, Stroke, 19, 1466, 10.1161/01.STR.19.12.1466 Brown, 1982, Effect of plasma exchange on blood viscosity and cerebral blood flow, BMJ, 284, 1733, 10.1136/bmj.284.6331.1733 Brown, 1985, Regulation of cerebral blood flow in response to changes in blood viscosity, Lancet, 1, 604, 10.1016/S0140-6736(85)92145-2 Brown, 1985, Fundamental importance of arterial oxygen content in the regulation of cerebral blood flow in man, Brain, 108, 81, 10.1093/brain/108.1.81 Keunen, 1996, Nonlinear transcranial Doppler analysis demonstrates age-related changes of cerebral hemodynamics, Ultrasound Med Biol, 22, 383, 10.1016/0301-5629(96)00035-X Korosue, 1992, Mechanisms of cerebral blood flow augmentation by hemodilution in rabbits, Stroke, 23, 1487, 10.1161/01.STR.23.10.1487 Macko, 1993, Arterial oxygen content and age are determinants of middle cerebral artery blood flow velocity, Stroke, 24, 1025, 10.1161/01.STR.24.7.1025 Markwalder, 1984, Dependency of blood flow velocity in the middle cerebral artery on end-tidal carbon dioxide partial pressure, J Cereb Blood Flow Metab, 4, 368, 10.1038/jcbfm.1984.54 Pilato Paf, 1991, Transcranial Doppler, Can J Anaesth, 38, 37, 10.1007/BF03009161 Ringelstein, 1990, Transcranial Doppler sonography, Ultrasound Med Biol, 16, 745, 10.1016/0301-5629(90)90039-F Schregel, 1994, Transcranial Doppler sonography during isoflurane/N2O anaesthesia and surgery: Flow velocity, “vessel area” and “volume flow.”, Can J Anaesth, 41, 607, 10.1007/BF03010001 Thiel, 1992, Transcranial Doppler sonography, Br J Anaesth, 68, 388, 10.1093/bja/68.4.388