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. Author manuscript; available in PMC: 2015 Jun 1.
Published in final edited form as: Magn Reson Med. 2013 Jul 10;71(6):2035–2042. doi: 10.1002/mrm.24868

Table 2.

Physiologic responses to hyperoxia challenge at 3T and 7T (Mean ± STD, N=4).

Normoxia Hyperoxia
B0 EtO2 EtCO2 T2 Yv EtO2 EtCO2 T2 Tv
3T 135±3 41±3 60.3±5.9 60.5±3.6 697±6 39±2 77.2±8.3 68.9±3.7
7T 133±2 41±3 20.5±4.3 60.0±5.6 701±2 38±2 29.7±6.9 69.0±6.1

B0 – field strength, EtO2 – end-tidal O2 (mmHg), EtCO2 – end-tidal CO2 (mmHg), T2 – in vivo blood T2 (ms), Yv – venous blood oxygenation (%).