Kiley J P, Eldridge F L, Millhorn D E
Comp Biochem Physiol A Comp Physiol. 1984;79(4):631-4. doi: 10.1016/0300-9629(84)90460-2.
To determine if rectal temperature is an adequate index of brain temperature during changing thermal conditions, we measured rectal, cerebral cortical, and carotid arterial blood temperatures simultaneously during whole body cooling in adult cats. The mean steady state rectal, brain and carotid arterial temperatures at the onset of cooling were: 39.2 +/- 0.2, 38.5 +/- 0.2, and 38.3 +/- 0.3 degrees C, respectively. Rectal temperature decreased faster than both brain and arterial blood, while only a small temperature difference was observed between brain and arterial blood, brain always exceeding blood. Rectal temperature cannot be considered an adequate index of brain temperature. Carotid arterial temperature is a better estimate of brain temperature.
为了确定在热条件变化期间直肠温度是否是脑温的合适指标，我们在成年猫全身冷却过程中同时测量了直肠、大脑皮质和颈动脉血的温度。冷却开始时的平均稳态直肠、脑和颈动脉血温度分别为：39.2±0.2、38.5±0.2和38.3±0.3摄氏度。直肠温度下降比脑和动脉血都快，而在脑和动脉血之间仅观察到小的温差，脑温总是超过血温。直肠温度不能被认为是脑温的合适指标。颈动脉血温度是对脑温的更好估计。
