论文部分内容阅读
目的：了解大脑皮层温度与微循环血流量的关系，研究皮层表面高低温形成的机理。方法：用皮层红外热像温度显示法在20只开颅家猫大脑表面选择高低温度点，并在其上使用激光多普勒微循环测量仪进行血流量测量。结果：（1）皮层表面存在温度差，所选择的高温点平均温度为(34．83±1．08)℃，低温点为(32．28±1．19)℃，两者P ＜0．001；（2）在高温点上测量的微血管血流量为311±85．8，低温点上测量的微血管血流量为134±41．7，二者有极显著性差异(P ＜0．001)；(3)在硬脑膜和软脑膜上测量到的血流量无显著性差异(P ＞0．05)。结论：皮层温度的高低与血流量有直接的关系。
Objective: To understand the relationship between cerebral cortex temperature and microcirculation blood flow, to study the formation mechanism of high and low temperature on cortical surface. Methods: The cortical infrared thermography temperature was used to select the high and low temperature spots on the surface of brain of 20 craniocerebral cats. The blood flow was measured by laser Doppler microcirculation measuring instrument. Results: (1) There was a temperature difference on the surface of cortex. The average temperature of high temperature point was (34.83 ± 1.08) ℃ and low temperature point was (32.28 ± 1.19) ℃, both P <0. 001; (2) Microvascular blood flow measured at a high temperature point was 311 ± 85.8 and microvascular blood flow measured at a low temperature point was 134 ± 41.7, both of which had a very significant difference (P <0.001) ; (3) There was no significant difference in blood flow measured on dura and pia mater (P> 0.05). Conclusion: There is a direct relationship between cortical temperature and blood flow.