【摘要】 【目的】研究腮腺血流变化与唾液分泌的关系。【方法】应用彩色多普勒超声观测 5 3名健康成人酸刺激前后腮腺小动脉血流变化 ,同时测定唾液流率的变化。【结果】彩色多普勒超声能清楚显示腮腺血流变化 ,酸刺激前后血流各项指标和唾液流率均有显著性差别 (P <0 0 5 ) ,包括最大收缩期流速 (18 4cm/svs2 3 1cm/s) ,最小舒张期流速 (0 1cm/svs 2 0cm/s) ,阻力指数 (1 0vs0 9) ,搏动指数 (5 6vs3 8) ,唾液流率 (0 9g/minvs2 5 g/min)。Pearson相关分析表明 ,酸刺激后唾液分泌与血液最高流速呈正相关 (r=0 3,P <0 0 5 ) ,与腮腺内血管阻力呈负相关 (r=- 0 3,P <0 0 5 )。【结论】生理刺激结合彩色多普勒超声技术 ,有望成为临床上评价唾液腺功能的一种方法更多还原

【Abstract】 To study the relationship between the blood flow in parotid gland and salivary secretion. Color Doppler sonography was used to evaluate the blood flow in parotid gland of 53 healthy volunteers, aged 17 to 25 years and the results were compared to the changes of the salivary flow rates before and after a stimulation test with lemon. Color Doppler sonography could clearly reveal the blood flow in parotid gland, There were significant differences in peak systolic velocities(18 4 cm/s vs 23 1 cm/s), minimum diastolic velocities (0 1 cm/s vs 2 0 cm/s), resistive index (1 0 vs 0 9), pulsative index (5 6 vs 3 8) and salivary flow rates (0 9 g/min vs 2 5 g/min) before and after stimulation (t test: P<0 05). Results of Pearson correlation analysis showed that after stimulation, the salivary flow rate was positively related to the maximum velocity (r=0 3, P<0 05), but negatively related to vascular resistance (r=-0 3, P<0 05). [Conclusion] Doppler studies with stimulation tests can serve as an alternative technique to assess salivary function.更多还原