摘要
目的探讨干燥综合征(SS)腮腺病变的血流动力学特征及对柠檬酸刺激试验的反应。方法对43例SS患者(SS组)、32名健康志愿者(对照组)进行双侧腮腺多普勒超声检查,分别在基础状态和柠檬酸刺激试验中检测腮腺段颞浅动脉和腮腺实质内小动脉的峰值流速(PSV)和阻力指数(RI),并进行统计学分析。结果基础状态下,SS组腮腺实质内小动脉RI低于对照组(P<0.01);柠檬酸刺激试验中,对照组颞浅动脉和实质内小动脉PSV均高于基础值,RI均低于基础值(P均<0.01);SS组各测值较基础值均无明显变化。酸刺激后,对照组颞浅动脉PSV升高(10.81±16.66)%,实质内小动脉PSV升高(46.36±37.70)%,差异有统计学意义(P<0.01)。结论 SS腮腺病变的实质小动脉RI减低,腮腺供血动脉对酸刺激的反应性降低。多普勒超声有助于评价腮腺功能受损的程度。
Objective To evaluate the hemodynamic features of parotid glands in patients of Sjgren＇s syndrome （SS） with Doppler ultrasonography. Methods Totally 43 SS patients （SS group） and 32 healthy people （control group） underwent parotid gland sonographic examination. PSV and RI of the superficial temporal artery and intra-parotid branch before and after the citric acid stimulation were measured and statistically analyzed. Results The baseline RI of intra-parotid branch was significantly lower in SS group than that in control group. In control group, PSV of both arteries were higher than baseline, and RI of both arteries were lower than baseline after citric acid stimulation （P0.01）. In the SS group, none of the parameters changed significantly after citric acid stimulation. In the stimulation test, PSV of superficial temporal artery increased by （10.81±16.66）%, while the intra-parotid branch increased by （46.36±37.70）% in control group （P0.01）. Conclusion The baseline RI of the intra-parotid artery branch in SS patients is lower than normal. The reactivity of the parotid supplying artery to the acid stimulation is impaired in SS patients. Doppler ultrasonography may be useful in evaluation of SS parotid involvement.
出处
《中国医学影像技术》
CSCD
北大核心
2010年第9期1674-1677,共4页
Chinese Journal of Medical Imaging Technology
关键词
干燥综合征
腮腺
超声检查
多普勒
Sjgren＇s syndrome
Parotid gland
Ultrasonography
Doppler
