段凤霞,谢明星,王静,吕清,王新房,王美玲,黄君红,尹晔华.应用波强技术初步评价原发性高血压患者血流动力学变化[J].中国医学影像技术,2009,25(12):2224~2227 |
应用波强技术初步评价原发性高血压患者血流动力学变化 |
Preliminary observation of the hemodynamic changes of primary hypertension with wave intensity |
投稿时间:2009-06-03 修订日期:2009-06-24 |
DOI: |
中文关键词: 波强 超声检查 颈动脉 高血压 |
英文关键词:Wave intensity Ultrasonography Carotid arteries Hypertension |
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中文摘要: |
目的 探讨波强(WI)技术评价原发性高血压患者血流动力学变化的临床应用价值。方法 对36例原发性高血压患者和30名年龄匹配的健康成人的颈动脉进行超声扫查,应用WI软件获取WI曲线,测量收缩早期峰值(W1)、收缩晚期峰值(W2)、收缩中期负向区面积(NA)、心电图R波顶点至W1的时间间隔(R-1st)、W1至W2的时间间隔(1st-2nd)及时间标化后的R-1stHR、1st-2ndHR等参数。结果 ①与正常对照组比较,原发性高血压组W1值升高,差异有统计学意义(P<0.01),两组间W2值、NA值、R-1st、1st-2nd、R-1stHR、1st-2ndHR差异无统计学意义(P>0.05)。②W1值与脉压、收缩压呈显著正相关(r=0.66和r=0.55,P<0.01),W2值与脉压、收缩压亦呈显著正相关(r=0.62和r=0.44,P<0.01),W1值、W2值与年龄和DBP无相关性(P>0.05)。结论 WI技术提供的血流动力学参数为临床综合评价高血压患者的心脏、血管功能及其相互作用提供新方法。 |
英文摘要: |
Objective To observe hemodynamic changes in patients with primary hypertension with wave intensity (WI). Methods Carotid arteries of 36 patients with primary hypertension and 30 age-matched normal controls were examined with imaging technique of WI. The following parameters were measured: the first wave peak in early ejection (W1), the second wave peak in late ejection (W2), the negative area during the mid-ejection (NA), the interval between the R wave of the ECG and the first peak of W1 (R-1st), the interval between the first peak and the second peak (1st-2nd), the ratio of R-1st and a cardiac cycle time R-1stHR) and the ratio of 1st-2nd , as well as one cardiac cycle time (1st-2ndHR). Results ①W1 in primary hypertension group increased compared with those of normal controls (P<0.01), while no significant difference of W2, NA, R-1st, 1st-2nd, R-1stHR, 1st-2ndHR was detected (P>0.05). ②Both W1 and W2 correlated positively with pulse pressure (PP) and systolic blood pressure (SBP) (r=0.66, 0.55, P<0.01; r=0.62, 0.44, P<0.01). W1, W2 and age, DBP were not related significantly (P>0.05). Conclusion The hemodynamic parameters of WI technology provide a new way to evaluate the dynamics of the heart and vascular system and their interaction. |
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