| 蒋文莉,郭瑞强,周青,郝力丹,周立明,陈金玲.应变率、射血分数及校正的Q-V峰值间期评价不同构型高血压患者左室收缩功能的比较[J].中国医学影像技术,2005,21(10):1503~1505 |
| 应变率、射血分数及校正的Q-V峰值间期评价不同构型高血压患者左室收缩功能的比较 |
| Comparison among strain rate, ejection fraction and corrected Q-V peak interval in evaluating systolic function in hypertension patients with different left ventricular patterns |
| 投稿时间：2005-07-02 修订日期：2005-08-27 |
| DOI： |
| 中文关键词: 应变率成像 原发性高血压 校正的Q-V峰值间期 左室构型 |
| 英文关键词:Strain rate imaging Essential hypertension Corrected Q-V peak interval Pattern of left ventricle |
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| 中文摘要: |
| 目的 探讨收缩期应变率与校正的Q-V峰值间期及射血分数的关系及其临床应用价值。方法 55例高血压患者(LVN组25例,LVR组30例)和30例健康人,分别测量每例患者各室壁中间段和基底段的平均收缩期应变率,射血分数及校正的Q-V峰值间期。结果 收缩期应变率的平均值与校正的Q-V峰值间期及射血分数相关性良好(相关系数分别为r＝-0.70和r＝-0.86,P<0.001)。收缩期应变率在3组之间均有显著性差异(P值均<0.05)。校正的Q-V峰值间期和射血分数仅在高血压LVR组与其他二组之间有显著性差异(P值均<0.05)。结论 应变率成像为临床提供了一个敏感、简便而可靠的评价高血压患者心肌收缩功能的指标。 |
| 英文摘要: |
| Objective To assess the ability of strain rate imaging (SRI) for left ventrical systolic function and to explore the relationship among left ventricular (LV) peak systolic strain rate, corrected Q-V peak interval and left ventricular ejection fraction (LVEF) in essential hypertension patients with different left ventricular patterns. Methods According to the level of LVMI and RWT, patients with hypertension were divided into patterns of normal geometric LV (LVN, n=25) and remodeling LV (LVR), which including concentric remodeling (n=5), concentric hypertrophy (n=11) and eccentric hypertrophy (n=14). Color Doppler imaging was applied to measure the corrected Q-V peak interval and strain rate imaging was applied for obtaining peak systolic strain rate (SSR) of the LV basal and middle segments. LVEF was determined by Simpson's rule in all patients and control subjects. Results In all subjects, mean SSR by SRI of LV wall correlated negatively and closely with corrected Q-V peak interval (r＝-0.700, P<0.001) and with the LVEF (r＝-0.86, P<0.001). Mean SSR was significantly descending in the control groups, LVN group and LVR group (P<0.05). Although corrected Q-V peak interval and LVEF were significantly lower in LVR group than that in LVN group (P<0.05), there was no significant difference between control group and LVN group (P>0.05). Conclusion SRI provides a sensitive, simple and reliable tool to assess global LV function in patients with essential hypertension. |
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