摘要: |
目的 探讨二维斑点追踪成像(2D-STI)技术评价代谢综合征(MS)患者亚临床左室收缩及舒张功能异常的临床价值。资料与方法 选取符合2004年中华医学会糖尿病学分会建议的诊断标准的MS患者30例为MS组,测量其常规超声心动图检查指标,并采用2D-STI技术检测和计算左室整体的收缩期峰值纵向应变、圆周应变、左室心底部及心尖部旋转角度、左室峰值扭转速度及解旋速度,计算左室扭转角度及等容舒张期解旋率。另取同期健康体检者30例为对照组进行对照。结果 与对照组相比,MS组的左房前后径、左室舒张末期内径、舒张末期室间隔厚度及左室后壁厚度、左室质量指数及E/e比值均明显增大(P均<0.01),而E/A比值明显减小(P<0.01)。两组间左室射血分数差异无统计学意义(P>0.05)。与对照组相比,MS组的左室整体纵向峰值应变明显减低(P<0.01)、左室峰值扭转角度增大(P<0.01)、左室峰值扭转速度及左室峰值解旋速度均明显加快(P均<0.05),而解旋率明显减低(P=0.01)。两组间左室整体圆周峰值应变差异无统计学意义(P>0.05)。结论 MS患者早期即存在左室结构和收缩、舒张功能的改变,2D-STI技术较传统超声心动图更能准确、全面反映左室心肌早期收缩和舒张功能的变化。 |
关键词: 代谢综合征 超声心动描记术 二维斑点追踪成像技术 心室功能,左 |
DOI: |
投稿时间:2017-09-06修订日期:2017-10-17 |
基金项目:福建省卫生厅青年科研课题(2013-2-125) |
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Application of Two-Dimensional Speckle Tracking Imaging to Assessment of Left Ventricular Systolic and Diastolic Function in Patients with Metabolic Syndrome |
liuhuilan |
(Quanzhou First Hospital Affiliated to Fujian Medical University) |
Abstract: |
Objective To assess the clinical value of two-dimensional speckle tracking imaging(2D-STI) in detecting the left ventricular systolic and diastolic function of the patients with metabolic syndrome(MS). Methods In case group, thirty MS patients were selected and examined for common echocardiography, and 2D-STI were also used to measure the left ventricular global peak systolic longitudinal strain(GLS),global peak circumferential strain(GCS), the basal and apical rotation angle, peak twisting and untwisting speed, calculate twisting angle and untwisting rate. Another thirty healthy volunteers were enrolled as control. Results Compare to control, MS patients’ left atrial diameter, left ventricular end diastolic diameter, interventricular septal thickness, left ventricular posterior wall thickness, Left ventricular mass index and E/e ratio were lager(P<0.01), and E/A ratio was lower(P<0.01). Left ventricular ejection fraction(LVEF)had no significant difference between two groups(P>0.05). Compare to control, MS patients’GLS was lower(P<0.01), twisting angle was larger(P<0.01), peak twisting and untwisting speed were faster(P<0.05) and untwisting rate was lower(P=0.01). GCS had no significant difference between two groups(P>0.05).Conclution The left ventricular systolic and diastolic function of MS patients had reduced at early stage. 2D-STI technology can be detection of quantitative changes in left ventricular function in MS patients. |
Key words: Metabolic syndrome Echocardiography Speckle tracking imaging Ventricular function, left |