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目的探讨超声二维斑点追踪(STI)在冠状动脉狭窄病变诊断中的应用价值。方法选取冠状动脉狭窄病患者50例作为观察组,患者均经冠状动脉造影(CAG)检查确诊,同时选取50例健康体检者作为对照组,对这两组受检者的STI检查结果进行对比分析。结果观察组后间隔(心尖段、中间段)、前间隔(中间段、心尖段)、前壁(心尖段、中间段)的收缩期纵向峰值应变与对照组相比,差异有统计学意义(P<0.05);观察组前间隔(中间段、心尖段)、前壁(心尖段、基底段、中间段)的收缩期纵向峰值应变率与对照组相比,差异有统计学意义(P<0.05)。结论若患者存在冠状动脉狭窄的情况,采用STI可以较好对患者的冠状动脉狭窄病变情况进行反映,对其异常心肌段进行记录,从而对患者的疾病治疗提供指导依据。
Objective To investigate the value of ultrasound two-dimensional speckle tracking (STI) in the diagnosis of coronary artery stenosis. Methods Fifty patients with coronary artery stenosis were selected as the observation group. The patients were diagnosed by coronary angiography (CAG). Fifty healthy subjects were selected as the control group. The results of STI examination were compared between the two groups . Results Compared with the control group, the longitudinal peak strain of systolic phase in the anterior segment (middle segment, apical segment) and anterior wall (apical segment, middle segment) in the observation group was significantly different P <0.05). Compared with the control group, the longitudinal peak strain rate of systolic phase in the anterior segment (middle segment, apical segment) and anterior wall (apical segment, basal segment, middle segment) in the observation group was significantly different (P < 0.05). Conclusion If the patient has coronary artery stenosis, using STI can better reflect the patient’s coronary artery stenosis, and record the abnormal myocardial segments, so as to provide guidance for the treatment of the patient’s disease.