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中华医学超声杂志(电子版) ›› 2018, Vol. 15 ›› Issue (06) : 440 -444. doi: 10.3877/cma.j.issn.1672-6448.2018.06.009

所属专题: 文献

心血管超声影像学

实时三维超声技术评价左心室心肌致密化不全患者左心房射血功能
李方方1, 任卫东1,(), 宋光1, 吴丹1, 刘开薇1   
  1. 1. 111004 沈阳,中国医科大学附属盛京医院
  • 收稿日期:2017-09-15 出版日期:2018-06-01
  • 通信作者: 任卫东

Evaluation of left atrial ejection function in patients of noncompaction cardiomyopathy by real-time three-dimensional echocardiography

Fangfang Li1, Weidong Ren1,(), Guang Song1, Dan Wu1, Kaiwei Liu1   

  1. 1. Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang 111004, China
  • Received:2017-09-15 Published:2018-06-01
  • Corresponding author: Weidong Ren
  • About author:
    Corresponding author: Ren Weidong, Email:
引用本文:

李方方, 任卫东, 宋光, 吴丹, 刘开薇. 实时三维超声技术评价左心室心肌致密化不全患者左心房射血功能[J]. 中华医学超声杂志(电子版), 2018, 15(06): 440-444.

Fangfang Li, Weidong Ren, Guang Song, Dan Wu, Kaiwei Liu. Evaluation of left atrial ejection function in patients of noncompaction cardiomyopathy by real-time three-dimensional echocardiography[J]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2018, 15(06): 440-444.

目的

应用实时三维超声技术评价左心室心肌致密化不全(LVNC)患者左心房功能,并探讨其在LVNC诊断中的应用价值。

方法

选择2015年2月至2016年8月于中国医科大学附属盛京医院就诊的LVNC患者20例,同时选择同期该院体检的20名年龄相匹配的健康志愿者作为健康对照组。常规超声测量室间隔厚度(IVS)、左心室舒张末期内径(LVEDD)。自动计算得出左心室射血分数(LVEF)。测量组织多普勒二尖瓣口E波峰值(E)、二尖瓣口A波峰值(A),并计算E/A比值。采集左心心尖四腔切面full-volume图像,软件自动输出左心房最大容积(LAVmax)及左心房射血分数(LAEF),并计算LAVmax/体表面积比值。采用独立样本t检验比较LVNC组患者与健康对照组受检者IVS、LVEDD、LVEF、E/A、LAEF、LAVmax/体表面积。

结果

LVNC组患者与健康对照组受检者年龄、IVS、LVEDD、LVEF、E/A差异均无统计学意义。LVNC组患者LAEF、LAVmax/体表面积均高于健康对照组受检者[(62.57±7.36)% vs (50.12±7.00)%,(22.80±8.52)ml/m2 vs (18.00±4.99)ml/m2],且差异均有统计学意义(t=5.3,P<0.01;t=2.1,P<0.05)。

结论

LVNC患者左心室射血功能正常条件下,左心房射血功能已有明显提高。应用实时三维超声技术可以对LVNC患者心脏功能进行评估。

Objective

To assess left atrial ejection function by left atrium ejection fraction (LAEF) in left ventricular noncompaction (LVNC) patients by real-time three-dimensional echocardiography (RT3DE) and discuss its value in LVNC diagnosis.

Methods

The study comprised 20 patients with the diagnosis of LVNC including 3 cases in the group of 3-16 years old, 8 cases in the group of 17-35 years old, and 9 cases in the group of 36-55 years old. Twenty healthy age-matched people were chosen as controls. All patients underwent conventional two-dimensional echocardiography and RT3DE with full-volume image.

Results

The measures of interventricular septum thickness, left ventricularend-diastolic diameters and left ventricular ejection force in the two-dimensional echcardiography showed no differences. The average LAEF of LVNC grroup was higher than that of the control group (t=5.3, P<0.01). The average LAEF of LVNC group was (62.57±7.36)% while that of the control group was (50.12±7.00)%.

Conclusions

The result showed obvious difference. It showed that the left atrial ejection function had increased significantly even though the left ventricular systolic function was normal. RT3DE can assess the heart function of LVNC patients.

图1,2 左心室心肌致密化不全超声表现。图1为二维超声伪彩下显示心尖网状非致密心肌结构;图2为彩色多普勒血流成像显示非致密心肌间隙血流充盈
图3~5 QLab软件实时三维超声图像分析。图3为实时三维超声分析左心房容积并构建模型;图4为软件自动绘制出左心房容积变化曲线;图5为实时三维超声分析左心房容积并显示islice图像
表1 LVNC组患者与健康对照组受检者年龄及常规超声心动图参数比较(±s
表2 LVNC组患者与健康对照组受检者LAEF、LAVmax/体表面积比较(±s
图6,7 观察者内(图6)与观察者间(图7)采用实时三维技术测量左心房最大容积/体表面积一致性的Bland-Altman分析图
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