摘要
采用多平面经食道超声心动图对１６例房间隔缺损患者（男３例，女１３例，平均年龄３１．５岁）的分流量进行了定量研究，均由手术和心导管检查所证实。分流量＝ＶＩＴ·Ａ·ＨＲ·１０－６（ＶＴＩ为跨房间隔缺损的流速积分，Ａ为缺损面积，ＨＲ为心率）。结果显示多平面经食道超声心动图测量的房间隔缺损分流量与心导管测量的Ｑｐ／Ｑｓ高度相关（ｒ＝０．９４，Ｐ＜０．００１），经胸超声心动图测量的Ｑｐ／Ｑｓ与心导管测量的Ｑｐ／Ｑｓ仅中度相关（ｒ＝０．７６，Ｐ＜０．００１），且多平面经食道超声心动图测量的房间隔缺损的最大直径及面积亦与心导管测量的Ｑｐ／Ｑｓ高度相关（ｒ分别为０．９２、０．９４，Ｐ＜０．００１），表明多平面经食道超声心动图为定量评价房间隔缺损分流量提供了一种新的方法。
Transesophageal Dappler color flow imaging was performed in 16 patients (13 women and 3 men age 14～47 years, mean age 31. 5 years ) with atrial septal defects demonstrated by both cardiac catheterization and sugery. The shunt volume was calculated as a product of the defect area,velocity time integral and heart rate (Q=A·VTI·HR·106). The results showed that there was medial correlation of the pulmonary to systemic blood flow ratio measured by transthoracic echocardiography and cardiac catheterization (r=0. 76, P<0. 001 ). The shunt flow volume and area of atrial septal defect measured by transesophageal echocardiography showed a good correlation with the pulmonary to systemic blood flow ratio obtained at cardiac catheterization (r=0. 94, P<0. 001 ). It is calculated that multiplane transesophageal echocardiography is a new method for the assessment of the shunt volume in atrial septal defect.
出处
《中华超声影像学杂志》
CSCD
1996年第1期1-4,共4页
Chinese Journal of Ultrasonography
关键词
超声心动图
房间隔缺损
房缺分流量
multiplane transesophageal echocardiography atrial septal defect shunt volume
