Teien D, Karp K, Wendel H, Human D G, Nanton M A
Department of Clinical Physiology, University of Umeå, Sweden.
Acta Paediatr Scand. 1991 Mar;80(3):355-60. doi: 10.1111/j.1651-2227.1991.tb11862.x.
Thirty-one patients with ventricular septal defect were evaluated with Echo Doppler cardiography and colour flow mapping. The ventricular septal defect area was estimated by measurement of the jet diameter by colour flow mapping. The ventricular septal defect flow was calculated as the product of the cross-sectional area of the ventricular septal defect and the velocity time integral of flow through the defect. In ten patients the diameter obtained by colour flow mapping was compared with the diameter obtained at angiography, r = 0.88 (SD = 0.14 cm). The aortic flow was calculated as the product of left ventricular outflow tract cross-sectional area and the corresponding velocity time integral. QP/QS ratio was estimated as (ventricular defect flow + aortic flow)/aortic flow and compared to estimates by a radionuclide or oximetric method. A correlation of r = 0.95 (SD = 0.23) was found.
对31例室间隔缺损患者进行了超声心动图和彩色血流图评估。通过彩色血流图测量射流直径来估计室间隔缺损面积。室间隔缺损流量通过室间隔缺损横截面积与经缺损血流速度时间积分的乘积来计算。在10例患者中，将彩色血流图测得的直径与血管造影测得的直径进行比较，r = 0.88（标准差=0.14 cm）。主动脉流量通过左心室流出道横截面积与相应的速度时间积分的乘积来计算。QP/QS比值估计为（室间隔缺损流量+主动脉流量）/主动脉流量，并与放射性核素或血氧测定法的估计值进行比较。发现相关性r = 0.95（标准差=0.23）。
