Studies on Two-dimensional Echocardiographic Evaluation of Qp/Qs Tetralogy of Fallot
- VernacularTitle:二维Doppler超声评价四联症Qp/Qs比值的探讨
- Author:
Shouping LI
;
Hanying LIU
- Publication Type:Journal Article
- Keywords:
two-dimensional Doppler echocardiography,Tetralogy of Fallot;
pulmonary blood flow:systemic blood flow
- From:
Chinese Journal of Ultrasonography
1993;2(1):8-10,插6
- CountryChina
- Language:Chinese
-
Abstract:
It was developed that a new method for measuring the ratio of pulmonary blood flow tosystemic biood flow by two-dimensional Doppler echocardiography.Qp and Qs blood flow were consid-ered to be propotional to the mitral and tricuspid Doppler flow velocity time integral multipled respectively by mitral or tricuspid valve ring diameters(MVID or TVID),I.e.MVID/TVID was equal to Qp/Qs.With the method,we calculated the Qp/Qs ratio close to 1:1(0.939+/-0.083)in 18 normal Per-sons,0-656+/-0.167 in 15 patients with Tetralogy of Fallot.Qp/Qs in TOF corrected negativly With hemoglobin.Our results demonstrated that conventional Doppler mdthod to calculate the Qp/Os ratio can be simplified.
