Raggi P, Vasavada B C, Rodney E, el-Jandali A, Dogan O, Sacchi T J
Division of Cardiology, Long Island College Hospital, Brooklyn, New York, USA.
Am J Cardiol. 1995 Sep 15;76(8):615-8. doi: 10.1016/s0002-9149(99)80169-6.
The continuity equation should be regarded as the Doppler echocardiographic gold standard for estimation of valve area in patients with aortic stenosis, but a quick, easy, and inexpensive screening test may be desirable in an era of medical cost containment. Aortic valve leaflet separation could be used as such a test. In fact, it could prove especially useful in cases where calculations using the continuity equation or the fractional shortening-velocity ratio are problematic.
连续性方程应被视为评估主动脉瓣狭窄患者瓣膜面积的多普勒超声心动图金标准，但在医疗成本控制的时代，一种快速、简便且经济的筛查测试可能是可取的。主动脉瓣叶分离可用作这样一种测试。事实上，在使用连续性方程或缩短分数 - 速度比进行计算存在问题的情况下，它可能会被证明特别有用。
