Hãy nhìn vào hình dạng và mật độ của tín hiệu. Một tín hiệu như dày đặc như dòng chảy về phía trước cho thấy nôn nặng, cường độ thấp hoặc tín hiệu không đầy đủ trào ngược nhẹ, và một tín hiệu trung gian vừa nôn. Depressurisation nhanh chóng của các tín hiệu gây ra một tín hiệu 'con dao găm hình " | _5 Echocardiography A Practical Guide for Reporting Figure Mitral prolapse. The posterior leaflet prolapses a and the regurgitant jet is directed anteriorly b away from the abnormal leaflet Valve disease 55 Figure Functional mitral regurgitation. In functional regurgitation as a result of symmetric tenting of the leaflets the regurgitant jet is central if one leaflet is slightly more restricted than the other the jet will be directed towards that leaflet The duration of the jet using colour M-mode Is it holosystolic or present only in part of systole 3. Continuous-wave signal Look at the shape and density of the signal. A signal as dense as forward flow suggests severe regurgitation a low intensity or incomplete signal mild regurgitation and an intermediate signal moderate regurgitation. Rapid depressurisation of the signal causes a dagger-shaped signal and is a sign of severe regurgitation. 4. Pulsed Doppler A high transmitral E-wave velocity m s in the absence of mitral 19 stenosis suggests severe regurgitation. A pulsed sample in the pulmonary vein at a distance from the jet can aid quantification although this is most useful in TOE. Blunting of _56_ Echocardiography A Practical Guide for Reporting Figure Posterior leaflet restriction. In this patient with an inferoposterior myocardial infarction the posterior leaflet is restricted a and the regurgitant jet is directed under the abnormal leaflet b
