What Is a Doppler Echocardiogram?
The normal reference values of each valve in the blood flow spectrum are as follows: Tricuspid valve maximum flow: Adult: 30-70cm / s Child: 50-80cm / s Maximum pulmonary valve flow: Adult: 60-90cm / s Child: 50-105cm / s Maximum mitral valve flow: Adult: 60-130cm / s Children: 80-130cm / s Left ventricular outflow tract maximum flow rate: Adult: 70-110cm / s Child: 70-120cm / s Aortic valve maximum flow rate: Adult: 100-170cm / s Child: 120-180cm / s
- Doppler echocardiography: There are many red blood cells in the blood, which can reflect and scatter the ultrasound and can be considered as a tiny sound source. When the probe is placed in the intercostal space, it emits ultrasonic waves. When the red blood cells flow in the heart or large blood vessels, the sound frequency scattered by red blood cells changes. As the red blood cells move toward the probe, the reflected sound frequency increases and vice versa. The difference between the sound frequency produced when this red blood cell and the probe are in relative motion is called a Doppler shift. It can show the speed, direction and nature of blood flow. Doppler echocardiography is further divided into pulse Doppler echocardiography, continuous wave Doppler echocardiography, and color Doppler echocardiography. The most commonly used is pulsed Doppler echocardiography, which can trace real-time Doppler spectrograms of blood flow at any point in the heart in the case of two-dimensional image monitoring positioning.
- Name
- Doppler echocardiography
- category
- Ultrasound (B ultrasound, A ultrasound)
Normal Doppler echocardiogram
- The normal reference values of each valve in the blood flow spectrum are as follows: Tricuspid valve maximum flow: Adult: 30-70cm / s Child: 50-80cm / s Maximum pulmonary valve flow: Adult: 60-90cm / s Child: 50-105cm / s Maximum mitral valve flow: Adult: 60-130cm / s Children: 80-130cm / s Left ventricular outflow tract maximum flow rate: Adult: 70-110cm / s Child: 70-120cm / s Aortic valve maximum flow rate: Adult: 100-170cm / s Child: 120-180cm / s
Clinical significance of Doppler echocardiography
- Doppler echocardiography can be used to measure the blood flow direction, blood flow properties, blood flow velocity, blood flow, and the path of abnormal blood flow bundles. The abnormal blood flow bundles can assist two-dimensional echocardiography to identify the location and movement of structural abnormalities To determine the abnormal shunt phase.
Doppler echocardiographic considerations
- No contraindications, no side effects on the human body. Pay attention to the examination, relax and cooperate with the doctor.
Doppler echocardiography- related diseases
- Apical hypertrophic cardiomyopathy, ventricular muscle densification, Marfan syndrome, pediatric heart failure, pediatric endocardial elastofibrosis, pediatric heart-facial syndrome, pediatric atrial fibrillation, pediatric Fallot tetralogy, Kawasaki disease, Papillary muscle insufficiency
Doppler echocardiography- related symptoms
- Jue heartache, darkened in front of the eyes after squatting, small jaw, first heart sound hyperthyroidism, pathological Q wave, comfortable after sighing, atrioventricular duct malformation, fat infiltration, Osler nodules on the fingertips, and subdigitar or toenail lobes Bleeding