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Indications for the appointment of ultrasound with a doppler

The effect of Doppler in the case of medicalThe research is that ultrasonic waves are reflected from the blood particles, and this change will depend directly on the blood flow velocity. Ultrasound with a special sensor is used to assess blood flow through the main vessels (arteries, veins) of the neck, arms, legs. The study can reveal the difficulty of blood flow in the narrowing of blood vessels, detect blood clots in the veins. To assess blood circulation in the vessels of the brain, this study is used in the following cases: to determine the risk of stroke, cerebral circulation, vasospasm, after aortocoronary shunting (to determine the probability of embolism), as well as in neurosurgical patients. Indications for doppler sonography are: migraine headaches, dizziness, vegetative-vascular dystonia, headaches of unknown origin. The doppler of the neck vessels reveals pathologies of vertebral and carotid arteries. This study is used with the following symptoms: head noise, transient ischemic attacks with temporary paralysis of half of the body or arm, dizziness, temporary blindness in one eye, flashing before the eyes, short-term loss of consciousness, headaches, temporary imbalances, falls, not accompanied by loss consciousness. Ultrasound examination of the vessels of the lower extremities allows revealing the pathology of the arteries and veins. It is performed with the following symptoms and diseases: pathology of the arteries and veins of the lower limbs, intermittent claudication, hypersensitivity of the legs to cold, chilliness, numbness in the feet, varicose veins, edema of the shins, heaviness in the legs, skin pigmentation on the legs.

Doppler ultrasound in pregnancy

US doppler is prescribed during pregnancy fordetermining the rate of fetal blood flow in order to assess the functioning of the placenta. This study is carried out if there are concerns about the intrauterine growth of the child, as well as the increase in blood pressure in a woman. A cardiotocograph (special kind of doppler) is used to evaluate the fetal heart rate. If the pregnant woman senses the movements of the baby on a regular basis, most likely this study will not be prescribed. The fetus is connected to the placenta through the umbilical cord, 2 arteries and 1 vein pass through it. Through the blood from the placenta to the child receives nutrients and oxygen. If the blood flow is difficult, the fetus may not receive enough of them, this can cause a slowdown in its growth. In the case of detecting a high resistance to the blood flow through the vessels, the question of early delivery may arise.