Doppler Ultrasound
Diagnostic Centres are equipped with Doppler ultrasonography. This is useful in cardiovascular studies of the vascular system and essential in many areas such as determining reverse blood flow in the liver vasculature in portal hypertension.
Uses :
Transcranial Doppler
Transcranial color Doppler (TCCD) measure the velocity of blood flow through the brain's blood vessels transcranially (through the cranium). They are used to help diagnose emboli, stenosis, vasospasm from a subarachnoid hemorrhage (bleeding from a ruptured aneurysm), and other problems. The tests are effective for detecting sickle cell disease, ischemic cerebrovascular disease, subarachnoid hemorrhage, arteriovenous malformations, and cerebral circulatory arrest.
Blood vessels
Vascular ultrasonography evaluate central (abdominal) and peripheral arteries and veins; it helps determine the amount of vascular stenosis (narrowing) or occlusion (complete blockage) within an artery; it assists in ruling out aneurysmal disease; and it is the main aid to rule out thrombotic events.
Carotid ultrasonography
Ultrasonography of deep venous thrombosis
Ultrasonography of chronic venous insufficiency of the legs
Kidneys
Doppler ultrasonography is widely used in renal ultrasonography. Renal vessels are easily depicted by the color Doppler technique in order to evaluate perfusion.
Heart
Doppler echocardiography is the use of Doppler ultrasonography to examine the heart. An echocardiogram can, within certain limits, produce accurate assessment of the direction of blood flow and the velocity of blood and cardiac tissue at any arbitrary point using the Doppler effect.
Doppler fetal monitor
Doppler fetal monitors use the Doppler effect to detect the fetal heartbeat for prenatal care.