Synonyms
Duplex/Doppler ultrasound (US); Vascular ultrasound
Definition
A blood flow study is a noninvasive imaging technique which is used to measure blood flow and pressure through arteries and veins, as well as chambers and valves of the heart. Doppler ultrasound (US) may be used to diagnose vascular conditions such as cerebral vasospasm, cerebral or limb thrombosis, vascular stenosis, valvular heart disease, and peripheral vascular and aneurysmal disease. It may also be used to evaluate the condition of bypass grafts and blood flow to transplanted organs.
Current Knowledge
Blood flow studies are used most often to study blood flow particularly in the legs, neck, and brain. Blood flow studies such as Doppler US uses a transducer that sends high-frequency sound waves which bounce off of solid objects including red blood cells. The sound waves are reflected back to the transducer. Moving objects, such as the red blood cells, cause a change in pitch of the sound waves (also known as...
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Ivanhoe, C.B., Durand Sanchez, A. (2018). Blood Flow Studies. In: Kreutzer, J.S., DeLuca, J., Caplan, B. (eds) Encyclopedia of Clinical Neuropsychology. Springer, Cham. https://doi.org/10.1007/978-3-319-57111-9_9
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DOI: https://doi.org/10.1007/978-3-319-57111-9_9
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