- Carotid Doppler machine
A carotid Doppler machine (the same ultrasound machine used to evaluate the fetus in pregnant women) is a device which can be used to measure blood flow velocities within the cervical
carotid arteries , as well as thevertebral arteries and sometimes thesubclavian arteries by means of non-invasiveultrasonic scanning in which theDoppler effect is utilized. This can be useful for estimating the effects ofatherosclerotic disease on the lumen in late stages; specifically the level of compromise in blood flow caused by reduction in arterial lumen diameter.Using B-mode scanning (imaging) and very careful technique, the same ultrasound machine can also be used to measure the arterial wall thickening within segments of the
carotid arteries non-invasively. This can be useful for detecting and tracking atherosclerotic disease in early stages. This has been used in clinical research since the early 1990s and is occasionally used by some clinicians.External links
* [http://www.londonxray.com/patients02.asp Carotid Doppler ultrasound]
all these machines have high frequency probes used specifically for the purpose of imaging arteries and veins in full details and they also are equipped with color Doppler, pulsed wave and continuous wave doppler scans and collectively give good information about disease status of these arteries and veins.
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