Carotid Artery Ultrasound
Health Checkups
estimated about CNY 200-500
(estimated about USD 30-70)
30 min
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Description
A carotid artery ultrasound assesses blood flow and detects plaque buildup to help prevent stroke; patients in China may need it for dizziness, TIA, or neck bruit evaluation, with costs typically ranging ¥200–500 and booking support available through ChinaMedicalHub.
Main Uses
Carotid artery ultrasound is primarily used for: 1. Assessing the risk of stroke by evaluating the degree of carotid artery stenosis, 2. Monitoring the progression of atherosclerotic disease, 3. Guiding treatment decisions, including medical, surgical, or endovascular interventions, 4. Evaluating the effectiveness of treatments, 5. Screening for asymptomatic carotid artery disease in high-risk patients
Normal Range
The normal range for a carotid artery ultrasound typically includes: Intima-media thickness (IMT) less than 1.0 mm, no presence of plaques, and blood flow velocities within the following ranges: Peak Systolic Velocity (PSV) <125 cm/s, End Diastolic Velocity (EDV) <40 cm/s, and Pulsatility Index (PI) between 0.8-1.2.
Low Values - Possible Causes
Low values in carotid artery ultrasound, such as reduced blood flow velocity, can be caused by: 1. Hypotension or low blood pressure, 2. Severe anemia, 3. Cardiac output reduction, 4. Vascular spasm, 5. Medications that lower blood pressure or heart rate
High Values - Possible Causes
High values in carotid artery ultrasound, such as increased blood flow velocity or thickened intima-media, can be due to: 1. Atherosclerosis, 2. Carotid artery stenosis, 3. Inflammation or infection, 4. Fibromuscular dysplasia, 5. Post-stenotic dilatation
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