Nonstenotic Internal Carotid Arteries: Effects of Age and Blood Pressure at the Time of Scanning on Doppler US Velocity Measurements
| العنوان: | Nonstenotic Internal Carotid Arteries: Effects of Age and Blood Pressure at the Time of Scanning on Doppler US Velocity Measurements |
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| المؤلفون: | Rendon C. Nelson, Mark A. Kliewer, James D. Bowie, Barbara A. Carroll, Barbara S. Hertzberg, Douglas H. Sheafor, E B Spencer |
| المصدر: | Radiology. 220:174-178 |
| بيانات النشر: | Radiological Society of North America (RSNA), 2001. |
| سنة النشر: | 2001 |
| مصطلحات موضوعية: | Adult, Carotid Artery Diseases, Male, Aging, medicine.medical_specialty, Systole, Systolic hypertension, education, Diastole, Hemodynamics, Blood Pressure, Sensitivity and Specificity, Reference Values, Internal medicine, medicine.artery, Laser-Doppler Flowmetry, medicine, Humans, Radiology, Nuclear Medicine and imaging, Prospective Studies, Aged, Aged, 80 and over, business.industry, Blood Pressure Determination, Ultrasonography, Doppler, Middle Aged, Laser Doppler velocimetry, medicine.disease, Pulse pressure, Blood pressure, Anesthesia, Circulatory system, Cardiology, Regression Analysis, Female, Internal carotid artery, business, Blood Flow Velocity, Carotid Artery, Internal |
| الوصف: | To assess the effects of age and blood pressure at the time of scanning on internal carotid artery velocities and cross-sectional diameter at Doppler ultrasonography (US).During 12 months, 1,020 consecutive patients underwent internal carotid artery Doppler US. No or minimal arterial disease was found in 142 patients (67 women, 75 men). Blood pressure was recorded prior to examination. The angle-corrected internal carotid artery peak systolic and end-diastolic velocities were obtained. The effects of systolic blood pressure, diastolic blood pressure, pulse pressure, age, chronic hypertension, and medications for hypertension on velocities were evaluated by using linear regression analysis.Peak systolic velocity was influenced by age (P =.008), systolic blood pressure (P =.009), diastolic blood pressure (P =.003), and pulse pressure (P =.017) but not history of hypertension (P =.53) or antihypertensive medication use (P =.77). Increasing age decreased peak systolic velocity by 0.34 cm/sec/y. End-diastolic velocity was influenced by age (P.001) but not by systolic, diastolic, or pulse pressure (all P values were.13).Internal carotid artery peak systolic velocities decrease with advancing age and increase with increasing pulse pressure. The effects of blood pressure at the time of scanning are small, but isolated systolic hypertension could cause increases in spurious velocity. |
| تدمد: | 1527-1315 0033-8419 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03caf64c2933db38e90b90776bde7a03 https://doi.org/10.1148/radiology.220.1.r01jl33174 |
| رقم الأكسشن: | edsair.doi.dedup.....03caf64c2933db38e90b90776bde7a03 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15271315 00338419 |
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