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KMID : 1000620050030010006
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International Journal of Vascular Biomedical Engineering
2005 Volume.3 No. 1 p.6 ~ p.13
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Measurement and Clinical Analysis of Carotid Intima, Media and Intima-Media Thickness
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Kim Wuon-Shik
Bae Jang-Ho
Jeong Hwan-Taek
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Abstract
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Individual clinical significance of each layer of CCA (common carotid artery) has not been well studied. We intended to measure the intima thickness (IT), media thickness (MT), and intima-media thickness (IMT) of CCA separately and tried to analyze the clinical significance. One hundred fifty one consecutive patients (mean age: years; 77 males, 74 females) underwent CCA scanning using high-resolution ultrasound. The images were off-line analyzed using B-mode ultrasound image processing, devised for individual measurement of IT and MT as well as IMT. The mean coefficients of variation of new method measuring IT, MT, and IMT separately were 0.16% for IMT and 0.21% for both IT and MT. The IT (p < 0.01), MT (p < 0.01) as well as IMT (p < 0.001) of patients with atherosclerotic disease were significantly thicker than that of the patients without atherosclerotic disease. Patients with hypertension showed significantly thicker IT (p < 0.01), MT (p < 0.001), and IMT (p < 0.001) than that of the patients without hypertension. However, only IT was thicker in patients with smoking (p<0.01) than that of the patients without smoking.
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KEYWORD
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Carotid artery, Intima thickness (IT), Media thickness (MT), Intima-media thickness (IMT), Ultrasound
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