Mercury accumulation and accelerated progression of carotid atherosclerosis: a population-based prospective 4-year follow-up study in men in eastern Finland
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Mercury
Intima-media thickness
Intima-media thickness
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Objective:To evaluate the relationship between common carotid artery (CCA) intima-media thickness (IMT), common carotid artery diameter (Dd) and carotid artery atherosclerosis (CAS) by ultrasonograph. Methods: The carotid arteries were assessed by PHILIPS IU22 color doppler ultrasonography in 40 patients with hypertension of high-risk group and 40 of mild dangerous group. IMT and Dd of common carotid arteries were measured in the two groups. Results: (1)The values of IMT and Dd were significantly higher in hypertensive patients of high-risk group than those of the mild dangerous group (P 0.05). (2)There were significant differences in isolated abnormal rates of IMT or Dd, and both IMT and Dd in hypertensive patients of high-risk group compared with those of mild dangerous group(P 0.05 or P 0.01). (3) After adjusting for age, gender, smoking and family history, the levels of blood pressure, blood glucose and blood fat still play an extremely positive role in the increasing of IMT and Dd. Conclusion: The enlargement of common carotid artery IMT and Dd was an objective marker to CAS, but coexistent abnormalities of IMT and Dd were more sensitive to CAS.
Intima-media thickness
Tunica intima
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Objective To investigate the clinical value of automatic measurement of carotid intima-media thickness(CIMT) based on AHP.Methods The CIMT and vascular age(VA) of 238 healthy persons were obtained with ultrasound arterial health package.IMT of common carotid artery was measured manually.Results The CIMT of different positions were different(Bulbcommon carotid arteryinternal carotid artery,P0.05).The CIMT of the group whose age were older than sixty was significantly higher than that of other groups(P0.05).The VA increased with the CIMT thickening(P0.05) or the age increasing(P0.05).However,the VA was younger than the physical age in all groups(P0.05).The automatic measurement values were significantly smaller than the manual ones(P0.05).Conclusion The proposed method is accurate and convenient,and has potential to assess atherosclerosis in clinic.
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Intima-media thickness
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Objectives To study the relationship between ambulatory pulse pressure(PP) and carotid artery intima-media thickness in elderly patients with essential hypertension. Methods The 24 hours ambulatory blood pressure monitoring was performed in a total of 103 elderly patients with essential hypertension. According to day-and night-time average PP,the patients were divided into two groups: PP60 mm Hg group and PP≥60 mm Hg group. The ultrasound technique was used to detect the carotid artery intima-media thickness. The comparison of difference of the carotid artery intima-media thickness and the correlative analysis of every parameter of the carotid artery intima-media thickness and PP in two groups was done. Results There was significantly different in the carotid artery intima-media thickness between PP60 mm Hg group and PP≥60mmHg group (P0.01). There was better correlation of PP and the carotid artery intima-media thickness,especially the correlation of nocturnal PP and the carotid artery intima-media thickness was the best. Conclusions The ambulatory PP (especially nocturnal PP) of the elderly patients with essential hypertension are the most important factors which influent the carotid artery intima-media thickness.
Intima-media thickness
Essential hypertension
Pulse pressure
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Intima-media thickness
Lumen (anatomy)
Tunica media
Carotid artery disease
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Purpose: To measure the thickness of intima and media layers of carotid arteries of peri- and post-menopausal women using standard ultrasound equipment present in many Ob & Gyn departments.
Intima-media thickness
Peri
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Intima-media thickness
Carotid artery disease
Value (mathematics)
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Purpose: To measure the thickness of intima and media layers of carotid arteries of pregnant women presenting preeclampsia (PE) compared to normal pregnancies (Ctrls) and perimenopausal women (Peri) using standard ultrasound equipment present in many Ob & Gyn departments.
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