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Atherosclerosis measured by whole body magnetic resonance angiography and carotid artery ultrasound is related to arterial compliance, but not to endothelium-dependent vasodilation: the Prospective Investigation of the Vasculature in Uppsala Seniors (PIVUS) study
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Internal Medicine. (Akutsjukvården)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Internal Medicine.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Oncology, Radiology and Clinical Immunology, Radiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Oncology, Radiology and Clinical Immunology, Radiology.
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2009 (English)In: Clinical Physiology and Functional Imaging, ISSN 1475-0961, E-ISSN 1475-097X, Vol. 29, no 5, 321-9 p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Arterial compliance and endothelium-dependent vasodilation are two characteristics of the vessel wall. In the Prospective Investigation of the Vasculature in Uppsala Seniors (PIVUS) study, we studied the relationships between arterial compliance and endothelium-dependent vasodilation versus atherosclerosis as measured with two imaging modalities. METHODS: In the population-based PIVUS study (1016 subjects aged 70), arterial compliance was determined by ultrasound in the carotid artery and the stroke volume to pulse pressure ratio by echocardiography, while endothelium-dependent vasodilation was assessed by the invasive forearm technique with acetylcholine and brachial artery ultrasound. Intima-media thickness was evaluated by ultrasound in the carotid artery (n = 954). Stenosis in the carotid, aorta, renal, upper and lower leg arteries were determined by magnetic resonance angiography in a random subsample of 306 subjects. RESULTS: After adjustments for gender, Framingham risk score, obesity, myocardial infarction and stroke, distensibility in the carotid artery and the stroke volume to pulse pressure ratio were both significantly related to a weighted index of stenosis in the five arterial territories evaluated by magnetic resonance angiography (p<0.02 for both). Distensibility in the carotid artery (P = 0.021), but not the stroke volume to pulse pressure ratio (P = 0.08), was also significantly related to intima-media thickness. CONCLUSION: In the elderly population, atherosclerosis is mainly related to arterial compliance, but not to endothelium-dependent vasodilation in peripheral conduit or resistance vessels.

Place, publisher, year, edition, pages
2009. Vol. 29, no 5, 321-9 p.
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Medical and Health Sciences
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URN: urn:nbn:se:uu:diva-124226DOI: 10.1111/j.1475-097X.2009.00871.xISI: 000268981800001PubMedID: 19486081OAI: oai:DiVA.org:uu-124226DiVA: diva2:317249
Available from: 2010-05-03 Created: 2010-05-03 Last updated: 2017-12-12Bibliographically approved

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Hansen, TomasJohansson, LarsAhlström, Håkan

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