作者
Johan Wikström, Tomas Hansen, Lars Johansson, Lars Lind, Håkan Ahlström
发表日期
2008/3
期刊
Acta radiologica
卷号
49
期号
2
页码范围
143-149
出版商
SAGE Publications
简介
Background: Whole-body magnetic resonance angiography (WBMRA) permits noninvasive vascular assessment, which can be utilized in epidemiological studies.
Purpose: To assess the relation between a low ankle brachial index (ABI) and high-grade stenoses in the pelvic and leg arteries in the elderly.
Material and Methods: WBMRA was performed in a population sample of 306 subjects aged 70 years. The arteries below the aortic bifurcation were graded after the most severe stenosis according to one of three grades: 0–49% stenosis, 50–99% stenosis, or occlusion. ABI was calculated for each side.
Results: There were assessable WBMRA and ABI examinations in 268 (right side), 265 (left side), and 258 cases (both sides). At least one ⩾50% stenosis was found in 19% (right side), 23% (left side), and 28% (on at least one side) of the cases. The corresponding prevalences for ABI <0.9 were 4.5%, 4.2%, and 6.6 …
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