Stenosis and Pseudostenosis of the Upper Extremity Arteries in Large-Vessel Vasculitis.

ABSTRACT:

Objective

Pseudostenosis is a magnetic resonance angiography (MRA) artifact that mimics arterial stenosis. The study objective was to compare imaging and clinical aspects of stenosis and pseudostenosis in a cohort of large-vessel vasculitis (LVV), including giant cell arteritis (GCA) and Takayasu's arteritis (TAK).

Methods

Patients with LVV and comparator conditions (healthy or vasculopathies) underwent MRA of the aortic arch vessels. The subclavian and axillary arteries were systematically assessed for presence of stenosis and pseudostenosis by two independent readers. Serial and delayed imaging and clinical assessments were used to confirm suspected pseudostenoses. Multivariable regression analyses were used to identify associations between angiographic pathology and clini

SUBMITTER: Marinelli KC 

PROVIDER: S-EPMC6858046 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature