Clinical correlates of size and number of collateral vessels in peripheral artery disease
Vascular Medicine, 06/29/2012
Keeling AN et al. – Among participants with peripheral artery disease (PAD), larger and more numerous collaterals, measured by magnetic resonance angiography (MRA), were associated with lower ankle–brachial index (ABI) values, greater plaque area in the superficial femoral artery (SFA), and a lower prevalence of asymptomatic PAD. Further study is needed to determine the role of collateral vessels in maintaining functional performance in PAD.