ICGA provides rapid visual and quantitative information about regional foot perfusion. We believe this is the first report describing quantification of foot perfusion before and after lower extremity revascularization for severe limb ischemia. Further study is warranted to help define the utility of this intriguing new technology to assess perfusion, response to revascularization, and potentially, to predict likelihood of wound healing.

Patients with critical limb ischemia have nonhealing wounds and/or ischemic rest pain and are at high risk for amputation and mortality. Accurate evaluation of foot perfusion should help avoid unnecessary amputation, guide revascularization strategies, and offer efficient surveillance for patency. Our aim is to review current modalities of assessing foot perfusion in the context of the practical clinical management of patients with critical limb ischemia.

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