After performing transluminal balloon angioplasty on the initial vein, the provider places a balloon through a catheter into the lumen (interior) of one or more additional veins (except for the dialysis circuit) and expands the balloon as many times and at as many points as necessary within the same vein to open up the vein and improve blood circulation. The procedure includes all imaging guidance and diagnostic imaging necessary to carry out the angioplasty and all radiological supervision and interpretation (RS&I).
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