Optimal diagnostics of residual stenosis after lysis

The treatment of acute deep vein thrombosis has developed significantly over the past few years, and catheter-directed thrombolysis is now widely accepted. Controversy still exists over the decision to treat residual or underlying lesions with a venous stent. Magnetic resonance techniques have evolved considerably, which together with intravenous ultrasound can provide a detailed assessment of the deep venous system. Nevertheless, there is still no single perfect imaging modality that can identify a functional stenosis in the venous system. The decision to proceed to stent placement following lysis is multifactorial, reliant on the use of a number of imaging modalities in combination but most importantly good clinical acumen and experience.