Sensitivity of brachial versus femoral vein injection of agitated saline to detect right‐to‐left shunts with Transcranial Doppler

Abstract

The sensitivity of TCD for detection of RLS is increased when agitated saline injections are performed through the femoral vein. In patients with a high clinical suspicion for RLS, low TCD grades obtained with traditional brachial venous access should be interpreted with caution. When possible, a repeat study using femoral venous access may be considered.