Fig. 3
From: Procedural sedation and analgesia for respiratory-gated MR-HIFU in the liver: a feasibility study
Displacement of the diaphragm as measured with MRI. Top: general anesthesia (GA). Bottom: procedural sedation and analgesia (PSA). The displacement of the diaphragm is in both cases less than 3Â mm during the resting phase causing only a small heat-spread during ablation. The resting phase is longer under PSA, which is due to the dosages of remifentanil and propofol and the settings of the mechanical ventilator used under GA