Fig. 9
From: Experimental study of beam distortion due to fiducial markers during salvage HIFU in the prostate

Schematic showing the effect different transducer geometries have on the portion of the HIFU beam obstructed by the marker
From: Experimental study of beam distortion due to fiducial markers during salvage HIFU in the prostate

Schematic showing the effect different transducer geometries have on the portion of the HIFU beam obstructed by the marker