Fig. 5From: Experimental study of beam distortion due to fiducial markers during salvage HIFU in the prostateLesions produced in BSA PAG phantoms with the transducer focus positioned 10, 5, 3, 2, 1 mm in front of the marker (a-e), at the marker (f) and 1, 2, 3, 5, 10, 20 mm behind the marker (g-l). The black broken line indicates that the photo was trimmed to fit both the marker and lesionsBack to article page