With a linear Clarius probe and a tracking system, we went through the (standard) calibration wizard of Imfusion several times. At the end, the 3D rendering of the two perpendicular scans of an irregular phantom seems to be relatively good. However, when investigating this rendering further and doing tracked ultrasound sweeps, the calibrated ultrasound shows an offset in the direction perpendicular to the transducers and parallel to the imaging plane (so the “length” direction of the probe). The ultrasound images start “in” the probe instead of at the transducers. Is there a way to get rid of this offset?