Method and ultrasound system for determining a position of an ultrasound transducer during an ultrasound examination

The invention relates to an ultrasound system with an ultrasound head, which in turn comprises a sensor system with an optical sensor. The optical sensor scans during an ultrasound examination of an object, the surface of the object, and thus produces a time series of optical images of the surface. In this case, a movement of the optical sensor and the ultrasound head can be reconstructed during the study by comparison of two images of the time series, for example. As part of a correlation. With the thus determined movement of the ultrasonic head during the ultrasonic examination, the ultrasound images captured at the same time can be assembled, for example. To a total image.