A probe (14 14′), comprising an ultrasonic probe (56a,56b 74a,74b) and a pixellated radiation detector (16) with discrete detecting elements (50a,50b,50c) for detecting a predefined radiation. The probe (14) is adapted to be located at least partially within a body cavity. Also, an imaging method, comprising employing such a probe (14) to form an image while located within a body cavity, and a dosimetry method, comprising employing such a probe (14) to conduct dosimetry while located within a body cavity.
