A method of transforming a displayed three dimensional image to correspond to a position and orientation of a field of view of an imaging probe , with the displayed three dimensional image being produced by another device (106 or 222) than the imaging probe , the method comprising: displaying a three dimensional image of a tissue comprising a first co-ordinate space; tracking the positions of a plurality of transmitters removably connected to the imaging probe; calibrating the field of view of the imaging probe in a second co-ordinate space relative to the tracked positions of the transmitters to determine the position and orientation of the field of view relative to the positions of the transmitters in the second coordinate space; wherein calibrating the field of view of the imaging probe comprises: positioning a configuration tool having at least one transmitter at a plurality of configuration positions on transducer of the imaging probe , and determining a configuration matrix based on tracked position information for the configuration tool and the plurality of configuration positions on the imaging probe ; co-registering the first and second co-ordinate spaces; transforming the position and orientation of the field of view in the second coordinate space to the first co-ordinate space; and displaying the three-dimensional image to correspond to the transformed position and orientation of the field of view . displaying a three dimensional image of a tissue comprising a first co-ordinate space; tracking the positions of a plurality of transmitters removably connected to the imaging probe; calibrating the field of view of the imaging probe in a second co-ordinate space relative to the tracked positions of the transmitters to determine the position and orientation of the field of view relative to the positions of the transmitters in the second coordinate space; wherein calibrating the field of view of the imaging probe comprises: positioning a configuration tool having at least one transmitter at a plurality of configuration positions on transducer of the imaging probe , and determining a configuration matrix based on tracked position information for the configuration tool and the plurality of configuration positions on the imaging probe ; co-registering the first and second co-ordinate spaces; transforming the position and orientation of the field of view in the second coordinate space to the first co-ordinate space; and displaying the three-dimensional image to correspond to the transformed position and orientation of the field of view . positioning a configuration tool having at least one transmitter at a plurality of configuration positions on transducer of the imaging probe , and determining a configuration matrix based on tracked position information for the configuration tool and the plurality of configuration positions on the imaging probe ; co-registering the first and second co-ordinate spaces; transforming the position and orientation of the field of view in the second coordinate space to the first co-ordinate space; and displaying the three-dimensional image to correspond to the transformed position and orientation of the field of view . <EOS>