FIDUCIAL MARKER

摘要

1. A fiducial marker assembly, including: an imaging market (10) comprising imaging material and having a housing constructed of a bio-compatible material, the imaging marker (10) having a cavity (14) characterised in that the cavity (14) contains a mixture of imaging materials which enable the imaging marker (10) to be imageable under X-ray CT and MRI or characterised in that the cavity contains a quantity of imaging material which enables the imaging marker (10) to be imageable under PET or SPECT.