Processing system for medical scan images

A workstation for analysing a scan image, the workstation comprising:

• a first subsystem arranged to:
• (i) define an extent of a first region of interest in a first scan image;
• and
• (ii) identify a second region in a second scan image, the second region in the second scan image corresponding to the first region of interest in the first scan image;
• and
• an analysis module arranged to:
• (i) classify each spatial location of the second region, to provide a classification of the spatial locations of the second region into at least one category of tissue type;
• and
• (ii) provide information about a proportion of the spatial locations in the second region that correspond to the at least one category of tissue type.

A hybrid medical imaging scanner, comprising:

• a control module, the control module being operable to control a scanning unit to obtain a first scan image and a second scan image of a portion of tissue, the first and second scan images being produced using different scanning modes;
• a first subsystem, the first subsystem being operable to:
• (i) define an extent of a first region of interest in the first scan image;
• (ii) identify a second region in the second scan image, the second region in the second scan image corresponding to the first region of interest in the first scan image;
• and
• an analysis module, the analysis module being operable to:
• (i) classify each spatial location of the second region, thereby providing a classification of the spatial locations of the second region into least one category of tissue type;
• and
• (ii) provide information about a proportion of the spatial locations in the second region (ROI-2) that correspond to the at least one category of tissue type.