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CT scans show the sizes of tumours, but there is a lot more information contained within them that we can potentially mine. For example, if we look at the relationship between the pixels within the tumour then we can derive its ‘texture’. This gives multiple possibilities, including telling different types of tumour apart, whether they are responding to immune therapy or radiation therapy, and whether they are still malignant or just leftover scars. We are looking at this in lung cancer patients, who have very frequent scans, but it is a relatively underexplored field of study in melanoma. We hope to bring textural analysis to melanoma next.

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