A hospital scan normally used to detect cancer could be used to steer tumour killing treatments to hard-to-reach targets in the body, say scientists. The UK team at Sheffield University deployed the magnetic power of MRI scans to control the movement of a specially designed injectable cancer therapy. Early trials in mice suggest the novel delivery method works. But years more of studies are needed before it could be used in patients. The hope is it will revolutionise the way doctors treat cancers that are tricky or impossible to remove surgically – tumours in the brain and spine and cancers that have spread around the body, for example.

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