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Screening detects just half of all breast cancersDate: 10/08/2007 09:54:08
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Nearly half of early breast cancers are not detected by existing cancer screening programmes, a study has found.
According to research carried out by Swiss scientists, x-ray based mammograms currently detect just 56 per cent of early-stage cancers in high risk women.
In comparison, the detection rates for magnetic resonance imagining scans (MRI), which are usually only offered to young women at high risk of developing the cancer, stands at around 92 per cent.
Christiane Kuhl, who led the team at the University of Bonn, said: "If you picked up all cases of ductal carcinoma in situ [DCIS] you would prevent virtually all cases of breast cancer.
"Our finding that MRI is superior to mammography in detecting it turns things upside down," she concluded in the Lancet.
Recent statistics from the health authorities reveal that the cancer screening programme in England diagnosed 13,809 cases of breast cancer last year alone.
Currently, all women between the ages of 50 and 70 are called for screening every three years, with this age group more at risk of developing cancer due to the density of their breast tissue.
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