BTS ÉLECTRONIQUE / ÉLECTROTECHNIQUE
HAND-HELD SCANNER COULD DETECT TUMOURS
Sergio Pistoi, Rome
Two independent studies appear to show that tumours can be detected by scanning people with a hand-held device,
With the help of Turin-based aerospace firm Galileo Avionica, physicist Clarbruno Vedruccio who has developed the device, built the slimline scanner.
Called the Trimprobe – short for Tissue Resonance InterferoMeter – the device is a white plastic baton about the size of a Pringles tube. Inside it, an antenna produces a beam of microwaves that vary in frequency from 400 to 1350 megahertz.
The power in the signal is less than 100 milliwatts. To use it, the baton is simply swiped over the body – with no need for patients to undress.
In clinical trials at the San Carlo Borromeo Hospital in Milan, the scanner was able to predict prostate tumours in 93 per cent of cases that were later confirmed by biopsy.
« The results are amazing. The scanner seems ideal for mass-screening of cancer because it is rapid, non-invasive and highly sensitive », says Carlo Bellorofonte, the urologist who led the trial.
Meanwhile a separate study on 200 women carried out at the European Institute of Oncology in Milan found that the prototype scanner could detect breast cancer in 66 per cent of the cases.
333 mots Newscientist, Internet, 12/06/03
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