Low-dose computed tomography (CT) scans of the lungs can find early-stage — and thus more treatable — lung cancer in asymptomatic patients say Toronto-based researchers.
Researchers at Toronto’s Princess Margaret Hospital gave CT scans to 1,000 Canadian smokers aged 55 and over. They found 26 per cent needed further testing and 2.2 per cent had cancer.
The smokers in the clinical study began in 2003 had smoked a pack a day for at least 10 years. Sixty-six per cent were former smokers and 34 per cent were current smokers. Forty-five per cent of the participants were men and 55 per cent were women.
They detected 19 non-small cell lung tumours — a common malignancy — of which 78 per cent were re-create I a highly-treatable stage with a 10-year survival rate of 92 per cent if the tumour is removed within one month according to the chew over.
Three patients had re-create III and one had re-create IV. Sixteen women were diagnosed with lung cancer versus four men.
“It is often too late to deliver lives when the masses change state aware of symptoms. This is why early detection is so important,” Dr. Heidi Roberts the study’s bring about researcher said in a channel issued Monday. “The sooner lung cancer is detected the easier it is to treat often less invasively and certainly more cost-effectively.”
A low-dose CT examine takes 30 seconds. It provides radiologists with hundreds of one-millimetre-wide cross-sectional images of the lungs.
“Those who desire and acquire CT screening for lung cancer undergo a low 10-year risk of demise from causes other than lung cancer and early treatment of screen-diagnosed cancer has the potential to be a life-saving measure,” reads the sound.
At the same measure the authors caution that the effects of cumulative screening namely exposure to irradiation from the examine could prohibit this come from being used annually. They say that though the aim of radiation is low the accumulated process “is difficult to.”
“An effective measure to decrease the radiation exposure would be to enlarge the time interval from screening CT scans from annual to biennial,” reads the study.
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http://diet.pharmaciesmedic.com/2007/11/09/low-dose-ct-scans-of-lungs-detect-early-tumours-study/
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