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A recent United States is a hope for detecting lung cancer. U.S. scientists have already developed and tested a prototype breath test for detect lung cancer. This may allow doctors to detect lung cancer at earlier stages.
The Results of the test U.S. was published in the international journal Thorax Respiratory Medicine.
In tests, the device color test, which is the size of a room and is surprisingly inexpensive, had a 75 percent success in detecting various types of cancer patients.
However, the tests were not 100 percent accurate. The device shows no false positives in lung cancer. This reduces the effectiveness of the elimination of the ability of physicians to begin treatment immediately.
The technique table called "colorimetric sensors" takes the chemical signature of the breath of people with lung cancer are caused by tumors.
Cancers produce volatile organic compounds (VOCs) that are different from normal cells. Lung tumors are more likely to contain the increasing signs of these abnormal compounds. This raises the possibility that the device to detect cancer lung "fingerprint" on the breath.
Surprisingly, dogs are capable of detecting volatile organic compounds and differentiate among people with lung cancer and healthy people. With the "rapid response" an important factor in survival rates, there are many who wonder why dogs are not trained to detect volatile organic compounds in the same way dogs are trained to detect drugs and other compounds.
The prototype of this device has been developed by Dr. Peter Mazzone, Cleveland Clinic, Ohio, in collaboration with private enterprise ChemSensing Champaign, Illinois. The private company customizes Metalloporphyrins, a family of chemical dye reagents are sensitive to volatile organic compounds.
They work to develop low cost device. The team is only available to the public are mass spectrometers or gas chromatographs. They are expensive and require the services of a expert to analyze the results.
The new device resembles a 2 cm square keychain with 6 out of 6 reasons of colored dots visible through the plastic box. Changes in the structure of the suspension points indicate the presence of volatile organic compounds in breath based on the composition of breathing gas.
The scientists tested 143 patients. Patients must blow into the device for 12 minutes. The test group was divided into three groups. Some patients had lung cancer at different stages some had other forms of respiratory diseases such as emphysema. The others were healthy.
The device detects 73 percent of lung cancer patients and as high as 72 percent of patients without lung cancer. This is not 100 percent, but the results are acceptable.
The U. S. National Cancer Institute reports that lung cancer is the second most common cancer and the most common cause of cancer related with deaths in the United States, with over 200,000 new cases diagnosed and 160,000 deaths, mostly due to the disease each year.
The Organization World Health Organization (WHO) estimates that the overall rate of lung cancer deaths to 1.3 million.
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Article Source: ArticlesBase.com – Early Detection For Lung Cancer
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