Washington: In what may pave the way for early diagnosis and treatment of lung cancer, an Indian-origin scientist-led team claims to have developed a method which can
detect the onset of the disease.
Dr Hemant Roy of NorthShore University and colleagues at Northwestern University say the method detects lung cancer by testing cheek cells in humans using pioneering biophotonics technology, the `Cancer Research` journal reported.
"By examining the lining of the cheek with this optical technology, we have the potential to prescreen patients at high risk for lung cancer, such as those who smoke, and identify the individuals who would likely benefit from more invasive and expensive tests versus those who don`t need additional tests," said Roy.
The optical technique is called partial wave spectroscopic microscopy which can detect cell features as small as 20 nanometers, uncovering differences in cells that
appear normal using standard microscopy techniques, say the scientists.
The PWS-based test makes use of the "field effect", a biological phenomenon in which cells located some distance from the malignant or pre-malignant tumour undergoes molecular and other changes.