OPTICAL IMAGING FOR CANCER DIAGNOSIS

A new, non-invasive instrument for cancer detection, invented by Atam Dhawan, professor and chair of electrical and computer engineering, has been commercialized by Translite, Inc., a Texas-based company, which has used the technology to develop a line of products for skin-lesion and vein imaging.

Dr. Dhawan's invention, the Nevoscope, is a non-invasive optical instrument for in situ imaging of skin lesions through transillumination by visible light. The device can detect and recordstructural and morphological changes of the pigmented lesion that are not visible to the naked eye. He also developed  a three-dimensional image reconstruction and analysis algorithm to extract important diagnostic and prognostic features from the image yielded by the Nevoscope.

On the left in the photo above is a conventional image of the surface of the lemon obtained with surface lighting only. On the right is the transillumination image.It shows the subsurface structure in the lemon peel that is not visualized with surface lighting. The region imaged is approximately 8 x 8 mm in size. High resolution and magnification images show round subsurface structures that are most likely oil pockets. View Nevascope images of pigmented lesions. View transilluminated vein images. View wound imaging by the Nevascope.

Dr. Dhawan was recently elected a Fellow of the Institute of Electrical and Electronic Engineers (IEEE) in recognition of his breakthrough research in optical imaging.