NY Times Article Indicates MelaFind Might be Useless
Excerpt from NY Times:
For decades, dermatologists have used their eyes, along with a magnifier called a dermatoscope, to try to distinguish abnormal but benign lesions from potential melanoma in order to avoid unneeded biopsies. Some dermatologists argue that these low-tech tools are still the most useful and worry that their colleagues are falling for expensive, cool-looking gadgets that may simply offer extraneous, and perhaps incorrect, data.
“This technology should still be considered to be in the developmental stage,” said Dr. Roberta Lucas, an instructor of clinical dermatology at the Northwestern University Feinberg School of Medicine in Chicago. “We are better off when the system supports doctors who are thorough and unhurried; who examine and listen carefully and who empower patients to practice good surveillance and sun protection.”
In fact, some members of an expert medical panel asked to review MelaFind a few years ago for the Food and Drug Administration warned that the device had the potential to give doctors and patients a false sense of security. While MelaFind can analyze small pigmented spots identified by dermatologists as having signs of melanoma, it is not designed to evaluate other problems: large melanomas, colorless melanomas or two other types of skin cancer — basal and squamous cell carcinoma.
Dr. Amy E. Newburger, a dermatologist in Scarsdale, N.Y., who was a member of that F.D.A. panel, told me that she was concerned that a doctor could inadvertently use MelaFind on a non-melanoma skin cancer, receive a score indicating that the spot was not irregular, and erroneously decide not to biopsy it. She voted against recommending the device for F.D.A. approval.
Some biostatisticians are also critical of MelaFind, saying the device can recognize a high percentage of melanomas correctly because it also falsely scores as positive so many non-melanomas — potentially prompting doctors to perform unnecessary biopsies.