Sensitivity, also called the true positive rate, the recall, or probability of detection in some fields measures the proportion of actual positives that are correctly identified as such (e.g. when DermaSensor correctly identifies lesions where the disease is present as "high risk".)
  • DermaSensor’s sensitivity is 94%. ( TBC)
Specificity (also called the true negative rate) measures the proportion of actual negatives that are correctly identified as such (e.g. DermaSensor correctly identifies lesions where the disease is absent as "low risk".)
  • DermaSensor’s specificity is 36%. (TBC)
Negative Predictive Value (NPV)
  • For this device, the NPV is >98% (TBC), meaning there is less than 2% chance of a high-risk lesion being called low risk. This is calculated at a population level for the U.S. based on the incidence of skin cancer and benign lesions seen in primary care.