3-D imaging technique may be useful for measuring efficacy of injectable wrinkle reducers A three-dimensional imaging technique often used in the automotive and aerospace industries for accurate measurement could be useful to gauge the efficacy of injectable wrinkle reducers such as for example Botox and Dysport, according to new research from the Perelman School of Medicine at the University of Pennsylvania read article . The procedure, called three-dimensional speckle monitoring photogrammetry, is defined in the May problem of Reconstructive and COSMETIC SURGERY. Authors say it gets the potential to measure the efficacy of several treatments for which these kinds of shots are used, not only for cosmetic purposes but also to lessen facial paralysis arising from stroke and Bell's palsy.