 The purpose of this pilot study is to determine if a novel, unique, portable, non-contact optical imaging device developed at the Beckman Laser Institute called Modulated Imaging MI can detect changes in a flaps optical properties, which can correlate with arterial or venous occlusion or with the development of fat necrosis or flap atrophy. The study would also evaluate if changes in the tissue transfer flaps optical properties, as detected by the device could be employed as a monitoring device in the post-operative period after reconstructive surgery. The MI devices detection of specific optical properties of a tissue flap could also potentially be used as a diagnostic tool to predict the likelihood of the development of fat necrosis or flap atrophy in a delayed fashion several months after reconstructive surgery. 