Measuring appearance of implant-based breast reconstruction after mastectomy for breast cancer - an online approach to research. Using 3-dimensional surface images we intend to create a tool to measure appearance after surgery in order to improve standards of care for women. We want to minimise the number of visits and amount of time involved in research participation so this pilot study will develop new online tools for information giving and gathering, and for consent so that only one visit to hospital will be required for photographs. This will also extend the availability of expensive 3D technology to more women.