An adjustable breast bridge for use in multiple-plane interstitial breast implants.

A newly designed adjustable breast bridge used for patients requiring multiple-plane interstitial breast implants is described. The bridge offers a simple, rapid, and accurate method for determining interplane separation on the sloping breast surface, and is applicable to breasts of all shapes and sizes. The precise interplane spacing of 192Ir sources made possible by using the breast bridge provides uniformity of dose within the implanted volume. The breast bridge allows the radiotherapist to alter interplane spacing to optimise the dose rate to the implanted volume, based upon the preplanned number and strength of 192Ir seeds to be used for each case.