Abstract: Communicating direction information includes determining direction information with respect to a first frame of reference, and transmitting from an originating entity to one or more receiving entities intermediate information based at least in part on the direction information. For each of at least some of the receiving entities, information based at least in part on the intermediate information and a relationship between the first frame of reference and a second frame of reference associated with the respective receiving entity is presented.

Abstract: The apparatus, method and system for performing a high dose rate brachytherapy procedure in a body cavity may include an at least partially indwelling multi-lumen catheter with a plurality of inflatable balloons coupled thereto. A lumen may be adapted to receive radiation seeds. The balloons, when inflated, may be adapted to administer a substantially uniform radiation isodose to the body cavity. Some embodiments may be well suited to performing intrauterine brachytherapy for the treatment of endometrial carcinoma.