{Reference Type}: Journal Article
{Title}: Development of a real-time internal and external marker tracking system for particle therapy: a phantom study using patient tumor trajectory data.
{Author}: Cho J;Cheon W;Ahn S;Jung H;Sheen H;Park HC;Han Y;
{Journal}: J Radiat Res
{Volume}: 58
{Issue}: 5
{Year}: Sep 2017 1
{Factor}: 2.438
{DOI}: 10.1093/jrr/rrw131
{Abstract}: Target motion-induced uncertainty in particle therapy is more complicated than that in X-ray therapy, requiring more accurate motion management. Therefore, a hybrid motion-tracking system that can track internal tumor motion and as well as an external surrogate of tumor motion was developed. Recently, many correlation tests between internal and external markers in X-ray therapy have been developed; however, the accuracy of such internal/external marker tracking systems, especially in particle therapy, has not yet been sufficiently tested. In this article, the process of installing an in-house hybrid internal/external motion-tracking system is described and the accuracy level of tracking system was acquired. Our results demonstrated that the developed in-house external/internal combined tracking system has submillimeter accuracy, and can be clinically used as a particle therapy system as well as a simulation system for moving tumor treatment.