LesionTracker is an ITCR U24 funded project to create an open-source extensible imaging platform for measuring and longitudinally tracking lesions for oncology clinical trials and research.  The viewer runs in modern HTML5 compliant web-browsers.  We are working with several other ITCR project to integrate our viewer platform with other projects.  All source code as well as demos are available through the github site accessible through the Open Health Imaging Foundation (OHIF) website at www.ohif.org (OHIF is a non-profit 501c(3) foundation that supports open-source medical imaging techologies).