C4 Imaging develops medical devices that enable clinicians to more accurately perform image-guided procedures. The companyâs core proprietary technology, C4, is a unique magnetic resonance imaging (MRI) agent that has been encapsulated within an implantable, biocompatible shell. C4 Imagingâs first product is the Sirius⢠MRI Marker, which will be used to facilitate seed localization during the treatment of prostate cancer with radioactive seeds (brachytherapy). The Sirius⢠MRI Marker will allow physicians to accurately locate seeds within the complicated anatomy of the prostate and the surrounding critical structures, utilizing a single post-implant MR imaging pro