Sirius -MRI Marker
Brachytherapy seed placement is critical for prostate cancer outcomes. Cesium Blu (Cs-131) paired with the Sirius® MRI Marker gives you a clear picture of every implant for highly precise prostate cancer treatment.
Ultrasound, CT, and X-ray imaging don’t visualize soft tissue well, while MRI doesn’t always accurately identify brachytherapy seeds. MRI-assisted radiosurgery (MARS) using the Sirius positive-signal MRI Marker allows for superior visibility of soft tissue and precise seed localization.
Improved seed detection and localization dramatically impacts prostate cancer outcomes: 8-year prostate-specific antigen (PSA) relapse-free survival rates of 93% for high-quality implants versus 76% for low-quality implants have been reported.2
The First Positive Signal MRI Marker
Sealed biocompatible polymer capsule containing a unique MRI agent.
Seed Localization with MRI Alone
Sirius® Markers are optimally visualized using a standard fully balanced steady-state free precession MRI sequence, and can positively identify the location of Cesium-131 seeds.
Improved Prostate Contouring
The superior image quality of MRI could improve the accuracy of prostate contouring.