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Precise Seed Localization and Post-Implant Dosimetry

MRI-Visible LDR Brachytherapy Markers for Prostate Cancer.

Why Choose SIRIUS?

Its precise anatomical MRI localization provides confident verification, eliminates the uncertainty of CT dosimetry, and gives physicians greater assurance in delivering targeted care.

MRI-Enhanced Seed Detection

Positive MRI signal highlights implanted seeds, improving localization versus CT.

Confident Post-Implant Assessment

Supports accurate verification of seed placement, giving physicians clearer insight into implant quality.

Designed for Prostate Brachytherapy

Purpose-built for LDR workflows, helping optimize prostate cancer treatment planning and delivery.

To Place an Order:
Contact your Seed Provider

Its precise anatomical MRI localization provides confident verification, eliminates the uncertainty of CT dosimetry, and gives physicians greater assurance in delivering targeted care. 

Dr. Steven Frank

“The SIRIUS MRI Marker is unparalleled in providing precise positive-signal MRI localization of implanted LDR seeds. This makes SIRIUS a critical tool in post implant quality assurance, ensuring accurate treatment delivery, as well as avoidance of critical structures such as the external urethral sphincter that can only be truly delineated on MRI.”

Dr. Steven Frank

“The SIRIUS MRI Marker is unparalleled in providing precise positive-signal MRI localization of implanted LDR seeds. This makes SIRIUS a critical tool in post implant quality assurance, ensuring accurate treatment delivery, as well as avoidance of critical structures such as the external urethral sphincter that can only be truly delineated on MRI.”

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Clinical & Reimbursement
Support for Physicians

Access reimbursement guides, coverage and clinical resources for C4 Imaging’s Markers.