Loose Seeds
Cesium-131 seeds: the titanium cased seed contains a gold wire for visualization and affords greater flexibility of dose placement in situ, compared to stranded seed products.
Features
Good for Prostate and Surgical applications
Design
- Gold radiopaque marker
- Biocompatible Titanium casing
- 100% assay ensures accurate activity level upon implant
Shipment
Loose seeds are shipped in glass vials contained within a lead pig and can be shipped in quantities of 1 to 100 seeds per vial at the specific activity requested by the customer.
Perspective Therapeutics Difference
- Expert Sales and Support teams ensuring real-time ordering and delivery for procedures throughout the body.
- Committed to offering interactive training programs throughout the US teaching the leading techniques and the newest tools.
- Empowering patients to make their own treatment decisions based on decades of data.
Cesium-131 Treatment Areas
Cesium-131 Products
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Your Isotope Choice Makes a Difference
Not all brachytherapy radioisotopes are the same. Compared to alternative brachytherapy seeds, Cesium-131 offers the highest energy and shortest half-life.
Paladium-103
Introduced 2004
17 Day Half Life (18)
20.8 Kev
58 Days for 90% Dose
Detectable in the body for 170 Days
Cesium-131
Introduced 2004
9.7 Day Half-Life
The amount of time for the radiation to half. A shorter half life means quicker to PSA baseline. (8, 12, 13)
30.4 Kev
The energy level of the isotope. Higher energy leads to greater coverage of the infected organ.
33 Days for 90% Dose
Faster dose delivery rate.
Detectable in the body
for 97 Days
Iodine-125
Introduced 1965
60 Day Half Life (18)
28.5 Kev
204 Days for 90% Dose
Detectable in the body for 600 Days
Armpilla C, Dale R, Coles I, et al. The determination of radiobiologically optimized half-lives for radionuclides used in permanent brachytherapy implants. Int J Rad Onc Biol Phys 2003; 55:378-385.
Find a Doctor Near You
A diagnosis is just the first step toward treating your cancer. We are here to help you make an informed treatment decision with your doctor so you can begin living your life again. Use the search (below) to find a Doctor that specializes in Brachytherapy.
Want to know more about the versatility of Cesium-131
Do you have questions? We can help with any issues you may have
Resources
- Frank SJ, et al. American College of Radiology Appropriateness Criteria: Permanent Source Brachytherapy for Prostate Cancer. Brachytherapy. 2011;10(5):357–362
- Cesium-131 Instructions for Use
Cesium-131 brachytherapy seeds are indicated for the treatment of malignant disease (e.g., head and neck, eye, brain, breast, prostate, etc.) and may be used in surface, interstitial, and intracavitary applications for tumors with known radiosensitivity. The seeds may be used as a primary treatment or in conjunction with other treatment modalities, such as external beam radiation therapy, chemotherapy or as treatment for residual disease after excision of primary tumors. Contraindications: As with other brachytherapy sources, treatment of tumors in generally poor condition (e.g., ulcerated) is not recommended with Cesium-131 brachytherapy seeds due to the potential for source migration. Prior to use, please reference the Cesium-131 Instructions for more information on indications, contraindications, warnings, all precautions, and adverse events.
Caution: Federal law restricts this device to sale by or on the order of a physician.
