Learn how one little seed is defining modern brachytherapy.
With higher energy and a shorter half-life than competitors, Cesium-131 is proven to be a highly customized and effective treatment for the rapid recovery of patients in the fight against prostate cancer and other cancers throughout the body.
Prostate
With higher energy and a shorter half-life than competitors, Cesium-131 is proven to be a highly customized and effective treatment for the rapid recovery of patients in the fight against prostate cancer.
Seed Configurations
Loose Seeds
Strands
Preloaded Needles
Seeds in Mick Cartridge
Delivery Systems
MRI-Assisted Radiosurgery—the Most Advanced Form of Brachytherapy1
MRI-assisted radiosurgery (MARS) represents an exciting new horizon in prostate brachytherapy. The high-resolution images produced by magnetic resonance imaging (MRI) allow for unprecedented accuracy of implant planning and post-implant evaluation.
Pair Cesium-131, Isoray’s high-energy isotope, with Sirius®, the only positive-signal MRI Marker for quality assurance in high-precision brachytherapy. This FDA-cleared pairing gives you a clear picture of every implant, delivering the accuracy you need, and the high-quality treatment your patients deserve.
Blu Tray
Isoray’s Blu Tray delivery system empowers clinicians by organizing and measuring Cesium-131 Strands while in the OR.
Surgical
With higher energy and a shorter half-life than competitors, Cesium-131 has been used in the treatment of brain, colorectal, gynecological, and head and neck cancers.
Seed Configurations
Loose Seeds
Seeds in Mick Cartridge
Braided Sutures
Braided Sutures in Mesh
Modern brachytherapy starts here.
Not all brachytherapy radioisotopes are the same. Cesium-131 offers you a powerful option for treating prostate and other cancers throughout the body.
Higher Energy
Isoray’s proprietary isotope, Cesium-131, has a higher energy allowing for a more uniform dose distribution with less overdosing than other permanent isotopes. (1)
Shorter Half-Life
Isoray’s proprietary isotope, Cesium-131, has a shorter half-life than other commonly used isotopes for the treatment of cancer throughout the body, resulting in a shorter duration of radiation which contributes to a rapid resolution of patient side effects. (2)
Improved Coverage of the Prostate
Isoray’s Cesium-131 proprietary permanent prostate cancer brachytherapy seeds allow for better dose homogeneity and the sparing of the urethra and rectum while providing comparable prostate coverage compared to other seeds with comparable or fewer seeds and needles. (3, 4, 5, 6)
Rapid Resolution of Side effects
Isoray’s proprietary isotope, Cesium-131, has a shorter half-life than other commonly used isotopes for the treatment of cancer throughout the body, resulting in a shorter duration of radiation which contributes to a rapid resolution of patient side effects. (7, 8, 9, 10)
Higher Biologically Effective Dose
Isoray’s Cesium-131 also delivers a higher “biological effective dose” or BED compared to I-125 or Pd-103 across a wide range of tumor types. (11)
PSA Control
Isoray along with investigators tracking PSA in both single arm and randomized prostate cancer treatment trials have concluded that Cesium-131’s PSA response rates have similar early tumor control to I-125, which was previously considered the gold standard in permanent seed brachytherapy. (8, 12, 13)
References
- www.mdanderson.org/cancerwise/mri-assisted-radiosurgery–mars–and-brachytherapy-for-prostate-cancer-treatment.h00-159461634.html