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Physicians/Clinicians - Cesium-131 DataPhysicians/Clinicians - Cesium-131 Data

Lung Data


Dose Delivery of Cs-131 and 1-125
  • Cesium-I3I has delivered 90% of the intended dose 33 days post implant, compared to 32% of the I-125 dose.
  • Cesium-I3I has delivered 99.8% of the dose at 90 days, when bioabsorbable sutures/mesh have most likely dissolved, compared to 65% of dose delivered for I-125.
  • Cesium-I3I delivers uniform and symmetrical radiation penetration for a homogeneous lung implant.

Dose Rates of Cs-131 and 1-125
  • For the first 26 days after implant, the dose rate from Cs-I3I is greater than from I-125.
  • After 26 days, the dose rate from I-125 implant exceeds that of Cs-I3I.
  • With Cs-I3I, radiation safety precautions can be discontinued much sooner than with I-125.