The following information was obtained from the State of
Texas via email:
On November 21, 2011, the Agency [Texas Department of State Health Services] was notified by one of its licensees that it had determined that a therapy event had occurred on November 17, 2011, during an administration of Yttrium-90 microspheres. The patient was prescribed a dose of 135 gray to the target tissue. Surveys of the administration equipment following the procedure indicated readings that were higher than expected if the full dose had injected into the patient. Initial estimates by the licensee are that a dose of 95.8 gray was administered to the target tissue, approximately a 29% variation from the prescribed dose. The licensee will confirm the dose administered and investigate to determine the cause of the event. Information on this event will be updated as it becomes available.
Texas Incident #: I-8904
A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.