The following information was received from the state of
Colorado via facsimile:
On June 24, 2022, a patient was prescribed 1.45 GBq (39.2 mCi) of Y-90 microspheres (TheraSphere) to the right lobe of the liver, lobe estimated size of 474 grams, for a target dose of 148 Gy. However, imaging after the administration indicates that the dose was incorrectly delivered to the left lobe of the liver, lobe estimated size of 283 grams, for an estimated delivered dose of 240 Gy. The preliminary cause is based on the patient's anatomy with the left hepatic branch close to the intended treatment site. The physician's office is reaching out to the patient to notify them but has not been able to at the time of this initial notification.
Colorado Event Report ID No.: CO220019
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.