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The following information was received fro … The following information was received from the Massachusetts Radiation Control Program (the Agency) via email:</br>On 02/14/25, at 0549 EST, the licensee, Beth Israel Deaconess Medical Center reported a medical event involving Yttrium-90 Theraspheres (Nordion BWXT ITG Canada, Inc. Model TheraSphere Y-90 Glass Microsphere System, SSD NR-0220-D-131-S). The total administered activity differed from prescribed treatment activity as documented in the written directive by 20 percent or more.</br>The medical event occurred on 2/14/2025. The patient received two doses. For the first dose, the activity delivered was calculated to be 58.4 percent of the prescribed activity (prescribed activity: 1.84 GBq, delivered activity: 1.075 GBq). For the second dose, the activity delivered was calculated to be 68.6 percent of the prescribed activity (prescribed activity: 0.8 GBq, delivered activity: 0.549 GBq). The event was identified on 2/14/25. The licensee did not report if there were any adverse effects on the patient. The licensee did not report whether the authorized user, referring physician, and patient have been notified.</br>The Agency will follow up with the licensee radiation safety officer to determine the event cause and corrective actions. This is the second medical event during this week involving Theraspheres from this licensee. The licensee has ceased Therasphere procedures at the facility.</br>The Agency considers this event open. The Agency will follow up with a special inspection of the licensee.</br>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.necessarily result in harm to the patient. +
05:00:00, 14 February 2025 +
57,556 +
09:31:00, 18 February 2025 +
05:00:00, 14 February 2025 +
The following information was received fro … The following information was received from the Massachusetts Radiation Control Program (the Agency) via email:</br>On 02/14/25, at 0549 EST, the licensee, Beth Israel Deaconess Medical Center reported a medical event involving Yttrium-90 Theraspheres (Nordion BWXT ITG Canada, Inc. Model TheraSphere Y-90 Glass Microsphere System, SSD NR-0220-D-131-S). The total administered activity differed from prescribed treatment activity as documented in the written directive by 20 percent or more.</br>The medical event occurred on 2/14/2025. The patient received two doses. For the first dose, the activity delivered was calculated to be 58.4 percent of the prescribed activity (prescribed activity: 1.84 GBq, delivered activity: 1.075 GBq). For the second dose, the activity delivered was calculated to be 68.6 percent of the prescribed activity (prescribed activity: 0.8 GBq, delivered activity: 0.549 GBq). The event was identified on 2/14/25. The licensee did not report if there were any adverse effects on the patient. The licensee did not report whether the authorized user, referring physician, and patient have been notified.</br>The Agency will follow up with the licensee radiation safety officer to determine the event cause and corrective actions. This is the second medical event during this week involving Theraspheres from this licensee. The licensee has ceased Therasphere procedures at the facility.</br>The Agency considers this event open. The Agency will follow up with a special inspection of the licensee.</br>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.necessarily result in harm to the patient. +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
Yttrium-90 + and Y-90 +
00:00:00, 18 February 2025 +
60-0432 +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
13:01:05, 26 February 2025 +
09:31:00, 18 February 2025 +
4.188 d (100.52 hours, 0.598 weeks, 0.138 months) +
05:00:00, 14 February 2025 +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.