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The following information was received fro … The following information was received from the California Department of Public Health via email:</br>University of California, Los Angeles (UCLA) Health reported that a patient being treated for liver cancer underwent a Y-90 brachytherapy microsphere treatment on June 9, 2025. The written directive by the authorized user called for 120 Gy each (to be administered) to both the middle section (a 3 GBq vial) and the right liver section (a 20 Gbq vial). Post therapy evaluations determined that the administered dose to the right section of the liver was 88.9 Gy (74.08 percent of the prescribed dose), which is an underdose of more than 20 percent. The administered dose to the middle section of the liver was 114.2 Gy (95.17 percent of the prescribed dose) and was in accordance with the written directive. UCLA Health is conducting an investigation and will submit a 15-day report to the California Radiation Health Branch. </br>California 5010 Number: 060925</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. +
07:00:00, 9 June 2025 +
19:35:00, 11 June 2025 +
07:00:00, 9 June 2025 +
The following information was received fro … The following information was received from the California Department of Public Health via email:</br>University of California, Los Angeles (UCLA) Health reported that a patient being treated for liver cancer underwent a Y-90 brachytherapy microsphere treatment on June 9, 2025. The written directive by the authorized user called for 120 Gy each (to be administered) to both the middle section (a 3 GBq vial) and the right liver section (a 20 Gbq vial). Post therapy evaluations determined that the administered dose to the right section of the liver was 88.9 Gy (74.08 percent of the prescribed dose), which is an underdose of more than 20 percent. The administered dose to the middle section of the liver was 114.2 Gy (95.17 percent of the prescribed dose) and was in accordance with the written directive. UCLA Health is conducting an investigation and will submit a 15-day report to the California Radiation Health Branch. </br>California 5010 Number: 060925</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>.
00:00:00, 11 June 2025 +
1335-19 +
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>.
11:20:05, 20 June 2025 +
19:35:00, 11 June 2025 +
2.524 d (60.58 hours, 0.361 weeks, 0.083 months) +
07:00:00, 9 June 2025 +
Brachytherapy + and Underdose +
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.