ENS 55904: Difference between revisions
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The patient had MRIs and CT Scans. Those images were fused by the neurosurgeon and radiation oncologist. Upon completion of the treatment, they discovered that although the targets were moved with the second image fusion, the shots and contours were not. This resulted in the treatment being 0.5 cm off for all 4 targets. Prescribed dose was 20 to 21 Gy, delivered dose to target tissue was 8 to 15 Gy, maximum dose to healthy tissue is estimated to range from 21.82 to 27.09 Gy. More information is expected once the licensee completes their investigation. | The patient had MRIs and CT Scans. Those images were fused by the neurosurgeon and radiation oncologist. Upon completion of the treatment, they discovered that although the targets were moved with the second image fusion, the shots and contours were not. This resulted in the treatment being 0.5 cm off for all 4 targets. Prescribed dose was 20 to 21 Gy, delivered dose to target tissue was 8 to 15 Gy, maximum dose to healthy tissue is estimated to range from 21.82 to 27.09 Gy. More information is expected once the licensee completes their investigation. | ||
Notified R1DO (Eve) and NMSS Events Notification via email. | Notified R1DO (Eve) and NMSS Events Notification via email. | ||
| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2022/ | | URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2022/20220531en.html#en55904 | ||
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Latest revision as of 06:30, 31 May 2022
| Where | |
|---|---|
| University Of Penn. Philadelphia Philadelphia, Pennsylvania (NRC Region 1) | |
| License number: | PA-0131 |
| Organization: | Pa Dept Of Environmental Protection |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+53.35 h2.223 days <br />0.318 weeks <br />0.0731 months <br />) | |
| Opened: | John Chippo 09:21 May 20, 2022 |
| NRC Officer: | Thomas Herrity |
| Last Updated: | May 25, 2022 |
| 55904 - NRC Website | |