Recall Z-2039-2023 ยท MUJ System, Planning, Radiation Therapy Treatment
RaySearch America Inc
Radiation therapy software, RayStation standalone software treatment planning system. Model numbers: 8B, 8B SP1, 8B SP2, 9A, 9B, 9B SP1, 10A, 10A SP1 and 10B. Software versions: 8.1, 9.0, 9.1, 9.2, 10.0, 10.1.
| Date | Jun 29, 2023 (initiated Jan 22, 2021) |
| Status | Terminated |
| Reason | A software bug affecting results when using deep learning (DL) segmentation followed by geometrical functions: Create wall function, Expand Contract function or ROI algebra function, the results are incorrect. If dose statistics for an incorrectly created ROI are used to determine if a plan is acceptable for treatment, this could potentially lead to an inappropriate plan being approved. The error could lead to a more conservative or more liberal plan than intended. |
| Root cause | Software design |
| Action | Field Safety Notice 73474 was emailed January 22, 2021 to affected customers. The notice identifies affected RayStation models: 8B, 8B SP1, 8B SP2, 9A, 9B, 9B SP1, 10A, 10A SP1 and 10B running software versions RS 8.1, 9.0, 9.1, 9.2, 10.0, 10.1. Users are instructed not to use Create wall, Expand/Contract, or ROI algebra functions directly on ROIs created by the DL segmentation. Instead, convert the ROIs to contour or mesh representation before using the affected functions. Users are to confirm they read and understood the notice by replying to the email. Error fixed in RS 10B Service Pack 1 |
| Quantity | 5 systems |
| Distribution | US: AZ, CA, GA & WA |
| FDA record | Open on fda.gov |
510(k) clearances named in this recall
| K200569 | RayStation RaySearch Laboratories AB (PUBL), Sep 24, 2020 |