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Catalyst hd and catalyst+ hd systems
Official notice
21 Oct 2025
Last checked
21 Oct 2025
An official Health Canada notice concerns Catalyst hd and catalyst+ hd systems. C-RAD has noted a potential issue affecting the CSRs mode of the Catalyst+ HD and Catalyst HD systems. The issue is that the stated precision of the catalyst system for stereotactic radiosurgery (SRS) treatments cannot be guaranteed for all couch angles and system setups. In certain cases, the system may indicate the patient as correctly positioned at the isocenter, even when the isocenter is positioned outside of the indicated tolerance. This could in the worstcase result in erroneous dose delivery. Published 2025-10-21.
What to do now
Contact the manufacturer if you require additional information.
Recall number
78329
Official notice
2025-10-21
The hazard
The hazard
C-RAD has noted a potential issue affecting the CSRs mode of the Catalyst+ HD and Catalyst HD systems. The issue is that the stated precision of the catalyst system for stereotactic radiosurgery (SRS) treatments cannot be guaranteed for all couch angles and system setups. In certain cases, the system may indicate the patient as correctly positioned at the isocenter, even when the isocenter is positioned outside of the indicated tolerance. This could in the worstcase result in erroneous dose delivery.
How to check if you're affected
How to check if you're affected
Compare the product name and identifiers below with the item you own. Follow the official notice if they match.
Recall Numbers
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Affected products
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Risk / hazard
Where it was sold
Where it was sold
The source does not list specific retailers. See the official notice for where affected products were sold.
Location 1
Affected area 1
Company & contacts
Company & contacts
Brand: C-rad Positioning, Catalyst HD And Catalyst+ HD.
Source & status
Source & status
Source
Tier
Category
Classification
App estimate
Recall details
Recall details
Recall number
Classification
Source tier
Documents, notices & source
See the official notice and source documents for full details.
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