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Acuson sequoia diagnostic ultrasound system
Official notice
31 Dec 2021
Last checked
31 Dec 2021
An official Health Canada notice concerns Acuson sequoia diagnostic ultrasound system. System overestimates the circumference when the manual trace function is used. The trace circumference value is overestimated; however, the area value is accurate. The issue is present in Sequoia's VA20A/VA25 onward as the VA20A introduced a new calculation design that did not include an optimization step of discarding pixel points that are too close together, causing the close pixel points into the accumulated circumference/distance value makes the final value highly sensitive to small trackball motions. Recall start date: 2021-12-16 Published 2021-12-31.
What to do now
Contact the manufacturer if you require additional information.
Recall number
63779
Official notice
2021-12-31
The hazard
The hazard
System overestimates the circumference when the manual trace function is used. The trace circumference value is overestimated; however, the area value is accurate. The issue is present in Sequoia's VA20A/VA25 onward as the VA20A introduced a new calculation design that did not include an optimization step of discarding pixel points that are too close together, causing the close pixel points into the accumulated circumference/distance value makes the final value highly sensitive to small trackball motions. Recall start date: 2021-12-16
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
Product 1
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: Siemens, Acuson Sequoia Diagnostic Ultrasound System.
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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