Your firm failed to establish and maintain adequate procedures to control design validation , including software validation and risk analysis, where appropriate, as required by 21 CFR 820.30(g). For example: a. Because you failed to follow your procedure, the acceptance criteria were not complete prior to the performance of validation activities. Specifically, [redacted] for ECAT scanners introduced an error in the scan start time used in the decay correction algorithm. This error was most pronounced in the TTTT/EEEE mode which was not tested during the validation of the software update.
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