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Detailed investigation of the available log files showed no dose regulation issue.The dose levels were in accordance with the system settings and imaging conditions, as well as the applicable regulatory requirements.However, the dose was not displayed on the monitor as the dose area profile (dap) chamber, which is used for the dose value display, was defective.The chamber was replaced as part of a service activity, which resolved the issue.The occurrence rate of the aforementioned error pattern was checked.A possible error accumulation or even a systematic error, which leads to a corrective action of the installed base, could not be determined by the investigation.The dose display issue does not have affect system functionalities, e.G., x-ray, movement, or the dose regulation.The incident described in the adverse event is therefore not classified as a reportable event after a thorough investigation because neither serious injury, death, nor unexpected prolonged hospitalization of the patient or other person occurred or is to be expected, even if the incident recurs.
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