On (b)(6) 2019, pt came to ed/ct from the ccu for a "gated cta chest".Exam was started with a topogram and premonitoring images of contrast enhancement, at 150hu the scanned would trigger the imaging to begin.Imaging would start and without notification or error the scan aborted.The same process was followed a total of three times; injecting contrast, administering radiation through imaging and scan aborting.After three consecutive failures, the pt was removed from the scanner without any usable images.Siemens field service engineer had been on site to address the issue of aborted ct scan.After evaluation of the scanner by both on line support and on site engineer the scanner was deemed operational as it had passed all the necessary tests required to resume operations.On (b)(6) 2019, the same pt that had failed imaging on (b)(6) 2019 returned to ed/ct from the ccu for a "gated cta chest".The same process began with a topogram and premonitoring images of contrast enhancement, at 150hu the scanner would trigger the imaging to begin.Imaging started and without notification or error to technologist the scan aborted.At this time the pt was removed from the scanner and returned to the ccu.Immediately a call was placed to service and the scanner was taken out of use by the physician in charge who deemed the scanner unusable.Of interest is that on this occasion a "guardian" notification was sent to the "up time" service center of siemens stating that an error had occurred.In fact the "b" tube of the scanner was no longer working as intended.Although "up time" was notified of an error, no message ever appeared to the scanning technologist.
|