FDA Adverse Event Injury Summary report: N

LIGHTSPEED VCT

MDR report key: 2080513 · Received April 22, 2011

Report

Report Number
2126677-2011-00038
Event Type
Injury
Date Received
April 22, 2011
Date of Event
November 17, 2009
Report Date
April 21, 2011
Manufacturer
GE MEDICAL SYSTEMS, LLC
Product Code
JAK
PMA / PMN Number
K061817
Adverse Event
Yes
Report Source
Manufacturer report
Reporter Location
WV, US
Reporter Occupation
RISK MANAGER

Narratives

Additional Manufacturer Narrative · 1

INVESTIGATION: GE ANALYSIS OF THE ACTUAL SCAN PARAMETERS SHOW THAT A SIGNIFICANT INCREASE TO THE KV OUTSIDE OF DEFAULT SYSTEM PARAMETERS ALSO OCCURRED. THE SITE RETRAINED THEIR STAFF OF TECHNOLOGISTS NOT TO CHANGE THE DEFAULT PROTOCOLS. TECHNIQUES AND DOSE ARE INCORPORATED INTO THE SITE'S NEW TECHNOLOGIST TRAINING AND ANNUAL EVALUATIONS. THE OPERATORS ARE LICENSED, TRAINED, AND ARE UNDER SITE-SPECIFIC PROCEDURES CONCERNING PT DOSE AND EXAM PRESCRIPTION. FACILITIES ARE RECOMMENDED TO MONITOR PT DOSE AND TO PAY CLOSE ATTENTION TO ANY EXAM PRESCRIPTION THAT COULD APPROACH LEVELS AS DISCUSSED BY THE FDA AS THRESHOLDS FOR DETERMINISTIC EFFECTS. IN ACCORDANCE WITH (B)(4) THE SYSTEM IS DESIGNED TO CALL SPECIAL ATTENTION TO ALL PRESCRIPTIONS IN WHICH THE USER IS PRESCRIBING MORE THAN ONE SCAN AT A SINGLE LOCATION. (B)(4). ADDITIONAL, PRODUCT LABELING SPECIFICALLY WARNS THE OPERATOR WITH THE FOLLOWING STATEMENT: "PROLONGED EXPOSURE TO X-RAY IN ONE SPOT MAY CAUSE REDDENING OR RADIATION BURNS. USER MUST BE AWARE OF THE TECHNIQUES USED AND EXPOSURE TIME TO INSURE SAFE OPERATION."

Description of Event or Problem · 1

IT WAS REPORTED THAT A PT EXPERIENCED LOCALIZED HAIR LOSS AFTER A BRAIN PERFUSION SCAN. INVESTIGATION: NO SYSTEM MALFUNCTION WAS REPORTED OR DETERMINED TO EXIST AFTER TROUBLESHOOTING AND INVESTIGATION. MEASUREMENT AND EVALUATION OF THE SCAN PARAMETERS USED BY THE SITE FOR THESE EXAMINATIONS SHOW THAT THE DOSE ADMINISTERED TO THE PT (4.47 GY) WAS GREATER THAN THE RECOGNIZED THRESHOLD LEVEL FOR DETERMINISTIC EFFECTS SUCH AS SKIN REDDENING AND TEMPORARY HAIR LOSS. THE DOSE PRESCRIBED BY THE SITE WAS SIGNIFICANTLY GREATER THAN GE AND THE SITE'S DEFAULT PROTOCOLS. THE GE PROVIDED PROTOCOL FOR THIS SCAN TYPE RESULTS IN A PT DOSE THAT IS SIGNIFICANTLY LOWER THAN INDUSTRY AND FDA RECOGNIZED THRESHOLD LEVELS FOR POSSIBLE DETERMINISTIC EFFECTS. THE SITE'S DEFAULT PROTOCOL FOR PERFUSION SCANNING WAS FOUND TO BE IN ACCORDANCE WITH GE REFERENCE PROTOCOL RECOMMENDATIONS FOR IMAGING AND DOSE. ACCORDING TO THE SITE, THE TECHNICIAN MANUALLY INCREASED THE MA ON THE EXAM IN ORDER TO ENHANCE THE IMAGE QUALITY ALTHOUGH IMAGES CAPTURED AT THE SITE WITH ORIGINAL UNALTERED DEFAULT PROTOCOLS WERE OF DIAGNOSTIC QUALITY.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 LIGHTSPEED VCT COMPUTED TOMOGRAPHY X-RAY SYSTEM JAK GE MEDICAL SYSTEMS, LLC 5124069-5

Patients

Seq Age Sex Outcome Treatment
1 31 YR Other