FDA Adverse Event Malfunction Summary report: N

ACUITY CONEBEAM COMPUTED TOMOGRAPHY

MDR report key: 997890 · Received January 24, 2008

Report

Report Number
8020711-2007-00010
Event Type
Malfunction
Date Received
January 24, 2008
Date of Event
August 22, 2007
Report Date
August 22, 2007
Manufacturer
VARIAN MEDICAL SYSTEMS
Product Code
KPQ
PMA / PMN Number
K033339
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
GM
Reporter Occupation
PHYSICIAN

Narratives

Additional Manufacturer Narrative · 1

METHOD: A DEVICE FROM SAME LOT OF THE ACTUAL DEVICE INVOLVED IN INCIDENT WAS EVALUATED. DEVICE EVALUATED WITH RESPECT TO OPERATIONAL ENVIRONMENT. VARIAN VERIFIED AND CONFIRMED THE PROBLEM USING A DEMO SYSTEM. RESULTS: THE IMAGE ORIENTATION TAG IN CBCT SLICES (DICOM EXPORT IN CBCT APPLICATION) ARE NOT SET APPROPRIATELY AND RESULT IN A FAILURE TO IMPORT CT SLICES IN ANY SYSTEM (E.G. ECLIPSE OR THIRD PARTY SYSTEMS). ONLY CT SCANS WITH A PT ORIENTATION HEAD FIRST - SUPINE (HFS) ARE IMPORTED CORRECTLY. BECAUSE OF THIS SOFTWARE ANOMALY, WHEN OTHER ORIENTATIONS ARE IMAGED, THE IMAGE WILL BE "MIRRORED" WHEN IMPORTED INTO ECLIPSE OR OTHER APPLICATIONS. IMPORT OF NON HFS CBCT SCANS INTO ANY PLANNING SYSTEM REFLECTS INCORRECT IMAGE ORIENTATION, (ROTATED OR MIRRORED VIEWS) WHICH MAY RESULT IN IMPROPER PLANNING AND LEAD TO A POTENTIAL MISADMINISTRATION. CONCLUSION: CUSTOMERS USING ON-BOARD-IMAGING FOR PLANNING WITH CBCT SCANS IS NOT AN INTENDED USE CASE. IF USED FOR PLANNING, THE COMPARISON OF A MIRRORED CBCT IMAGE FROM OBI VERSUS A REFERENCE IMAGE SUCH AS CT SCAN WOULD IDENTIFY THE INCORRECT ORIENTATION. THEREFORE, THE SOFTWARE ANOMALY DOES NOT POSE A SIGNIFICANT HAZARD. HOWEVER, CUSTOMERS USING ACUITY, PLANNING WITH CBCT SCANS IS AN INTENDED USE CASE AND PRESENTS A POTENTIAL RISK FOR MISADMINISTRATION BECAUSE OF THE INCORRECT IMAGE ORIENTATION FOR NON-HFS SCANS. A PRODUCT NOTIFICATION LETTER WILL BE SENT TO AFFECTED CUSTOMERS. ALL CORRECTIVE ACTION WILL BE REPORTED UNDER THE GUIDELINES ANTICIPATED.

Description of Event or Problem · 1

A VARIAN CUSTOMER REPORTS "WHEN SCANNING PATIENTS IN THE PRONE POSITION FOR PLANNING, THE TAG IS DISPLAYED INCORRECTLY. ALL ACUITIES WITH CBCT 2.0.11 SP2 (NLS OR NOT) HAVE THE PROBLEM. ONLY HFS SHOULD CURRENTLY BE USED FOR ACUITY CBCT 2.0.11 SP2."

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 ACUITY CONEBEAM COMPUTED TOMOGRAPHY ACUITY CBCT KPQ VARIAN MEDICAL SYSTEMS

Patients

Seq Age Sex Outcome Treatment
1 Other