Per the account, the accuracy of the device deteriorates while in use.After initial registration, accuracy of the instrumentation is within specification.However; after about a half hour of use, the image data deviates considerably from the actual patient anatomy in the axial view "axis".After the operation, it was found that three of the five anatomical landmarks had deviations that were well above 1.5 mm.The procedure was completed successfully without a surgical delay; no medical intervention or adverse consequences were reported.
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