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kVp Values Used During Medical Physicist Survey Testing |
 | | In cases where the kVp is selected by the operator, we have required the physicists to perform some tests at the kVp normally used clinically at the facility (except for surveys that are done before the facility has established that value, such as mammography equipment evaluations of new units). |
| | The kVp used in the survey/mammography equipment evaluation tests of reproducibility (both for kVp and AEC performance), HVL, dose, and phantom image evaluation (i.e., for all inspection questions where "the kVp used clinically," appears.) must not exceed +/- 1 kVp from the clinical kVp. |
| | For the kVp accuracy test and the kVp tracking portion of the AEC performance test, only the values used clinically at the facility need to be tested, up to a maximum of 3 values. |
| www.fda.gov /cdrh/mammography/robohelp/med_phys_srvy_kvp_valus_during_testing.htm (284 words) |
