MAN-05359-001 -001 Rev. 001 page 19 of 32
Table 21. PPA and NPA Results by Cytotechnologist Based on Adjudicated Results.
(Positive Results Mean ASC-US+)
Sequential Modality Batched Modality
PPA NPA PPA NPA
CT #1
100% 97% 97% 96%
CT #2
100% 76% 100% 79%
CT #3
91% 94% 100% 90%
Overall
97% 89% 99% 89%
Workload is defined by CLIA as a maximum limit of 100 slides in no less than an 8-hour
workday. This refers to a full manual review of 100 slides.
When using automated Imaging systems, users may need to review only a portion of the slide in
order to make a diagnosis of NILM, thereby decreasing the time needed for CT review.
Conversely, in cases where abnormality is present, the partial slide review is followed by a full
manual review, leading to a longer CT review time. In both cases, different values are used to
account for the difference in review times in order to arrive at slide workload estimates. (See
Tables 22 and 23.)
When using the Sequential Modality, the Integrated Imager scans the slide in approximately
90 seconds. This time should be considered when determining the value used for workload
calculations.
When using the Batched Modality, the scanning time is not considered in the review time, and
as such, more slides can be reviewed in an 8-hour day.
In order to help laboratories determine the workload, based on the number of slides reviewed
with FOV only and FOV+FMR, for their cytotechnologists when using the Integrated Imager,
laboratories should use the following method in Table 22 and Table 24 for Sequential
Modality and Table 23 and Table 25 for Batched Modality when calculating workload:
Tables 24 and 25 are intended to help individual cytotechnologists keep an on-going tally of the
FOV only and FOV+FMR slides screened during each workday.
Table 22. Values for Calculating Workload,
Integrated Imager, Sequential Modality
FMR = 1 slide
FOV = 0.85 slide
FMR + FOV = 1.85 slides
Upper Limit = 100 slides
When using Sequential Modality, use the following equation for determining workload:
[(# slides FMR) (1) + (# slides FOV) (0.85) + (# slides FOV+FMR) (1.85)] = 100 slides
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