“…The random QC slides are selected blindly by our laboratory computer system. In contrast, all routine, laboratory-processed negative gynecologic smears from non-high-risk women can be processed by the AutoPap 300 QC System (AP 300) (NeoPath Inc., Redmond, Washington, U.S.A.), a noninteractive, automated rescreening system that examines conventionally prepared cervical cytologic smears [6][7][8] and that then selects slides for QC rescreening by scoring and ranking the slides on the basis of a complex set of algorithms designed to detect abnormal cytologic features. 6 The slides selected by the AP 300 for QC review should be those most likely to contain abnormal cells.…”