The accuracy of Kato's self smear Kit was studied in screening a relatively unselected population group for cervical cancer. Routine cervicovaginal smears taken periodically would be the ideal method but would be unrealistic in view of the physician's time involved when considered on a large population scale. Three hundred patients were randomly selected at the Out Patient Clinic of Yonsei Medical Center and 26 cases grossly of cervical cancer were included in this group. We have here summarized the results briefly as follows. 1. Among 300 women examined in our OPD, 256 (85.3%) were classified as Pap. Class I or II, 9(0.3%) as a 'Defferred' group (Class II, Repeat), 18(6%) as Class III and 17(5.7%) as Class IV or V. 2. Fifteen of the total cases had insufficient material for evaluation (poor quality) and the major causes of the poor smears were vaginal douche within 24 hours, technical problems and cell degeneration. 3. The rate of agreement between the Self Smear Kit and cervicovaginal smear was as follows: a. The rate of complete agreement was 93.2% (280/300) b. The rate of complete or partial agreement was 96.7% (290/300). 4. The diagnostic accuracy of the Self Smear Kit was as follows: a. If we assumed the 'Deferred' group to be detection failures for uterine cancer, the diagnostic accuracy would be 82.4%. b. If we assumed the 'Deferred' group to be detection successes, the diagnostic accuracy would be 94.1%. 5. The quality of self smears was superior when taken by an aid nurse rather than by the patient herself. 6. Optimal time for good preservation with the Self Smear Kit prior to pap. stain under the following temperatures was proven experimentally to be as follows; a. At 5 degrees C: 3 days after smear b. At 15 degrees C: 3 days after smear c. At 30 degrees C: 2 days after smear
Adult ; Cervix Neoplasms/prevention & control* ; Female ; Human ; Mass Screening/methods* ; Middle Age ; Vaginal Smears/instrumentation ; Vaginal Smears/methods*

OBJECTIVETo investigate the value of computer-assisted slide-screening system (ThinPrep imaging system, TIS) in the diagnosis of cervical Thinprep smears.

METHODSA total of 19 600 ThinPrep smears were collected, including 9800 slides by TIS-assisted screening from September 2011 to March 2012 and 9800 slides by manual screening from September 2010 to April 2011 as control. The detection rates of abnormal cells and common microbial infection by the different screening methods were compared. With histopathological diagnosis of colposcopic biopsy as the gold standard, the screening efficiency and correlation of cytologic diagnosis among different screening methods were analyzed.

RESULTSCompared with manual screening, the detection rate of abnormal cells in 9800 cases by TIS-assisted screen was increased from 5.4% (525/9800) to 6.8% (665/9800), mainly in the categories of ASCUS and LSIL (P < 0.05). TIS had a higher accordance rate between cytologic diagnosis and histopathological diagnosis in the NILM and ASCUS than that by manual screening. False-negative rate of finding abnormal cells by TIS decreased from 8.5% (17/200) to 0.7% (2/289, P < 0.01) with an increased sensitivity compared to manual screening, although the specificity was similar. Both TIS and manual screening had advantages and disadvantages respectively in the detection of microbial organisms. TIS improved screening efficiency by 50%.

CONCLUSIONTIS improves not only the screening efficiency but also the detection of abnormal cells with a reduced false negativity, and it therefore has a broad application prospect.

Adenocarcinoma ; diagnosis ; pathology ; Adolescent ; Adult ; Aged ; Aged, 80 and over ; Candida ; isolation & purification ; Carcinoma, Squamous Cell ; diagnosis ; pathology ; Cervical Intraepithelial Neoplasia ; diagnosis ; pathology ; Cytodiagnosis ; False Negative Reactions ; Female ; Humans ; Image Processing, Computer-Assisted ; instrumentation ; Mass Screening ; Middle Aged ; Sensitivity and Specificity ; Trichomonas vaginalis ; isolation & purification ; Uterine Cervical Dysplasia ; diagnosis ; pathology ; Uterine Cervical Neoplasms ; diagnosis ; pathology ; Vaginal Smears ; Young Adult