Reliability and diagnostic performance of smartphone colposcopy

Autor: Mustafa Maraşlı, Hanife Dural, Gürkan Kıran, Serdar Aydin, Neslihan Bademler, Ayse Filiz Gokmen Karasu
Přispěvatelé: GÖKMEN KARASU, AYŞE FİLİZ
Rok vydání: 2021
Předmět:
Zdroj: International Journal of Gynecology & Obstetrics. 155:404-410
ISSN: 1879-3479
0020-7292
DOI: 10.1002/ijgo.13662
Popis: Objective To evaluate the interobserver and intraobserver reliability of smartphone colposcopy (SPC) versus conventional colposcopy and to determine diagnostic performance. Methods A smartphone back camera was used to capture cervical images before and after application of acetic acid, and after application of lugol solution. Captured images were reviewed independently by two experienced colposcopists and findings were noted as per colposcopy. Smartphone-based diagnostic performance was calculated, and kappa statistics were used for measurement of agreement between SPC and conventional colposcopy findings. Results A total of 114 women were included in the study. The kappa statistic for intraobserver reliability was 0.77 for both normal colposcopic findings and the transformation zone, indicating substantial agreement. Kappa values were 0.54 for acetowhite epithelium, 0.51 for lugol staining, and 0.51-0.60 for atypical vascularization. Kappa values for interobserver reliability were 0.76 for normal colposcopic findings, 0.56 for acetowhite epithelium, and 0.60 for lugol staining. The sensitivity, specificity, PPV, and NPV of SPC for CIN2+ were 88.2 (95% CI, 72.5-96.7), 48.7 (95% CI, 37.4-60.2), 0.42 (95% CI, 0.36-0.48), and 0.91 (95% CI, 0.79-0.96), respectively. Conclusion SPC showed substantial agreement between the histologic diagnoses based on the captured images and conventional colposcopic findings.
Databáze: OpenAIRE
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