Journal
REPRODUCTIVE BIOLOGY AND ENDOCRINOLOGY
Volume 6, Issue -, Pages -Publisher
BIOMED CENTRAL LTD
DOI: 10.1186/1477-7827-6-30
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Funding
- Canadian Institutes of Health Research (CIHR)
- Strategic Training Initiative in Research in Reproductive Health Sciences (STIRRHS)
- Saskatchewan Health Research Foundation (SHRF)
- CIHR-Regional Partnership Program
- North Ridge Innovation Fund
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Background: We recently reported poor inter-observer agreement in identifying and quantifying individual ultrasonographic features of polycystic ovaries. Our objective was to determine the effect of a training workshop on reducing inter-observer variation in the ultrasonographic evaluation of polycystic ovaries. Methods: Transvaginal ultrasound recordings from thirty women with polycystic ovary syndrome (PCOS) were evaluated by three radiologists and three reproductive endocrinologists both before and after an ultrasound workshop. The following endpoints were assessed: 1) follicle number per ovary (FNPO), 2) follicle number per single cross-section (FNPS), 3) largest follicle diameter, 4) ovarian volume, 5) follicle distribution pattern and 6) presence of a corpus luteum (CL). Lin's concordance correlation coefficients (rho) and kappa statistics for multiple raters (kappa) were used to assess level of inter-observer agreement (> 0.80 good, 0.60 - 0.80 moderate/fair, < 0.60 poor). Results: Following the workshop, inter-observer agreement improved for the evaluation of FNPS (rho = 0.70, delta rho = + 0.11), largest follicle diameter (rho = 0.77, delta rho = + 0.10), ovarian volume (rho = 0.84, delta rho = + 0.12), follicle distribution pattern (kappa = 0.80, delta kappa = + 0.21) and presence of a CL (kappa = 0.87, delta kappa = + 0.05). No improvement was evident for FNPO (rho = 0.54, delta rho = - 0.01). Both radiologists and reproductive endocrinologists demonstrated improvement in scores (p < 0.001). Conclusion: Reliability in evaluating ultrasonographic features of polycystic ovaries can be significantly improved following participation in a training workshop. If ultrasonographic evidence of polycystic ovaries is to be used as an objective measure in the diagnosis of PCOS, then standardized training modules
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