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Validation of A Nationwide Digital Pediatric Pathology Consultation Network
Haiying Chen1,2, Juan Putra1,2, Anita Nagy1,2
1Division of Pathology, The Hospital for Sick Children, Toronto, ON, Canada.
Background:
Digital pathology facilitates remote pathology consultations. Pediatric pathologists in Canada formed a nationwide digital pathology consultation network, mostly for second opinion review of pediatric cancer cases. Validation of such a large network for clinical use is challenging. Here we report our unique validation process of this digital pathology network.
Method:
This study was designed in keeping with the College of American Pathologist (CAP) guidelines, and included 14 pathologists from 9 hospitals across Canada. All cases are pediatric pathology cases. Each pathologist reviewed multiple digital cases and the corresponding glass slide cases. For each review, intra-observer concordance (diagnosis on digital case versus diagnosis on glass slide case) was recorded, creating a data point.
Result:
The study generated 269 valid diagnostic data points. Out of the 269 data points, 257 were concordant (95.5% concordance), exceeding the CAP recommendation of 95% concordance. Thus, the network was successfully validated.
Conclusion:
This is a unique validation study for a large nationwide digital pediatric pathology network. The study involved all pathologists/hospitals in the network, closely emulating real world clinical process. The network was successfully validated.
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