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Using Systemised Nomenclature of Medicine (SNOMED) codes to select digital pathology whole slide images for long-term
Mahmoud Ali1,2, Harriet Evans1, Peter Whitney1
1Histopathology Department, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK.
Abstract:
The archiving of whole slide images represents a hurdle to digital pathology implementation largely because of the amount of data generated. The retention of glass slides is currently recommended for a minimum of 10 years, but it is for individual departments to determine how digital images are archived and for how long. In a retrospective study, we examined the combination of Systemised Nomenclature of Medicine (SNOMED) codes allocated to cases reported between July 2011 and December 2015 and recalled more than 12 months after diagnosis in comparison to non-recalled cases.Our results show that 0.2% of cases are recalled after 12 months, and SNOMED code combinations can be used to identify which cases are likely to be recalled and which are not. This approach could reduce the number of cases archived by 62% and still ensure all cases likely to be recalled remain in the archive.
