double reading
Quality assurance practice where two radiologists independently interpret the same screening mammogram to improve cancer detection accuracy.
Full Definition
Double reading is a quality assurance methodology primarily used in mammography screening programs where two qualified radiologists independently review and interpret the same imaging study without knowledge of the other's findings. This approach has been shown to increase cancer detection rates by approximately 5-15% compared to single reading, though it also increases recall rates. The practice is standard in many European screening programs but less commonly implemented in the United States due to radiologist workforce constraints. When discordant readings occur, protocols typically involve either consensus discussion or arbitration by a third reader.
Usage
Usage note: Hyphenate when used as a compound modifier (double-reading protocol).
In Context
- "The screening program implemented double reading to reduce the number of interval cancers." — quality assurance protocol
- "Cost-effectiveness analyses of double reading must account for both increased detection and higher recall rates." — health economics report