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Table 4 Example of Language Variation between Two Data Sources

From: Assessment of the impact of EHR heterogeneity for clinical research through a case study of silent brain infarction

Mayo – Non-SBITMC – Non-SBI
 • No restricted diffusion.
 • No focal masses, focal atrophy, or foci of restricted water diffusion.
 • No evidence for acute ischemia on the diffusion weighted images.
• There is no acute territorial infarct.
• No acute territorial infarct.
• There is no decreased diffusion to indicate an acute infarct.
Mayo – WMDTMC – WMD
 • Mild leukoaraiosis
 • Minimal leukoaraiosis
 • Moderate leukoaraiosis
• There are scattered foci of hypodensity in the subcortical and periventricular white matter, a non-specific finding but likely reflecting the sequela of chronic microangiopathy
• Areas of white matter hypodensity are a non-specific finding but may represent the sequela of chronic microangiopathy
• There are multiple foci of t2 flair hyperintensity in the periventricular, deep and subcortical white matter, a non-specific finding but likely reflecting the sequela of chronic microangiopathy