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Table 2 Structure-based categorization of medical data

From: A convergence data model for medical information related to acute myocardial infarction

Category

General definition

Medical data

Structured data (S)

Data which resides in a fixed field with specifications or forms

EMR

Data which is stored in a certain field in EMR system

Meta-data

Meta-data of clinical materials like reports, images, or videos

Semi-structured data (SS)

Data that does not have fixed formats, but have some kinds of schema or organizational properties

Annotation

Additional explanation that experts manually write for images or videos. They are text descriptions, but written with certain patterns or forms

Comments of medical experts

Texts that medical experts write in medical reports. Generally they are treated as unstructured data, but medical texts have regular patterns or rules

Unstructured data (U)

Data which has no identifiable format or structure

Images/videos

Images or videos generated from medical examinations