Research reference only. BioConst updates and corrects content over time, but it cannot replace clinician-guided diagnosis, treatment, medication, or testing decisions.

Medical Wiki

Scanner reference database

A measurement-context node for the reference population and device/software assumptions behind T-score and Z-score.

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What it is

The scanner reference database is the comparison population and software context that turns a measured density into comparison scores.^[1,2]

Why it matters

T-score and Z-score are not raw density; they are comparisons against reference groups, so the reference context belongs in the graph.^[2]

What it affects

A report number may depend on site, scanner, software, and reference-population rules.^[1]
This node helps separate measurement comparison mechanics from a direct statement about bone biology.^[2]

Interpretation traps

BioConst does not convert scores across devices or assert that two reports are interchangeable.^[1]

Related conditions

Osteoporosis and fragility fracture Low bone mass / osteopenia