: Data-Field 31028

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Data

42,959 bulk items are available, covering 40,155 participants.
Defined-instances run from 2 to 3, labelled using Instancing 2.

The values held within this field are coded links to files held within a bulk repository, not the actual data itself.

2 Instances

Instance 2 : Imaging visit (2014+)
39,956 participants, 39,956 items
Data not meaningful for statistical summary

Instance 3 : First repeat imaging visit (2019+)
3,003 participants, 3,003 items
Data not meaningful for statistical summary

Notes

Contains the sampled (per streamline) metrics (length, sift2 weights, and mean microstructural properties) for all streamlines. These are also stored in half-precision floating-point format, with multiplicative factors of 1e3 and 1e-3 applied to the mean MD and mean S0 metrics, respectively, to scale the magnitudes of floating-point values toward unity and therefore mitigate loss of precision.

0 Related Data-Fields

There are no related data-fields

1 Resource

Preview	Name	Res ID
	Example tractography quality metrics	31028

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