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Figure 4 | BMC Neurology

Figure 4

From: Signal alterations of the basal ganglia in the differential diagnosis of Parkinson’s disease: a retrospective case-controlled MRI data bank analysis

Figure 4

Test/retest and interrater reliability according to Bland-Altman. Horizontal lines indicate δ (bias – straight line) and the 2σ intervall (δ ± 2σ, σ - standard deviation – dashed line, limit of accordance). A: test/retest (intra-rater) reliability of 94% is within the limit of accordance. B: inter-rater reliability of 96% is within the limit of accordance. SI (ROI) is the average signal intensity within a ROI in a.u., ΔSI (ROI) is the test difference in a.u.

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BMC Neurology

ISSN: 1471-2377

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