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Fig. 4 | EJNMMI Research

Fig. 4

From: Dopamine transporter single-photon emission computed tomography-derived radiomics signature for detecting Parkinson’s disease

Fig. 4

Receiver operating curves for semi-quantitative indices. a The AUCs and 95% confidence interval (CI) for the test dataset 1of semi-quantitative indices in each region were SURputamen (0.980, 0.951–1.000), SURpallidum (0.907, 0.831–0.982), CRputamen (0.885, 0.805–0.965), SURcaudate (0.877, 0.793–0.960), and CRpallidum (0.625, 0.502–0.747). There was a significant difference between SURputamen and other semi-quantitative indices (P < 0.001). b The AUCs and 95% confidence interval (CI) for the test dataset 2 of semi-quantitative indices in each region were SURputamen (0.929, 0.879–0.979), SURpallidum (0.925, 0.872–0.977), CRputamen (0.848, 0.740–0.834), SURcaudate (0.834, 0.740–0.927), and CRpallidum (0.780, 0.687–0.873). There was a significant difference between SURputamen and SURcaudate, (P < 0.01), or CRpallidum (P < 0.05). AUC area under the curve, CI confidence interval, SUR striatum uptake ratio, CR caudate ratio

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