DWI-related texture analysis for prostate cancer: differences in correlation with histological aggressiveness and data repeatability between peripheral and transition zones

Tsuruta, Chie; Hirata, Kenji; Kudo, Kohsuke; Masumori, Naoya; Hatakenaka, Masamitsu

doi:10.1186/s41747-021-00252-y

European Radiology Experimental

Table 4 Summary of the correlation between features and grade group as well as the repeatability in transition zone cancer

Base image/features	First/second	Grade group			Grade group 1, 2 vs. 3, 4, 5	ICC	95% CI	Bland-Altman plot (%)
Base image/features	First/second	Spearman's ρ	95% CI	p	AUC of ROC			Bias	SD of bias	95% LOA
ADC (100, 1,500), bin 32
SRHGE	First	0.488	0.02898 to 0.7771	0.034	0.814	0.427	-0.011 to 0.73	-21.4	27.77	-75.83 to 33.04
SRHGE	Second	0.6912	0.3326 to 0.8752	0.001	0.943	0.427	-0.011 to 0.73	-21.4	27.77	-75.83 to 33.04
busyness	First	-0.5039	-0.7853 to -0.05002	0.0278	0.814	0.576	0.188 to 0.811	21.1	77.36	-130.5 to 172.7
busyness	Second	-0.6742	-0.8675 to -0.3039	0.0015	0.929	0.576	0.188 to 0.811	21.1	77.36	-130.5 to 172.7
DWI 100, bin 32
skewness	First	-0.5232	-0.7951 to -0.07612	0.0215	0.829	0.629	0.266 to 0.837	-28.03	310.3	-636.2 to 580.1
skewness	Second	-0.4699	-0.7676 to -0.005422	0.0424	0.786	0.629	0.266 to 0.837	-28.03	310.3	-636.2 to 580.1
HGRE	First	0.5663	0.1368 to 0.8166	0.0115	0.857	0.658	0.312 to 0.852	-14.68	35.99	-85.22 to 55.85
HGRE	Second	0.5516	0.1157 to 0.8093	0.0144	0.843	0.658	0.312 to 0.852	-14.68	35.99	-85.22 to 55.85
SRHGE	First	0.5663	0.1368 to 0.8166	0.0115	0.857	0.619	0.251 to 0.833	-15.33	35.93	-85.76 to 55.1
SRHGE	Second	0.5902	0.1717 to 0.8282	0.0078	0.871	0.619	0.251 to 0.833	-15.33	35.93	-85.76 to 55.1
LRHGE	First	0.4892	0.03047 to 0.7777	0.0335	0.8	0.802	0.563 to 0.918	-12.04	37.52	-85.58 to 61.5
LRHGE	Second	0.4744	0.01126 to 0.77	0.0401	0.786	0.802	0.563 to 0.918	-12.04	37.52	-85.58 to 61.5
HGZE	First	0.5277	0.08236 to 0.7974	0.0202	0.829	0.558	0.161 to 0.802	-13.03	32.89	-77.5 to 51.44
HGZE	Second	0.5277	0.08236 to 0.7974	0.0202	0.829	0.558	0.161 to 0.802	-13.03	32.89	-77.5 to 51.44
SZHGE	First	0.5516	0.1157 to 0.8093	0.0144	0.843	0.373	-0.075 to 0.699	-14.48	33.09	-79.34 to 50.38
SZHGE	Second	0.6072	0.1974 to 0.8364	0.0058	0.886	0.373	-0.075 to 0.699	-14.48	33.09	-79.34 to 50.38
busyness	First	-0.6151	-0.8401 to -0.2095	0.0051	0.900	0.548	0.148 to 0.797	9.866	44.39	-77.14 to 96.87
busyness	Second	-0.4642	-0.7646 to 0.001836	0.0453	0.771	0.548	0.148 to 0.797	9.866	44.39	-77.14 to 96.87
DWI 0, bin 32
skewness	First	-0.5743	-0.8205 to -0.1483	0.0101	0.871	0.575	0.185 to 0.81	-55.02	303.2	-649.3 to 539.2
skewness	Second	-0.4982	-0.7824 to -0.04246	0.0299	0.800	0.575	0.185 to 0.81	-55.02	303.2	-649.3 to 539.2
HGRE	First	0.5947	0.1785 to 0.8304	0.0072	0.871	0.579	0.192 to 0.813	-14.98	34.32	-82.24 to 52.28
HGRE	Second	0.4721	0.008339 to 0.7688	0.0412	0.786	0.579	0.192 to 0.813	-14.98	34.32	-82.24 to 52.28
SRHGE	First	0.614	0.2078 to 0.8396	0.0052	0.886	0.537	0.132 to 0.791	-15.22	34.93	-83.67 to 53.24
SRHGE	Second	0.4892	0.03047 to 0.7777	0.0335	0.8	0.537	0.132 to 0.791	-15.22	34.93	-83.67 to 53.24
HGZE	First	0.5947	0.1785 to 0.8304	0.0072	0.871	0.524	0.115 to 0.784	-10.79	32.12	-73.75 to 52.18
HGZE	Second	0.4937	0.03645 to 0.78	0.0317	0.8	0.524	0.115 to 0.784	-10.79	32.12	-73.75 to 52.18

95% CI 95% confidence interval, 95% LOA 95% Limit of agreement, AUC Area under the curve, HGRE High gray-level run emphasis, HGZE High gray-level zone emphasis, ICC Intraclass correlation coefficient, LRHGE Long-run high gray-level emphasis, ROC Receiver operating characteristic, SD Standard deviation, SRHGE Short-run high gray-level emphasis, SZHGE Short-zone high gray-level emphasis

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