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 3 Summary of the correlation between features and grade group as well as the repeatability in peripheral 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	ICC	95% CI	Bias	SD of bias	95% LOA
ADC (0, 1,000)
ADC 10%	First	-0.4027	-0.6725 to -0.03854	0.0273	0.732	0.773	0.580 to 0.885	-0.2016	21.15	-41.65 to 41.25
ADC 10%	Second	-0.4241	-0.6864 to -0.06427	0.0195	0.737	0.773	0.580 to 0.885	-0.2016	21.15	-41.65 to 41.25
ADC 25%	First	-0.3638	-0.6467 to 0.007035	0.0481	0.705	0.825	0.667 to 0.912	0.06553	15.54	-30.40 to 30.53
ADC 25%	Second	-0.411	-0.6779 to -0.04843	0.0241	0.728	0.825	0.667 to 0.912	0.06553	15.54	-30.40 to 30.53
ADC (0, 1,500)
ADC 5%	First	-0.3738	-0.6534 to -0.004499	0.0419	0.705	0.817	0.654 to 0.908	-8.692	19.58	-47.08 to 29.69
ADC 5%	Second	-0.4389	-0.6959 to -0.08239	0.0152	0.759	0.817	0.654 to 0.908	-8.692	19.58	-47.08 to 29.69
ADC 10%	First	-0.418	-0.6824 to -0.05691	0.0215	0.737	0.829	0.674 to 0.915	-7.875	15.9	-39.04 to 23.29
ADC 10%	Second	-0.463	-0.7111 to -0.1123	0.01	0.763	0.829	0.674 to 0.915	-7.875	15.9	-39.04 to 23.29
ADC 25%	First	-0.4035	-0.673 to -0.03941	0.027	0.714	0.865	0.738 to 0.933	-5.203	11.99	-28.71 to 18.31
ADC 25%	Second	-0.3736	-0.6532 to -0.004216	0.042	0.71	0.865	0.738 to 0.933	-5.203	11.99	-28.71 to 18.31
ADC (100, 1,000)
ADC 10%	First	-0.4083	-0.6761 to -0.04522	0.0251	0.732	0.75	0.542 to 0.872	-6.843	21.59	-49.16 to 35.47
ADC 10%	Second	-0.5043	-0.7368 to -0.1652	0.0045	0.786	0.75	0.542 to 0.872	-6.843	21.59	-49.16 to 35.47
ADC 25%	First	-0.4103	-0.6774 to -0.04755	0.0243	0.723	0.786	0.601 to 0.892	-4.467	15.91	-35.66 to 26.73
ADC 25%	Second	-0.4555	-0.7064 to -0.1029	0.0114	0.754	0.786	0.601 to 0.892	-4.467	15.91	-35.66 to 26.73
ADC 50%	First	-0.3794	-0.6571 to -0.01101	0.0387	0.692	0.82	0.658 to 0.910	-3.982	11.12	-25.77 to 17.81
ADC 50%	Second	-0.4013	-0.6715 to -0.0368	0.028	0.714	0.82	0.658 to 0.910	-3.982	11.12	-25.77 to 17.81
ADC (100, 1,500)
ADC 5%	First	-0.3903	-0.6643 to -0.02385	0.033	0.719	0.816	0.651 to 0.907	-4.456	18.31	-40.35 to 31.44
ADC 5%	Second	-0.4142	-0.6799 to -0.05222	0.0229	0.746	0.816	0.651 to 0.907	-4.456	18.31	-40.35 to 31.44
ADC 10%	First	-0.4275	-0.6886 to -0.06841	0.0184	0.741	0.839	0.692 to 0.920	-6.85	12.82	-31.97 to 18.27
ADC 10%	Second	-0.4591	-0.7087 to -0.1074	0.0107	0.763	0.839	0.692 to 0.920	-6.85	12.82	-31.97 to 18.27
ADC 25%	First	-0.4528	-0.7047 to -0.09954	0.012	0.746	0.843	0.699 to 0.922	- 5.629	10.96	-27.10 to 15.85
ADC 25%	Second	-0.4039	-0.6733 to -0.03999	0.0268	0.732	0.843

95% CI 95% confidence interval, 95% LOA 95% Limit of agreement, AUC Area under the curve, ICC Intraclass correlation coefficient, ROC Receiver operating characteristic, SD Standard deviation

Back to article page