Table 3.
The ICC analysis of different parameters in patients with aGBM and PCNSL
| parameters | ICC of aGBM (95% CI) | ICCs of PCNSL (95% CI) | ||
|---|---|---|---|---|
| Intra-observer | Inter-observer | Intra-observer | Inter-observer | |
| rCBV | 0.903(0.787,0.956) | 0.894(0.767,0.952) | 0.929(0.896,0.952) | 0.858(0.798,0.901) |
| rADC | 0.926(0.838,0.935) | 0.804(0.570,0.911) | 0.900(0.853,0.932) | 0.890(0.837,0.925) |
| Ktrans | 0.817(0.598,0.917) | 0.804(0.570,0.911) | 0.826(0.743,0.881) | 0.808(0.717,0.870) |
| Kep | 0.969(0.932,0.986) | 0.885(0.763,0.946) | 0.850(0.780,0.898) | 0.877(0.824,0.915) |
| Ve | 0.959(0.911,0.981) | 0.959(0.912,0.981) | 0.909(0.866,0.938) | 0.855(0.787,0.902) |
| iAUC | 0.789(0.536,0.904) | 0.806(0.5574,0.911) | 0.805(0.713,0.867) | 0.760(0.665,0.830) |
Note. — All P < 0.001 for ICCs. aGBM = Atypical glioblastoma, iAUC = Initial area under the gadolinium concentration-time curve, ICCs = the intraclass correlation coefficients, Ktrans = Volume transfer constant, PCNSL = Primary central nervous system lymphoma, rADC = Relative apparent diffusion coefficient, rCBV = Relative cerebral blood volume, Ve = Volume of extravascular extracellular space per unit of tissue, Kep = Ktrans/Ve