Table 3. Stratified analysis of different tasks.
| T1 indices | NLF | ALBI 1+2+3 | NLF + ALBI 1 | ALBI 2+3 | NLF + ALBI 1+2 | ALBI 3 | P1 | P2 | P3 |
|---|---|---|---|---|---|---|---|---|---|
| T1pre (ms) | 839 [92] | 941 [156] | 873 [100] | 948 [172] | 916 [139] | 901 [196] | <0.001 | <0.001 | 0.845† |
| T1post (ms) | 223 [43] | 403 [151] | 255 [64] | 438 [156] | 320 [116] | 584 [170] | <0.001 | <0.001 | <0.001 |
| ΔT1 | 0.75 [0.08] | 0.57 [0.16] | 0.71 [0.08] | 0.54 [0.17] | 0.65 [0.12] | 0.33 [0.22] | <0.001 | <0.001 | <0.001 |
| Khep | 0.26 [0.18] | 0.10 [0.09] | 0.25 [0.17] | 0.07 [0.08] | 0.17 [0.15] | 0.01 [0.03] | <0.001 | <0.001 | <0.001 |
Data are conventionally expressed as the median [interquartile range]. P1: P for task 1 (NFL vs. ALBI 1+2+3); P2: P for task 2 (NLF + ALBI 1 vs. ALBI 2+3); P3: P for task 3 (NLF + ALBI 1+2 vs. ALBI 3). †, P>0.05. ALBI, albumin-bilirubin; ΔT1, rate of decrease in the T1 relaxation time; Khep, hepatocyte uptake rate; NLF, normal liver function; T1, the longitudinal relaxation time; T1pre, T1 value before enhancement; T1post, T1 value after enhancement.