Table 3 Number of episodes in cases with positive MRI features of cyst infection and intracystic changes, and the sensitivity of each MRI feature and intracystic changes in four groups stratified by TKLV
All episodes in cases (n=88) | Cases with TKLV < 3000 cm3 (n=13) | Cases with TKLV 3000 to <5500 cm3 (n=39) | Cases with TKLV 5500 to 8500 cm3 (n=17) | Cases with TKLV >8500 cm3 (n=17) | p-value | |
|---|---|---|---|---|---|---|
Number of episodes(M/F) | 88 (39/49) | 13 (0/13) | 39 (16/23) | 17 (8/9) | 17 (14/3) | <0.0001 |
Age | 64.6 ± 10.7 | 63.4 ± 17.1 | 65.5 ± 11.0 | 66.6 ± 7.7 | 61.8 ± 5.8 | NS |
Renal function (Dialysis %) | 80.2 | 92.3 | 76.9 | 70.6 | 88.2 | NS |
High SI on DWI (%) | 86.4 | 92.3 | 82.5 | 82.4 | 94.4 | NS |
Fluid-fluid level (%) | 50.0 | 38.5 | 55.0 | 58.8 | 38.9 | NS |
Wall thickening (%) | 48.3 | 53.9 | 45.0 | 47.1 | 52.9 | NS |
Fluid-fluid level or wall thickening (%) | 84.1 | 84.6 | 85.0 | 82.4 | 83.3 | NS |
Gas (%) | 1.1 | 0 | 2.5 | 0 | 0 | NS |
At least one of these four features (%) | 100 | 100 | 100 | 100 | 100 | NS |
High SI on DWI with diameter > 5cm (%) | 69.3 | 53.9 | 67.5 | 82.4 | 72.2 | NS |
Fluid-fluid level or wall thickening with diameter > 5cm (%) | 72.7 | 53.9 | 75.0 | 82.4 | 72.2 | NS |
At least one of these four features with diameter > 5cm (%) | 83.0 | 61.5 | 85.0 | 100.0 | 77.8 | NS |