Table 4 Number of controls without MRI features of cyst infection and intracystic changes, and the specificity of each MRI feature and intracystic changes in four groups stratified by TKLV
All controls (n=147) | Controls with TKLV < 3000 cm3 (n=39) | Controls with TKLV 3000 to < 5500 cm3 (n=35) | Controls with TKLV 5500 to <8500 cm3 (n=35) | Controls with TKLV >8500 cm3 (n=38) | p-value | |
|---|---|---|---|---|---|---|
Number of patients(M/F) | 147 (62/85) | 39 (14/25) | 35 (14/21) | 35 (19/16) | 38 (15/23) | NS |
Age (years) | 53.3 ± 11.0 | 50.3 ± 14.7 | 52.3 ± 8.8 | 55.4 ± 9.5 | 55.4 ± 9.1 | NS |
Renal function (Dialysis %) | 49.0 | 5.1 | 31.4 | 74.3 | 86.8 | <0.0001 |
Without high SI on DWI (%) | 33.3 | 69.2 | 37.1 | 14.3 | 10.5 | <0.0001 |
Without fluid-fluid level (%) | 87.1 | 100.0 | 82.9 | 82.9 | 81.6 | <0.01 |
Without wall thickening (%) | 89.1 | 100.0 | 94.3 | 82.9 | 79.0 | <0.005 |
Without fluid-fluid level or wall thickening (%) | 80.3 | 100.0 | 82.9 | 71.4 | 65.8 | <0.0001 |
Without gas (%) | 100 | 100 | 100 | 100 % | 100 | NS |
None of the four features (%) | 32.0 | 69.2 | 34.3 | 14.3 | 7.9 | <0.0001 |
Without high SI on DWI (diameter > 5cm) (%) | 84.4 | 100.0 | 94.3 | 77.1 | 65.8 | 0.0001 |
Without fluid-fluid level or wall thickening (diameter > 5cm) (%) | 91.2 | 100.0 | 94.3 | 94.3 | 76.3 | <0.005 |
Without at least one of the four features (diameter > 5cm) (%) | 81.6 | 100.0 | 91.4 | 74.3 | 60.5 | 0.0001 |