Table 2:
Mean radiological and pathological tumor size stratified by modality and clinically relevant size subgroups
| Imaging modality |
Pathological size range (cm) |
n | Median time between modality (days) |
Mean imaging diameter (SD) (cm) |
Mean pathological diameter (SD) (cm) |
Difference | P |
|---|---|---|---|---|---|---|---|
| CT Scan | Overall | 57 | 35 | 3.15 (1.84) | 2.82 (1.25) | 0.33 | 0.017 |
| <3 | 32 | 32 | 2.25 (0.89) | 2.07 (0.56) | 0.18 | 0.199 | |
| ≥3 | 25 | 35 | 4.29 (2.04) | 3.78 (1.21) | 0.51 | 0.046 | |
| MRI | Overall | 57 | 87 | 3.09 (1.76) | 2.82 (1.25) | 0.27 | 0.038 |
| <3 | 32 | 72 | 2.37 (0.98) | 2.07 (0.56) | 0.30 | 0.049 | |
| ≥3 | 25 | 78 | 4.00 (2.04) | 3.78 (1.21) | 0.23 | 0.310 | |
| EUS | Overall | 57 | 65 | 2.77 (1.14) | 2.82 (1.25) | −0.05 | 0.690 |
| <3 | 32 | 69 | 2.26 (0.95) | 2.07 (0.56) | 0.19 | 0.202 | |
| ≥3 | 25 | 56 | 3.43 (1.01) | 3.78 (1.21) | −0.35 | 0.059 |
Note: The statistical test performed was a one-way within subjects analysis of variance (ANOVA) on the cyst diameter size between CT,MRI, and EUS pathology.