Table 3. MR characteristics of the 112 nodules showing atypical AASLD HCC enhancement patterns during CT dynamic studies.
| MR imaging | HCC (n = 79) | DN (n = 33) | P value |
| Tumor size (cm) | 2.1±0.9 | 1.5±0.4 | <0.001 |
| T2WI | |||
| Hyper | 48 | 4 | <0.001 |
| Iso/Hypo | 31 | 29 | |
| T1WI | 0.012 | ||
| Iso/Hyper | 50 | 29 | |
| Hypo | 29 | 4 | |
| Fatty metamorphosis | 0.547 | ||
| Yes | 12 | 3 | |
| No | 67 | 30 | |
| Typical HCC enhancing pattern on MRI | 0.01 | ||
| Yes | 14 | 0 | |
| No | 65 | 33 | |
| Hepatocyte phase | <0.001 | ||
| Hypo | 66 | 5 | |
| Hyper-/Iso | 13 | 28 | |
| Hypervascularity on arterial phase of dynamic MRI | <0.001 | ||
| Yes | 41 | 5 | |
| No | 38 | 28 | |
| Washout on venous phase of dynamic MRI | 0.001 | ||
| Yes | 43 | 7 | |
| No | 36 | 26 |
T2WI = T2 weighted imaging; T1WI = T1 weighted imaging; HCC = hepatocellular carcinoma; DN = dysplastic nodule; Hyper = hyperintense; Iso = isointense; Hypo = hypointense; AASLD = American Association for the Study of Liver Diseases; Value was depicted as mean ± standard deviation.