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Table 3

Difference in the HU values of primary morphological types I–IV compared with cysts, as well as of primary morphological types I–III and cysts compared with type IV.

Morphology Mean HU value ± SD
Min – Max HU value
Type X Cysts p-value Type X Type IV p-value
Type I 14.9 ± 11.5 2.9 ± 4.5 <0.0001 14.9 ± 11.5 39.8 ± 17.2 <0.0001
−16.4–52.5 −9.9–10.8 −16.4–52.5 3.0–76.9
Type II 17.7 ± 14.2 2.9 ± 4.5 <0.0001 17.7 ± 14.2 39.8 ± 17.2 <0.0001
−3.0–63.1 −9.9–10.8 −3.0–63.1 3.0–76.9
Type III 13.5 ± 11.5 2.9 ± 4.5 <0.0001 13.5 ± 11.5 39.8 ± 17.2 <0.0001
−3.4–49.5 −9.9–10.8 −3.4–49.5 3.0–76.9
Type IV/cysts 39.8 ± 17.2 2.9 ± 4.5 <0.0001 2.9 ± 4.5 39.8 ± 17.2 <0.0001
3.0–76.9 −9.9–10.8 −9.9–10.8 3.0–76.9

HU = Hounsfield Unit; SD = standard deviation; max = maximum; min = minimum. p < 0.05 statistically significant.

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