Effects of Gray-Scale Ultrasonography Immediate Post-Contrast on Characterization of Focal Liver Lesions
Table 5
Imaging characteristic of US pre-CEUS versus US post-CEUS in 41 hemangiomas.
Imaging characteristic
Grading
Pre-CEUS
Post-CEUS
P value
Size
Enlarged
—
6
—
Margin definition
Poor
4 (9.8)
2 (4.9)
0.043
Intermediate
17 (41.4)
8 (19.5)
Good
20 (48.8)
31 (75.6)
“Halo” sign
−
39 (95.1)
40 (97.6)
>0.05
+
2 (4.9)
1 (2.4)
Echogenic rim
−
23 (56.1)
10 (24.4)
0.003
+
18 (43.9)
31 (75.6)
Echogenicity
Hyperechoic
14 (34.2)
10 (24.4)
>0.05
Iso-echoic
6 (14.6)
12 (29.3)
Hypoechoic
21 (51.2)
19 (46.3)
Internal texture
Homogenous
24 (58.5)
15 (36.6)
0.047
Heterogeneous
17 (41.5)
26 (63.4)
“Mosaic” or “nodule in nodule”
3
2
>0.05
Inner granular hypoecho#
9
18
0.034
Posterior acoustic enhancement*
−
17 (63.0)
21 (77.8)
>0.05
+
10 (37.0)
6 (22.2)
Spatial resolution
Poor
8 (19.5)
6 (14.6)
>0.05
Intermediate
13 (31.7)
11 (26.8)
Good
20 (48.8)
24 (58.6)
Contrast resolution
Poor
14 (34.1)
7 (17.1)
0.034
Intermediate
17 (41.5)
13 (31.7)
Good
10 (24.4)
21 (51.2)
Note: the data refers to lesion number if not specified. The data in parentheses were percentages. *Sometimes, it was not feasible to observe the posterior echo of lesions due to undesirable locations. #The presence of multiple small hypoechoic areas in the hyperechoic lesion.
