Characterization of Focal Liver Lesions Indistinctive on B Mode Ultrasound: Benefits of Contrast-Enhanced Ultrasound

Table 4

Results of 4-point scale grade of BMUS and CEUS in 70 indistinctive FLLs.

Four-point scale of indistinctive lesions	BMUS	CEUS
Grade 1, invisible	8	0
Grade 2, poorly visible	3	5
Grade 3, probably visible	0	15
Grade 4, distinctive	0	50

FLL: focal liver lesion; BMUS: B mode ultrasound; CEUS: contrast enhanced ultrasound.
(Fisher’s exact test).