Figure 1.
Morphological type and intralesional blood vessels in the gallbladder lesion.
Upper left, polypoid type; upper middle, thickened-wall type; upper right, mass-forming type. Lower left, scattered blood vessels; lower middle, linear blood vessels; lower right, branched blood vessels.
Figure 2.
Enhancement extent of the gallbladder lesions on contrast-enhanced ultrasound.
Upper left, non-enhancing; upper right, hyper-enhancing; lower left, iso-enhancing; lower-right, hypo-enhancing (arrows indicate the lesions).
Figure 3.
Intactness of the gallbladder wall on contrast-enhanced ultrasound.
Left, the gallbladder wall (arrow) beneath an adenoma is intact. Right, the gallbladder wall (arrow) beneath a cancer (arrowheads) is destructed and the infiltration to the adjacent liver (arrow) is observed.
Table 1.
Basic characteristics and baseline US characteristics of the patients with gallbladder diseases.
Table 2.
Enhancement features of the gallbladder diseases on contrast-enhanced ultrasound.
Figure 4.
Cholesterol polyp in gallbladder.
Upper left, color flow imaging shows intralesional vascularity in the polyp (arrow); Upper right, the lesion (arrow) shows hyper-enhancement during the arterial phase; Lower left, the lesion (arrow) shows iso-enhancement during the venous phase.
Figure 5.
Adenomyomatosis in gallbladder.
Upper left, conventional ultrasound shows a slight hypoechoic mass (arrow) in the gallbladder; Upper right, the lesion (arrow) shows inhomogeneous hyper-enhancement during the arterial phase; Lower left, the lesion (arrow) shows hypo-enhancement during the venous phase.
Figure 6.
Upper left, conventional ultrasound shows an isoechoic mass (calipers) in the gallbladder; Upper right, pulsatile arterial blood flow is detected in the lesion; Middle left, the lesion (arrow) shows linear blood vessels during the arterial phase; Middle right, the lesion (arrow) shows hyper-enhancement during the arterial phase; Lower left, the lesion (arrow) shows iso-enhancement during the venous phase.
Figure 7.
Adenocarcinoma in gallbladder.
Upper left, conventional ultrasound shows an isoechoic mass (arrow) and a stone (arrowhead) in the gallbladder; Upper right, color flow imaging shows intralesional vascularity (arrow); Lower left, the lesion (arrow) shows hyper-enhancement during the arterial phase and the infiltration (arrowhead) to the adjacent liver is seen; Lower right, the lesion (arrow) shows hypo-enhancement during the venous phase and the infiltration (arrowhead) to the adjacent liver is seen.
Table 3.
The independent variables associated with the GB benign diseases by multiple logistic regression analysis.
Table 4.
ROC analyses of the independent variables in differentiating malignant from benign GB diseases.
Table 5.
The advantage of CEUS measures over conventional US in the diagnosis of GB diseases.