Table 4 Comparison of all hypotheses and path coefficients

Physicians’ behavioral attitude influences their intention to use CEUS

BA → BI

0.324**

0.549*

1.080

0.280

Physicians’ subjective norm influences their intention to use CEUS

SN → BI

0.183*

-0.348*

3.721

< 0.001

Physicians’ perceived behavioral control influences their intention to use CEUS

PBC → BI

0.503**

0.716**

1.391

0.164

Physicians’ intention to use CEUS influences their utilization behavior

BI → Behavior

0.316**

0.298*

0.360

0.719

Physicians’ subjective norm and their attitude to use CEUS exist

mutual relationship

SN←→BA

0.816**

0.857**

2.422

0.015

Physicians’ subjective norm and their perceived behavioral control exist mutual relationship

SN←→PBC

0.694**

0.823**

1.956

0.050

Physicians’ perceived behavioral control and their attitude to use CEUS exist mutual relationship

PBC←→BA

0.837**

0.891**

2.797

0.005