Fig. 2

Monitoring of the thrombus formation of the inferior vena cava (IVC) through ultrasound imaging. a Representative images of the IVC in the axial view in the control group (left panel) and DVT model within 24 h (right panel). A thrombus is visualized in axial views. b Representative images of blood flow velocity depicted by using pulse-wave Doppler; no flow was observed in the DVT mouse model. c Blood flow velocity can also be depicted by color Doppler. In the DVT mouse model, the absence of flow is depicted by the absence of color