972475.fig.004a
(a)
972475.fig.004b
(b)
972475.fig.004c
(c)
972475.fig.004d
(d)
972475.fig.004e
(e)
972475.fig.004f
(f)
972475.fig.004g
(g)
972475.fig.004h
(h)
Figure 4: In vivo ultrasound imaging of tumor-bearing mice before ((a), (c), and (e)) and after ((b), (d), and (f)) the administration of different contrast agents: saline solution (a and b), PTX-HPMOs (c and d), and SonoVue (e and f). Images (g) and (h) represent tumor ultrasound images after 7 days of administration of PTX-HPMOs (g) and SonoVue (h).