Fig. 7
From: Effects of HIFU induced cavitation on flooded lung parenchyma
Hematoxylin and eosin stained sections of lung tissue sampled out of (a) the HIFU focal zone after exposure with 4.000 Wcm− 2(pr 8, 7 MPa) and (b) out of non HIFU exposed areas of the same lung. After HIFU exposure no damage of alveolar texture could be detected. Both samples show a mild lung emphysema which is characterized by enlarged air spaces (*) adjacent to normal alveoli (#). Arrows mark small vessels (→) and bronchi (⇨). Scale bar, 200 μm; magnification, x40