Figure 3 | Scientific Reports

Figure 3

From: Sirolimus-coated Eustachian tube balloon dilatation for treating Eustachian tube dysfunction in a rat model

Figure 3

Representative histological images of the ET treated with ETBD. (a) The changes in ET luminal area after ETBD with or without SRL-coated balloon over time in a rat ET model. The luminal area in the control group decreased owing to proliferative tissue caused by balloon dilation; however, the luminal area in the SRL group was adequately preserved. (b) Histological image of the normal ET and method of analysis of ET luminal area (c) The graph shows the percentage of ET luminal area in the study groups. ***p < 0.001.

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