(2) Except the head of malleus, superior and posterior semicircular canal, and cochlear aqueduct, other structures were manifested in different degrees on the above two planes.

• (2 )除锤骨头 ,上、后半规管及耳蜗导水管外 ,其余结构在横、冠状位上的显示优势均有不同程度的差异。