Using pure tone audiometry and ABR, in addition to CT, we can clinically assess the hearing status and the development of external and middle ear, thus guiding the clinician in handling with difficult surgery.

• 对先天性外、中耳畸形患者术前进行纯音测听、ABR检查,并结合临床和颞骨CT检查,可初步评估外耳、中耳发育程度,进而指导手术治疗。