Objective:To investigate the value of CT and MRI diagnosis and application of ratio of adenoids/nasopharyngeal cavity(A/N ratio) for estimating degree of adenoids hypertrophy.

• 目的:探讨腺样体肥大的CT及MR诊断价值及腺样体-鼻咽腔比率(A/N比值)对判断腺样体肥大程度的应用。