摘要目的 探讨不同影像学技术(DR、CT及MR)在儿童腺样体肥大诊断中的临床应用价值.方法 经临床确诊腺样体肥大儿童72例,50例使用DR摄常规鼻咽部侧位片,12例使用CT检查,10例使用磁共振成像扫描,通过测量腺样体-鼻咽腔比率(A/N比值),评估腺样体肥大情况.结果 DR、CT、MR均可获得鼻咽部软组织的清晰影像资料,通过测量A/N比值,可以评价鼻咽腔变窄程度.CT、MR可直接显示腺样体大小、形态及并发症.结论 使用DR摄鼻咽侧位片,患儿容易接受,是便捷、实用的测定儿童腺样体肥大的方法,对儿童腺样体肥大的诊断具有重要的临床价值.CT、MR测量儿童腺样体大小较DR更准确并且能显示并发症,有助于术前检查.其中MR具有无辐射、直接三维成像及软组织分辨率高的优点,在经济允许的情况下,是术前评估的首选影像学检查.

abstractsObjective To investigate the clinical value of different imaging technology [digital radiography (DR),computer tomography (CT) and magnetic resonance imaging (MRI)] in the diagnosis of children with adenoid hypertrophy.Methods 72 cases with adenoid hypertrophy were recruited.50 cases were examined by DR,12 cases were examined by CT examination,10 cases were examined by magnetic resonance imaging.The sizes of adenoid tonsils were estimated by adenoid-nasopharynx ratio(A / N)Results DR,CT and MRI can obtain clear images of nose pharynx ministry.The narrowed degree of nasopharynx lumen can be accurately evaluated by A/N.CT and MRI can directly display adenoid shape,size and complications.Conclusions DR of nose pharynx is a convenient and practical measuring for being easily accepted by children.DR has an important clinical value.CT and MRI are more accurate in measuring adenoid size and can display the complications to help preoperative examination.MR has no radiation,has high resolution of soft tissue and advantages of direct 3D imaging,and it's a first choice examination in preoperative.