【摘要】 目的 探讨MSCT及MRI检查在气管憩室(TD)诊疗中的临床价值。方法 选取5例TD患者的MSCT及MRI图像，比较两者图像特征。结果 所有病变均位于气管右后方(T1～T3水平),MSCT显示5例，显示囊腔与气管间通道1例，显示囊腔内分隔2例；MRI显示4例，显示憩室壁结构3例，显示囊腔内分隔1例，所有MRI图像比MSCT图像测得直径长。MRI图像感染性TD可见气管壁局部增厚、信号增高。结论 MSCT及MRI均有助于TD诊断，MSCT在显示较小的TD、囊腔与气管间通道、囊腔内分隔方面具有明显的优势。而MRI对TD壁的显示明显优于MSCT,且有助于判断颈部脓肿来源和累及情况，同时能动态观察感染性TD保守治疗的疗效情况，可作为评估TD手术治疗指征之一。更多还原

【Abstract】 Objective To compare the role of MSCT and MRI in the diagnosis and treatment of tracheal diverticulum(TD) and to determine the role of MRI in evaluating the efficacy of infectious TD. Methods MSCT and MRI images of 5 TD patients were collected and compared. Results All lesions were posterior to the right of the trachea(T1～T3), MSCT showed 5 cases, Cystic and tracheal passages were observed in 1 case, and intracapsular separation was seen in 2 cases; MR showed 4 cases, 3 cases of diverticulum wall structure were shown, and intracapsular separation was seen in 1 case. The diameter of all MRI images was longer than that of MSCT images. MRI images of infected TD showed local thickening of air duct wall and increased signal. Conclusion Both MSCT and MRI are helpful for TD diagnosis. In particular, thin-slice MSCT displays smaller TDs, diverticulum and tracheal passage, intra-capsular separation. MRI shows better TD wall than MSCT. It is helpful to diagnose the origin and involvement of neck abscess. Meanwhile, the efficacy of infectious TD can be dynamically observed, which can be used as one of the indications for evaluation of TD operation.更多还原