软组织内非金属异物嵌入伤MRI检出及其临床价值

目的:探讨软组织内非金属异物嵌入伤MRI检出及其临床价值.方法:对6例患者分别行X线及MRI检查,对照分析MRI影像特征及手术结果.结果:6例患者X线检查均为阴性,MRI发现6处异物(6个)均经手术证实,异物发现率100％.6例异物于T1WI上呈略高信号,T2WI上呈等信号或稍低信号,STIR像上均呈低信号,其周围可见...

Clinical value of MR imaging for detection of the non-metal foreign bodies embedded in soft tissues

Objective：To explore the clinical value of MR imaging for detection of the non-metal foreign bodies embedded in soft tissues.Methods：The X-ray radiography and MR imaging were performed for six patients with suspicious foreign bodies in soft tissues.The MR imaging characteristics were analyzed in comparison to the surgical results.Results：The six patients were negative on the X-rays,while the MR imaging revealed one foreign body in each patient in this group,and the foreign body detection rate by MR imaging was 100%.The foreign bodies in the 6 cases showed slight hyperintensity on T1WI and iso-or slightly hypo-intensity on T2WI.All the foreign bodies showed hypointensity on STIR image with hyperintense changes around and surrounded by a hypointense ring,similar findings were detected on T2＊WI in one case with foreign body in the knee.Conclusion：MR imaging is an effective and reliable screening method to detect the non-metal foreign bodies embedded in soft tissues.And it can sensitively demonstrate the damage degree of adjacent structures clearly which provides useful evidence for clinical diagnosis and therapy.