摘要
目的评价MRI对煤工尘肺进行性块状纤维化(PMF)病灶各种征象的显示能力及诊断价值。方法对已确诊的21例煤工尘肺进行PMF(29个病灶)进行CT及MRI扫描,对照分析病灶征象包括肿块部位、形态、大小、边缘特征、内部结构以及邻近胸膜改变等,比较二者对PMF病灶的检出及显示能力。结果 MRI对显示煤工尘肺PMF病灶部位、形态、大小、肿块内部结构及邻近胸膜改变的显示能力与CT比较无明显统计学差异(P>0.05)。CT对显示病灶边缘微细特征及病灶钙化方面优于MRI。病变在MRI T2WI及频谱预饱和反转恢复(SPIR)序列表现为等低不均匀信号,即在等低信号的病灶内可见到斑条状更低信号,具有一定影像特征。结论 MRI可以较好地显示煤工尘肺PMF病灶的大部分征象,病灶信号改变具有特征性,可作为影像学检查的一种有效补充手段,同时对与肺肿瘤的鉴别诊断具有一定帮助。
Objective To evaluate the display ability and the diagnostic value of various kinds of signs of coal workers ＇progressive massive fibrosis lesions with MRI by comparing with conventional CT. Methods We scanned 21 confirmed cases（29 lesions） of coal workers＇progressive massive fibrosis with CT and MRI, through comparison and analysis of focal signs include tumor position, shape, size, edge character, internal structure and the change of adjacent pleura. Results Comparing with CT, the display ability to demonstrate the signs of coal workers＇ pneumoconiosis progressive massive fibrosis including focal position, shape, size, internal structure and lump adjacent pleural change has no significant statistical difference （P 〉 0.05）. The ability of CT to display edge details and the focal calcification excels MRI. In the T2WI and SPIR phase showed equality or low inhomogeneous signal, spot and strip lower signal can be seen in the low signal lesion, which is the significant characteristic. Conclusion MRI can display well most signs of progressive massive fibrosis lesions of coal workers＇ pneumoconiosis. There are characteristic appearances on lesions signal. It can be used to supplement the imaging examination as an effective way and is also certain help to the differentiate diagnosis of lung cancer.
出处
《临床放射学杂志》
CSCD
北大核心
2015年第11期1748-1751,共4页
Journal of Clinical Radiology
关键词
尘肺
进行性块状纤维化
磁共振成像
体层摄影术
Pneumoconiosis Progressive massive fibrosis Magnetic resonance imaging Tomography
