摘要
目的:探讨Gd-DTPA增强MRI对孤立性肺结节的诊断价值.材料和方法:对29例孤立性肺结节行平扫和Gd-DTPA增强MR检查,Gd-DTPA按0.1mml/kg体重静脉内注射,观察不同性质结节的强化模式差异,测量增强前后信号强度变化.结果:恶性肿瘤明显强化,而良性肿瘤不强化或轻度强化,两者有显著差异(P<0.01).部分结核瘤表现为特征性的“周边薄层环状”强化.结论:良恶性结节间强化程度和模式有差异,增强MR对CT不能确诊的肺结节有重要鉴别诊断价值.
Purpose: Deducing Gd - DTPA - enhanced MRI diagnostic value of solitary pulmonary nod-ules.Material and Methods: Gadolium injection was administered intravenously at a dose of0. 1mml/kg in 29 paients with pulmonary masses.The enhancement styles and signal intensi-ties of the T1WI obtained before and after contrast medium injection were analysed. Result:Signal intensities of the malignant masses increased significantly(P < 0. 01 ) following contrastmaterial injection, while the benign ones showed slightly or no enhancement. But parts of tu-berculoma showed 'Thin - rim' enhancement, which was never found in malignant masses.Conclusion: Gd - DTPA - enhanced MR may be considered as significant differential diag-nostic value of thoracic masses.
出处
《中国医学计算机成像杂志》
CSCD
1996年第3期170-172,共3页
Chinese Computed Medical Imaging
