CAJ | 학술논문

目的：探讨磁共振成像(MRI)、扩散加权成像(DWI)、磁共振灌注成像(PWI)、磁共振波谱成像(MRS)在原发性颅内淋巴瘤诊断及鉴别诊断中的应用价值。方法回顾性分析27例原发性颅内淋巴瘤患者的 MRI、DWI、PWI、MRS 影像资料。结果所有病灶 T1 WI 呈低-等信号,T2 WI 呈等、稍高、高信号,DWI 呈稍高、高信号。增强扫描22例病灶呈明显均匀强化,5例病灶呈不均匀强化。19例病灶可见“蝶翼征”“握拳征”“缺口征”“尖角征”。18例病灶均为低灌注表现。MRS 表现为病灶实质区 NAA 峰明显降低或消失,Cho 峰增高,23例出现高大 Lip 峰,12例出现 Lac 峰。结论磁共振常规及其功能成像在原发性颅内淋巴瘤的诊断及鉴别诊断中具有很高的应用价值,低灌注、肿瘤实质区出现高耸的 Lip 峰是原发性颅内淋巴瘤的特征性表现。
목적：탐토자공진성상(MRI)、확산가권성상(DWI)、자공진관주성상(PWI)、자공진파보성상(MRS)재원발성로내림파류진단급감별진단중적응용개치。방법회고성분석27례원발성로내림파류환자적 MRI、DWI、PWI、MRS 영상자료。결과소유병조 T1 WI 정저-등신호,T2 WI 정등、초고、고신호,DWI 정초고、고신호。증강소묘22례병조정명현균균강화,5례병조정불균균강화。19례병조가견“접익정”“악권정”“결구정”“첨각정”。18례병조균위저관주표현。MRS 표현위병조실질구 NAA 봉명현강저혹소실,Cho 봉증고,23례출현고대 Lip 봉,12례출현 Lac 봉。결론자공진상규급기공능성상재원발성로내림파류적진단급감별진단중구유흔고적응용개치,저관주、종류실질구출현고용적 Lip 봉시원발성로내림파류적특정성표현。
Objective To explore the application value of routine magnetic resonance imaging (MRI),diffusion-weighted imaging (DWI),perfusion-weighted imaging (PWI)and magnetic resonance spectroscopic imaging (MRS)in the diagnosis and differential diagnosis of primary intracranial lymphoma.Methods The MRI,DWI,PWI and MRS data of 27 patients with primary intracranial lymphoma were retrospectively analyzed.Results All T1 WI images showed low to equal intensity;T2 WI images showed equal,a little high or high intensity;DWI showed a little high or high intensity.Enhancement scanning showed significant homogeneous en-hancement in 22 cases and heterogeneous enhancement in 5 cases.The “butterfly sign”“fisting sign”,“gap sign”and “pointed sign”were observed in 1 9 cases.The lesions of 18 cases were manifested as hypoperfusion.MRS showed significantly decreased or disap-peared NAA peak and risen CHO peak in the parenchyma lesions with towering Lip peaks showed in 23 cases and Lac peaks presen-ted 12 cases.Conclusion There is high application value of routine and functional MRI in diagnosis and differential diagnosis of pri-mary intracranial lymphoma,whose characteristic performances is hypoperfusion and towering Lip peaks in the parenchyma lesions.