CAJ | 학술논문

目的：探讨3.0T MR 扩散加权成像(DWI)特征表现在颅脑疾病中的应用价值。方法本文回顾性分析应用 DWI 特征表现(脂肪抑制效应、T2暗化效应、T2穿透效应、T2廓清效应)诊断出的颅脑疾病患者120例，全部行常规 MRI 扫描，包括平面回波扩散加权成像(EPI-DWI)和表观扩散系数(ADC)图。结果利用脂肪抑制效应，诊断脂肪瘤15例，非脂肪成分病灶8例；利用T2暗化效应诊断急性期脑血肿13例，出血性脑梗死11例，易漏诊的微出血或小的海绵状血管瘤16例；利用 T2穿透效应诊断表皮样囊肿15例，脉络丛囊肿5例；利用 T2廓清效应助诊脑后部可逆性脑病综合征15例，脑肿瘤22例。结论全面广泛地运用 DWI特征表现有助于颅脑疾病的诊断。
목적：탐토3.0T MR 확산가권성상(DWI)특정표현재로뇌질병중적응용개치。방법본문회고성분석응용 DWI 특정표현(지방억제효응、T2암화효응、T2천투효응、T2곽청효응)진단출적로뇌질병환자120례，전부행상규 MRI 소묘，포괄평면회파확산가권성상(EPI-DWI)화표관확산계수(ADC)도。결과이용지방억제효응，진단지방류15례，비지방성분병조8례；이용T2암화효응진단급성기뇌혈종13례，출혈성뇌경사11례，역루진적미출혈혹소적해면상혈관류16례；이용 T2천투효응진단표피양낭종15례，맥락총낭종5례；이용 T2곽청효응조진뇌후부가역성뇌병종합정15례，뇌종류22례。결론전면엄범지운용 DWI특정표현유조우로뇌질병적진단。
Objective To explore the value of characteristic manifestation of diffusion-weighted images at 3.0T MR system in cer-ebral disease.Methods 120 patients with cerebral disease diagnosed by MR diffusion-weighted images (fat suppression effect,T2 blackout effect,T2 shine-through effect,T2 washout effect)underwent routine MR scan,including echo planar imaging-diffusion weighted imaging (EPI-DWI)and apparent diffusion coefficient (ADC)map,whose characteristic manifestations of DWI were retro-spectively analyzed.Results 1 5 cases of lipoma and 8 cases without fat lesions were diagnosed with fat suppression effect.13 cases of acute cerebral hematoma,1 1 cases of hemorrhagic cerebral infarction and 1 6 cases of micro bleeding of missed diagnosis or small cavernous hemangioma were diagnosed with T2 blackout effect.1 5 cases of epidermoid cyst,5 cases of choroid plexus cyst were di-agnosed with T2 shine-through effect.1 5 cases of posterior reversible encephalopathy syndrome and 22 cases of brain tumor were di-agnosed with T2 washout effect.Conclusion Comprehensive use of the characteristic manifestation of EPI-DWI and ADC map can help the diagnosis of cerebral disease.