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目的评价磁共振梯度回波T2成像(GRET2WI)诊断急性脑出血的意义。方法发病1～24h的21例急性脑出血患者在行CT检查后,行GRET2WI检查及常规MRI检查,比较其诊断价值。结果21例出血灶在GRET2WI均表现为边界清楚的极低信号,或表现为边界清楚的低信号环,内部为略高信号或低信号区内混杂小点、斑片状高信号,使脑出血病灶显示非常清楚。6例在基底节区,同侧或对侧丘脑发现有1～7个直径2～5mm的圆形、斑点状的极低信号,为GRET2WI检测出的脑微出血。结论应用GRET2WI技术可以早期准确地诊断脑出血,可以全面了解患者颅内损害情况。
Objective To evaluate the significance of magnetic resonance gradient echo T2 imaging (GRET2WI) in diagnosis of acute cerebral hemorrhage. Methods 21 cases of acute cerebral hemorrhage from 1 to 24 hours after onset were examined by GRET2WI and conventional MRI after CT examination. The diagnostic value was compared. Results Twenty-one hemorrhagic lesions showed a very low signal at GRET2WI or a low signal circle with clear boundary. The internal lesion was slightly high or low in signal area, The lesions show very clearly. In the basal ganglia, ipsilateral or contralateral thalamus, there were 1 to 7 round, spotted, very low signals of 2 to 5 mm in diameter in the basal ganglia, which were brain microbleeds detected by GRET2WI. Conclusion GRET2WI can diagnose cerebral hemorrhage accurately and accurately in early stage, and can fully understand the intracranial lesions in patients.