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目的研究颅部硬膜外血肿MRI的特点和应用价值。方法选择2013年2月—2015年2月收治的60例硬膜外血肿患者的MRI资料进行回顾性分析,所有患者均行低场MRI(多序列)扫描。结果常规MRI扫描中T1WI多数呈现等信号,T2WI为较高信号或者混合信号。硬膜外血肿形状表现为类圆形30个(46.9%),弯月形19个(29.7%),不规则形15个(23.4%)。FLAIR呈现高信号50个(78.1%)、低信号14个(21.9%);在DWI中呈现为高信号和弥散受限。硬膜外血肿周围存在水肿带,T1WI表现为低信号,T2WI表现为高信号。结论低场MRI扫描合理选择序列能够准确把握硬膜外血肿的情况,收录的信息量高,可指导临床诊断和治疗。
Objective To study the characteristics and application value of MRI in craniocerebral hematoma. Methods MRI data of 60 patients with epidural hematomas who were treated in our hospital from February 2013 to February 2015 were retrospectively analyzed. All patients underwent low field MRI (multiple sequence) scan. Results T1WI in most conventional MRI scans showed equal signal and T2WI was higher signal or mixed signal. The shape of epidural hematoma showed round type 30 (46.9%), meniscus 19 (29.7%), and irregular shape 15 (23.4%). FLAIR showed 50 high signals (78.1%) and 14 low signals (21.9%), showing high signal and limited diffusion in DWI. Edema around the epidural hematoma zone exists, T1WI showed low signal, T2WI showed high signal. Conclusion Low-field MRI scanning reasonable selection sequence can accurately grasp the situation of epidural hematoma, the information collected is high, can guide the clinical diagnosis and treatment.