磁共振磁敏感加权成像在轻型颅脑外伤的诊断及应用效果评价
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磁共振磁敏感加权成像在轻型颅脑外伤的诊断及应用效果评价
摘要目的評价磁共振磁敏感加权成像(SWI)在轻型颅脑外伤的诊断及应用效果。方法选择46例轻型颅脑外伤患者,所有患者均先后行头颅CT检查、SWI检查,分析CT检查、SWI检查对患者的检出符合率及挫裂伤灶检出率。结果SWI检查对轻型颅脑外伤患者的检出符合率97.83%明显高于CT检查的86.96%,差异具有统计学意义(P<0.05)。20~30岁组、30~40岁组和40~50岁组的SWI检查的检出率分别为100.00%(18/18)、100.00%(15/15)、92.31%(12/13)。20~30岁组、30~40岁组和40~50岁
组的CT检查的检出率分别为94.44%(17/18)、86.67%(13/15)、76.92%(10/12)。SWI检查对患者挫裂伤灶检出率96.00%明显高于CT检查的80.00%,差异具有统计学意义(P<0.05)。结论SWI诊断能够有效判别轻型颅脑外伤患者疾病情况,该诊断方式的检出符合率明显较高,值得应用推广。
关键词磁共振磁敏感加权成像;轻型颅脑外伤;诊断;应用效果
Evaluation of effect of magnetic resonance susceptibility weighted imaging in diagnosis and application of mild craniocerebral trauma ZENG Hai-yong,ZHOU Cui-ping,HE Guo-hua,et al. Department of Neurosurgery,Huizhou Central People’s Hospital,Huizhou 516001,China
【Abstract】Objective To evaluate the effect of magnetic resonance susceptibility weighted imaging (SWI)in diagnosis and application of mild craniocerebral trauma. Methods A total of 46 patients with mild craniocerebral trauma all received head CT examination and SWI examination. The detection coincidence rate and detection rate of contusion lesions of CT examination and SWI examination were analyzed. Results The detection coincidence rate of SWI examination for mild craniocerebral trauma patients was 97.83%,which was significantly higher than 86.96% of CT examination,and the difference was statistically significant (P<0.05). The detection rates of SWI examination in 20~30 year-old group,30~40 year-old group and 40~50 year-old group were 100.00% (18/18),100.00% (15/15)and 92.31% (12/13)respectively. The detection rates of CT examination in 20~30 year-old group,30~40 years group and 40~50 years-old group were 94.44% (17/18),86.67% (13/15)and 76.92% (10/12)respectively. There was significant difference in the detection rate of SWI examination and CT examination between 20~30 year-old group,30~40 year-old group and 40~50 year-old group (P<0.05). The detection rate of SWI examination for patients with contusion lesions was 96.00%,which was significantly higher than 80.00% CT examination,and the difference was statistically significant (P<0.05). Conclusion SWI examination can effectively identify the condition of patients with mild craniocerebral trauma. The coincidence rate of this diagnostic method is obviously higher,and it is worthy of application and promotion.
【Key words】Magnetic resonance susceptibility weighted imaging;Mild craniocerebral trauma;Diagnosis;Application effect轻型颅脑损伤属于神经外科疾病,该病症的发生率极高,据数据调查发现,在神经外科疾病的发生率中轻型颅脑损伤居于首位。轻型颅脑损伤会引发患者发生神经系统、精神等方面临床表现,如头痛、昏迷等,因此,轻型颅脑损伤的致残率也相对较高。本文研究意图在于评价SWI在轻型颅脑外伤的诊断及应用效果。现报告如下。
1 资料与方法
1. 1 一般资料选择本院2015年1月~2017年1月收治的轻型颅脑外伤患者46例作为此次研究对象。患者中,男26例,女20例;受伤原因:交通事故伤17例、跌伤15例、打击伤14例;临床症状提示有脑挫裂伤,挫裂伤灶共计50个;
患者均出现烦躁不安、呕吐和暂时性昏迷等主要临床症状;患者均明白研究意图,自愿签订此次研究的知情同意书。按照患者年龄分为20~30岁组(18例)、30~40岁组(15例)、40~50岁组(13例)。
1. 2 方法所有患者均先后行头颅CT检查、SWI检查。
1. 2. 1 头颅CT检查使用美国GE公司提供的螺旋CT机进行常规颅脑CT 扫描,设置轴扫模式,听眦线视为扫描基线;扫描参数设置如下:管电压120 kV、管电流180 mA、层厚
5 mm、层间距5 mm、重建薄层层厚2.5 mm、重建薄层层间距10 mm、重建薄层5 mm/5 mm。
1. 2. 2 SWI检查患者取得仰卧位,头颈部垫海绵,以此固定头部位置,叮嘱患者尽量减少脑部思维活动;让患者身体与床面长轴相一致,在头部放置于头托内,使得头部创面与眶耳线相垂直,将矢状位的扫描光标于患者面部中线上;使用三维扰相完全速度以对梯度回波序列予以补偿,并对图像进行分析,建立脑部血管图像,待确定没有脑内异物之后,查看病灶具体位置;记录病灶部位、形态、特点等情况。
1. 3 观察指标分析CT检查、SWI检查对患者的检出符合率及挫裂伤灶检出率。
1. 4 统计学方法采用SPSS21.0统计学软件对数据进行处理。计数资料以率(%)表示,采用χ2检验。P<0.05表示差异有统计学意义。
2 结果
2. 1 CT检查与SWI检查对轻型颅脑外伤患者的检出符合情况比较SWI检