急性脑外伤患者MRI与CT检查对比分析

Comparative Analysis of MRI and CT Examinations for Patients with Acute Brain Injury

目的对比MRI(磁共振成像)与CT检查技术诊断急性脑外伤的影像特征与诊断价值(准确率)。方法选择2019年1月-2022年11月盐城市大丰人民医院收诊治疗的急性脑外伤患者100例作为研究对象,首先进行急诊CT检查,后续再行MRI复查,以手术诊疗结果和定期复查为金标准,分别计算两种检查技术诊断急性脑外伤病变的准确率,同时总结不同类型急性脑外伤患者MRI与CT影像各期具体表现。另外,因急性脑外伤影像表现复杂,常合并多种类型颅脑损伤,故本次研究所搜集病例多为复合型损伤病例。结果100例急性脑外伤患者通过定期复查或手术诊疗显示,其中80例包含脑挫裂伤,50例包含硬膜下(外)血肿,20例包含脑实质内血肿,60例包含蛛网膜下腔出血。另外,本次搜集病例中,有40例脑外伤患者并发颅骨骨折。因MRI对骨性结构敏感度欠佳,本次研究病例颅骨骨折全部由CT检出。根据实验结果得出结论:在脑挫裂伤、硬膜下(外)血肿、脑实质内血肿、蛛网膜下腔出血方面,MRI检查准确率均明显高于CT(P<0.05)。但是在超急性期蛛网膜下腔出血、颅骨骨折方面,CT具有明显优势。结论临床诊断急性脑外伤疾病首选CT检查,再行MRI检查,二者互相结合、补充,能够提高诊断准确率,且影像表现更加丰富,为临床提供可靠支持,提倡运用推广。

Objective To compared imaging characteristics and diagnostic value(accuracy)of MRI(magnetic resonance imaging)and CT examination techniques in diagnosis of acute brain injury.Methods The paper chose 100 patients with acute brain injury admitted to Yancheng City Dafeng People's Hospital from January 2019 to November 2022 as research objects.First,emergency CT examination was performed,followed by MRI re examination.With gold standard of surgical diagnosis and treatment and regular re-examination,accuracy of two examination techniques in diagnosing acute brain injury lesions was calculated and specific manifestations of MRI and CT images of different types of acute brain injury patients in each stage were summarized.(Due to complex imaging manifestations of acute brain injury and frequent occurrence of multiple types of brain injuries,most of the cases collected in study were composite injury cases.)Results Among 100 patients with acute brain injury,regular follow-up or surgical diagnosis and treatment showed,80 cases had brain contusion and laceration and 50 cases had subdural(epidural)hematoma,20 cases had intracerebral hematoma and 60 cases had subarachnoid hemorrhage.In addition,there were 40 cases of brain injury patients complicated with skull fractures.Due to poor sensitivity of MRI to bone structures,all skull fractures in study were detected by CT.Based on experimental results,it could be concluded that accuracy of MRI examination was significantly higher than CT in terms of brain contusion and laceration,subdural(extradural)hematoma,intracerebral hematoma and subarachnoid hemorrhage(P<0.05).However,CT had significant advantage for hyperacute subarachnoid hemorrhage and skull fractures.Conclusion CT examination is the first choice for clinical diagnosis of acute brain injury disease,followed by MRI examination.Combination and supplementation of two can improve diagnostic accuracy with diversified imaging manifestations,which can provide reliable support for clinical practice,and is worthy of application and promotion.