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目的分析核磁共振成像(MRI)与CT对急性颅脑损伤诊断的临床应用价值。方法 98例急性颅脑损伤患者,在受伤3 d内均接受CT与MRI检查,观察记录两种方法确诊率与漏诊率,对比特殊部位检出率。结果 MRI与CT在硬膜外血肿、硬膜下血肿与颅骨骨折的诊断上比较差异无统计学意义(P>0.05);在蛛网膜下腔出血的诊断上,CT的敏感度高于MRI,而在脑叶挫裂伤与脑深部挫伤的诊断上,MRI较CT更为敏感,差异具有统计学意义(P<0.05)。MRI的特殊部位检出率明显高于CT(P<0.05)。CT与MRI的敏感度分别为75.5%、85.7%,比较差异具有统计学意义(P<0.05)。结论 MRI比CT有更为明显的诊断效果,CT对脑干、小脑、颞叶边缘部位的损伤并不敏感,临床可据实际需要灵活选择。
Objective To analyze the clinical value of magnetic resonance imaging (MRI) and CT in the diagnosis of acute craniocerebral injury. Methods A total of 98 patients with acute craniocerebral injury underwent CT and MRI examinations within 3 days of injury. The diagnosis and missed diagnosis rates of the two methods were recorded and compared, and the detection rate of special sites was compared. Results There was no significant difference in the diagnosis of epidural hematoma, subdural hematoma and skull fracture between MRI and CT (P> 0.05). In the diagnosis of subarachnoid hemorrhage, the sensitivity of CT was higher than that of MRI, In the diagnosis of cerebral contusion and laceration of the brain contusion, MRI is more sensitive than CT, the difference was statistically significant (P <0.05). The detection rate of special parts of MRI was significantly higher than that of CT (P <0.05). The sensitivity of CT and MRI were 75.5% and 85.7%, respectively, with significant difference (P <0.05). Conclusion MRI has more obvious diagnostic value than CT. CT is not sensitive to the injury of the brainstem, cerebellum and temporal lobe. The clinical choice can be flexibly selected according to the actual needs.