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目的观察不同核磁共振成像(MRI)方式对急性颅脑损伤诊断中的应用,探讨有效诊断急性颅脑损伤的MRI方式。方法对80例患者进行MRI检查,观察T1WI、T2WI和DWI 3种不同成像方式对急性颅脑损伤的检出结果。结果80例患者中,T1WI检出患者颅脑缺血性病灶32个,检出率为26.9%;T2WI检出患者颅脑缺血性病灶39个,检出率为32.8%;DWI检出患者颅脑缺血性病灶48个,检出率为40.3%。3者比较差异均有统计学意义(χ2=30.11,P<0.01)。T1WI检出患者颅脑出血性病灶61个,检出率为23.8%。T2WI检出患者颅脑出血性病灶121个,检出率为47.3%。DWI检出患者颅脑出血性病灶74个,检出率为28.9%。3者比较差异均有统计学意义(χ2=50.33,P<0.01)。结论不同的MRI成像方式对急性颅脑损伤检出存在统计学差异,DWI对缺血性颅脑损伤分辨率高,而T2WI对出血性颅脑损伤分辨率高,MRI成像在急性颅脑损伤的临床诊断上具有很好的应用价值。
Objective To observe the application of different magnetic resonance imaging (MRI) modalities in the diagnosis of acute craniocerebral injury and to explore the MRI modality for the effective diagnosis of acute craniocerebral injury. Methods Totally 80 patients were examined by MRI. The results of T1WI, T2WI and DWI imaging in acute craniocerebral injury were observed. Results Among the 80 patients, 32 patients with cerebral ischemic lesions were detected by T1WI, the detection rate was 26.9%; 39 patients with cerebral ischemic lesions were detected by T2WI, the detection rate was 32.8%; DWI detected patients 48 cerebral ischemic lesions, the detection rate was 40.3%. 3 were statistically significant differences (χ2 = 30.11, P <0.01). T1WI detected 61 patients with cerebral hemorrhagic lesions, the detection rate was 23.8%. 121 patients with cerebral hemorrhagic lesions were detected by T2WI, the detection rate was 47.3%. Among 74 patients with cerebral hemorrhagic lesions detected by DWI, the detection rate was 28.9%. 3 were statistically significant differences (χ2 = 50.33, P <0.01). Conclusions Different MRI imaging modalities can detect acute craniocerebral injury statistically. DWI has high resolution of ischemic craniocerebral injury, while T2WI has high resolving power of hemorrhagic craniocerebral injury. MRI is more effective in acute craniocerebral injury Clinical diagnosis has a very good value.