对比正交鸟笼线圈与CTL脊柱线圈颅脑MR图像质量

目的 探讨正交鸟笼线圈与CTL脊柱线圈在颅脑扫描中的应用价值.方法 采用MRI所配备的正交鸟笼头线圈和CTL脊柱线圈对标准ACR水模行轴位T1FLAIR序列扫描,对每层图像的信噪比(SNR)及均匀度百分比(PIU)进行测量计算,并对其结果进行配对t检验.随机抽取使用头颅正交鸟笼线圈和CTL脊柱线圈进行颅脑检查的100例...

Comparison of image quality of brain between birdcage head coils and CTL spine coil

Objective To compare and analyze the difference of image quality between orthogonal cage coil and CTL spinal coil in craniocerebral scan,and to explore the application value of the two coils in craniocerebral examination.Methods 1)The orthogonal cage head coil and CTL spinal coil equipped with the MRI equipment(GE 1.5t HDe)were used to scan the axial T₁-FLAIR sequence of the standard ACR water model,and the SNR and PIU of each layer of images were measured and calculated,and the results were paired with t test;2)A total of 100 patients who underwent craniocerebral examination with quadrature cranial cage coil and CTL spinal coil were randomly selected,and their image SNR and image quality scores were compared and analyzed.Results 1)The SNR of CTL spinal coil was better than that of orthogonal cage coil.The PIU of orthogonal cage coil was better than that of CTL spinal coil,and the difference between the two groups was tatistically significant(P<0.05);2)There was no statistically significant difference in the overall image quality score,pseudo-film score,lesion detection and sequence score of the orthogonal cage coil and CTL spinal coil(P>0.05).Conclusion Both coils can be used for craniocerebral examination,but CTL spinal coils can obtain higher SNR images,which is more conducive to the diagnosis of clinical diseases.