摘要
目的探究3D⁃VANE⁃XD⁃mDixon序列在胸椎增强核磁共振成像(MRI)成像中对图像质量的影响及其应用价值。方法收集临床怀疑胸椎病变患者63例,行常规胸椎MRI后补充3D⁃T1WI⁃mDixon⁃TSE及3D⁃Vane⁃XD⁃mDixon序列。计算并测量两种扫描序列图像的椎体信噪比(SNR)、对比噪声比(CNR),并采用5分法对图像进行主观评分,比较两个序列对胸椎的诊断价值。结果在客观评分方面,3D⁃Vane⁃XD⁃mDixon序列图像与T1WI⁃mDixon⁃TSE序列图像的SNR分别为258.30(41.63,1982.67),133.05(18.90,584.34);CNR分别为114.67(22.32,740.17),23.44(6.44,224.77)。3D⁃Vane⁃XD⁃mDixon序列的SNR、CNR均高于T1WI⁃mDixon⁃TSE序列(Z=-4.042,P<0.001;Z=-4.107,P<0.001)。在主观评分方面,2名诊断医师对T1WI⁃mDixon⁃TSE和3D⁃Vane⁃XD⁃mDixon图像主观评分分别为3.03±0.53,3.09±0.47;4.17±0.50,3.96±0.69。3D⁃Vane⁃XD⁃mDixon序列(kappa=0.723)与T1WI⁃mDixon⁃TSE(kappa=0.685)的一致性均较好(kappa>0.61),具体表现为3D⁃Vane⁃XD⁃mDixon序列图像的整体质量评分明显优于T1WI⁃mDixon⁃TSE序列图像,且差异具有统计学意义(P<0.001)。结论使用3D⁃Vane⁃XD⁃mDixon序列,可明显提高胸椎增强图像质量,为疾病诊断提供精准的图像信息。
Objective To evaluate the application effect of 3D Vane⁃XD⁃mDixon sequence in thoracic spine enhanced MRI.Methods Sixty⁃three patients with suspected thoracic spine diseases are collected to scan 3D⁃T1WI⁃mDixon⁃TSE and 3D⁃Vane⁃XD⁃mDixon sequence after routine thoracic spine MRI.The SNR and CNR of thoracic spine were calculated and measured.The images were scored subjectively with 5⁃point method to compare the diagnostic value of the two sequences.Results In terms of objective evalution,the SNR of 3D⁃Vane⁃XD⁃mDixon and T1WI⁃mDixon⁃TSE sequences are 258.30(41.63,1982.67)and 133.05(18.90,584.34);CNR are 114.67(22.32,740.17)and 23.44(6.44,224.77).SNR and CNR of 3D⁃Vane⁃XD⁃mDixon sequence are higher than those of T1WI⁃mDixon⁃TSE sequence(Z=-4.042,P<0.001);(Z=-4.107,P<0.001).In terms of subjective evalution,T1WI⁃mDixon⁃TSE and 3D⁃Vane⁃XD⁃mDixon images subjective scores are 3.03±0.53,3.09±0.47;4.17±0.50,3.96±0.69,which are consistent between the 2 diagnosticians(kappa=0.723,0.685>0.61).Besides,the overall quality score of 3D⁃Vane⁃XD⁃mDixon image is significantly better than that of T1WI⁃mDixon⁃images,and the difference is statistically significant(P<0.001).Conclusion By using 3D⁃Vane⁃XD⁃mDixon sequence can obviously improve the quality of enhanced images of thoracic spine,and provide accurate images infor⁃mation for disease diagnosis.
作者
谢定祥
陈笑芳
张印宏
吴嘉乐
马慧
蔡华崧
张馨月
XIE Ding-xiang;CHEN Xiao-fang;ZHANG Yin-hong;WU Jia-le;MA Hui;CAI Hua-song;ZHANGXin-yue(Department of Radiology,the First Affiliated Hospital,Sun Yat-sen University,Guangzhou 510080,China)
出处
《岭南现代临床外科》
2023年第5期405-409,共5页
Lingnan Modern Clinics in Surgery
基金
国家自然科学基金青年基金(82202217)。
