| 林志超,罗良平,陈汉芳,黄力.FSEIR T1技术在脑部肿瘤诊断中的应用[J].中国医学影像技术,2003,19(9):0 |
| FSEIR T1技术在脑部肿瘤诊断中的应用 |
| MR FSEIR T1 Technique in Brain Tumor Diagnosis |
| 投稿时间：2003-04-09 |
| DOI： |
| 中文关键词: MRI FSEIR T1 脑肿瘤 |
| 英文关键词:MRI FSEIR T1 Brain tumor |
| 基金项目:广东省自然科学基金课题(010365);广东省医学科研课题(A2001333)。 |
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| 中文摘要: |
| 目的 探讨快速自旋回波反转恢复脉冲T1(FSEIR T1)技术在脑部肿瘤诊断中的作用。方法 40例脑部肿瘤患者行MR SE T1、FSE T2、FAIR及 FSEIR T1平扫,再行SE T1+C及FSEIR T1+C扫描。比较分析各扫描序列对脑部肿瘤的诊断价值。结果 与SE T1 相比,FSEIR T1序列的病灶检出率高(SE T1: 90%,FSEIR T1: 95%),代表图像质量的对比噪声比(CNR)和信号强度对比度(SIR)的值较SE T1高(CNR FSEIR T1=8.87±2.14, CNR SE T1=0.4±1.42, P<0.001; SIR FSEIR T1=1.45±0.006, SIR SE T1=1.02±0.004,P<0.001); 在增强T1加权序列中,SE T1+C与 FSEIR T1+C序列病灶检出率均为100%;增强FSEIR T1的CNR和SIR的值均较增强SE T1时为高(CNR FSEIR T1=71.38±16.30, CNR SE T1=59.97±7.87, P<0.001; SIR FSEIR T1=0.43±0.003, SIR SE T1=0.41±0.004, P=0.004)。结论 FSEIR T1是目前MR检查脑部肿瘤中较佳的T1加权技术,优于SE T1技术。 |
| 英文摘要: |
| Objective To explore the role of MR FSEIR T1 technique in brain tumor diagnosis. Methods Forty patients with brain tumor were examined with SE T1, FSE T2, FAIR, and FSEIR T1 MR scanning. The value of every scan technique in diagnosing brain tumor was compared. Results Compared with SE T1, the rate of lesions detection by FSEIR T1 sequence was higher than that of the SE T1 sequence (SE T1: 90%,FSEIR T1: 95%). Moreover, on FSEIR T1 images, the CNR and SIR which represented the quality of the image were higher than those on SE T1 images (CNR FSEIR T1=8.87±2.14, CNR SE T1=0.4±1.42, P<0.001; SIR FSEIR T1=1.45±0.006, SIR SE T1=1.02±0.004, P<0.001). In the post-contrast enhanced T1 sequence, both the rates of lesions detection by SE T1+C and FSEIR T1+C were 100%; the CNR and SIR were higher in FSEIR T1 than in SE T1 (CNR FSEIR T1=71.38±16.30, CNR SE T1=59.97±7.87, P<0.001; SIR FSEIR T1=0.43±0.003, SIR SE T1=0.41±0.004, P=0.004). Conclusion FSEIR T1 technique in the inspection of brain tumor was better than SE T1. |
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