INITIAL CLINICAL-EXPERIENCE IN MR-IMAGING OF THE BRAIN WITH A FAST FLUID-ATTENUATED INVERSION-RECOVERY PULSE SEQUENCE
INITIAL CLINICAL-EXPERIENCE IN MR-IMAGING OF THE BRAIN WITH A FAST FLUID-ATTENUATED INVERSION-RECOVERY PULSE SEQUENCE
复制标题
DOI：
10.1148/radiology.193.1.8090888
复制
发表时间：
1994-10-01
期刊：
影响因子：
19.7
通讯作者：
RIEDERER, SJ
中科院分区：
文献类型：
--
作者：
RYDBERG, JN;HAMMOND, CA;RIEDERER, SJ
目的评价快速液体衰减反转恢复（FLAIR）技术对脑异常成像的价值。材料和方法：快速FLAIR序列在5分8秒内提供36个5 mm连续切片。结果：对比度和对比噪声比（C/Ns）（病变与背景之间的对比度和病变与脑脊液之间的对比度）快速FLAIR超过了T2加权自旋回波图像的相应值，但第二回波病变与背景的C/N。快速FLAIR提供了等同或更高的整体病变清晰度，并分别在98%和100%的评价中实现了更高的病变检测。快速FLAIR图像更经常有图像伪影，但这并没有干扰图像解释中的显着（P小于或等于.05）更多的evaluations.CONCLUSION：快速FLAIR提供的图像上级质子密度和T2加权图像的许多图像质量标准。
PURPOSE To evaluate fast fluid-attenuated inversion-recovery (FLAIR) technique for imaging brain abnormalities.MATERIALS AND METHODS: A fast FLAIR sequence was developed that provided 36 5-mm contiguous sections in 5 minutes 8 seconds. Resulting images were compared with dual-echo T2-weighted spin-echo images of 41 consecutive patients with brain abnormalities.RESULTS: Contrast and contrast-to-noise ratios (C/Ns) (for contrast between the lesion and background and between the lesion and cerebrospinal fluid) for fast FLAIR exceeded the corresponding values for T2-weighted spin-echo images for all but the second-echo lesion-to-background C/N. Fast FLAIR provided equivalent or greater overall lesion conspicuity and enabled greater lesion detection in 98% and 100%, respectively, of the evaluations. Fast FLAIR images more often had image artifact, but this did not interfere with image interpretation in a significantly (P less than or equal to .05) greater number of evaluations.CONCLUSION: Fast FLAIR provides images that are superior to proton-density- and T2-weighted images for many image quality criteria.