Sargent M A, Poskitt K J
Department of Radiology, British Columbia's Children's Hospital, 4480 Oak Street, Vancouver, BC V6H 3V4, Canada.
Pediatr Radiol. 1997 Jun;27(6):545-9. doi: 10.1007/s002470050177.
To evaluate fast spin-echo and multi-shot echo-planar fluid-attenuated inversion recovery (FLAIR) sequences in paediatric brain imaging.
Matched images from 32 patients with suspected tumour or white matter disease were independently evaluated by two paediatric neuroradiologists. The observer preferences for image quality and lesion detection were analysed for differences between fast spin-echo FLAIR and multi-shot echo-planar FLAIR. Diagnostic quality was compared with that of fast spin-echo T2-weighted images.
Images of a diagnostic quality equivalent to that of fast spin-echo T2-weighted images were achieved with both FLAIR techniques. Grey and white matter differentiation and cerebrospinal fluid (CSF) nulling were significantly better on fast spin-echo FLAIR sequences. CSF flow artefact was reduced on multi-shot echo-planar FLAIR. There was no difference in lesion detection. Fast spin-echo FLAIR images were visually preferred at the expense of longer imaging time.
Fast FLAIR techniques are complementary to fast spin-echo T2-weighted sequences in imaging of the paediatric brain. We find that the fast spin-echo FLAIR sequence is preferable to the multi-shot echo-planar technique.
评估快速自旋回波和多次激发回波平面液体衰减反转恢复（FLAIR）序列在儿科脑成像中的应用。
32例疑似肿瘤或白质疾病患者的配对图像由两位儿科神经放射科医生独立评估。分析观察者对图像质量和病变检测的偏好，以比较快速自旋回波FLAIR和多次激发回波平面FLAIR之间的差异。将诊断质量与快速自旋回波T2加权图像的诊断质量进行比较。
两种FLAIR技术均获得了与快速自旋回波T2加权图像相当的诊断质量图像。在快速自旋回波FLAIR序列上，灰质和白质的区分以及脑脊液（CSF）抑制明显更好。多次激发回波平面FLAIR减少了脑脊液流动伪影。病变检测方面无差异。快速自旋回波FLAIR图像在视觉上更受青睐，但成像时间较长。
快速FLAIR技术在儿科脑成像中是快速自旋回波T2加权序列的补充。我们发现快速自旋回波FLAIR序列优于多次激发回波平面技术。
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