其基本原理是在自旋回波或梯度回波序列前附加一个180°反转脉冲,抑制在常规磁共振T2加权序列(T2-weighted image,T2WI)中表现为高信号的脑脊液,增加T2权重,突出病灶的显示.
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周围肺结节的磁共振成像评价 摘】本文对25个CT诊断困难的直径加权像(T2-Weighted image，T2 WI)上表现为高信号，且Gd-DTPA T1 WI呈显著增强(2个)。4十结核结节在T2 WI上表现为中等
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MRI T2-weighted image 腰椎间盘MRI
T2 weighted magnetic resonance image 后进行核磁共振成像
T2-weighted MR image T2加权MR图像
The sagittal fat-saturated T2-weighted image shows amputation of the great toewith increased signal intensity in the head of the first metatarsal indicatingosteomyelitis (white arrow).
白色箭头所指的部位是骨髓炎的表现。
Figure 2: T2-weighted axial image once again demonstrates a large, heterogeneous lesion located in the ethmoidal sinus (arrow). The lesion is predominately isointense to grey matter.
图2：T2序列轴位影像再次显示一个大的不均匀病变，位于筛窦（箭头）。病变的信号类似于灰质。
The technique of T2-weighted fast spin-echo fluid image was used in MRCP. ERCP and PTCwere performed in routine way.
MRCP采用重t 2加权及超快速自旋回波水成像技术进行，ERCP和PT C按常规方法进行。
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