...资讯网 003 《脊柱外科杂志》 2007年第5卷第5期 摘 要: 脊髓型颈椎病MRI脊髓局限性T2WI像高信号（Increased signal intensity，ISI）是指在颈髓病变部位及（或）相邻部位，MRIT2WI像出现一个有（或无）明显边缘的高密度区，有时可同时...
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并在掺杂铌酸锂晶体中获得了高信噪比，信号光增益高达1583倍的光像放大。
We obtain a optical image amplification with high gain factor of 1583 in doped lithium niobate crystals.
目的：报道被看作是空洞前状态的MRI T2加权像的髓内高损伤信号的可逆变化。
Objective. To report the reversible change of an intramedullary high-signal lesion on T2-weighted MRI as a presyrinx state.
图2。 病例3患者于T2像上见皮质脊髓束区高信号病灶。
Fig. 2 High signal intensity in the corticospinal tract on T2-weighted images of Case 3.
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