MR cistemography can precisely display the position and number ofdura leakage, and it has higher sensitivity than CTC especially to the dura leakage which size is smaller than 2mm.

• MRC可以确切显示硬脑膜裂口的位置和数目，并且其敏感性较高，特别是对于小于2mm的硬脑膜裂口的显示要优于CTC。