The accuracy for detecting increased hippocampal signal intensity with different MR pulse sequences was FLAIR sequence(88.9%), SE (77.8%), FSE (62.2%), and proton density sequence(43.3%), in decreasing order of frequency.

• SE序列质子密度加权像判别海马信号强度增加的准确度最差（43.；3%25）； FSE序列次之（62