T_2-tirm序列观察急性椎体外伤价值研究

TheevaluationofT2-tirmsequence inthediagnosisofacutetrauma inver- tebralbodies

目的 研究应用T2-tirm序列观察急性椎体外伤的价值。方法 对76份急性脊柱外伤患者资料均加扫了T2-tirm序列 ,分析比较该序列和常规T2 序列 ,发现急性外伤椎体异常信号的能力。对观察结果进行统计学处理。结果 T2-tirm序列共检出191个信号异常的外伤椎体 ,其中有形态改变的椎体61个。常规T2 序列检出158个 ,其中椎体形态有改变的61个 ,经统计学分析 ,两种序列在观察急性外伤区域无形态改变的椎体时 ,其异常信号的检出率差异具有统计学意义 (p<0.05)。结论 T2-tirm序列发现无形态改变的急性外伤椎体异常信号的能力优于常规T2 序列 ,在临床应用中可作为常规序列的补充。

Objective To evaluate the value of T 2 -tirm sequence in th e diagnosis of acute trauma in vertebral bodies. Methods Compared the rate of detecting abnormal signal in suspected traumatic vertebral bodies in the images of T 2 -tirm sequence with convention T2W sequence,We colˉlected76inpatient of acute trauma in spine and their corresponding images as study group. Results In the images of T 2 -tirm sequence,we discovered191vertebral bodies with abnormal signal were regarded as the result of acute trauma.At the same time,158vertebral bodies with abnormal signal were found in the images of convention T2W sequence.There were61traumatic vertebral bodies which had morphologic change in both the images of T 2 -tirm sequence and convention T 2 W sequence.There was significant difference between T 2 -tirm sequence and convention T 2 W sequence on the rate of detecting the vertebral bodies with abnormal signal and normal size(p<0.05). Conclusion T 2 -tirm sequence was superior to convention T 2 W sequence for the diagnosis of acute trauma in the vertebral bodies without morphologic change.Combined with convention T1W and T2W sequence may be helpful as a complementary sequence in the process of viewing acute trauma of spine.