高场强磁共振EPI-FE-T_2WI序列在脑出血性病变的应用价值

Utility of high field intensity MR scans at EPI-FE-T2WI sequence in detecting intracranial hemorrhagic lesions

目的探讨EPI-FE-T2WI序列对脑出血性病变的应用价值。方法使用1.5T磁共振仪对2002年10月至2004年11月2a内2242例进行头部常规序列加做EPI-FE-T2WI序列扫描,共发现脑内出血性病变377例。结果在425例脑内出血性病变患者中,脑内血肿155例,微小脑内出血灶131例,肿瘤内出血37例,脑梗死灶内出血43例,蛛网膜下腔出血19例,放射性脑病合并出血4例,血管畸形18例,红斑狼疮性脑损害并出血1例,手术后出血12例,以及外伤性脑出血5例。结论EPI-FE-T2WI序列是检测各种脑内出血性病变的最佳序列。该序列可以用作头部扫描的常规序列,对于脑内出血性疾病的诊断、鉴别诊断及分期有重要的价值。

Objective To explore the utility of high field intensity MR scans at echo plannar imaging field echo T2WI （EPI-FE-T2WI） sequence in detecting intracranial hemorrhagic lesions. Methods Between October 2002 and November 2004, 425 patients with intracranial hemorrhagic lesions were found by high field intensity MR scans of the head at conventional scanning sequence and EPI-FE-T2WI sequence. Results Among 425 patients, intracephalic hemorrhage was found in 155 cases, micro-bleeding in 131, intratumoral hemorrhage in 37, intra-infarct foci hemorrhage in 43, subarachonid cavities hemorrhage in 19, post-radiotherapeutic hemorrhage associated with brain damage in 4, vascular malformation in 18, lupus erythematosus brain damage associated with hemorrhage in 1, postoperative bleeding in 12, and traumatic brain hemorrhage in 5. Conclusion EPI-FE-T2WI sequence is the most optimal means in detecting intracranial hemorrhagic lesions and it can make the definite diagnosis . diffctential diagnosis and staging so that it can be used as a routine sequence.