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脑出血患者CT影像学特征与MRI对比分析*

作者:许 欣 陈 亮

所属单位:陕西省汉中市中心医院医学影像诊断科(陕西 汉中 723000)

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摘要

目的对比分析脑出血患者CT与 MRI影像学特征。方法 回顾性分析2016 年5月至2017年10月在我院诊治的200例 脑出血患者术前CT与MRI检查资料,比 较CT与MRI影像特征,病灶部位与病灶 形态及其与病理检查结果的一致性。结 果 本研究共200例脑出血患者,MRI检 出壳核出血86.00%、脑叶出血94.54%、 丘脑出血92.00%,均高于CT检出率(脑 壳核出血64.00%、脑叶出血80.00%、丘 脑出血52.00%),差异有统计学意义(P <0.05),MRI可明确区分脑出血的时 期,超急性、急性、亚急性、慢性期脑 出血与残腔期信号特征各异,CT扫描可 对出血期、血肿吸收期、血肿完全吸收 期进行明确区分。结论 MRI在脑出血的诊 断敏感度优于CT扫描,二者均能明确脑 出血的时期。

Objective To compare and analyze the imaging features of CT and MRI in patients with cerebral hemorrhage. Methods The data of preoperative CT and MRI of 200 cases of patients with cerebral hemorrhage who were diagnosed and treated in our hospital from May 2016 to October 2017 were analyzed retrospectively. The CT and MRI imaging features, location, the consistency between lesion morphology results and pathological examination results were compared. Results Among 200 cases of patients with cerebral hemorrhage in this study, the detection rates of cerebral putamen hemorrhage, cerebral lobe hemorrhage and thalamus hemorrhage were 86.00%, 94.54%and 92.00% by MRI, which were higher than those by CT with 64.00%, 80.00% and 52.00% (P<0.05), and MRI could clearly reflect the the different periods of cerebral hemorrhage, and there were different signals characteristics in hyperacute, acute and subacute hemorrhage, chronic hemorrhage and stump periods, and CT scan can clearly distinguish the bleeding period, blood absorption period and complete blood absorption period. Conclusion The diagnostic sensitivity of MRI in intracerebral hemorrhage is better than that of CT scan, and both of them can identify the period of cerebral hemorrhage.

【关键词】脑出血;影像学特征;病灶部位;手术病理

【中图分类号】R445

【文献标识码】A

【DOI】10.3969/j.issn.1672-5131.2018.12.007

前言

脑出血是一种非外伤引起的脑实质内的自发性出血,与高血脂、 高血压、糖尿病、血管老化等因素密切相关,多于情绪激动或用力过 猛时突然发病[1]。脑出血急性期病死率达到30%-40%,具有发病率高、 病情凶险且发展迅速、病死率高等特点,因此,准确及时的诊断、治 疗是提高患者生存率的关键环节[2-3]。目前,脑出血的主要诊断方式为 CT、MRI等影像学技术。CT检查能够准确地检出患者出血部位、出血量 和特征,为医生的诊断和治疗方案提供参考[4]。近年来随着MRI技术的 迅猛发展和完善,其诊断价值受到越来越多的关注,相关文献指出, MRI影像技术在脑出血疾病的诊断上比CT更加敏感[5]。本研究通过分析 脑出血患者CT与MRI影像学特征,对比两种检测手段在脑出血诊断工作 中的实际价值,报告如下。