探讨磁共振磁敏感加权成像(SWI)对脑膜、脑转移瘤的诊断价值

doi:10.3969/j.issn.1000-8535.2019.03.013

广州医药 ›› 2019, Vol. 50 ›› Issue (3): 48-51.DOI: 10.3969/j.issn.1000-8535.2019.03.013

探讨磁共振磁敏感加权成像(SWI)对脑膜、脑转移瘤的诊断价值

蔡伟琳, 刘祥治, 陈仲良, 邱创嘉, 张晓勇

潮州市人民医院放射科(潮州 521011)

收稿日期:2018-12-19 出版日期:2019-05-20 发布日期:2021-12-17
基金资助:
潮州市卫生和计划生育局科研项目(2017068);潮州市科技计划项目(2017GY31)

Diagnostic value of susceptibility-weighted imaging (SWI) in meningiomas and brain metastases

CAI Weilin, LIU Xiangzhi, CHEN Zhongliang, QIU Chuangjia, ZHANG Xiaoyong

Radiology Department, Chaozhou People's Hospital, Chaozhou 521011, China

Received:2018-12-19 Online:2019-05-20 Published:2021-12-17

摘要/Abstract

摘要： 目的探讨磁共振磁敏感加权成像(SWI)对脑膜、脑转移瘤的诊断价值。方法随机选取2016年3月—2018年3月我院收治的经临床、病理确诊的50例脑膜、脑转移瘤患者为研究对象,所有患者除常规行T1WI、T2WI扫描及T1WI增强扫描检查外,额外进行SWI检查。观察不同来源脑转移瘤转移部位、肿瘤实质信号在不同成像序列上的特征及对瘤内血管情况和出血状况的判断。结果脑转移瘤的发生部位多为顶叶(29.75%)和枕叶(20.66%),就血供区域而言,多发生于中动脉(45.45%)和颈内动脉供血区域(38.02%)。不同MRI成像序列中肿瘤信号特征比较,显示均有差异(P<0.001)。其中,肺癌脑转移瘤T1WI呈低信号(62.96%),胃癌T2WI呈现高信号(68.75%),SWI成像序列上多显示为混杂信号。SWI序列成像显示瘤内出血55例(45.45%),显示引流血管16条,瘤内出血及肿瘤血管检出率均明显高于T1WI平扫检查,差异有统计学意义(P<0.05)。结论不同来源的脑转移瘤MR的表现不同,为逆向推测脑转移瘤来源提供依据,同时SWI是对常规序列的重要补充,尤其是在脑瘤出血和血管检出上有重要作用,值得临床推广使用。

关键词: 磁共振磁敏感加权成像(SWI), 脑转移瘤, 磁共振成像, 增强扫描

Abstract: Objective To investigate the diagnostic value of susceptibility-weighted imaging(SWI) in meningiomas and brain metastases. Methods 50 cases of clinically and pathologically confirmed patients with meningioma and brain metastasis admitted to our hospital from March 2016 to March 2018 were randomly selected as the study subjects. All patients received routine T1WI, T2WI scan and T1WI enhanced scan, and additional SWI examination was performed. We observed the characteristics of metastatic sites and tumor parenchymal signals in different imaging sequences of brain metastatic tumors from different sources and to judge the status of intramedullary blood vessels and bleeding. Results The majority of brain metastatic tumors occurred in the parietal lobe (29.75%) and occipital lobe (20.66%). In terms of the blood supply region, the majority occurred in the middle artery (45.45%) and the blood supply region of the lower artery (38.02%). Comparison of tumor signal characteristics in different MRI imaging sequences showed differences, P<0.001. Among them, T1WI of brain metastatic tumor of lung cancer presented significantly low signal (62.96%), T2WI of gastric cancer presented high signal (68.75%), and SWI imaging sequence mostly showed mixed signal.SWI sequence imaging were showed in 55 cases (45.45%) of intracranial hemorrhage and 16 drainage vessels. The detection rate of intracranial hemorrhage and tumor blood vessels was higher than that of T1WI plain scan, with statistically difference (P<0.05). Conclusion MR manifestations of brain metastatic tumors from different sources are different, providing a basis for reverse speculation of the source of brain metastatic tumors. At the same time, SWI is an important supplement to routine sequences, especially in the hemorrhage of brain tumors and the detection of blood vessels, which is worthy of clinical promotion and use.

Key words: Susceptibility-Weighted Imaging (SWI), Brain metastatic tumor, Magnetic resonance imaging, Enhanced scanning

蔡伟琳, 刘祥治, 陈仲良, 邱创嘉, 张晓勇. 探讨磁共振磁敏感加权成像(SWI)对脑膜、脑转移瘤的诊断价值[J]. 广州医药, 2019, 50(3): 48-51.

CAI Weilin, LIU Xiangzhi, CHEN Zhongliang, QIU Chuangjia, ZHANG Xiaoyong. Diagnostic value of susceptibility-weighted imaging (SWI) in meningiomas and brain metastases[J]. Guangzhou Medical Journal, 2019, 50(3): 48-51.

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探讨磁共振磁敏感加权成像(SWI)对脑膜、脑转移瘤的诊断价值

Diagnostic value of susceptibility-weighted imaging (SWI) in meningiomas and brain metastases

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