中国医学影像学杂志 Chinese Journal of Medical Imaging·433 放射诊断学 Diagnostic radiology Doi:10.3969/issn.1005-5185.2011.06.009 论著 Original research 磁共振磁敏感加权成像在脑血管性疾病中的应用价值 The Value of Susceptibility-Weighted Imaging in Cerebrovascular Disease 张文文 ZHANG Wemen 【摘要】目的探讨磁敏感加权成像(SWⅠ)在常见脑血管性疾病中的应用价值 马强华 MA Qianghua 资料与方法回顾性分析经临床随访及数字减影血管造影(DSA)证实的26例脑 杨晓萍 YANG Xiaoping 血管疾病患者的MRI资料,与常规TWI、T2W、12 FLAIR序列进行比较,分析 叶建军 YE Jianjun 各种脑血管性疾病在SwI上的影像学表现,评价SW在诊断脑血管性疾病中的优 陈纲 CHEN Gang 势。结果海绵状血管瘤8例,常规MRI检出病灶11处,SⅥI共发现病灶37处, 罗樱 LUO Ying 病灶在SwI图上以低信号为主,部分病灶内可见点状高信号:动静脉畸形2例,SWI 对动静脉畸形的血管团及引流静脉能够淸晰显示,但对其供血动脉显示欠佳:静脉 作者单位 畸形3例,常规MRI仅显示较粗大的流空血管,Sw清晰显示周围小畸形血管 中国人民解放军兰州军区兰州总医院脑梗死10例,sW显示2例急性期脑梗死灶内的微小出血灶,常规MRI无异常发 影像诊断中心甘肃兰州730050 现。脑血管淀粉样变性3例,SⅥI对其引起的微小出血灶及血肿能淸晰显示。结论 通讯作者马强华 swⅠ能够淸晰显示低血流量畸形血管及微小岀血灶,为MRⅠ诊断脑血管疾病提供 更加详细、准确的信息 The Center of Imaging Diagnosis of 【关键词】脑血管障碍 振成像:诊断,鉴别 Lanzhou General Hospital, Lanzhou, Gansu, 730050 (Abstract] Purpose To determine the value of susceptibility-weighted imaging(SWD) in cerebrovascular disease. Methods swi data of 26 patients with cerebrovascular Address Correspondence to MA Qianghua disease, which were confirmed by follow-up or digital subtraction angiography (SA), E-mail:maqianghua2010@126.com were retrospectively analyzed and compared with those of conventional MRi (including TIWI, T2WI, T2-FLAIR), to determine the imaging characteristic and the advantages of 中国图书分类法分类号 SWI in diagnosing cerebrovascular disease. Results In 8 cases of cavernous angioma, I 1 lesions were detected by conventional Mri, while 37 lesions were detected by SwI R743.045 Most cavernous angiomas showed hypointensity on Swl, but there was hyperintensity within some lesions. In 2 cases of arteriovenous malformation, s wi demonstrated the 次稿日期:2010-0609 draining vein and capillary clearly, but the feeding arteries of A VM were not detected. In 修回日期:2010-06-28 3 cases of venous malformation, Swi could diagnose the lesions that conventional MRI failed to detect. The smaller hemorrhage was detected by SwI in 2 cases of acut 中国医学影像学杂志 erebral infarction. In 3 cases with cerebral amyloid angiopathy, SwI shower smaller hemorrhage and hematoma. Conclusion Swi can display the low-flow anomalies and 2011年第19卷第6期:433-435 smaller hemorrhage, providing more detailed and accurate information for cerebrov Chinese Journal of Medical Imaging 201 Volume 19(6:433-435 ( Key words Cerebrovascular disorders; Magnetic resonance imaging, Diagnos 磁敏感加权成像( susceptibility-weighted imaging,1资料与方法 SWⅠ)是一种利用组织磁敏感性不同而成像的新型技 术,对于血流缓慢的静脉血管、血液代谢产物、铁钙11一般资料选取200912~-20106在中国人民 沉积比较敏感,目前主要应用于脑血管畸形、微小脑解放军兰州军区兰州总医院MR室行MR检查的脑血 出血灶、脑组织变性性疾病及脑肿瘤的诊断及鉴别诊管疾病患者26例,其中男性17例,女性9例,年龄 断2。本研究旨在探讨SW在脑血管性疾病中的应25~80岁,平均55岁。所有患者经临床随访或数字 用价值,分析脑血管性疾病的SWI影像学特点。 减影血管造影( digital subtraction angiography,DsA)证中国医学影像学杂志 Chinese Journal of Medical Imaging ²433² 放射诊断学 Diagnostic Radiology Doi：10.3969/j.issn.1005-5185.2011.06.009 论著 Original Research 磁共振磁敏感加权成像在脑血管性疾病中的应用价值 The Value of Susceptibility-Weighted Imaging in Cerebrovascular Disease 张文文 ZHANG Wenwen 马强华 MA Qianghua 杨晓萍 YANG Xiaoping 叶建军 YE Jianjun 陈 纲 CHEN Gang 罗 樱 LUO Ying 作者单位 中国人民解放军兰州军区兰州总医院 影像诊断中心 甘肃兰州 730050 通讯作者 马强华 The Center of Imaging Diagnosis of Lanzhou General Hospital, Lanzhou, Gansu, 730050 Address Correspondence to:MA Qianghua E-mail: maqianghua2010@126.com 中国图书分类法分类号 R743.045 收稿日期：2010-06-09 修回日期：2010-06-28 中国医学影像学杂志 2011 年 第 19 卷 第 6 期：433-435 Chinese Journal of Medical Imaging 2011 Volume 19(6):433-435 【摘要】目的 探讨磁敏感加权成像（SWI）在常见脑血管性疾病中的应用价值。 资料与方法 回顾性分析经临床随访及数字减影血管造影（DSA）证实的 26 例脑 血管疾病患者的 MRI 资料，与常规 T1WI、T2WI、T2-FLAIR 序列进行比较，分析 各种脑血管性疾病在 SWI 上的影像学表现，评价 SWI 在诊断脑血管性疾病中的优 势。结果 海绵状血管瘤 8 例，常规 MRI 检出病灶 11 处，SWI 共发现病灶 37 处， 病灶在 SWI 图上以低信号为主，部分病灶内可见点状高信号；动静脉畸形 2 例，SWI 对动静脉畸形的血管团及引流静脉能够清晰显示，但对其供血动脉显示欠佳；静脉 畸形 3 例，常规 MRI 仅显示较粗大的流空血管，SWI 清晰显示周围小畸形血管。 脑梗死 10 例，SWI 显示 2 例急性期脑梗死灶内的微小出血灶，常规 MRI 无异常发 现。脑血管淀粉样变性 3 例，SWI 对其引起的微小出血灶及血肿能清晰显示。结论 SWI 能够清晰显示低血流量畸形血管及微小出血灶，为 MRI 诊断脑血管疾病提供 更加详细、准确的信息。 【关键词】脑血管障碍；磁共振成像；诊断，鉴别 【Abstract】Purpose To determine the value of susceptibility-weighted imaging (SWI) in cerebrovascular disease. Methods SWI data of 26 patients with cerebrovascular disease, which were confirmed by follow-up or digital subtraction angiography (DSA), were retrospectively analyzed and compared with those of conventional MRI (including T1WI、T2WI、T2-FLAIR) , to determine the imaging characteristic and the advantages of SWI in diagnosing cerebrovascular disease. Results In 8 cases of cavernous angioma, 11 lesions were detected by conventional MRI, while 37 lesions were detected by SWI. Most cavernous angiomas showed hypointensity on SWI, but there was hyperintensity within some lesions. In 2 cases of arteriovenous malformation, SWI demonstrated the draining vein and capillary clearly，but the feeding arteries of AVM were not detected. In 3 cases of venous malformation, SWI could diagnose the lesions that conventional MRI failed to detect. The smaller hemorrhage was detected by SWI in 2 cases of acute cerebral infarction. In 3 cases with cerebral amyloid angiopathy, SWI shower smaller hemorrhage and hematoma. Conclusion SWI can display the low-flow anomalies and smaller hemorrhage, providing more detailed and accurate information for cerebrov￾ascular disease diagnosis. 【Key words】Cerebrovascular disorders; Magnetic resonance imaging; Diagnosis, differential 磁敏感加权成像（susceptibility-weighted imaging, SWI）是一种利用组织磁敏感性不同而成像的新型技 术，对于血流缓慢的静脉血管、血液代谢产物、铁钙 沉积比较敏感，目前主要应用于脑血管畸形、微小脑 出血灶、脑组织变性性疾病及脑肿瘤的诊断及鉴别诊 断[1,2]。本研究旨在探讨 SWI 在脑血管性疾病中的应 用价值，分析脑血管性疾病的 SWI 影像学特点。 1 资料与方法 1.1 一般资料 选取 2009-12～2010-06 在中国人民 解放军兰州军区兰州总医院MR室行MRI检查的脑血 管疾病患者 26 例，其中男性 17 例，女性 9 例，年龄 25～80 岁，平均 55 岁。所有患者经临床随访或数字 减影血管造影(digital subtraction angiography，DSA)证