高分辨率血氧水平依赖效应静脉成像(HRBV)在颅内占位性病变中的应用研究  

The study of high resolution blood oxygen level dependent MR venography in intracranial masses

作　　者：易自生[1] 刘一平[1] 郭文彬[1] 吴剑飞[1] 李华良[1] 

机构地区：[1]中国人民解放军第九二医院MRI室,福建南平353000

出　　处：《中国临床医学影像杂志》2009年第5期319-322,共4页Journal of China Clinic Medical Imaging

摘　　要：目的:探讨高分辨率血氧水平依赖效应静脉成像(HRBV)在颅内占位性病变中的应用价值。方法:收集30例颅内占位性病变的患者,其中海绵状血管瘤6例,动静脉畸形2例,脑膜瘤6例,胶质瘤6例(Ⅰ级2例,Ⅲ级1例,Ⅳ级3例),听神经瘤、脑转移瘤及蛛网膜囊肿各2例,三叉神经瘤、髓母细胞瘤、血管母细胞瘤及血吸虫性肉芽肿各1例。行常规MRI平扫、增强扫描及HRBV扫描。结果:HRBV示6例海绵状血管瘤内分布大量细小的静脉,4例见"铁环征",4例病灶内见出血灶。动静脉畸形由粗大静脉血管团组成。所有高级别胶质瘤、听神经瘤、三叉神经瘤、肉芽肿及4例脑膜瘤内分布丰富的静脉,高级别胶质瘤内见斑片状出血灶。血管母细胞瘤壁结节内见粗大的静脉。脑转移瘤周边见环形静脉。Ⅰ级胶质瘤、蛛网膜囊肿及2例脑膜瘤内未见静脉,病灶周围静脉显示清晰。所有病变周围水肿显示HRBV与FLAIR一致。结论:HRBV有利于显示颅内占位性病变内静脉血管(包括微小静脉),能提供病变血供特点信息,同时能显示病灶内出血灶以及灶周水肿等信息,对病变的定性及指导临床治疗有重要价值。Objective： To investigate the value of high resolution blood oxygen level dependent MR venography （HRBV） in diagnosing intracranial masses. Methods： Thirty intraeranial masses performed by histology, 6 eaverous angiomas, 2 arteriovenous malformations, 6 meningiomas, 6 glioblastomas, 2 acoustic neuromas, metastases and arachnoid cysts, 1 of each of the following trigeminoma, medulloblastoma, hemangioblastoma and schistosomal granuloma. Routine MRI plain scan, contrast-enhancement and HRBV were performed in all patients. Results： Copious petty veins distributed in 6 caverous angiomas. The sign of iron rims and hemorrhagic focus were detected in 4 caverous angiomas. Profuse gross veins distributed in 2 arteriovenous malfomations. Many veins distributed in the high grade gliohlastomas, acoustic neuromas, trigeminoma, schistosomal granuloma and 4 meningiomas. Many patchy hemorrhagic focus distributed in the high grade gliohlastomas. A big fistular vein with branches located in the medullohlastoma. Armillary vein circled the metastases. Few vein were detected in the low grade glioblastnma, arachnoid cysts and 2 meningiomas. The edema around masses on HRBV were coherent with FLAIR. Conclusion： HRBV is useful to detect the venography of intracranial masses and can provide the information about blood supply, hemorrhagic focus and edema around masses. HRBV is an important tool to definite the histology of masses and direct the clinical therapy.

关 键 词：脑肿瘤 颅内动静脉畸形 磁共振成像 

分 类 号：R739.41[医药卫生—肿瘤] R743.4[医药卫生—临床医学]