| 常灿灿,段阳,李虹易,李延锋,杨本强,林森.MR三维磁化准备快速梯度回波技术分析脑转移瘤与瘤周血管的相关性[J].中国医学影像技术,2016,32(1):40~43 |
| MR三维磁化准备快速梯度回波技术分析脑转移瘤与瘤周血管的相关性 |
| Analysis of correlation between intracranial metastasis and peri-tumor vessels using three-dimensional magnetization prepared rapid acquisition gradient echo sequences |
| 投稿时间：2015-06-03 修订日期：2015-11-23 |
| DOI：10.13929/j.1003-3289.2016.01.011 |
| 中文关键词: 脑肿瘤 肿瘤转移 血管 磁共振成像 |
| 英文关键词:Brain neoplasms Neoplasm metastasis Blood vessels Magnetic resonance imaging |
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| 中文摘要: |
| 目的 采用低毒性钆布醇延迟增强三维磁化准备快速梯度回波(3D-MPRAGE)技术分析脑转移瘤与瘤周血管的相关性。方法 回顾分析25例诊断为脑转移瘤的患者资料,采用3D-MPRAGE序列双倍剂量延迟增强扫描技术进行图像采集。分析脑转移瘤与不同分型瘤周血管的相关性,并进行两次图像评价的一致性检验。结果 25例患者共发现118个转移瘤病灶及573条瘤周血管,肿瘤大小与瘤周血管数呈正相关(r=0.75,P<0.05),Ⅰ、Ⅱ、Ⅲ型血管分别与肿瘤大小呈正相关(r=0.44、0.32、0.74,P均<0.05)。对病灶数目和血管分型的两次评价具有很好的一致性(病灶数目和Ⅰ型血管数:Kappa=1;Ⅱ、Ⅲ型血管数:Kappa=0.886、0.861)。结论 增强3D-MPRAGE技术可显示脑转移瘤与瘤周血管的关系,瘤周血管可分为3型,其分型与病灶大小有一定的相关性。 |
| 英文摘要: |
| Objective To investigate the correlation of intracranial metastasis and peri-tumor vessels using hypotoxic gadobutrol delayed contrast enhancement three-dimensional magnetization prepared rapid acquisition gradient echo sequences (3D MPRAGE). Methods Twenty-five patients with intracranial metastasis were retrospectively enrolled, who had received delayed double-dose gadobutrol contrast enhancement of 3D-MPRAGE. The relationship between intracranial metastasis and different peri-tumor vessels was analyzed, and consistency test was made between the two imaging evaluations. Results There were 118 metastatic lesions and 573 peri-tumor vessels in the 25 patients, the tumor size and number of peri-tumoral vascular were positively correlated (r=0.75, P<0.05). TypeⅠ, Ⅱ, Ⅲ of peri-tumor vessel were respectively positively correlated to the tumor size (r=0.44, 0.32, 0.74, all P<0.05). The both evaluations of lesions number and peri-tumor vessel types had good consistency (number of lesions and peri-tumor vessel of Type Ⅰ: Kappa=1; number of peri-tumor vessel of type Ⅱ and Ⅲ: Kappa=0.886, 0.861). Conclusion Delayed and double-dose gadobutrol contrast enhancement MR 3D-MPRAGE can clearly show the relationship between intracranial metastasis and peri-tumor vessel, which is classified as three types, and each type correlates with its lesions' size. |
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