| 查云飞,孔祥泉,刘定西,徐海波.三维对比增强磁共振血管成像对正常颅内静脉系统的显示[J].中国医学影像技术,2005,21(6):966~969 |
| 三维对比增强磁共振血管成像对正常颅内静脉系统的显示 |
| Normal intracranial venous system in three-dimensional contrast enhanced MR angiography |
| 投稿时间：2005-03-12 修订日期：2005-04-20 |
| DOI： |
| 中文关键词: 颅窦 脑静脉 磁共振血管成像 比较研究 |
| 英文关键词:Cranial sinuses Cerebral veins Magnetic resonance angiography Comparative study |
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| 中文摘要: |
| 目的 比较3D-CE MRA、2D-TOF MRA和3D-PC MRA技术对正常颅内静脉不同解剖部位的显示能力。方法 28例无颅脑病变的受检者分别行斜冠状位2D-TOF、矢状位3D-PC及矢状位3D-CE MRA检查。3种MRA技术的原始图像均进行最大信号强度投影处理。在最大信号强度投影的图像上对预设的颅内各解剖部位的静脉血管图像质量逐一进行分级比较。结果 对颅内上矢状窦、直窦、双侧横窦、双侧乙状窦、大脑中浅静脉及Galen静脉的显示,3D-CE MRA与2D-TOF之间及3D-CE MRA与3D-PC之间分别比较均无显著性差异(P值均＞0.01)。3D-CE MRA对下矢状窦、窦汇的显示优于2D-TOF(P值均＜0.01),对大脑上静脉、Trolard静脉、Labbё静脉的显示优于2D-TOF和 3D-PC(P值均＜0.01)。结论 3D-CE MRA能快速提供高质量的颅内静脉结构图像,尤其是对窦汇区静脉结构的显示优于2D-TOF MRA、对大脑皮层浅静脉的显示优于2D-TOF及3D-PC MRA。 |
| 英文摘要: |
| Objective To compare the visualization of normal intracranial venous system at three-dimensional contrast enhanced MR angiography (3D-CE MRA), two-dimensional time of flight (2D-TOF) and three-dimensional phase contrast (3D-PC) MR angiography. Methods In 28 healthy subjects, oblique coronal 2D-TOF, sagittal 3D-PC and sagittal 3D-CE MRA were respectively performed. All data were displayed as maximum intensity projection (MIP) images. The image quality of predefined cerebral veins and sinuses was graded by two radiologists in consensus as continuous and completely visible, continuous and partly visible, not continuous and vaguely visible, or not visible. Results The superior sagittal sinus, straight sinus, bilateral transverse sinuses, bilateral sigmoid sinuses, superficial middle cerebral veins and Galen vein were visualized equally well with 2D-TOF, 3D-PC and 3D-CE MRA (P＞0.01, respectively). For visualization of the inferior sagittal sinus and confluence of sinuses, 3D-CE MRA was superior to 2D-TOF MRA (P＜0.01), but not superior to 3D-PC MRA (P＞0.01). For visualization of the superior cerebral veins, Trolard veins and Labbё veins, 3D-CE MRA was superior to 2D-TOF and 3D-PC MRA (P＜0.01, respectively). The septal, thalamostriate, internal cerebral and Rosenthal basal veins were also visualized equally well with 2D-TOF, 3D-PC and 3D-CE MRA (P＞0.01, respectively). Conclusion 3D-CE MRA can quickly provide high-quality images of intracranial venous system. 3D-CE MRA depicts the confluence of sinuses better than 2D-TOF MRA and shows the cortical superficial veins better than 2D-TOF MRA and 3D-PC MRA. |
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