Ten Chinese patients with brain tumors involving language regions were selected. Preoperative functional MRI was performed to locate Broca＇s or Wernicke＇s area, and the cortex that was essential for language functio...Ten Chinese patients with brain tumors involving language regions were selected. Preoperative functional MRI was performed to locate Broca＇s or Wernicke＇s area, and the cortex that was essential for language function was determined by electrocortical mapping. A site-by-site comparison between functional MRI and electrocortical mapping was performed with the aid of a neuronavigation device. Results showed that the sensitivity and specificity of preoperative functional MRI were 80.0% and 85.0% in Broca＇s area and 66.6% and 85.2% in Wemicke＇s area, respectively. These experimental findings indicate that functional MRI is an accurate, reliable technique with which to identify the location of Wernicke＇s area or Broca＇s area in patients with brain tumors.展开更多
目的探讨功能磁共振成像（Functional Magnetic Resonance Imaging，fMRI）在脑运动区病变患者术前评估和手术设计中的作用。方法20例累及运动区的脑内占位病变患者，术前采用手握拳运动block激发模式，fMRI获取运动激活信号，术前分析...目的探讨功能磁共振成像（Functional Magnetic Resonance Imaging，fMRI）在脑运动区病变患者术前评估和手术设计中的作用。方法20例累及运动区的脑内占位病变患者，术前采用手握拳运动block激发模式，fMRI获取运动激活信号，术前分析病变与运动区的关系及功能重组织类型。结果病变位于中央前回前或后15例，fMRI均表现为病变对侧第一运动区（Primary Motor Area，M1）激活并向后或向前移位，病灶边缘与激活信号之间的最小距离为5～9mm，平均9．6mm。病变位于中央前回5例，表现为瘤周激活3例，运动前区激活并皮层弥散激活2例。结论fMRI有助于神经外科医师在术前对病变与功能区的关系及皮层功能重组织类型有较好的认识，对运动区病变术前评估和手术设计有重要指导价值。展开更多
基金supported by the Key Technologies R&D Program of Ningxia Hui Autonomous Region in 2008,No.2008-165-17the Key Technologies R&D Program of Ningxia Hui Autonomous Region in 2011,No. 2011-89
文摘Ten Chinese patients with brain tumors involving language regions were selected. Preoperative functional MRI was performed to locate Broca＇s or Wernicke＇s area, and the cortex that was essential for language function was determined by electrocortical mapping. A site-by-site comparison between functional MRI and electrocortical mapping was performed with the aid of a neuronavigation device. Results showed that the sensitivity and specificity of preoperative functional MRI were 80.0% and 85.0% in Broca＇s area and 66.6% and 85.2% in Wemicke＇s area, respectively. These experimental findings indicate that functional MRI is an accurate, reliable technique with which to identify the location of Wernicke＇s area or Broca＇s area in patients with brain tumors.
文摘目的探讨功能磁共振成像（Functional Magnetic Resonance Imaging，fMRI）在脑运动区病变患者术前评估和手术设计中的作用。方法20例累及运动区的脑内占位病变患者，术前采用手握拳运动block激发模式，fMRI获取运动激活信号，术前分析病变与运动区的关系及功能重组织类型。结果病变位于中央前回前或后15例，fMRI均表现为病变对侧第一运动区（Primary Motor Area，M1）激活并向后或向前移位，病灶边缘与激活信号之间的最小距离为5～9mm，平均9．6mm。病变位于中央前回5例，表现为瘤周激活3例，运动前区激活并皮层弥散激活2例。结论fMRI有助于神经外科医师在术前对病变与功能区的关系及皮层功能重组织类型有较好的认识，对运动区病变术前评估和手术设计有重要指导价值。
