BRAIN ELECTRICAL-ACTIVITY MAPPING (BEAM) - METHOD FOR EXTENDING THE CLINICAL UTILITY OF EEG AND EVOKED-POTENTIAL DATA
BRAIN ELECTRICAL-ACTIVITY MAPPING (BEAM) - METHOD FOR EXTENDING THE CLINICAL UTILITY OF EEG AND EVOKED-POTENTIAL DATA
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DOI：
10.1002/ana.410050402
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发表时间：
1979-01-01
影响因子：
11.2
通讯作者：
LOMBROSO, CT
中科院分区：
文献类型：
--
作者：
DUFFY, FH;BURCHFIEL, JL;LOMBROSO, CT
从包含在多通道多导记录中的大量数据中单独通过视觉检查提取临床有用信息的固有困难限制了脑电图和诱发电位的准确性和实用范围。描述了一种用于浓缩和总结来自多个头皮电极的记录中包含的时空信息的方法。通过计算机控制的地形测绘和彩色电视图像显示数据，减少了数据维度，提高了可见性。例如，这种脑电活动图（BEAM）（1）定位具有正常或非诊断性EEG的患者的肿瘤，（2）在计算机轴向断层扫描上增加了额外的信息，（3）显示功能性病变但CT扫描正常的患者的电生理异常。对神经系统病变功能成分的敏感性表明，BEAM可以为CT扫描提供的解剖定义提供补充信息。
The difficulties inherent in extracting clinically useful information by visual inspection alone from the massive amounts of data contained in multichannel polygraphic recordings have placed limits on the accuracy and range of utility of electroencephalography and evoked potentials. A method for condensing and summarizing the spatiotemporal information contained in recordings from multiple scalp electrodes is described. Data dimensionality is reduced and visibility increased by computer‐controlled topographic mapping and display of data as color television images. Examples are given in which such brain electrical activity mapping (BEAM) (1) localizes tumors in patients with normal or nondiagnostic EEGs, (2) adds additional information to that visible on computerized axial tomography, and (3) demonstrates electrophysiological abnormalities in patients with functional lesions but normal CT scans. A sensitivity to the functional component of a neurological lesion suggests that BEAM may provide complementary information to the anatomical definition provided by the CT scan.