Mäkelä J P
Low Temperature Laboratory, Helsinki University of Technology, Espoo, Finland.
Physiol Meas. 1993 Nov;14 Suppl 4A:A51-4. doi: 10.1088/0967-3334/14/4a/009.
Auditory magnetic fields evoked by noise/square-wave sequences, presented once every 2.2 s, were recorded in eight subjects who had had a stroke in the auditory cortex or in its vicinity. In two subjects with large temporoparietal lesions, the magnetic 100 ms deflection (N100m) was absent over the damaged side. In one subject with a large but less deep temporoparietal lesion, a small N100m could be discerned on the defective side. The latency of N100m was increased in patients with frontal lesions. Small damages in the vicinity of the supratemporal plane had no effect on N100m. Magnetoencephalography is particularly applicable to outpatient studies of stroke.
对8名在听觉皮层或其附近发生中风的受试者记录了由噪声/方波序列诱发的听觉磁场，该序列每2.2秒呈现一次。在两名患有大面积颞顶叶病变的受试者中，受损侧未出现100毫秒磁偏转（N100m）。在一名患有大面积但深度较浅的颞顶叶病变的受试者中，在患侧可辨别出较小的N100m。额叶病变患者的N100m潜伏期延长。颞上平面附近的小损伤对N100m无影响。脑磁图特别适用于中风的门诊研究。
