Patil A A, Yamanashi W S, Valentine J L, Hill D
Division of Neurological Surgery, University of Nebraska School of Medicine, Omaha.
Neurosurgery. 1988 Jan;22(1 Pt 1):18-22. doi: 10.1227/00006123-198801010-00003.
The electromagnetic field focusing (EFF) probe, which is based on the principle of eddy current convergence, produces intense pinpoint heat at its point of contact with tissue. This allows cutting and vaporization of tissue and coagulation of vessels. The present experiments were conducted to study heat distribution to the surrounding tissue in brain and phantom and the effect on the brain of vaporization of intracerebral tumors in 19 rabbits. The follow-up period was as long as 47 days. The heating pattern showed a rise of temperature up to 250 degrees C at the probe tip, with minimal or no temperature increase at 2 mm and beyond. Minimal or no change was noted in the surrounding brain after tumor vaporization, indicating that this system would be safe in the vaporization of brain tumors in clinical neurosurgery.
基于涡电流汇聚原理的电磁场聚焦（EFF）探头在与组织接触点产生强烈的点状热量。这使得组织能够被切割、汽化以及血管能够被凝固。本实验旨在研究在19只兔子中，热量在脑和模型中的周围组织中的分布情况以及脑内肿瘤汽化对脑部的影响。随访期长达47天。加热模式显示探头尖端温度升高至250摄氏度，在2毫米及以外的地方温度升高极小或没有升高。肿瘤汽化后周围脑组织未见明显变化，这表明该系统在临床神经外科脑肿瘤汽化中是安全的。
