Assessing carpal tunnel syndrome with magnetoneurography
Assessing carpal tunnel syndrome with magnetoneurography
复制标题
通过神经磁图评估腕管综合征
DOI：
10.1016/j.clinph.2022.03.021
复制
发表时间：
2022
影响因子：
4.7
通讯作者：
A. Okawa
中科院分区：
文献类型：
--
作者：
Toru Sasaki;S. Kawabata;J. Hashimoto;Y. Hoshino;K. Sekihara;Y. Adachi;M. Akaza;K. Fujita;A. Nimura;T. Yoshii;Y. Miyano;Y. Mitani;Taishi Watanabe;Shinji Sato;Sukchan Kim;A. Okawa
目的测定腕管综合征患者电刺激指中神经后的神经磁场，以高空间分辨率评价正中神经功能。方法采用超导量子干涉仪磁强计系统记录9例腕管综合征患者10只手电刺激指中神经后的神经磁场。患者根据Phalen或Tinel征阳性支持的症状（麻木、刺痛和疼痛）进行诊断。结果10只手中有6只手的内向电流波形幅度衰减至<70%或神经传导速度<40 m/s。常规神经传导研究的结果是正常的，这六只手。所有四只手，不能被诊断的magnetoneurography有严重的腕管综合征叠加周围神经病变继发于comorbidies.ConclusionsTechnical改进使magnetoneurography非侵入性可视化的电生理神经活动在腕管综合征patients.SignificanceMagnetoneurography可能有潜力，有助于详细诊断各种周围神经疾病。
ObjectiveTo measure the neuromagnetic fields of carpal tunnel syndrome patients after electrical digital nerve stimulation and evaluate median nerve function with high spatial resolution.MethodsA superconducting quantum interference device magnetometer system was used to record neuromagnetic fields at the carpal tunnel after electrical stimulation of the middle digital nerve in 10 hands of nine patients with carpal tunnel syndrome. The patients were diagnosed based on symptoms (numbness, tingling, and pain) supported by a positive Phalen or Tinel sign. A novel technique was applied to remove stimulus-induced artifacts, and current distributions were calculated using a spatial filter algorithm and superimposed on X-ray.ResultsIn 6 of the 10 hands, the amplitude of the inward current waveform attenuated to <70% or the nerve conduction velocity was <40 m/s. The results of conventional nerve conduction studies were normal for two of these six hands. All four hands that could not be diagnosed by magnetoneurography had severe carpal tunnel syndrome superimposed on peripheral neuropathy secondary to comorbidities.ConclusionsTechnical improvements enabled magnetoneurography to noninvasively visualize the electrophysiological nerve activity in carpal tunnel syndrome patients.SignificanceMagnetoneurography may have the potential to contribute to the detailed diagnosis of various peripheral nerve disorders.