Imaging fascicular organization of rat sciatic nerves with fast neural electrical impedance tomography.
Imaging fascicular organization of rat sciatic nerves with fast neural electrical impedance tomography.
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DOI:
10.1038/s41467-020-20127-x
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发表时间:
2020-12-07
影响因子:
16.6
通讯作者:
Holder D
中科院分区:
文献类型:
--
作者:
Ravagli E;Mastitskaya S;Thompson N;Iacoviello F;Shearing PR;Perkins J;Gourine AV;Aristovich K;Holder D
Imaging compound action potentials (CAPs) in peripheral nerves could help avoid side effects in neuromodulation by selective stimulation of identified fascicles. Existing methods have low resolution, limited imaging depth, or are invasive. Fast neural electrical impedance tomography (EIT) allows fascicular CAP imaging with a resolution of <200 µm, <1 ms using a non-penetrating flexible nerve cuff electrode array. Here, we validate EIT imaging in rat sciatic nerve by comparison to micro-computed tomography (microCT) and histology with fluorescent dextran tracers. With EIT, there are reproducible localized changes in tissue impedance in response to stimulation of individual fascicles (tibial, peroneal and sural). The reconstructed EIT images correspond to microCT scans and histology, with significant separation between the fascicles (p < 0.01). The mean fascicle position is identified with an accuracy of 6% of nerve diameter. This suggests fast neural EIT can reliably image the functional fascicular anatomy of the nerves and so aid selective neuromodulation. To be successful, selective neuromodulation requires a non-invasive method of imaging the fascicular anatomy of peripheral nerves. Here, the authors show the applicability and reliability of fast neural electrical impedance tomography for this purpose and provide its validation against the gold standards of invasive imaging.
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影响因子:
10.6
作者:
Cherepenin, VA;Karpov, AY;Meister, JD
通讯作者:
Meister, JD
影响因子:
1.2
作者:
Dweiri, Yazan M.;Stone, Matthew A.;Durand, Dominique M.
通讯作者:
Durand, Dominique M.
影响因子:
--
作者:
Grinsell D;Keating CP
通讯作者:
Keating CP
DOI:
10.3390/s17020280
发表时间:
2017-01-31
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
作者:
Avery J;Dowrick T;Faulkner M;Goren N;Holder D
通讯作者:
Holder D
影响因子:
3
作者:
Chapman, ChristOpher A. R.;Smith, Trevor M.;Holder, David S.
通讯作者:
Holder, David S.