arXiv Open Access 2025

Endoscopic fiber-coupled diamond magnetometer for cancer surgery

A. J. Newman S. M. Graham C. J. Stephen A. M. Edmonds M. L. Markham +1 lainnya
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Abstrak

Interoperative measurements using magnetic sensors is a valuable technique in cancer surgery for finding magnetic tracers. Here we present a fiber-coupled nitrogen-vacancy (N-V) center magnetometer capable of detecting iron oxide suspension (MagTrace from Endomagnetics Ltd.) used in breast cancer surgeries. Detection of an iron mass as low as 0.56~mg has been demonstrated, 100 times less than that of a recommended dose at a maximum distance of 5.8~mm. Detection of an iron concentration as low as 2.8 mg/ml has also been demonstrated, 20 times less than a recommended dose. The maximum working distance from the sensor can be as large as 14.6~mm for higher concentrations. The sensor head has a maximum diameter of 10~mm which would allow it to be used for endoscopy, laparoscopy and interoperative surgery.

Penulis (6)

A

A. J. Newman

S

S. M. Graham

C

C. J. Stephen

A

A. M. Edmonds

M

M. L. Markham

G

G. W. Morley

Format Sitasi

Newman, A.J., Graham, S.M., Stephen, C.J., Edmonds, A.M., Markham, M.L., Morley, G.W. (2025). Endoscopic fiber-coupled diamond magnetometer for cancer surgery. https://arxiv.org/abs/2504.05884

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