Endoscopic diamond magnetometer for cancer surgery
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2025-07-16 |
| Journal | Physical Review Applied |
| Authors | NULL AUTHOR_ID, Suzanne Graham, Colin Stephen, Andrew M. Edmonds, Matthew Markham |
| Institutions | Engineering and Physical Sciences Research Council, Element Six (United Kingdom) |
| Citations | 1 |
Abstract
Section titled āAbstractāIntraoperative measurements using magnetic sensors are a valuable technique in cancer surgery for finding magnetic tracers. Here we present a fiber-coupled nitrogen-vacancy center magnetometer capable of detecting iron oxide suspension (MagTraceā¢ 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 intraoperative surgery.