Journal
INTERNATIONAL JOURNAL OF NANOMEDICINE
Volume 9, Issue -, Pages 4521-4532Publisher
DOVE MEDICAL PRESS LTD
DOI: 10.2147/IJN.S64087
Keywords
oral cancer; head and neck cancer; potentially malignant lesions; dysplasia; impedance spectroscopy
Funding
- National Institute for Health Research Invention for Innovation (i4i) program [II-3A-1109-10015]
- National Institute for Health Research [II-3A-1109-10015] Funding Source: researchfish
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The electrical properties of tissues depend on their architecture and cellular composition. We have previously shown that changes in electrical impedance can be used to differentiate between different degrees of cervical dysplasia and cancer of the cervix. In this proof-of-concept study, we aimed to determine whether electrical impedance spectroscopy (EIS) could distinguish between normal oral mucosa; benign, potentially malignant lesions (PML); and oral cancer. EIS data were collected from oral cancer (n=10), PML (n=27), and benign (n=10) lesions. EIS from lesions was compared with the EIS reading from the normal mucosa on the contralateral side of the mouth or with reference spectra from mucosal sites of control subjects (n=51). Healthy controls displayed significant differences in the EIS obtained from different oral sites. In addition, there were significant differences in the EIS of cancer and high-risk PML versus low-risk PML and controls. There was no significant difference between benign lesions and normal controls. Study subjects also deemed the EIS procedure considerably less painful and more convenient than the scalpel biopsy procedure. EIS shows promise at distinguishing among malignant, PML, and normal oral mucosa and has the potential to be developed into a clinical diagnostic tool.
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