Evidence map›Paper›PMID 25285005›Full record

ArticleInternational journal of nanomedicine2014

Use of electrical impedance spectroscopy to detect malignant and potentially malignant oral lesions.

Craig Murdoch, Brian H Brown, Vanessa Hearnden, Paul M Speight, Katy D'Apice, Anne M Hegarty, John A Tidy, T Jamie Healey, Peter E Highfield, Martin H Thornhill

Abstract read
In one paragraph

Article in International journal of nanomedicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Article
  6. Comparison of Complex Open Domain Electrical Impedance Tomography Methods.IEEE transactions on bio-medical engineering · 2025
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  13. Multiscale Model Development for Electrical Properties of Thyroid and Parathyroid Tissues.IEEE open journal of engineering in medicine and biology · 2024
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  17. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Craig MurdochUnit of Oral and Maxillofacial Medicine and Surgery, University of Sheffield School of Clinical Dentistry, Sheffield, United Kingdom.
Brian H BrownUniversity of Sheffield Medical School, Beech Hill Road, Sheffield, United Kingdom.
Vanessa HearndenUnit of Oral and Maxillofacial Medicine and Surgery, University of Sheffield School of Clinical Dentistry, Sheffield, United Kingdom.
Paul M SpeightUnit of Oral and Maxillofacial Pathology, University of Sheffield School of Clinical Dentistry, Sheffield, United Kingdom.
Katy D'ApiceUnit of Oral and Maxillofacial Medicine and Surgery, University of Sheffield School of Clinical Dentistry, Sheffield, United Kingdom ; Unit of Oral Medicine, Charles Clifford Dental Hospital, Sheffield Teaching Hospitals National Health Service Foundation Trust, Sheffield, United Kingdom.
Anne M HegartyUnit of Oral Medicine, Charles Clifford Dental Hospital, Sheffield Teaching Hospitals National Health Service Foundation Trust, Sheffield, United Kingdom.
John A TidyDepartment of Gynaecological Oncology, Royal Hallamshire Hospital, Sheffield, United Kingdom.
T Jamie HealeyDepartment of Medical Physics, Royal Hallamshire Hospital, Sheffield, United Kingdom.
Peter E HighfieldZilico Ltd., The MedTECH Centre, Rutherford House, Manchester Science Park, Manchester, United Kingdom.
Martin H ThornhillUnit of Oral and Maxillofacial Medicine and Surgery, University of Sheffield School of Clinical Dentistry, Sheffield, United Kingdom ; Unit of Oral Medicine, Charles Clifford Dental Hospital, Sheffield Teaching Hospitals National Health Service Foundation Trust, Sheffield, United Kingdom.

Funding

Department of Health II-3A-1109-10015
6 · The paper itself

Abstract

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.

Indexed as

AdultCase-Control StudiesDielectric SpectroscopyHumansMaleMiddle AgedMouth MucosaMouth NeoplasmsROC CurveYoung Adultdysplasiahead and neck cancerimpedance spectroscopyoral cancerpotentially malignant lesions

Identifiers

PMID25285005
PMCPMC4181751

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.