A combined tactile and Raman probe for tissue characterization—design considerationsShow others and affiliations
2012 (English)In: Measurement science and technology, ISSN 0957-0233, E-ISSN 1361-6501, Vol. 23, no 6, article id 065901Article in journal (Refereed) Published
Abstract [en]
Histopathology is the golden standard for cancer diagnosis and involves the characterization of tissue components. It is labour intensive and time consuming. We have earlier proposed a combined fibre-optic near-infrared Raman spectroscopy (NIR-RS) and tactile resonance method (TRM) probe for detecting positive surgical margins as a complement to interoperative histopathology. The aims of this study were to investigate the effects of attaching an RS probe inside a cylindrical TRM sensor and to investigate how laser-induced heating of the fibre-optic NIR-RS affected the temperature of the RS probe tip and an encasing TRM sensor. In addition, the possibility to perform fibre-optic NIR-RS in a well-lit environment was investigated. A small amount of rubber latex was preferable for attaching the thin RS probe inside the TRM sensor. The temperature rise of the TRM sensor due to a fibre-optic NIR-RS at 270 mW during 20 s was less than 2 °C. Fibre-optic NIR-RS was feasible in a dimmed bright environment using a small light shield and automatic subtraction of a pre-recorded contaminant spectrum. The results are promising for a combined probe for tissue characterization.
Place, publisher, year, edition, pages
2012. Vol. 23, no 6, article id 065901
Keywords [en]
tactile sensor, Raman spectroscopy, biological tissue
National Category
Other Medical Engineering
Research subject
Medical Engineering for Healthcare; Centre - Centre for Biomedical Engineering and Physics (CMTF)
Identifiers
URN: urn:nbn:se:ltu:diva-14652DOI: 10.1088/0957-0233/23/6/065901ISI: 000304187300025Scopus ID: 2-s2.0-84862059679Local ID: e11febed-b17a-406c-983e-8b9bcb17af5fOAI: oai:DiVA.org:ltu-14652DiVA, id: diva2:987625
Note
Validerad; 2012; 20120507 (mornyb)
2016-09-292016-09-292024-03-26Bibliographically approved