期刊
ANALYST
卷 146, 期 12, 页码 3799-3809出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1an00296a
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资金
- UK Engineering and Physical Sciences Research Council [EP/L025620/1]
- EPSRC [EP/L025620/1] Funding Source: UKRI
One of the main challenges in cancer surgery is to ensure complete excision of the tumor while sparing healthy tissue. Histopathology is often impractical for intra-operative use due to time constraints, but Raman micro-spectroscopy offers a potential solution. Selective-sampling Raman imaging reduces acquisition time and has promising results in clinical integration for assessing surgical margins accurately and quickly.
One of the main challenges in cancer surgery is to ensure the complete excision of the tumour while sparing as much healthy tissue as possible. Histopathology, the gold-standard technique used to assess the surgical margins on the excised tissue, is often impractical for intra-operative use because of the time-consuming tissue cryo-sectioning and staining, and availability of histopathologists to assess stained tissue sections. Raman micro-spectroscopy is a powerful technique that can detect microscopic residual tumours on ex vivo tissue samples with accuracy, based entirely on intrinsic chemical differences. However, raster-scanning Raman micro-spectroscopy is a slow imaging technique that typically requires long data acquisition times wich are impractical for intra-operative use. Selective-sampling Raman imaging overcomes these limitations by using information regarding the spatial properties of the tissue to reduce the number of Raman spectra. This paper reviews the latest advances in selective-sampling Raman techniques and applications, mainly based on multimodal optical imaging. We also highlight the latest results of clinical integration of a prototype device for non-melanoma skin cancer. These promising results indicate the potential impact of Raman spectroscopy for providing fast and objective assessment of surgical margins, helping surgeons ensure the complete removal of tumour cells while sparing as much healthy tissue as possible.
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