Diffuse optical imaging of the healthy and diseased breast: A systematic review |
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Authors: | Daniel Richard Leff Oliver J Warren Louise C Enfield Adam Gibson Thanos Athanasiou Darren K Patten Jem Hebden Guang Zhong Yang Ara Darzi |
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Affiliation: | (1) Department of Biosurgery and Surgical Technology, Imperial College London, 10th Floor QEQM Building, St. Mary’s Hospital, London, W2 1NY, UK;(2) Department of Medical Physics and Bioengineering, University College London, Malet Place Engineering Building Gower Street, London, WC1E 6BT, UK;(3) Royal Society/Wolfson Medical Image Computing Laboratory, 305/306 Huxley Building, Department of Computing, Imperial College of Science, Technology, and Medicine, 180 Queens Gate, London, SW7 2BZ, UK |
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Abstract: | Screening X-ray mammography is limited by false positives and negatives leading to unnecessary physical and psychological
morbidity. Diffuse Optical Imaging using harmless near infra red light, provides lesion detection based on functional abnormalities
and represents a novel diagnostic arm that could complement traditional mammography. Reviews of optical breast imaging have
not been systematic, are focused mainly on technological developments, and have become superseded by rapid technological advancement.
The aim of this study is to review clinically orientated studies involving approximately 2,000 women in whom optical mammography
has been used to evaluate the healthy or diseased breast. The results suggest that approximately 85% of breast lesions are
detectable on optical mammography. Spectroscopic resolution of tissue haemoglobin composition and oxygen saturation may improve
the detectability of breast diseases. Results suggest that breast lesions contain approximately twice the haemoglobin concentration
of background tissue. Current evidence suggests that it is not possible to distinguish benign from malignant disease using
optical imaging techniques in isolation. Methods to improve the performance of Diffuse Optical Imaging, such as better spectral
coverage with additional wavelengths, improved modelling of light transport in tissues and the use of extrinsic dyes may augment
lesion detection and characterisation. Future research should involve large clinical trials to determine the overall sensitivity
and specificity of optical imaging techniques as well as to establish patient satisfaction and economic viability. |
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Keywords: | Diffuse optical imaging Optical mammography Optical tomography Near infrared spectroscopy Breast cancer |
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