This project involves (1) the development of a novel instrument for optical imaging of the human breast, and (2) pilot clinical tests to demonstrate the effectiveness of the proposed instrument in detecting breast cancer and monitoring response to neoadjuvant therapy of breast cancer. The proposed instrument features levels of spatial sampling (25 points/cm2 on the x-y scanning plane), spectral sampling (0.5 points/nm over the wavelength band 650-1000 nm), and temporal resolution (20 full spectra/s) that are not simultaneously achieved by any existing optical mammography instrument. These instrumentation capabilities will be used to enhance the information content of optical mammograms in terms of spatial information (depth discrimination, tomographic reconstruction of hemoglobin/water/lipid/scattering-parameters distributions), quantitative oximetry, and temporal hemodynamics characterization. The planned clinical tests will specifically test the hypothesis that intrinsic optical contrast provided by hemoglobin, water, lipids, and scattering parameters in breast tissue allows for the detection of breast cancer, its discrimination from benign breast lesions, and for monitoring effectiveness of neoadjuvant breast cancer therapy. The broad objective of this application is the development of optical mammography as a stand-alone clinical tool for breast cancer detection, and for monitoring effectiveness of therapy.
This research can open new opportunities for clinical practice in the areas of breast cancer detection and prediction of response to treatment. In fact, the proposed instrument for optical imaging of the breast provides functional information (hemodynamics, oxygenation, water/lipids distribution, etc.) that is complementary to the information provided by existing clinical imaging modalities, thus potentially enhancing detection of breast cancer and its discrimination from benign lesions. Furthermore, because the proposed instrument uses safe levels of non-ionizing near-infrared light, it allows for repeated breast examinations on a weekly or even daily basis for continuous monitoring of breast cancer progression or regression.
|Fantini, Sergio (2014) Dynamic model for the tissue concentration and oxygen saturation of hemoglobin in relation to blood volume, flow velocity, and oxygen consumption: Implications for functional neuroimaging and coherent hemodynamics spectroscopy (CHS). Neuroimage 85 Pt 1:202-21|
|Pierro, Michele L; Kainerstorfer, Jana M; Civiletto, Amanda et al. (2014) Reduced speed of microvascular blood flow in hemodialysis patients versus healthy controls: a coherent hemodynamics spectroscopy study. J Biomed Opt 19:026005|
|Kainerstorfer, Jana M; Sassaroli, Angelo; Hallacoglu, Bertan et al. (2014) Practical steps for applying a new dynamic model to near-infrared spectroscopy measurements of hemodynamic oscillations and transient changes: implications for cerebrovascular and functional brain studies. Acad Radiol 21:185-96|
|Pierro, Michele L; Hallacoglu, Bertan; Sassaroli, Angelo et al. (2014) Validation of a novel hemodynamic model for coherent hemodynamics spectroscopy (CHS) and functional brain studies with fNIRS and fMRI. Neuroimage 85 Pt 1:222-33|
|Sassaroli, Angelo; Pifferi, Antonio; Contini, Davide et al. (2014) Forward solvers for photon migration in the presence of highly and totally absorbing objects embedded inside diffusive media. J Opt Soc Am A Opt Image Sci Vis 31:460-9|
|Martelli, Fabrizio; Pifferi, Antonio; Contini, Davide et al. (2013) Phantoms for diffuse optical imaging based on totally absorbing objects, part 1: Basic concepts. J Biomed Opt 18:066014|
|Kainerstorfer, Jana M; Yu, Yang; Weliwitigoda, Geethika et al. (2013) Depth discrimination in diffuse optical transmission imaging by planar scanning off-axis fibers: initial applications to optical mammography. PLoS One 8:e58510|
|Fantini, Sergio; Sassaroli, Angelo (2012) Near-infrared optical mammography for breast cancer detection with intrinsic contrast. Ann Biomed Eng 40:398-407|