|
This article is cited in 5 scientific papers (total in 5 papers)
Laser biophotonics
Calculation of the weighting functions for the reconstruction of absorbing inhomogeneities in tissue by time-resolved optical projections
A. B. Konovalov, V. V. Vlasov Russian Federal Nuclear Center E. I. Zababakhin All-Russian Scientific Research Institute of Technical Physics, Snezhinsk
Abstract:
We report a new method for determining the weighting functions to reconstruct absorbing inhomogeneities in tissue by perturbation time-domain diffuse optical tomography using the transmission geometry of a flat layer. The method is based on an analytical approach to the calculation of the weighting functions for a semi-infinite scattering medium and on the use of the original method of an equivalent inverse source in order to obtain weight distributions for the flat layer geometry. The correctness of the proposed method of the weighting function calculation is evaluated by a numerical experiment on the reconstruction of absorbing inhomogeneities. It is shown that the perturbation reconstruction model based on the proposed weighting function calculation method allows the inhomogeneities smaller than 0.3 cm and ~0.4 cm, located respectively in the transverse and longitudinal directions to the probe light direction, to be resolved in the centre of an 8-cm-thick object.
Keywords:
diffuse optical tomography, perturbation reconstruction model, weighting function, absorbing inhomogeneity, time-resolved optical projection, transverse and longitudinal spatial resolution.
Received: 16.03.2014 Revised: 17.05.2014
Citation:
A. B. Konovalov, V. V. Vlasov, “Calculation of the weighting functions for the reconstruction of absorbing inhomogeneities in tissue by time-resolved optical projections”, Kvantovaya Elektronika, 44:8 (2014), 719–725 [Quantum Electron., 44:8 (2014), 719–725]
Linking options:
https://www.mathnet.ru/eng/qe16015 https://www.mathnet.ru/eng/qe/v44/i8/p719
|
Statistics & downloads: |
Abstract page: | 254 | Full-text PDF : | 71 | References: | 47 | First page: | 18 |
|