| Zugriffsnummer | 35706 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Characterization of homogeneous tissue phantoms for performance tests in diffuse optics |
| Autor(in); Institution |
Wabnitz, Heidrun; 8.3, Biomedizinische Optik, PTB-Berlin
Taubert, Richard Dieter; 7.3, Detektorradiometrie und Strahlungsthermometrie, PTB-Berlin
Funane, Tsukasa; Hitachi Ltd., Central Research Laboratory, Hatoyama, JAPAN
Kiguchi, Masashi; Hitachi Ltd., Central Research Laboratory, Hatoyama, JAPAN
Eda, Hideo; The Graduate School for the Creation of New Photonics Industries, Hamamatsu City, JAPAN
Pifferi, Antonio; Politecnico di Milano–Dipartimento di Fisica, Milano, ITALY
Torricelli, Alessandro; Politecnico di Milano–Dipartimento di Fisica, Milano, ITALY
Macdonald, Rainer; 8.3, Biomedizinische Optik, PTB-Berlin
|
| Quelle/Jahr | Design and Quality for Biomedical Technologies IX:(2016) |
| Schriftenreihe | Proceedings of SPIE: 9700 |
| Herausgeber(in) |
Raghavachari, Ramesh
Liang, Rongguang
|
| ISSN | 0277-786X |
| ISBN | 978-1-6284-1934-4 |
| DOI | |
| Verlag | Bellingham, Wash.: SPIE |
| Konferenzangaben | Design and Quality for Biomedical Technologies IX, in: Biomedical Optics (SPIE Photonics West), San Francisco, 13-18, February, 2016, USA |
| Freie Schlagworte | tissue-like phantoms ; performance characterization ; time-domain diffuse optical spectroscopy ; functional near-infrared spectroscopy ; standardization |
| Zusammenfassung | Solid homogeneous turbid phantoms can be employed to mimic the attenuation and angular distribution of light emerging from tissue, e.g., to assess the responsivity of the detection system of diffuse optics instrumentation and to support standardized performance tests of functional near-infrared spectroscopy devices. We present three methods to quantify the wavelength-dependent diffuse transmittance, relying on (1) measurement of radiance exiting the phantom by a detector far from the exit aperture, (2) simple recording of radiance by a power meter close to the exit aperture and correction for the finite distance between phantom surface and detector, (3) determination of the reduced scattering and absorption coefficients by time-resolved diffuse transmittance measurements and forward calculation of the time-integrated diffuse transmittance based on the diffusion model. The implications of the different approximations related to these approaches are discussed. The various methods were applied to characterize solid slab phantoms, and the results were compared. Specifically, for an epoxy-resin based phantom having a thickness of 2 cm, a reduced scattering coefficient of about 0.5/mm and an absorption coefficient of about 0.01/mm, the diffuse transmittance values obtained by the three different methods were found to agree within about 10%. |
Zitierung
Wabnitz, H., Taubert, R. D., Funane, T., Kiguchi, M., Eda, H., Pifferi, A., Torricelli, A., & Macdonald, R. (2016). Characterization of homogeneous tissue phantoms for performance tests in diffuse optics. Design and Quality for Biomedical Technologies IX, in: Biomedical Optics (SPIE Photonics West), San Francisco, 13-18, February, 2016, USA. https://doi.org/10.1117/12.2209038