| Zugriffsnummer | 34394 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Mechanically switchable solid inhomogeneous phantom for performance tests in diffuse imaging and spectroscopy |
| Autor(in); Institution |
Pifferi, Antonio; Politecnico di Milano–Dipartimento di Fisica, Milano, ITALY
Torricelli, Alessandro; Politecnico di Milano–Dipartimento di Fisica, Milano, ITALY
Cubeddu, Rinaldo; Politecnico di Milano–Dipartimento di Fisica, Milano, ITALY
Quarto, Giovanna; Politecnico di Milano–Dipartimento di Fisica, Milano, ITALY
Re, Rebecca; Politecnico di Milano–Dipartimento di Fisica, Milano, ITALY
Sekar, Sanathana K. V.; Politecnico di Milano–Dipartimento di Fisica, Milano, ITALY
Spinelli, Lorenzo; Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Milano, ITALY
Farina, Andrea; Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Milano, ITALY
Martelli, Fabrizio; Università degli Studi di Firenze, Dipartimento di Fisica e Astronomia, Firenze, ITALY
Wabnitz, Heidrun; 8.3, Biomedizinische Optik, PTB-Berlin
|
| Quelle/Jahr | Journal of Biomedical Optics: 20 (2015), 12, 1 - 10 |
| Artikelnummer | 121304 |
| ISSN | 1083-3668 |
| DOI | |
| Verlag | Bellingham, Wash.: SPIE |
| Freie Schlagworte | tissue-like phantoms ; diffuse optical imaging ; performance characterization ; diffuse optics |
| Zusammenfassung | A mechanically switchable solid inhomogeneous phantom simulating localized absorption changes was developed and characterized. The homogeneous host phantom was made of epoxy resin with black toner and titanium dioxide particles added as absorbing and scattering components, respectively. A cylindrical rod, movable along a hole in the block and made of the same material, has a black polyvinyl chloride cylinder embedded in its center. By varying the volume and position of the black inclusion, absorption perturbations can be generated over a large range of magnitudes. The phantom has been characterized by various time- domain diffuse optics instruments in terms of absorption and scattering spectra, transmittance images, and reflectance contrast. Addressing a major application of the phantom for performance characterization for functional near-infrared spectroscopy of the brain, the contrast was measured in reflectance mode while black cylinders of volumes from ≈20 mm3 to ≈270 mm3 were moved in lateral and depth directions, respectively. The new type of solid inhomogeneous phantom is expected to become a useful tool for routine quality check of clinical instruments or implementation of industrial standards provided an experimental characterization of the phantom is performed in advance. |
| Kostenfreier Zugang | Open Access Hybrid |
Zitierung
Pifferi, A., Torricelli, A., Cubeddu, R., Quarto, G., Re, R., Sekar, S. K. V., Spinelli, L., Farina, A., Martelli, F., & Wabnitz, H. (2015). Mechanically switchable solid inhomogeneous phantom for performance tests in diffuse imaging and spectroscopy. Journal of Biomedical Optics, 20(12), 1–10. https://doi.org/10.1117/1.jbo.20.12.121304