We propose a simple and reliable solid phantom for mimicking localized absorption changes within a diusive medium. The phantom is based on the Equivalence Relation stating that any realistic absorption inhomogeneity can be mimicked by a totally absorbing sphere of adequate volume. Applying this concept, we constructed a solid phantom holding a movable black inclusion to be positioned beneath the source-detector pair (perturbed case) or far from it (unperturbed case). Dierent absorption perturbations can be mimicked by changing the volume and the position of the black object both in transmittance and reflectance conguration. Time-resolved measurements of transmittance images and a lateral reflectance scan are presented.

Solid switchable phantom for diffuse optical imaging

PIFFERI, ANTONIO GIOVANNI;TORRICELLI, ALESSANDRO;CUBEDDU, RINALDO;QUARTO, GIOVANNA;RE, REBECCA;KONUGOLU VENKATA SEKAR, SANATHANA;SPINELLI, LORENZO;FARINA, ANDREA;
2015

Abstract

We propose a simple and reliable solid phantom for mimicking localized absorption changes within a diusive medium. The phantom is based on the Equivalence Relation stating that any realistic absorption inhomogeneity can be mimicked by a totally absorbing sphere of adequate volume. Applying this concept, we constructed a solid phantom holding a movable black inclusion to be positioned beneath the source-detector pair (perturbed case) or far from it (unperturbed case). Dierent absorption perturbations can be mimicked by changing the volume and the position of the black object both in transmittance and reflectance conguration. Time-resolved measurements of transmittance images and a lateral reflectance scan are presented.
DESIGN AND PERFORMANCE VALIDATION OF PHANTOMS USED IN CONJUNCTION WITH OPTICAL MEASUREMENT OF TISSUE VII
9781628414158
9781628414158
absorption; diuse optics; optical clinical instrumentation; phantom; scattering; time-resolved; Atomic and Molecular Physics, and Optics; Electronic, Optical and Magnetic Materials; Biomaterials; Radiology, Nuclear Medicine and Imaging
File in questo prodotto:
File Dimensione Formato  
9f70d27a-86c5-4dc0-8432-6aa257da2a23.pdf

accesso aperto

Descrizione: Articolo principale
: Post-Print (DRAFT o Author’s Accepted Manuscript-AAM)
Dimensione 1.06 MB
Formato Adobe PDF
1.06 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/983540
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact