Hybrid heterogeneous phantoms for biomedical applications: a demonstration to dosimetry validation

Author:

Ghauri M. DaniyalORCID,Šušnjar Stefan12ORCID,Guadagno Claudia Nunzia3,Bhattacharya Somdatta,Thomasson Björn1,Swartling Johannes1,Gautam RekhaORCID,Andersson-Engels Stefan34ORCID,Konugolu Venkata Sekar Sanathana3ORCID

Affiliation:

1. SpectraCure AB

2. Lund University

3. BioPixS Ltd – Biophotonics Standards

4. University College Cork

Abstract

Phantoms simultaneously mimicking anatomical and optical properties of real tissues can play a pivotal role for improving dosimetry algorithms. The aim of the paper is to design and develop a hybrid phantom model that builds up on the strengths of solid and liquid phantoms for mimicking various anatomical structures for prostate cancer photodynamic therapy (PDT) dosimetry validation. The model comprises of a photosensitizer-embedded gelatin lesion within a liquid Intralipid prostate shape that is surrounded by a solid silicone outer shell. The hybrid phantom was well characterized for optical properties. The final assembled phantom was also evaluated for fluorescence tomographic reconstruction in conjunction with SpectraCure’s IDOSE software. The developed model can lead to advancements in dosimetric evaluations. This would improve PDT outlook as a clinical treatment modality and boost phantom based standardization of biophotonic devices globally.

Funder

European Commission

Science Foundation Ireland

Irish Research eLibrary

Publisher

Optica Publishing Group

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