Comparison of 3D-printed phantoms for testing cerebral oximeter performance (Conference Presentation)

Ali Afshari; Rolf B. Saager; Xuewen Zhou; Pejman Ghassemi; Sandy Weininger; Jianting Wang; Anthony J. Durkin; Joshua Pfefer

doi:10.1117/12.2547515

9 March 2020 Comparison of 3D-printed phantoms for testing cerebral oximeter performance (Conference Presentation)

Ali Afshari, Rolf B. Saager, Xuewen Zhou, Pejman Ghassemi, Sandy Weininger, Jianting Wang, Anthony J. Durkin, Joshua Pfefer

Author Affiliations +

Proceedings Volume 11231, Design and Quality for Biomedical Technologies XIII; 112310R (2020) https://doi.org/10.1117/12.2547515
Event: SPIE BiOS, 2020, San Francisco, California, United States

Abstract

We have optimized our prior phantom-based test method for cerebral oximetry performance using a new 3D-printed cerebrovascular module (CVM). In addition, we have and added a surrogate for a thin perfused scalp layer to evaluate perfusion- related confounding factors. The new CVM’s optical properties better represented biological tissue and also incorporated a water-mimicking dye. The modular phantom also included biologically relevant scalp/skull and cerebrospinal fluid (CSF) layers. Performance testing of two commercially available clinical oximeters with the modified CVM over a range of oxygen saturation levels illustrates the utility of our solid phantom-based approach for standardized cerebral oximeter performance assessment.

Conference Presentation

Citation Download Citation

Ali Afshari, Rolf B. Saager, Xuewen Zhou, Pejman Ghassemi, Sandy Weininger, Jianting Wang, Anthony J. Durkin, and Joshua Pfefer "Comparison of 3D-printed phantoms for testing cerebral oximeter performance (Conference Presentation)", Proc. SPIE 11231, Design and Quality for Biomedical Technologies XIII, 112310R (9 March 2020); https://doi.org/10.1117/12.2547515

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KEYWORDS

Oximeters

Blood

Brain

Near infrared spectroscopy

Oximetry

Additive manufacturing

Custom fabrication

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