Development of a 3-dimensional tissue lung phantom of a preterm infant for optical measurements of oxygen—Laser-detector position considerations
(2018) In Journal of Biophotonics 11(3).- Abstract
There is a need to further improve the clinical care of our most vulnerable patients—preterm infants. Novel diagnostic and treatment tools facilitate such advances. Here, we evaluate a potential percutaneous optical monitoring tool to assess the oxygen and water vapor content in the lungs of preterm babies. The aim is to prepare for further clinical studies by gaining a detailed understanding of how the measured light intensity and gas absorption signal behave for different possible geometries of light delivery and receiver. Such an experimental evaluation is conducted for the first time utilizing a specially developed 3-dimensional-printed optical phantom based on a geometry model obtained from computer tomography images of the thorax... (More)
There is a need to further improve the clinical care of our most vulnerable patients—preterm infants. Novel diagnostic and treatment tools facilitate such advances. Here, we evaluate a potential percutaneous optical monitoring tool to assess the oxygen and water vapor content in the lungs of preterm babies. The aim is to prepare for further clinical studies by gaining a detailed understanding of how the measured light intensity and gas absorption signal behave for different possible geometries of light delivery and receiver. Such an experimental evaluation is conducted for the first time utilizing a specially developed 3-dimensional-printed optical phantom based on a geometry model obtained from computer tomography images of the thorax (chest) of a 1700-g premature infant. The measurements yield reliable signals for source–detector distances up to about 50 mm, with stronger gas absorption signals at long separations and positions related to the lower part of the lung, consistent with a larger relative volume of this. The limitations of this study include the omission of scattering tissue within the lungs and that similar optical properties are used for the wavelengths employed for the 2 gases, yielding no indication on the optimal wavelength pair to use.
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- author
- Larsson, Jim LU ; Liao, Peilang ; Lundin, Patrik LU ; Krite Svanberg, Emilie LU ; Swartling, Johannes LU ; Lewander Xu, Märta ; Bood, Joakim LU and Andersson-Engels, Stefan LU
- organization
- publishing date
- 2018-03-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- premature infants, respiratory distress syndrome, tissue phantom, tunable diode laser absorption spectroscopy
- in
- Journal of Biophotonics
- volume
- 11
- issue
- 3
- article number
- e201700097
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- pmid:28816029
- scopus:85040343860
- ISSN
- 1864-063X
- DOI
- 10.1002/jbio.201700097
- language
- English
- LU publication?
- yes
- id
- 515a92da-4117-43f4-9bf6-9ce5b0f53c1c
- date added to LUP
- 2018-03-28 10:54:18
- date last changed
- 2024-04-15 04:31:27
@article{515a92da-4117-43f4-9bf6-9ce5b0f53c1c,
abstract = {{<p>There is a need to further improve the clinical care of our most vulnerable patients—preterm infants. Novel diagnostic and treatment tools facilitate such advances. Here, we evaluate a potential percutaneous optical monitoring tool to assess the oxygen and water vapor content in the lungs of preterm babies. The aim is to prepare for further clinical studies by gaining a detailed understanding of how the measured light intensity and gas absorption signal behave for different possible geometries of light delivery and receiver. Such an experimental evaluation is conducted for the first time utilizing a specially developed 3-dimensional-printed optical phantom based on a geometry model obtained from computer tomography images of the thorax (chest) of a 1700-g premature infant. The measurements yield reliable signals for source–detector distances up to about 50 mm, with stronger gas absorption signals at long separations and positions related to the lower part of the lung, consistent with a larger relative volume of this. The limitations of this study include the omission of scattering tissue within the lungs and that similar optical properties are used for the wavelengths employed for the 2 gases, yielding no indication on the optimal wavelength pair to use.</p>}},
author = {{Larsson, Jim and Liao, Peilang and Lundin, Patrik and Krite Svanberg, Emilie and Swartling, Johannes and Lewander Xu, Märta and Bood, Joakim and Andersson-Engels, Stefan}},
issn = {{1864-063X}},
keywords = {{premature infants; respiratory distress syndrome; tissue phantom; tunable diode laser absorption spectroscopy}},
language = {{eng}},
month = {{03}},
number = {{3}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Journal of Biophotonics}},
title = {{Development of a 3-dimensional tissue lung phantom of a preterm infant for optical measurements of oxygen—Laser-detector position considerations}},
url = {{http://dx.doi.org/10.1002/jbio.201700097}},
doi = {{10.1002/jbio.201700097}},
volume = {{11}},
year = {{2018}},
}