In vitro measurements of optical properties of porcine brain using a novel compact device
(2005) In Medical & Biological Engineering & Computing 43(5). p.658-666- Abstract
- Knowledge of the optical properties of tissues can be applied in numerous medical and scientific fields, including cancer diagnostics and therapy. There are many different ways of determining the optical properties of turbid media. The paper describes measurements of the optical properties of porcine brain tissue using novel instrumentation for simultaneous absorption and scattering characterisation of small turbid samples. Integrating sphere measurements are widely used as a reference method for determination of the optical properties of relatively thin turbid samples. However, this technique is associated with bulky equipment, complicated measuring techniques, interference compensation techniques and inconvenient sample handling. It is... (More)
- Knowledge of the optical properties of tissues can be applied in numerous medical and scientific fields, including cancer diagnostics and therapy. There are many different ways of determining the optical properties of turbid media. The paper describes measurements of the optical properties of porcine brain tissue using novel instrumentation for simultaneous absorption and scattering characterisation of small turbid samples. Integrating sphere measurements are widely used as a reference method for determination of the optical properties of relatively thin turbid samples. However, this technique is associated with bulky equipment, complicated measuring techniques, interference compensation techniques and inconvenient sample handling. It is believed that the sphere for some applications can be replaced by a new, compact device, called the combined angular and spatially resolved head sensor, to measure the optical properties of thin turbid samples. The results compare very well with data obtained with an integrating sphere for well-defined samples. The instrument was shown to be accurate to within 12% for mu(a) and 1% for mu'(s) in measurements of intralipid-ink samples. The corresponding variations of data were 17% and 2%, respectively. The reduced scattering coefficient for porcine white matter was measured to be 100 cm(-1) at 633 nm, and the value for coagulated brain tissue was 65 cm(-1). The corresponding absorption coefficients were 2 and 3 cm(-1), respectively. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/210198
- author
- Yavari, Nazila LU ; Dam, JS ; Antonsson, J ; Wardell, K and Andersson-Engels, Stefan LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- porcine brain tissue, CASH sensor, integrating sphere, optical properties, turbid media, scattering
- in
- Medical & Biological Engineering & Computing
- volume
- 43
- issue
- 5
- pages
- 658 - 666
- publisher
- Springer
- external identifiers
-
- pmid:16411639
- wos:000234262300016
- scopus:29244462497
- ISSN
- 0140-0118
- language
- English
- LU publication?
- yes
- id
- bba3cb84-0350-41fe-a51b-3305f2cd9dae (old id 210198)
- date added to LUP
- 2016-04-01 15:22:28
- date last changed
- 2022-01-28 04:59:46
@article{bba3cb84-0350-41fe-a51b-3305f2cd9dae,
abstract = {{Knowledge of the optical properties of tissues can be applied in numerous medical and scientific fields, including cancer diagnostics and therapy. There are many different ways of determining the optical properties of turbid media. The paper describes measurements of the optical properties of porcine brain tissue using novel instrumentation for simultaneous absorption and scattering characterisation of small turbid samples. Integrating sphere measurements are widely used as a reference method for determination of the optical properties of relatively thin turbid samples. However, this technique is associated with bulky equipment, complicated measuring techniques, interference compensation techniques and inconvenient sample handling. It is believed that the sphere for some applications can be replaced by a new, compact device, called the combined angular and spatially resolved head sensor, to measure the optical properties of thin turbid samples. The results compare very well with data obtained with an integrating sphere for well-defined samples. The instrument was shown to be accurate to within 12% for mu(a) and 1% for mu'(s) in measurements of intralipid-ink samples. The corresponding variations of data were 17% and 2%, respectively. The reduced scattering coefficient for porcine white matter was measured to be 100 cm(-1) at 633 nm, and the value for coagulated brain tissue was 65 cm(-1). The corresponding absorption coefficients were 2 and 3 cm(-1), respectively.}},
author = {{Yavari, Nazila and Dam, JS and Antonsson, J and Wardell, K and Andersson-Engels, Stefan}},
issn = {{0140-0118}},
keywords = {{porcine brain tissue; CASH sensor; integrating sphere; optical properties; turbid media; scattering}},
language = {{eng}},
number = {{5}},
pages = {{658--666}},
publisher = {{Springer}},
series = {{Medical & Biological Engineering & Computing}},
title = {{In vitro measurements of optical properties of porcine brain using a novel compact device}},
url = {{https://lup.lub.lu.se/search/files/4378582/2366218.pdf}},
volume = {{43}},
year = {{2005}},
}