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In vitro measurements of optical properties of porcine brain using a novel compact device

Yavari, Nazila LU ; Dam, JS; Antonsson, J; Wardell, K and Andersson-Engels, Stefan LU (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)
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author
organization
publishing date
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
2007-08-15 16:35:57
date last changed
2017-09-10 04:23:52
@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},
  keyword      = {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},
  volume       = {43},
  year         = {2005},
}