Literature DB >> 2335137

Measurement of optical path length for cerebral near-infrared spectroscopy in newborn infants.

J S Wyatt1, M Cope, D T Delpy, P van der Zee, S Arridge, A D Edwards, E O Reynolds.   

Abstract

The time taken for an extremely short pulse of near-infrared laser light to traverse the heads of 6 preterm infants was measured after death. The values obtained were used to calculate a differential path length factor (DPF), defined as the mean distance travelled by the photons divided by the distance between the points where light entered and left the head. The DPF was found to be 4.39 +/- 0.28. Knowledge of this factor will permit accurate quantitative measurements to be made by near-infrared spectroscopy of a range of indices of cerebral oxygenation and haemodynamics in live infants.

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Year:  1990        PMID： 2335137     DOI： 10.1159/000111843

Source DB:  PubMed          Journal:  Dev Neurosci        ISSN： 0378-5866            Impact factor:   2.984


  19 in total

1.  A comparison of pulse oximetry and near infrared spectroscopy (NIRS) in the detection of hypoxaemia occurring with pauses in nasal airflow in neonates.

Authors:  S L Watkin; S A Spencer; P W Dimmock; Y A Wickramasinghe; P Rolfe
Journal:  J Clin Monit Comput       Date:  1999-12       Impact factor: 2.502

Review 2.  The light still shines, but not that brightly? The current status of perinatal near infrared spectroscopy.

Authors:  S E Nicklin; I A-A Hassan; Y A Wickramasinghe; S A Spencer
Journal:  Arch Dis Child Fetal Neonatal Ed       Date:  2003-07       Impact factor: 5.747

3.  Neonatal hemodynamic response to visual cortex activity: high-density near-infrared spectroscopy study.

Authors:  Steve M Liao; Nick M Gregg; Brian R White; Benjamin W Zeff; Katelin A Bjerkaas; Terrie E Inder; Joseph P Culver
Journal:  J Biomed Opt       Date:  2010 Mar-Apr       Impact factor: 3.170

Review 4.  Cerebral oxygen monitoring with near infrared spectroscopy: clinical application to neonates.

Authors:  J E Brazy
Journal:  J Clin Monit       Date:  1991-10

5.  [Evaluation of cerebral circulation during cardiopulmonary bypass using near-infrared spectroscopy].

Authors:  T Ohata; Y Sawa; S Ohtake; M Nishimura; N Hirata; K Kagisaki; S Taketani; T Yamaguchi; H Matsuda
Journal:  Jpn J Thorac Cardiovasc Surg       Date:  1998-07

6.  Optimising the methodology of calculating the cerebral blood flow of newborn infants from near infra-red spectrophotometry data.

Authors:  M Wolf; N Brun; G Greisen; M Keel; K von Siebenthal; H Bucher
Journal:  Med Biol Eng Comput       Date:  1996-05       Impact factor: 2.602

Review 7.  Cerebral oxygenation and haemodynamics in the foetus and newborn infant.

Authors:  J S Wyatt
Journal:  Philos Trans R Soc Lond B Biol Sci       Date:  1997-06-29       Impact factor: 6.237

8.  Non-invasive monitoring of brain oxygen sufficiency on cardiopulmonary bypass patients by near-infra-red laser spectrophotometry.

Authors:  M Tamura; T Tamura
Journal:  Med Biol Eng Comput       Date:  1994-07       Impact factor: 2.602

9.  Cerebral haemodynamics in preterm infants after exposure to dexamethasone.

Authors:  A Pellicer; F Gayá; T A Stiris; J Quero; F Cabañas
Journal:  Arch Dis Child Fetal Neonatal Ed       Date:  1998-09       Impact factor: 5.747

10.  Effect of aminophylline on cerebral haemodynamics and oxidative metabolism in premature infants.

Authors:  H U Bucher; M Wolf; M Keel; K von Siebenthal; G Duc
Journal:  Eur J Pediatr       Date:  1994-02       Impact factor: 3.183
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