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The authors present observations on influences of hesd movements and forced respiration on the magnitudes of signals acquired with the new, non-invasive technique of near-infrared transillumination/back scattering sounding NIR-T/BSS which signals depend upon and reflect the instantaneous width of the subarachnoid space and the amplitude of its pulsation of cerebrovascular origin. For elimination of influence of the changing volume of blood in superficial vessels of skin in the frontal region, each experiment was performed twice- without and with simultaneous non-invasive exclusion of blood flow in that region through skin compression. It was observed that the recorded changes in the NIR-T/BSS signals reflecting those in the instantaneous width of the subarachnoid space and its cerebrovascular pulsation follow the time-pattern of the evoking factor, i. e. either the rhythm of the head movements or the forced respiration, which can be demonstrated on the basis of spectral analysis of the acquired transillumination signals.
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Czasopismo
Rocznik
Tom
Strony
151--157
Opis fizyczny
Bibliogr. 17 poz
Twórcy
autor
autor
autor
- Departament of Physiology, Medical University of Gdańsk, 1 Dębinki Str., 80-211 Gdańsk, Poland, afryd@amedec.amg.gda.pl
Bibliografia
- 1. R. C. Banagale, "History of transillumination", in Pediatric Transillumination, Chap. 1, pp. 3-14, edited by Steven M. Donn, Lawrence R. Kuhns, Eds., Year Book Medical Publishers, Inc., Chicago-London, 1983.
- 2. L. Calliauw, "The value of transillumination of the skull in neurological examination of neonates and infants", Acta Neurochir. 10, 75-91 (1961).
- 3. D. B. Shurtleff, "Transillumination of skull in infants and children", Am. J. Dis. Child. 107, 1424 (1964).
- 4. M. Cope and D. T. Delpy, "System for long-term measurement of cerebral blood and tissue oxygenation on newborn infants by near infra-red transillumination", Med. Biol. Eng. Comput. 26, 289-94 (1988).
- 5. Ph. P. Dodge and Ph. Porter, "Demonstration of intracranial pathology by transillumination", Arch. Neurol. 5, 594 (1961).
- 6. R. Mazur, E. Mazur, J. Stołyhwo, and R. Melis, "An apparatus for detecting intracranial fluid development", Med. Child. Neurol. 9, (1967).
- 7. R. Mazur, "Transillumination of the skull in the diagnosis of intracranial disease in children up to 3 years", Develop. Med. Child Neurol. 7, 634 (1965).
- 8. P. Rolfe, Y. A. B. D. Wickramasinghe, and M. Thorniley, "The potential of near infrared spectroscopy for detection of fetal cerebral hypoxia", Eur. J. Obs. & Gynae. and Reproduction Biology 42 24-28 (1991).
- 9. J. M. Rozovski, "Cranial transillumination in early and evere malnutrition", Br. J. Nutr. 25, 107-111 (1971).
- 10. Z. Skalski, A. Frydrychowski, and R. Mazur, "Encephalovolumeter IR. Method and instrumentation for assessment of changes in intracranial homeostasis", in Cerebral Stroke, pp. 181-186, edited by R. Mazur, Bydgoszcz Scientific Society (Bydgoskie Towarzystwo Naukowe), Bydgoszcz, 1986.
- 11. F. Frydrychowski, J. Kaczmarek, W. Juzwa, M. Rojewski, J. Pluciński, W. Gumiński, Cz. Kwiatkowski, P. Lass, and T. Bandurski, "Near-infrared transillumination (NIR-TI) - a new non-invasive tool for exploration of intracranial homeostasis and monitoring of its impairments", Biocybernetics and Biomedical Engineering 19, 99-108 (1999).
- 12. F. Frydrychowski, M. Rojewski, W. Gumiński, J. Kaczmarek, and W. Juzwa, "Near infrared transillumination-back scattering (NIRT-BS) - a new method for non-invasive monitoring of changes in width of subarachnoid space and magnitude of cerebrovascular pulsation", Opto-Electron. Rev. 9, 397-402 (2001).
- 13. F. Frydrychowski, M. Rojewski, W. Gumiński, J. Kaczmarek, and W. Juzwa, "Application of transillumination quotient for monitoring of the instantaneous width of the subarachnoid space", Opto-Electron. Rev. 9, 403-411 (2001).
- 14. J. Pluciński, A. F. Frydrychowski, J. Kaczmarek, and W. Juzwa, "Theoretical foundations for noninvasive measurement of variations in the width of the subarachnoid space", J. Biomedical Optics 5, 201-299 (2000).
- 15. J. Pluciński and A. F. Frydrychowski, "Verification with numeric modelling of optical measurement of changes in the width of the subarachnoid space", Biocybernetics and Biomedical Engineering 19, 111-126 (1999).
- 16. S. E. Maier, C. J. Hardy, and F. A. Jolesz, "Brain and cerebrospinal fluid motion: real-time quantification with M-mode MR imaging", Radiology 193, 477-483 (1994).
- 17. M. Firbank, E. Okada, and D. T. Delpy, "A theoretical study of the signal contribution of regions of the adult head to near-infrared spectroscopy studiesd of visual-evoked responses", Neuroimage 8, 69-78 (1998).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BWA1-0002-0083