Application of transillumination quotient for monitoring of the instantaneous width of the subarachnoid space

• Autorzy: Frydrychowski A. F. , Rojewski M. , Gumiński W. , Kaczmarek J. , Juzwa W.
• Języki publikacji: EN

Abstrakty

EN

The authors describe the application of the newly designed method of near-infrared transillumination-back scattering in monitoring of the instantaneous width of the subarachnoid space. Description is provided with the method of elimination of influence of blood circulation in the scalp on the signals recorder from individual sensors. This influence has been eliminated through application of two sensors located at different distances from the source of radiation. The quotient of the intensities of radiation received by the sensors-distal over proximal-referred to as the transillumination quotient, contains information on propagation of infrared radiation within the subarachnoid space. Mathematical background of this solution has been given. The method of near-infrared transillumination-back scattering allows for continuous non-invasive assessment of cerebrovascular pulsation through its direct effect-pulsatile changes in the width of the subarachnoid space. The authors present examples of recordings obtained in healthy volunteers.

Słowa kluczowe

EN

subarachnoid space; transillumination; quotient; cerebrovascular; pulsation

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2001
• Tom: Vol. 9, No. 4
• Strony: 403--411
• Opis fizyczny: Bibliogr. 24 poz., il.

Twórcy

autor

Frydrychowski A. F.

autor

Rojewski M.

autor

Gumiński W.

autor

Kaczmarek J.

autor

Juzwa W.

• Department of Physiology, Medical University of Gdańsk, 1 Dębinki Str., 80-211 Gdańsk, Poland,

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