Asinsrites pulsāciju biosignālu optiskie mērījumi un to analīze

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RESEARCH PRODUCT

Asinsrites pulsāciju biosignālu optiskie mērījumi un to analīze

Andris Grabovskis

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Darbā veikti divi savstarpēji saistīti pētījumi ar mērķi pilnveidot asinsrites optiskās diagnostikas metodes, reģistrējot un analizējot fotopletizmogrāfisko (PPG) signālu laika un formas.parametrus. Izstrādāta metodika un veikti klīniskie mērījumi statistiski nozīmīgā (128 personas) kardiovaskulāro slimību pacientu un veselu personu (20 personas) grupās, katrā sirdsdarbības ciklā nosakot pulsa cikla ilgumu, pulsa viļņa izplatīšanās un atstarotā viļņa aizkaves laikus, augmentācijas indeksu un refleksijas indeksu. Analizējot šo parametru korelācijas, parādīta iespēja pēc PPG signālu formām atšķirt slimu un veselas personu grupas. Veikti pirmie pētījumi, lai novērtētu asins tilpuma plūsmas ietekmi uz PPG signāla AC komponentes formu. Atslēgas vārdi: fotopletizmogrāfija, neinvazīva optiskā diagnostika, biosignālu apstrāde, asinsrites tilpuma plūsma

year	journal	country	edition	language
2008-01-01

https://dspace.lu.lv/dspace/handle/7/25644

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