Optical measurement of blood sediment formation at high haematocrit

• Autorzy: Kowalińska E. , Górnicki A. , Grzegorzewski B.
• Języki publikacji: EN

Abstrakty

EN

In this paper we have presented the results of optical measurements concerning blood sediment formation. The intensity of the laser light transmitted through a blood sample has been measured and analysed. It is shown that the mechanism of blood sedimentation at high haematocrit is different from the mechanism of sedimentation at normal haematocrit. In blood samples with normal haematocrit three blood phases are formed during the sedimentation process: the well-known supernatant plasma, the phase of rouleaux formation and the phase of the so-called demixed blood. However, at high haematocrit only two phases of blood can be distinguished: the phase of supernatant plasma and the phase of demixed blood. Our study shows that the slow aggregation process at high haematocrit leads to the reorganisation of the demixed blood structure, while at normal haematocrit this reorganisation is not observed. When the reorganisation process is finished, the squeezing of the demixed blood begins. The results of our research demonstrate that the optical method is very useful in understanding the mechanism of the blood sedimentation process.

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2002
• Tom: Vol. 32, nr 4
• Strony: 701--708
• Opis fizyczny: bibliogr. 17 poz.

Twórcy

autor

Kowalińska E.

autor

Górnicki A.

autor

Grzegorzewski B.

• Department of Biophysics, The Ludwik Rydygier University of Medical Sciences, ul. Jagiellońska 13, 85-067 Bydgoszcz