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Proceedings Paper

Changes in the cerebral blood flow in newborn rats assessed by LSCI and DOCT before and after the hemorrhagic stroke
Author(s): O. V. Semyachkina-Glushkovskaya; V. V. Lychagov; A. S. Abdurashitov; O. V. Sindeeva; S. S. Sindeev; E. M. Zinchenko; E. I. Kajbeleva; A. N. Pavlov; M. Kassim; V. V. Tuchin
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Paper Abstract

The incidence of perinatal hemorrhagic stroke (HS) is very similar to that in the elderly and produces a significant morbidity and long-term neurologic and cognitive deficits. There is strong evidence that cerebral blood flow (CBF) abnormalities make considerable contribution to HS development. However, the mechanisms responsible for pathological changes in CBF in infants with HS are not established. Therefore, quantitative assessment of CBF may significantly advance the understanding of the nature of neonatal stroke. The aim of this investigation was to determine the particularities of alterations in macro- microcirculation in the brain of newborn rats in the different stages of stress-related development of HS using three-dimensional Doppler optical coherence tomography (DOCT) and laser speckle contrast imaging (LSCI).Our results show that cerebral veins are more sensitive to harmful effect of stress compared with microcirculatory vessels. Stress-induced progressive dilation of cerebral veins with the fall of blood flow velocity precedes HS while pathological changes in microcirculatory vessels are accompanied by development of HS. The further detailed study of cerebral venous and microcirculatory circulation would be a significant advance in development of prognostic criteria for a HS risk during the first days after birthday.

Paper Details

Date Published: 10 March 2015
PDF: 6 pages
Proc. SPIE 9305, Optical Techniques in Neurosurgery, Neurophotonics, and Optogenetics II, 93051D (10 March 2015); doi: 10.1117/12.2078170
Show Author Affiliations
O. V. Semyachkina-Glushkovskaya, Saratov State Univ. (Russian Federation)
V. V. Lychagov, Saratov State Univ. (Russian Federation)
A. S. Abdurashitov, Saratov State Univ. (Russian Federation)
O. V. Sindeeva, Saratov State Univ. (Russian Federation)
S. S. Sindeev, Saratov State Univ. (Russian Federation)
E. M. Zinchenko, Saratov State Univ. (Russian Federation)
E. I. Kajbeleva, Saratov State Univ. (Russian Federation)
A. N. Pavlov, Saratov State Univ. (Russian Federation)
M. Kassim, Saratov State Univ. (Russian Federation)
V. V. Tuchin, Saratov State Univ. (Russian Federation)
Tomsk State Univ. (Russian Federation)

Published in SPIE Proceedings Vol. 9305:
Optical Techniques in Neurosurgery, Neurophotonics, and Optogenetics II
Henry Hirschberg M.D.; E. Duco Jansen; Samarendra K. Mohanty; Nitish V. Thakor; Qingming Luo; Steen J. Madsen, Editor(s)

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