Open AccessHidden stage of intracranial hemorrhage in newborn rats studied with laser speckle contrast imaging and wavelets
Author(s) -
А. Н. Павлов,
Arkady S. Abdurashitov,
О. Н. Павлова,
Valery V. Tuchin,
Olga A. Sindeeva,
Sergey S. Sindeev,
Oxana Semyachkina-Glushkovskaya
Publication year - 2015
Publication title -
journal of innovative optical health sciences/journal of innovation in optical health science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 24
eISSN - 1793-5458
pISSN - 1793-7205
DOI - 10.1142/s1793545815500418
Subject(s) - wavelet , speckle pattern , wavelet transform , blood flow , contrast (vision) , medicine , radiology , optics , artificial intelligence , physics , computer science
Using the laser speckle contrast imaging and wavelet-based analyses, we investigate a latent (a "hidden") stage of the development of intracranial hemorrhages (ICHs) in newborn rats. We apply two measures based on the continuous wavelet-transform of blood flow velocity in the sagittal sinus, namely, the spectral energy in distinct frequency ranges and a multiscality degree characterizing complexity of experimental data. We show that the wavelet-based multifractal formalism reveals changes in the cerebrovascular blood flow at the development of ICH