I'm currently collecting a large amount of blood flow data with the use of a Perimed Laser Doppler rig. The recording is pretty simple )15 minutes recorded baseline, 2 minutes occlusion, 7 minutes post occlusion. I'm looking to evaluate pre/post measures of the different oscillatory bands following an intervention. I've read a lot of excellent papers that utilized wavelet analysis to create a spectrogram of the relative oscillatory bands (and I'd love to follow suit), but can't find a good methods paper, or even a computer program to help me analyze my data. If anyone has a suggestion on relevant software or a good working guidebook, I would be hugely appreciative.
Thanks!
This is a good question.
There are very good introductory papers on this topic available from RG. See, e.g.:
https://www.researchgate.net/publication/5345558_Spectral_analysis_of_the_microcirculatory_laser_Doppler_signal_at_the_Hoku_acupuncture_point
https://www.researchgate.net/publication/291766298_Wavelet_analysis_of_the_Laser_Doppler_signal_to_assess_skin_perfusion
See, especially,
https://www.researchgate.net/publication/274712926_Skin_Temperature_Oscillation_Model_for_Assessing_Vasomotion_of_Microcirculation/figures?lo=1
Article Spectral analysis of the microcirculatory laser Doppler sign...
Conference Paper Wavelet analysis of the Laser Doppler signal to assess skin perfusion
Article Skin Temperature Oscillation Model for Assessing Vasomotion ...
Hello. The Mathworks (Matlab) file exchange is often a good place to find or request algorithm code. I'm sure they would have programs for wavelet and spectrogram analysis. I don't work for Mathworks :-)
Hi Cooper, sorry to resurrect this question but I wondered if you had any success with generating and/or using a MATLAB script or tool in your analysis of LDF signals for wavelet analysis/vasomotion? I have a vast amount of LDF data from some exercise studies I have performed and am considering accenting my heating protocol data with some vasomotion analysis. Cheers!
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