massimowrivolta / prsa

Phase-Rectified Signal Averaging

Phase-Rectified Signal Averaging (PRSA)

This repository contains a Matlab implementation of the Phase-Rectified Signal Averaging (PRSA) technique in both numerical and theoretical forms.

Each Matlab function reports an example that can be run immediately. Just type:

• help function_name
• select the example listed in the EXAMPLE section
• run the code in the console

Script files (s_*.m) can be also run immediately:

• s_filterResponse.m computes the frequency response of the average capacity for various settings of T and s parameters.

• s_UCO.m generates a random RR series under periodic umbilical cord occlusion (UCO)

When using this resource, please cite the original publication (or one of the relevant below):

@Article{RivoltaTBME2019,
	author = {Rivolta, M. W. and Stampalija, T. and Frasch, M. G. and Sassi, R.},
	title = {Theoretical Value of Deceleration Capacity Points to Deceleration Reserve of Fetal Heart Rate},
	journal = {IEEE Trans Biomed Eng},
	volume={67}, 
	number={4}, 
	pages={1176-1185}, 
	doi={10.1109/TBME.2019.2932808}
	}

The link to the publication is the following: https://www.ncbi.nlm.nih.gov/pubmed/31395532

Other relevant publications are:

• T. Stampalija, D. Casati, L. Monasta, R. Sassi, M. W. Rivolta, M. L. Muggiasca, A. Bauer and E. Ferrazzi, "Brain sparing effect in growth-restricted fetuses is associated with decreased cardiac acceleration and deceleration capacities: a case-control study", BJOG, vol. 123, pp. 1947–1954, 2016. ISSN: 1471-0528. DOI:10.1111/1471-0528.13607
• T. Stampalija, D. Casati, M. Montico, R. Sassi, M. W. Rivolta, V. Maggi, A. Bauer and E. Ferrazzi, "Parameters influence on acceleration and deceleration capacity based on trans-abdominal ECG in early fetal growth restriction at different gestational age epochs", Eur J Obstet Gynecol Reprod Biol, vol. 188, pp. 104-112, 2015. ISSN: 0301-2115. DOI:10.1016/j.ejogrb.2015.03.003
• M. W. Rivolta, T. Stampalija, D. Casati, B. S. Richardson, M. G. Ross, M. G. Frasch, A. Bauer, E. Ferrazzi and R. Sassi, "Acceleration and deceleration capacity of fetal heart rate in an in-vivo sheep model", PLoS One, vol. 9, pp. e104193, 2014. ISSN: 1932-6203. DOI:10.1371/journal.pone.0104193
• M. W. Rivolta, T. Stampalija, D. Casati, E. Ferrazzi, A. Bauer and R. Sassi, "A Methodological Assessment of Phase-Rectified Signal Averaging through Simulated Beat-to-Beat Interval Time Series", Comput Cardiol, vol. 41, pp. 601-604, 2014. ISSN: 2325-8861. ISBN: 978-1-4799-4346-3

Massimo Walter Rivolta, PhD (https://homes.di.unimi.it/rivolta/)