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/)

prsa's Issues

Code License

Hi,

Thank you for making these functions publicly available.
I want to make a python port of your functions but without a specified license, I am unable to do so.

Would you mind adding a license to the code, so that it is clear as to who can use the code and under what conditions?.
If you want to make the code open source you can add any of the popular open-source licenses such as Apache 2.0, MIT, GPL, etc.

Thank you very much for your time!