Nonlinear analysis of biomagnetic signals recorded from uterine myomas.
OBJECTIVE
To determine if there is any non-linearity in the biomagnetic recordings of uterine myomas and to find any differences that may be present in the mechanisms underlying their signal dynamics.


METHODS
Twenty-four women were included in the study. Sixteen of them were characterised with large myomas and 8 with small ones. Uterine artery waveform measurements were evaluated by use of Pulsatility Index (PI) (normal value PI<1.45).


RESULTS
Applying nonlinear analysis to the biomagnetic signals of the uterine myomas, we observed a clear saturation value for the group of large ones (mean = 11.35 +/- 1.49) and no saturation for the small ones.


CONCLUSIONS
The comparison of the saturation values in the biomagnetic recordings of large and small myomas may be a valuable tool in the evaluation of functional changes in their dynamic behavior.
Kotini
Athanasia
A
Lab of Medical Physics and Department of Obstetrics and Gynaecology, Medical School, Democritus University of Thrace, University Campus, Alexandroupolis, Greece. akotin@axd.forthnet.gr
Anastasiadis
Achilleas N
AN
Anninos
Photios
P
Koutlaki
Nikoleta
N
Anastasiadis
Panagiotis
P