The illustrations below show the three methods of measuring the f waves used in the study. Pilot TLS™ automatically calculates method C

Method A – Measurement of the mean height of f waves

Method B – Measurement of the height of the highest f wave

Method C – Measurement of the widest difference between maximal positive peak and maximal negative peak.


1 Maria Calabrese M, Montini L, Arlotta G, La Greca A, Biasucci DG, Bevilacqua F,
Antoniucci E, Scapigliati A, Cavaliere C, Pittiruti, M A modified intracavitary electrocardiographic method for detecting the location of the tip of central venous catheters in atrial fibrillation patients. Journal of Vascular Access, December 2018