title: Using an inertial navigation algorithm and accelerometer to monitor chest compression depth during cardiopulmonary resuscitation.
abstract: We present an original method using a low cost accelerometer and a Kalman-filter based algorithm to monitor cardiopulmonary resuscitation chest compressions (CC) depth. A three-axis accelerometer connected to a computer was used during CC. A Kalman filter was used to retrieve speed and position from acceleration data. We first tested the algorithm for its accuracy and stability on surrogate data. The device was implemented for CC performed on a manikin. Different accelerometer locations were tested. We used a classical inertial navigation algorithm to reconstruct CPR depth and frequency. The device was found accurate enough to monitor CPR depth and its stability was checked for half an hour without any drift. Average error on displacement was ±0.5mm. We showed that depth measurement was dependent on the device location on the patient or the rescuer. The accuracy and stability of this small low-cost accelerometer coupled to a Kalman-filter based algorithm to reconstruct CC depth and frequency, was found well adapted and could be easily implemented.
authors.affiliation: Aix Marseille Université, IFSTTAR, LBA UMR_T 24, 13916 Marseille, France; Réanimation Polyvalente, (Intensive Care Unit), SAR 1, Hôpital de la Timone-(La Timone teaching hospital), 264 rue Saint-Pierre, Marseille 13005, France. Electronic address: salah.boussen@ifsttar.fr.
authors.forename: Salah
authors.initials: S
authors.lastname: Boussen
authors.affiliation: Aix Marseille Université, IFSTTAR, LBA UMR_T 24, 13916 Marseille, France.
authors.forename: Harold
authors.initials: H
authors.lastname: Ibouanga-Kipoutou
authors.affiliation: SAMU 13 (EMS 13), RUSH Departement (Reanimation Urgence SAMU Hyperbarie), Hôpital de la Timone-(La Timone teaching hospital), 264 rue Saint-Pierre, Marseille 13005, France.
authors.forename: Nathalie
authors.initials: N
authors.lastname: Fournier
authors.affiliation: Aix Marseille Université, IFSTTAR, LBA UMR_T 24, 13916 Marseille, France.
authors.forename: Yves Godio
authors.initials: YG
authors.lastname: Raboutet
authors.affiliation: Aix Marseille Université, IFSTTAR, LBA UMR_T 24, 13916 Marseille, France.
authors.forename: Maxime
authors.initials: M
authors.lastname: Llari
authors.affiliation: Réanimation Polyvalente, (Intensive Care Unit), SAR 1, Hôpital de la Timone-(La Timone teaching hospital), 264 rue Saint-Pierre, Marseille 13005, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Bruder
authors.affiliation: Aix Marseille Université, IFSTTAR, LBA UMR_T 24, 13916 Marseille, France.
authors.forename: Pierre Jean
authors.initials: PJ
authors.lastname: Arnoux
authors.affiliation: Aix Marseille Université, IFSTTAR, LBA UMR_T 24, 13916 Marseille, France.
authors.forename: Michel
authors.initials: M
authors.lastname: Behr
mesh_terms: D000054:Acceleration; D061725:Accelerometry / Q000295:instrumentation*; D000465:Algorithms; D016477:Artifacts; D016887:Cardiopulmonary Resuscitation; D006801:Humans; D055595:Mechanical Phenomena; D059629:Signal-To-Noise Ratio; D013909:Thorax
keywords: Accelerometer; CPR; Cardiac arrest; Feedback devices; Kalman filter