EP 2384158 A1 20111109 - SYSTEM AND METHOD FOR DYNAMIC METAL DISTORTION COMPENSATION FOR ELECTROMAGNETIC TRACKING SYSTEMS
Title (en)
SYSTEM AND METHOD FOR DYNAMIC METAL DISTORTION COMPENSATION FOR ELECTROMAGNETIC TRACKING SYSTEMS
Title (de)
SYSTEM UND VERFAHREN ZUR KOMPENSATION VON DYNAMISCHER METALLDISTORSION FÜR ELEKTROMAGNETISCHE TRACKINGSYSTEME
Title (fr)
SYSTÈME ET PROCÉDÉ DE COMPENSATION DYNAMIQUE DES DISTORSIONS DE MÉTAL POUR SYSTÈME DE SUIVI ÉLECTROMAGNÉTIQUES
Publication
Application
Priority
- IB 2009054997 W 20091110
- US 14240409 P 20090105
Abstract (en)
[origin: WO2010076676A1] A method and system for dynamic metal distortion compensation using an Electromagnetic Tracking System (EMTS) (10) using an electromagnetic field from an electromagnetic field generator (12). A plurality of fiducial markers (14) are provided, each having at least one electromagnetic sensor (26), the electromagnetic sensors oriented in a plurality of sensor orientations, and at least some of the sensors being located proximal to a volume of interest. The fiducial markers (14) are imaged to provide their position in image space. Position readings of the electromagnetic sensors (26) are monitored using the EMTS. A metal distortion correction function is calculated by comparing the positions of the fiducial markers in image space to the positions of the electromagnetic sensors. A medical device (16) moving through the volume of interest is also tracked using the EMTS, and the distortion correction function is applied to medical device position readings to compensate for the distortion.
IPC 8 full level
A61B 19/00 (2006.01); A61B 17/00 (2006.01)
CPC (source: EP)
A61B 34/20 (2016.02); A61B 2017/00725 (2013.01); A61B 2034/2051 (2016.02); A61B 2034/2072 (2016.02); A61B 2090/363 (2016.02); A61B 2090/3995 (2016.02)
Citation (search report)
See references of WO 2010076676A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2010076676 A1 20100708; CN 102307535 A 20120104; CN 102307535 B 20140924; EP 2384158 A1 20111109; JP 2012514738 A 20120628; JP 5667988 B2 20150212
DOCDB simple family (application)
IB 2009054997 W 20091110; CN 200980156110 A 20091110; EP 09756357 A 20091110; JP 2011544093 A 20091110