IMPROVED METHOD OF CALIBRATING SYSTEM OF CATHETER TRACKING, USING MEDICAL DATA OF IMAGING Russian patent published in 2011 - IPC A61B5/06 A61M25/95 

FIELD: medicine.

SUBSTANCE: inventions relate to field of medicine. Method includes obtaining before or during interference unit of image data for measured space of a particular patient by means of scanning device; segmentation of image data in accordance with regions of tissues for creation of medical image of each tissue region from tissue regions; obtaining electromagnetic or acoustic data for each tissue region; processing of electromagnetic or acoustic data for creation of electromagnetic or acoustic model for one or more tissue regions, covering modelling space, corresponding to measured region of a particular patient and region of catheter tracking. Model is used for prediction of electromagnetic or acoustic field within tissue regions; bringing modeled space into correspondence with space of catheter tracking; measurement of electromagnetic or acoustic field of catheter during interference for reference to predicted electromagnetic or acoustic field of model to determine errors of catheter tracking; and correction of catheter position during tracking for minimisation of errors of catheter tracking.

EFFECT: application of inventions will make it possible to improve catheter tracking.

8 cl, 1 dwg