Patent · US Expired

Method and apparatus for calibrating a navigation system in relation to image data of a magnetic resonance apparatus

US6026315A · kind A · utility

68Cited by

6References

3Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Gerald Lenz · Fairview Avenue, DE
Rainer Kuth · Annaberg-Buchholz, DE
Theodor Vetter · Erlangen, DE

Key dates

Filing date	Mar 19, 1998
Grant date	Feb 15, 2000
Priority date	—
Expiry date	Mar 19, 2018

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/58
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

In a method and apparatus for calibrating a navigation system in relation to image data of a magnetic resonance apparatus, positions of at least three markers arranged in an imaging volume of a magnetic resonance apparatus are determined with the navigation system in a first coordinate system, and are determined by means of magnetic resonance in a second coordinate system. From the positions of the markers in the two coordinate systems, a position and an orientation of the two coordinate systems to one another are determined. Localization data are transformed into the second coordinate system. An apparatus for conducting the method has at least one marker having a substance that can be detected using magnetic resonance technology, in spatial allocation to optical markings. A pickup coil can be spatially allocated to each marker.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.