MR imaging method and medical device for use in method

US6847837B1 · kind B1 · utility

Assignee

• Simag GmbH · DE

Inventors

• Andreas Melzer · Bad Hersfeld, DE
• Martin Busch · Grafing, DE

Key dates

• Filing date: Oct 13, 1998
• Grant date: Jan 25, 2005
• Expiry date: Oct 13, 2018

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2250/0045
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to an MR imaging method for representing and determining the position of a medical device inserted in an examination object, and to a medical device used in the method. In accordance with the invention, the device (11) comprises at least one passive oscillating circuit with an inductor (2a, 2b) and a capacitor (3a, 3b). The resonance frequency of this circuit substantially corresponds to the resonance frequency of the injected high-frequency radiation from the MR system. In this way, in a locally limited area situated inside or around the device, a modified signal answer is generated which is represented with spatial resolution.