Stent and MR imaging process for the imaging and the determination of the position of a stent

US6280385A · kind A · utility

Assignee

• Simag GmbH · DE

Inventors

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

Key dates

• Filing date: Oct 13, 1998
• Grant date: Aug 28, 2001
• Expiry date: Oct 13, 2018

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2230/0091
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to a magnetic resonance imaging process for the imaging and determination of the position of a stent introduced into an examination object as well as to the stent so utilized. According to the invention, the stent has at least one passive resonance circuit with an inductance and a capacitance whereby its resonance frequency is essentially equal to the resonance frequency of the applied high-frequency radiation of the magnetic resonance system. A changed signal response is thus produced in a locally defined area in or around the stent which is imaged in spatial resolution.