MR invasive device and method for active MR guidance of invasive devices with target navigation

US7835780B1 · kind B1 · utility

Inventors

• Jeffrey L. Duerk · Avon Lake, US
• Qiang Zhang · Dalian, CN
• Michael Wendt · Erlangen, DE
• Yiu-Cho Chung · Chicago, US
• Jonathan S. Lewin · Atlanta, US
• Elmar M. Merkle · Basel, CH

Key dates

• Filing date: Mar 30, 2001
• Grant date: Nov 16, 2010
• Expiry date: Mar 30, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/34084
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An invasive device having an inductive coupling element. One embodiment of the invasive device includes a plurality of receive coils inductively coupled to a communicating coil. The receive coils are selectively tuned and detuned to receive MR signals for providing coordinate information used for device tracking. A second embodiment of the invasive device includes a receive coil having a plurality of winding elements separated from each other by different distances. A method of rapidly acquiring both the invasive device orientation and position information to dynamically adapt MR scan planes to continuously follow the invasive device relative to a target is provided. The target-navigation technique automatically defines the MR scan plane and a time domain multiplexing technique is applied for MR imaging and device tracking. Using these techniques, the acquired MR images shows both the invasive device and the target tissue.