Magnetic resonance receive coil with dynamic range control

US7514924B2 · kind B2 · utility

Assignee

• KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

• Kai-Michael Luedeke · Hamburg, DE
• Volkmar Schulz · Schwarzenbruck, DE
• Marinus Johannes Adrianus Maria Van Helvoort · Eindhoven, NL
• Jan Den Boef · Best, NL
• Bert L. De Vries · Princeton, US

Key dates

• Filing date: Aug 19, 2005
• Grant date: Apr 7, 2009
• Expiry date: Dec 30, 2025

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/3621
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A radio frequency receive coil (50) includes an antenna (52, 52′) that is tuned to a magnetic resonance frequency to detect a magnetic resonance signal. Electronics (54) disposed on or with the antenna (52, 52′) as a unitary structure include compression circuitry (102, 114, 202, 214, 230, 330, 430, 530) that compresses the magnetic resonance signal at a gain controlled by a gain control signal to produce a compressed magnetic resonance signal. The electronics (54) generate a reduced dynamic range representation of the magnetic resonance signal based on the compressed magnetic resonance signal. The reduced dynamic range representation of the magnetic resonance signal is communicated off the receive coil.