Signal transmission for magnetic-particle-image signal detection

US12161454B2 · kind B2 · utility

Assignee

• Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen · DE

Inventors

• Volkmar Schulz · Schwarzenbruck, DE
• Sebastian Reinartz · Baal, DE
• Dennis Pantke · Cologne, DE
• Florian Mueller · Speyer, DE

Key dates

• Filing date: Mar 13, 2020
• Grant date: Dec 10, 2024
• Expiry date: Nov 27, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/1276
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a method for carrying out signal detection by means of magnetic particle imaging, in which method magnetic/magnetisable particles (4), arranged in the field-free region of a location-dependent magnetic field, in particular a gradient magnetic field, are magnetised by means of an excitation magnetic field that changes over time, and the harmonics (9, 15), generated by the particles (4), of the frequency of the excitation magnetic field are detected as a signal from the magnetic particles (4) by means of a receiver coil arrangement (1) which in particular surrounds the particles (4), wherein a signal-transmitting arrangement, which has an outer coil (10) and at least one inner coil (11; 16, 17) connected in series to said outer coil, is positioned within the receiver coil arrangement (1) around the particles (4), wherein the signal received from the particles (4) by the at least one inner coil (11; 16, 17) is transmitted to the outer coil (10) by current flow and is re-emitted by said outer coil, in particular as a result of which the signal (S) received directly from the particles (4) and the signal (S) received from the particles (4) indirectly by the outer…