Device and method for recovering a temporal reference in free-running MR receive chains

US10663543B2 · kind B2 · utility

Assignee

• Siemens Healthcare Limited · DE

Inventors

• Stephan Biber · Erlangen, DE
• Jan Bollenbeck · Eggolsheim, DE
• Sven Heggen · Erlangen, DE
• Martin Nisznansky · Steinfeld (Oldenburg), DE
• Markus Vester · Koblenzer Straße, DE

Key dates

• Filing date: Apr 11, 2018
• Grant date: May 26, 2020
• Expiry date: Jun 29, 2038

Classification

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

Abstract

A device for recovering a temporal reference in a free-running magnetic resonance tomography (MRT) receive chain includes a time reference encoder and a time reference decoder. The time reference encoder is configured to generate a modulation signal as a function of a reference clock, where the modulation signal is configured for a correlation with a temporal resolution less than a maximum predetermined phase deviation and a maximum that may clearly be identified. The time reference decoder is configured to receive, via the first signal input, a receive signal as a function of the modulation signal, perform a correlation with a reference signal, and generate a signal as a function of a temporal reference of the modulation signal in the receive signal in relation to the reference signal.