The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 2023
Filed:
Mar. 23, 2022
Siemens Healthcare Gmbh, Erlangen, DE;
Centre National DE LA Recherche Scientifique (Cnrs), Paris, FR;
Institut National DE LA Sante ET DE LA Recherche Medicale (Inserm), Paris, FR;
King's College London, London, GB;
Department of Health and Human Services, Bethesda, MD (US);
Univ Paris Xiii Paris-nord Villetaneuse, Villetaneuse, FR;
Universite DE Paris, Paris, FR;
Omar Darwish, London, GB;
Radhouene Neji, London, GB;
Ahmed M. Gharib, Bethesda, MD (US);
Ralph Sinkus, Parmain, FR;
Siemens Healthcare GmbH, Erlangen, DE;
Abstract
The present disclosure is directed to techniques for synchronizing a rotational eccentric mass of a gravitational transducer used for a magnetic resonance elastography acquisition with a corresponding magnetic resonance elastography scan carried out by a magnetic resonance imaging system, wherein the rotation of the eccentric mass is driven by a shaft. The method includes starting the rotation of the eccentric mass at a set vibration frequency and the magnetic resonance elastography scan at a set acquisition frequency; determining the rotational position of the shaft; defining the rotational position as first reference position; calculating further reference positions. At the start time of each subsequent acquisition period, determining the current rotational position of the shaft; comparing the determined current rotational position with the theoretically expected reference position and decreasing or increasing the rotational speed of the rotational eccentric mass based on the comparison.