US 12,178,668 B2Granted

Magnetic resonance imaging system and method for determining the position of at least one coil in a magnetic resonance imaging

AssigneeSiemens Healthineers AG

InventorsJohann Sukkau, Volker Matschl, Steffen Schroeter

Life of this patent

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Abstract

At least one example embodiment provides a magnetic resonance imaging system comprising at least one local radiofrequency (RF) coil; and at least one marker element, wherein the magnetic resonance imaging system is configured to activate the at least one marker element and deactivate the at least one marker element such that the at least one marker element is detectable by the magnetic resonance imaging system at a position relative to the at least one local RF coil if the at least one marker element is activated, and the at least one marker element is not detectable by the magnetic resonance imaging system if the at least one marker element is deactivated.

Claims20

Dependent claims

A magnetic resonance imaging system comprising:

at least one local radio frequency (RF) coil;
at least one marker element, the magnetic resonance imaging system is being configured to activate the at least one marker element and deactivate the at least one marker element such that
the at least one marker element is detectable by the magnetic resonance imaging system at a position relative to the at least one local RF coil based on the at least one marker element being activated, and
the at least one marker element is not detectable by the magnetic resonance imaging system based on the at least one marker element being deactivated;
and
a shielding element, at least one of
(i) the shielding element being movable into a first shielding position and into a first non-shielding position, or
(ii) the at least one marker element being movable into a second shielding position and into a second non-shielding position,
wherein
the shielding element is configured to enclose the at least one marker element such that the at least one marker element is shielded from the magnetic resonance imaging system based on at least one of the shielding element being in the first shielding position or the at least one marker element being in the second shielding position, and
the shielding element is configured to be apart from the at least one marker element such that the at least one marker element is detectable by the magnetic resonance imaging system based on at least one of the shielding element being in the first non-shielding position or the at least one marker element being in second the non-shielding position.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/046,573Filed 14 Oct 2022
Priority: EP 2120353719 Oct 2021
Published: US 2023/0118471 A120 Apr 2023
Granted: 31 Dec 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

A61B 90/39
Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00,…
A61B 5/055
Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves:…
G01R 33/34
Excitation or detection systems, e.g. using radio frequency signals: constructional details, e.g. resonators , specially adapted to MR
G01R 33/481
Multimodal MR, e.g. MR combined with positron emission tomography [PET], MR combined with ultrasound or MR combined with computed tomography [CT]:…

Family

US 2023/0118471 A1Pre-grant publication · published 20 Apr 2023
US 12,178,668 B2This patent

From the US filing history. Foreign family members aren’t listed.

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