Koninklijke Philips Corporation N.v.

Philips Intellectual Property & Standards Gmbh

Philips Gmbh

Cecilia Possanzini

Christoph G Leussler

Peter Vernickel

Hubert Cécile François Martens

Marinus Johannes Adrianus Maria Van Helvoort

Michel Gerardus Pardoel

Robert Paul Kleihorst

Aaldert Jan Elevelt

Clemens Bos

Elizabeth Anne Moore

Jan Bertus Marten Warntjes

Marinus Ludovicus Adrianus Vrinten

Marco Boutelje

Marinus L A Vrinten

Marco Hubertus Johannes Nijenhuis

Christoph Leussler

Daniel Wirtz

Disclosed herein is a medical system comprising: —a memory storing machine executable instructions; —a computational system, wherein execution of the machine executable instructions causes the computational system to perform a mismatch check comprising: —receive posture recognition system data, wherein the posture recognition system data comprises a set of subject coordinates and a set of coil coordinates described using a current coordinate system, wherein the set of subject coordinates are descriptive of anatomical features of a subject, wherein the set of coil coordinates are descriptive of a coil location of a magnetic resonance imaging coil, wherein coil data comprising a predefined range of coil positioning coordinates referenced to the anatomical features is associated with the magnetic resonance imaging coil; —determine an allowed range of coil coordinates by mapping the predefined range of coil positioning coordinates to the current coordinate system using the set of subject coordinates and the anatomical features; and —provide a warning signal in case of a mismatch between the set of coil coordinates and the allowed range of coil coordinates.

Detection of off-label use of a magnetic resonance imaging coil

A transmit and/or receive coil assembly includes a first and second exchangeable part configured for transmitting and/or receiving RF signals. The exchangeable parts are exchangeable with each other and configured to co-operate with a permanent part of the transmit and/or receive coil assembly during magnetic resonance imaging in order to generate an RF (or B1+) field that covers a volume of interest of the object to be scanned and/or to receive magnetic resonance signals from the volume of interest of the object.

Magnetic resonance imaging system without integrated body coil

The invention provides for a subject support assembly () for a magnetic resonance imaging system (). The subject support is operable for supporting a subject () within an imaging zone () of a magnet () of the magnetic resonance imaging system. The subject support is operable for supporting at least one radio frequency amplifier () outside of the imaging zone. The subject support is operable for supplying DC electrical power to the at least one radio frequency amplifier.

Magnetic resonance imaging subject support

A magnetic resonance coil testing arrangement includes an electric circuit for emulating an electrical load to a magnetic resonance coil. The electric circuit is configured to emulate an electrical load corresponding to an electrical load induced by organic tissue at the magnetic resonance frequency of the magnetic resonance coil.

Electronic load simulator device for testing RF coils

A radio frequency coils array includes a plurality of conductive RF loops () configured to excite or receive magnetic resonance signals, and a plurality of electronics modules () corresponding to the plurality of conductive RF loops. The electronics modules are grouped together in a compact electronics region (). Each RF coil is operatively connected with a corresponding electronics module. Each electronics module includes at least a pre-amplifier.

Compact and flexible radio frequency coil arrays

The invention relates to a magnetic-resonance imaging (MRI) apparatus comprising an electrical coil system () for transmitting and receiving a radio-frequency (RF) magnetic field from an examination volume () of the MRI apparatus. The electrical coil system () comprises at least one surface coil () which extends substantially in a plane. The surface coil is used for transmitting and/or receiving a RF magnetic field which is oriented substantially perpendicularly to the plane of the surface coil (). The surface coil () has a main coil axis (). When the MRI apparatus is in use, the main coil axis () extends substantially parallel to a main magnetic field in the examination volume () of the MRI apparatus. On both sides of the main coil axis (), the surface coil () comprises an electrically conducting element () which extends substantially parallel to the main coil axis (). To provide a surface coil () which transmits more homogeneous RF magnetic fields and/or has a more homogeneous sensitivity for received RF magnetic fields than known surface coils, at least one of the electrically conducting elements () of the surface coil () comprises at least two electric conductors (). With respect to their distance to the main coil axis (), these electric conductors () are positioned at a relatively short distance from each other. In the plane of the surface coil (), the electric conductors ()extend substantially parallel to the main coil axis () of the surface coil ().

System of electric coils for transmitting and receiving radio-frequency magnetic fields in a magnetic-resonance imaging apparatus, and magnetic-resonance imaging apparatus provided with such a system of electric coils

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Eindhoven, Netherlands

Cecilia Possanzini