Abstract: A travelling wave MRI apparatus is provided that includes a coaxial waveguide arrangement, a cavity for placing therein a subject or object to be imaged, a device for applying a static magnetic field, a device for applying gradient magnetic fields, a device for coupling in electromagnetic excitation pulses having a predetermined operating frequency to induce nuclear magnetic resonance within the subject or object, and a device for detecting an electromagnetic signal resulting from the magnetic resonance. The coaxial waveguide arrangement placed in the cavity of the apparatus comprises a first and a second conductive member arranged in a coaxial arrangement with respect to one another, wherein the first conductive member is formed by a continuous tubular outer member and the second conductive member is formed by a tubular shaped inner member, which is divided in axial direction defining an investigation area.

Abstract: The invention relates to a dual-modality imaging system and a method for dual-modality imaging of an imaged object, wherein a magnetic resonance imaging (MRI) apparatus for acquiring MRI data and at least one optical imaging detector for acquiring optical imaging data are arranged to acquire the MRI data and the optical imaging data of the imaged object (10) simultaneously, the at least one optical imaging detector being a non-contact optical imaging detector.

Abstract: The invention relates to a dual-modality imaging system and a method for dual-modality imaging of an imaged object, wherein a magnetic resonance imaging (MRI) apparatus for acquiring MRI data and at least one optical imaging detector for acquiring optical imaging data are arranged to acquire the MRI data and the optical imaging data of the imaged object (10) simultaneously, the at least one optical imaging detector being a non-contact optical imaging detector.

Abstract: The present invention relates to an implantable chamber (1) with a connecting element (2), comprising a connecting sleeve (6) and a surrounding contact surface (7), an insert element (3), comprising an insert sleeve (8) and a surrounding abutment surface (9). The insert sleeve (8) is inserted into the connecting sleeve (6) of the connecting element (2). The implantable chamber (1) further comprises a cap (4) with a surrounding edge (11), the cap (4) partly covering the connecting element (2) and the insert element (3), leaving an opening (13) on one side. The implantable chamber (1) contains a passive resonance circuit (14) with an inductance and a capacitance, the passive resonance circuit (14) surrounding at least part of a cavity (15) inside the insert element (3).

Abstract: The invention relates to a method and an apparatus for measuring the position and the orientation of an interventional device within a magnetic resonance imaging apparatus, the magnetic resonance image apparatus providing a static magnetic field B0 and magnetic field gradients with known magnetic flux densities and directions. The invention includes attaching a Faraday sensor to the interventional device, the Faraday sensor being connected to an optical measuring device. The method also includes using the optical measuring device for measuring the rotation of the plane of polarization of linearly polarized light in the Faraday sensor, while exposing the interventional device: (i) to the static magnetic field B0, and (ii) to the field gradients in all three directions of space in addition to the static magnetic field B0.

Abstract: The invention relates to a method and an apparatus for measuring the position and the orientation of an interventional device within a magnetic resonance imaging apparatus, the magnetic resonance image apparatus providing a static magnetic field B0 and magnetic field gradients with known magnetic flux densities and directions. The invention includes attaching a Faraday sensor to the interventional device, the Faraday sensor being connected to an optical measuring device. The method also includes using the optical measuring device for measuring the rotation of the plane of polarization of linearly polarized light in the Faraday sensor, while exposing the interventional device: (i) to the static magnetic field B0, and (ii) to the field gradients in all three directions of space in addition to the static magnetic field B0.