Abstract: A magnetic resonance antenna includes a surface coil and a receive coil. The magnetic resonance antenna includes one or more antenna elements. The magnetic resonance antenna further includes a preamplifier for the antenna element and a coil former for supporting the antenna element. The coil former is formed from a porous material. The antenna is divided into an irradiation zone and at least one reduced radiation zone. The preamplifier for each of multiple antenna elements is located within the at least one reduced radiation zone. The multiple antenna elements are located at least partially within the irradiation zone. The coil former has a perimeter. The irradiation zone extends continuously from a first edge of the perimeter to a second edge of the perimeter. The first edge and the second edge are opposing edges.

Abstract: The present disclosure relates to a therapy system (100) comprising a radiotherapy device (102) configured to deliver and direct a radiotherapy beam along an axis to a predefined target position (117) in an imagine zone (138, 146) within an MR module (106) of the therapy system (100). The predefined target position (117) is matched with a position of an RF coil (140) of the MR module (106).

Abstract: A magnetic resonance transmit and/or receive antenna system configured for being used in combination with a magnetic resonance radiotherapy system. The antenna system can include at least one antenna for transmitting and/or receiving radio frequency signals and a cover enclosing the antenna components. The antenna can include antenna components and the cover can include a spatially varying thickness and/or density towards an outer edge of the surface and/or next to an antenna component as to make the change in radiation attenuation between the enclosing cover compared to the antenna component and/or air more gradual.

Abstract: A magnetic resonance transmit and/or receive antenna system configured for being used in combination with a magnetic resonance radiotherapy system. The antenna system can include at least one antenna for transmitting and/or receiving radio frequency signals and a cover enclosing the antenna components. The antenna can include antenna components and the cover can include a spatially varying thickness and/or density towards an outer edge of the surface and/or next to an antenna component as to make the change in radiation attenuation between the enclosing cover compared to the antenna component and/or air more gradual.

Abstract: The invention provides for magnetic resonance antenna (100), wherein the magnetic resonance antenna is a surface coil and is a receive coil. The magnetic resonance antenna comprises one or more antenna elements (104, 404). The magnetic resonance antenna further comprises a preamplifier (402) for the antenna element and a coil former (106) for supporting the antenna element. The coil former is formed from a porous material. The antenna is divided into an irradiation zone (204) and at least one reduced radiation zone (202, 206). The preamplifier for each of multiple antenna elements is located within the at least one reduced radiation zone. The multiple antenna elements are located at least partially within the irradiation zone. The coil former has a perimeter, wherein the irradiation zone extends continuously from a first edge (208) of the perimeter to a second edge (210) of the perimeter. The first edge and the second edge are opposing edges.

Abstract: The present disclosure relates to a therapy system (100) comprising a radiotherapy device (102) configured to deliver and direct a radiotherapy beam along an axis to a predefined target position (117) in an imagine zone (138, 146) within an MR module (106) of the therapy system (100). The predefined target position (117) is matched with a position of an RF coil (140) of the MR module (106).

Abstract: A high-intensity focused ultrasound (HIFU) therapy system comprises an ultrasound transduce to emit a focused ultrasound beam along a beam path. An ultrasound transparent window is positioned in the beam path. A fluid cooling system to provide cooling of an object to which the focused ultrasound beam is directed. The fluid cooling system includes a fluid receptacle mounted adjacent to the ultrasound transparent window and a cooling unit to cool a coolant and pass the coolant trough the fluid receptacle to and from the fluid receptacle. A degassing module and preferably also a filter to remove volatile components from the coolant. Dissolved air or other gases are removed from the coolant, so that the formation of bubbles in the coolant is avoided or at least suppressed.

Abstract: An RF/MR transmit and/or receive antenna is disclosed for use in a hybrid magnetic resonance imaging (MRI) system (or MR scanner), which comprises an MRI system and another imaging system for example in the form of a high intensity focused ultrasound (HIFU) system. The RF transmit and/or receive antenna (40, 50) is provided with respect to its conductor structure such that it does not disturb or in any other way detrimentally influence the related other (i.e. HIFU) of the two systems, especially if both systems are operated simultaneously and if the RF antenna is positioned in close proximity to an object to be imaged.

Abstract: An RF/MR transmit and/or receive antenna is disclosed for use in a hybrid magnetic resonance imaging (MRI) system (or MR scanner), which comprises an MRI system and another imaging system for example in the form of a high intensity focused ultrasound (HIFU) system. The RF transmit and/or receive antenna (40, 50) is provided with respect to its conductor structure such that it does not disturb or in any other way detrimentally influence the related other (i.e. HIFU) of the two systems, especially if both systems are operated simultaneously and if the RF antenna is positioned in close proximity to an object to be imaged.