Examination couch, supplementary coil module, coil system and magnetic resonance facility

Abstract

The examination couch comprises the magnetic resonance coil, the magnetic resonance coil comprises a plurality of coil modules integrated into the examination couch, and the coil modules can be controlled independently. By integrating the coil module of the magnetic resonance coil into the examination couch, the coil module is completely surrounded by the examination couch, so that the examination object is also automatically positioned on the coil module of the magnetic resonance coil of the examination couch when the examination object is positioned on the examination couch. A high degree of flexibility is achieved by the possibility of independent actuation of the individual coil modules. Therefore, the working steps required for the particularly clinical operation of the magnetic resonance coil are simplified and facilitated, since the previously required, typically multi-part installation of the independent coil module on a conventional examination bed and particularly for examinations on the torso is omitted. The advantages and embodiments proposed with respect to the examination couch are similarly also suitable for supplementary coil modules, coil systems and magnetic resonance systems.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of examination couch with integrated MR, a kind of supplementary coil module, a kind of coil system and a kind of magnetic resonance facility. BACKGROUND

[0002] Magnetic resonance technology (MR for short represents Magnetresonanz) is a known technology, by means of which an image of the interior of an examination object can be generated. Briefly, the examination object is positioned in a magnetic resonance device in a relatively strong, static, homogeneous basic magnetic field (also referred to as B0 field) with a field strength of 0.2 Tesla to 7 Tesla or more, such that its nuclear spins are oriented along the basic magnetic field. In order to trigger nuclear spin resonances which can be measured as signals, radio-frequency excitation pulses (RF pulses) are emitted into the examination object, the triggered nuclear spin resonances are measured as so-called k-space data and MR images are reconstructed therefrom or spectral data are derived therefrom. In order to spatially encode the measurement data, rapidly switched magnetic gradient fields, referred to as gradients, are superposed on the basic magnetic field. The pattern used to describe the time sequence of the RF pulses to be emitted and the gradients to be switched is referred to as the pulse sequence (pattern), or also simply as the sequence. The recorded measurement data are digitized and stored as complex values in a k-space matrix. The associated MR images can be reconstructed from the k-space matrix to which values are assigned, for example by means of a multidimensional Fourier transformation.

[0003] The required RF pulses are emitted into the examination object by means of MR transmit coils. The triggered nuclear spin resonances are received by MR receive coils.

[0004] It is known to use so-called body coils (English "body coil") to emit RF pulses which surround the patient tunnel of the magnetic resonance facility along its lateral surface. It is also known to use local MR coils which can be arranged in close proximity to the examination object to be examined, which local MR coils are mostly configured as pure RF receive coils, but can also be configured as RF transmit coils or as RF transmit and receive coils ("Tx / Rx").

[0005] The frequency of the RF pulses for signal excitation is related to the strength of the basic magnetic field, such that the frequency of the RF pulses also increases as the strength of the basic magnetic field increases.

[0006] In order to perform signal excitation in magnetic resonance facilities with ultrahigh magnetic fields, in particular with excitation frequencies from 7 Tesla or from 300 MHz, body region-specific RF transmit and / or receive coils are generally used which are matched to the respective body region, such that they can be positioned as close as possible to the respective body region of the examination object.

[0007] At low basic magnetic field strengths, for example 3 Tesla or less, a sufficiently good excitation is usually achieved with a body coil. However, at higher basic magnetic field strengths, in particular greater than 3 Tesla, the body coil is less efficient than the local coil in terms of its transmission power and / or SAR characteristics due to its greater distance from the examination object.

[0008] Therefore, especially at higher basic magnetic field strengths, starting from slightly more than 3 Tesla, corresponding local coils, which can be changed for the corresponding examination, are used to examine specific body regions of the examination subject. Such coil changes require time and sometimes involve considerable effort.

[0009] In particular, RF transmit and receive coils generally have a greater weight and / or volume than local, purely RF receive coils. For example, a mainstream Tx / Rx head coil weighs approximately 20 kg with a length of approximately 50 cm (excluding connecting cables).

[0010] Although weight reduction can be achieved, for example, by using lightweight plastics, the plastics used must meet the requirements of biocompatibility and durability necessary in particular for medical devices. Utility Model Content

[0011] The invention is based on the object of at least partially overcoming the disadvantages of the prior art and, in particular, providing a particularly flexible and easy-to-operate possibility for MR imaging tailored to different body regions of the examination subject.

[0012] The above object is achieved according to the features of the embodiments of the present invention. Preferred embodiments can be found in particular in the present disclosure.

[0013] The examination couch according to the present invention comprises a magnetic resonance coil (MR coil), which comprises a plurality of coil modules integrated into the examination couch, wherein the coil modules can be controlled independently of one another.

[0014] In an embodiment of the utility model according to the present invention, at least one coil module of the magnetic resonance coil includes a plurality of coil elements.

[0015] In an embodiment of the invention according to the present invention, at least one coil module of the magnetic resonance coil is designed as a coil module that can be switched between a transmit mode and a receive mode.

[0016] In an embodiment of the invention, at least one coil module of the magnetic resonance coil comprises at least one pure receive coil element.

[0017] In an embodiment of the utility model according to the present invention, at least one coil module of the magnetic resonance coil includes at least two receiving coil elements.

[0018] In an embodiment of the invention, at least one coil module of the magnetic resonance coil comprises at least one pure transmit coil element.

[0019] In an embodiment of the utility model according to the present invention, at least one coil module of the magnetic resonance coil includes at least two transmitting coil elements.

[0020] In an embodiment of the invention according to the invention, at least one coil module of the magnetic resonance coil is designed to be combined with a supplementary coil module, in particular one that is geometrically adapted, to form an extended coil module.

[0021] In an embodiment of the utility model according to the present invention, the electronic device for electronically controlling the magnetic resonance coil is integrated into the interior of the examination bed, for example also integrated into the interior of the examination bed foot of the examination bed, the examination bed foot being included in the examination bed and supporting the examination bed.

[0022] In an embodiment of the utility model according to the present invention, the electronic components integrated in the examination bed include at least one of the following components: a preamplifier, a frequency converter, a transmit / receive switching device for switching between transmit operation and receive operation of at least one coil module of the magnetic resonance coil, a filter, a surface wave trap, or a decoupling circuit for decoupling different coil elements included in the magnetic resonance coil.

[0023] By integrating the coil modules of the MR coil into the examination bed, the coil modules are completely surrounded by the examination bed. This allows the examination subject to be automatically positioned on the coil modules of the MR coil when the examination subject is positioned on the examination bed. The coil modules are arranged as close as possible to the support surface of the examination bed, on which the examination subject rests. The ability to independently control the individual coil modules allows for a high degree of flexibility.

[0024] The work steps required for, in particular, clinical operation of the MR coil are thus simplified and facilitated, since the previously required, often multi-part installation of a separate coil module on a conventional examination table, which is complex and particularly cumbersome for examinations on the torso, is omitted.

[0025] A coil module of an MR coil may include a plurality of coil elements, which may also be referred to as antenna elements or as individual coils and usually have their own channels.

[0026] At least one coil module of the MR coil is designed to be combined with a geometrically matched supplementary coil module to form an extended coil module. The extended coil module can be designed in particular such that an examination region can be arranged between the coil module and the associated supplementary coil module.

[0027] The supplementary coil modules can be designed specifically for the examination region to be examined, ensuring that the distance between the supplementary coil modules and the examination region to be examined is as small as possible. This allows the extended coil modules to be positioned as close as possible to the contours of the examination region enclosed by the extended coil modules. This allows for high sensitivity of the extended coil modules to the enclosed examination region, resulting in improved illumination of the examination region.

[0028] The electronics for electronically controlling the MR coils can be integrated within the examination table, for example, within the table legs, which are included in and support the table. This integration of the electronics within the table ensures that they are securely mounted and eliminates the need for additional connections. This provides better protection for the electronics and eliminates the need for lifting by the user.

[0029] The supplemental coil module according to the present invention is configured for use as a supplemental coil module according to one of the embodiments described herein.

[0030] The coil system according to the present invention comprises at least one coil module that can be integrated into the examination couch according to the present invention and at least one matching supplementary coil module. If such a coil system is integrated into a conventional examination couch, an examination couch according to the present invention is produced.

[0031] The magnetic resonance system according to the present invention comprises an examination couch according to the present invention, in particular having at least one supplementary coil module.

[0032] The advantages and embodiments mentioned with regard to the examination couch also apply analogously to the supplementary coil module, the coil system and the magnetic resonance system. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Other advantages and details of the present invention can be derived from the embodiments described below and from the accompanying drawings. The examples listed are not intended to limit the present invention. The accompanying drawings show:

[0034] Figure 1 A schematic diagram of an examination bed according to the present invention is shown.

[0035] Figure 2 A schematically illustrated magnetic resonance system according to the invention is shown. DETAILED DESCRIPTION

[0036] Figure 1The diagram shows an examination bed L according to the present invention, which has an MR coil (magnetic resonance coil) 7', which includes a plurality of coil modules 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 integrated into the examination bed, and the coil modules 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 can be controlled independently of each other.

[0037] The coil modules 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 can be arranged side by side (as shown), for example fixedly mounted, in the axial direction A of the examination bed L. In this way, for example, the sections of the examination bed L corresponding to the coil modules 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 can be respectively actuated for measurement.

[0038] The coil modules 7.1, 7.2, 7.3, 7.4, 7.5, and 7.6 can be arranged at the position of the examination bed L so that the expected examination area of ​​the examination subject U lying on the examination bed, schematically shown by a dotted line, for example, the expected body area of ​​the patient, is located in the area of ​​the coil modules 7.1, 7.2, 7.3, 7.4, 7.5, and 7.6, so that targeted examination of the desired examination area can be achieved.

[0039] At least one coil module 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 of the MR coil 7' may include a plurality of coil elements and thus have a plurality of channels. Figure 1 In the illustration in FIG, purely by way of example, four coil elements are shown as dashed ovals in coil module 7 . 1 and three coil elements are shown as dashed ovals in coil module 7 . 3 .

[0040] At least one coil module 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 of the MR coil 7' can be designed as a coil module 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 that can be switched between a transmit mode and a receive mode. In this way, a transmit mode for RF pulse injection and a receive mode for receiving triggered echo signals are possible as required.

[0041] For the receiving operation, at least one coil module 7 . 1 , 7 . 2 , 7 . 3 , 7 . 4 , 7 . 5 , 7 . 6 of the MR coil 7 ′ can include, for example, at least one pure receiving coil element, ie a coil element designed purely for the receiving operation.

[0042] However, at least one coil module 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 of the MR coil 7' may also include at least two receive coil elements. In this way, the coil modules 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 are suitable for operation using MR acceleration technology, wherein the spatial resolution of the received data is achieved, in particular, via the sensitivity data of the included receive coil elements, for example within the scope of parallel acquisition technologies such as GRAPPA or SENSE, or within the scope of so-called compressed sensing technology.

[0043] For transmit operation, at least one coil module 7 . 1 , 7 . 2 , 7 . 3 , 7 . 4 , 7 . 5 , 7 . 6 of the MR coil 7 ′ comprises at least one pure transmit coil element, ie a coil element designed purely for transmit operation.

[0044] At least one coil module 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 of the MR coil 7' can include at least two transmit coil elements. In this way, the coil modules 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 are suitable for operation using parallel transmit technology (English: "parallel transmit"), which allows for particularly homogeneous excitation.

[0045] With the aid of the integrated coil modules 7.1, 7.2, 7.3, 7.4, 7.5, and 7.6 of the MR coil 7' of the examination table L, sufficient illumination of the desired examination area can be achieved, especially if the desired examination area is sufficiently close to the coil modules for their sensitivity. When examining the patient's spine as the examination object U, for example, the illustrated coil module 7.1 can be used to examine the cervical spine (C-spine), the illustrated coil module 7.2 can be used to examine the thoracic spine (T-spine), and / or the illustrated coil module 7.3 can be used to examine the lumbar spine (L-spine), without requiring separate, local coil modules that must first be configured by the user.

[0046] At least two of the coil modules 7.1, 7.2, 7.3, 7.4, 7.5, and 7.6 are designed to be operated together as a modular coil module. For example, referring to the above-mentioned example of examining the spine, the modular coil module can be used to examine the entire spine by operating the coil modules 7.1, 7.2, and 7.3 together, eliminating the need for separate local coils.

[0047] At least one coil module 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 of the MR coil 7' can constitute a coil module for combination with a matching complementary coil module 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* to form an extended coil module. The complementary coil module 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* can in particular be formed in geometric terms to match the associated coil module 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 and / or to match in the sense of a possibility for suitable coupling.

[0048] The extended coil module formed from the coil module 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 and the associated complementary coil module 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* is formed here such that the examination region of the examination object U can be positioned between the coil module 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 and the associated complementary coil module 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6*. The extended coil module can in particular be formed such that it encloses the examination region of the examination object U from at least two sides.

[0049] At least one complementary coil module 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* of the MR coil 7' can be formed as a coil module 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 which is switchable between a transmit mode and a receive mode. In this way, a transmit mode for RF pulse injection and a receive mode for receiving triggered echo signals are possible as required.

[0050] For the receive mode, at least one complementary coil module 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* of the MR coil 7' can comprise at least one purely receiving coil element, i.e. a coil element which is designed purely for the receive mode.

[0051] However, at least one complementary coil module 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* of the MR coil 7' can also comprise at least two receiving coil elements. In this way, the coil module 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 is suitable for operation under the condition of using MR acceleration techniques, wherein in particular the spatial resolution of the received data is achieved via the sensitivity data of the included receiving coil elements, for example in the context of parallel acquisition techniques such as GRAPPA or SENSE, or in the context of so-called compressed sensing techniques.

[0052] For transmit operation, at least one supplementary coil module 7 . 1 *, 7 . 2 *, 7 . 3 *, 7 . 4 *, 7 . 5 *, 7 . 6 * of the MR coil 7 ′ comprises at least one pure transmit element, ie a coil element designed purely for transmit operation.

[0053] At least one supplementary coil module 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* of the MR coil 7' can include at least two transmit coil elements. In this way, the coil modules 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 are suitable for operation using parallel transmit technology (English: "parallel transmit"), which allows for particularly homogeneous excitation.

[0054] Generally speaking, purely transmitting or receiving coil elements for coil modules 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 and / or supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* can be implemented more effectively to meet the respective requirements. However, coil elements that can be switched between receiving and transmitting operation can save space when both operating modes are desired.

[0055] In the combination of supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* and the associated coil modules 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, the connection between the supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* and the associated coil modules 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 is designed so that the supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* are positioned at a defined position relative to the associated coil modules 7.1, 7.2, 7.3, 7.4, 7.5, 7.6. For this purpose, a for example releasable fixed connection between the supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* and the associated coil modules 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 can be provided, for example, with a locking device, such as in Figure 1 In FIG. 5 , the areas between coil module 7 . 1 and the supplementary coil module 7 . 1 * and also between coil module 7 . 5 and the associated coil module 7 . 5 * are schematically shown as hatched areas.

[0056] Alternatively, a connection between the supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* and the coil modules 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 belonging thereto is also conceivable, which allows a free positioning of the supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* with respect to the coil modules 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 belonging thereto.

[0057] The supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* can be constituted specifically for the examination region to be examined, such that the spacing between the supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* and the examination region to be examined is as small as possible.

[0058] The supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* can be used specifically for the examination region to be examined of an examination object lying on an examination bed L, which corresponds to the position of the coil module 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 belonging thereto, at which the examination region lies on the examination bed L when the examination object is lying on the examination bed L. For example, the coil module 7.1 located at the head end of the examination bed L can be associated with a supplementary coil module 7.1* which is constituted specifically for the head as examination region. In this way, the MR coil 7' of the examination bed L is particularly user-friendly. Figure 1

[0059] Just for examination regions which are further away from the support surface of the examination bed L, for example in the case of a chest examination, however also for examination regions for which a maximum possible illumination and thus a maximum possible resolution of the measurement data received is desired, for example in the case of a prostate examination, such supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* are particularly recommended in order to improve the quality of the measurement data obtainable.

[0060] An examination region to be examined is generally considered to be a region of an examination object, in particular a patient, which is to be examined. Possible examination regions for which a supplementary coil module 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, 7.6* can be constituted specifically are, in particular, a head region, a chest region, a belly region, a prostate region, a thigh region, a knee region, a lower leg region or a foot region.

[0061] ​The electronics EB for electronically controlling the MR coil 7 ′ can be integrated inside the examination table L, for example also inside a table foot LF of the examination table L, which is included in the examination table and carries the examination table L. In this way, the electronics EB are stored safely and the user does not have to worry about them.

[0062] The electronic components EB integrated in the examination bed L may include at least one of the following components: a preamplifier, a frequency converter, a transmit / receive switching device for switching between transmit operation and receive operation of at least one coil module of the MR coil, a filter, a surface wave trap or a decoupling circuit for decoupling the various coil elements included in the MR coil.

[0063] The electronics for controlling the supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, and 7.6* of the MR coil 7' can be integrated within the examination table. This significantly reduces the weight of the supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, and 7.6*. It is also conceivable to separate the electronics for controlling the supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, and 7.6* into a separate housing (not shown) to reduce the weight of the supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, and 7.6*. However, this increases the complexity of operating the supplementary coil modules 7.1*, 7.2*, 7.3*, 7.4*, 7.5*, and 7.6*.

[0064] At least two of the coil modules 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 are designed to be operated together with at least one associated supplementary coil module as a modular coil module. For example, during an angiographic examination of the leg of a patient as an examination subject U, reference can be made to Figure 1 The coil modules 7.4, 7.5 and 7.6 are operated as modular coil modules, optionally together with at least one associated supplementary coil module 7.4*, 7.5* or 7.6*.

[0065] Figure 2 A magnetic resonance imaging system 1 according to the present invention is schematically shown. The magnetic resonance imaging system includes an examination table L according to the present invention. The examination table L includes, for example, a table foot LF that supports the examination table and includes at least components of a radio frequency unit 7 for transmitting and receiving radio frequency signals. Furthermore, the magnetic resonance imaging system 1 may include a magnet unit 3 for generating a basic magnetic field and a gradient unit 5 for generating gradient fields.

[0066] exist Figure 2, these component units of the magnetic resonance system 1 are only roughly schematically shown. The radio frequency unit 7 includes a plurality of subunits, for example, at least one MR coil 7', which in turn includes, in particular, a plurality of coil modules according to the present invention, such as coil modules 7.1 and 7.2, again schematically shown here, and, for example, at least one supplementary coil module 7.1*.

[0067] To examine an examination subject U, for example a patient or also a phantom, the examination subject can be introduced on an examination couch L into a measurement volume of a magnetic resonance system 1 .

[0068] The control device 9 serves to control the magnetic resonance system 1 and can in particular control the gradient unit 5 by means of a gradient controller 5 ′ and the radio frequency unit 7 by means of a radio frequency transmit / receive controller 7 ′. The radio frequency unit 7 can include a plurality of channels on which signals can be transmitted or received.

[0069] The radio frequency unit 7, together with its radio frequency transmit / receive controller 7', is responsible for generating and radiating (transmitting) a radio frequency alternating field for manipulating spins in the region to be manipulated (e.g., the volume of interest R) of the examination subject U. The center frequency of the radio frequency alternating field, also referred to as the B1 field, is typically set as close as possible to the resonant frequency of the spins to be manipulated. Deviations from the center frequency to the resonant frequency are referred to as off-resonance. To generate the B1 field, a current controlled by the radio frequency transmit / receive controller 7' is applied to the HF coil in the radio frequency unit 7.

[0070] Furthermore, the control device 9 can include a combination unit 15 which is designed to coordinate the actuation of the coil module according to the invention or the coil module according to the invention together with at least one associated supplementary coil module as a modular coil module.

[0071] The calculation unit 13 included in the control device 9 is configured to perform all the calculation operations required for the necessary measurements and determinations. Intermediate results and results required for this or determined in this process can be stored in the memory unit S of the control device 9. The units shown here are not necessarily to be understood as physically separated units, but only as a subdivision into meaningful units, which can also be implemented, for example, with fewer or only a single physical unit.

[0072] Via the input / output device E / A of the magnetic resonance system 1 , a user can transmit control commands, for example also concerning coil modules and / or supplementary coil modules to be actuated, to the magnetic resonance system and / or results of the control device 9 , for example image data, can be displayed.

[0073] Regardless of the grammatical gender of a particular term, persons with male or female gender identities are included.

Claims

1. An examination bed having a magnetic resonance coil, characterized in that: The magnetic resonance coil comprises a plurality of coil modules which are integrated into the examination bed and can be controlled independently of one another. 2 . The examination couch according to claim 1 , wherein the coil modules are arranged side by side along an axial direction of the examination couch. 3 . The examination bed according to claim 1 , wherein the coil module is arranged at a position of the examination bed such that an intended examination region of an examination subject lying on the examination bed is located in a region of the coil module.

4. The examination bed according to claim 1 or 2, At least one coil module of the magnetic resonance coil includes a plurality of coil elements.

5. The examination bed according to claim 1 or 2, In this case, at least one coil module of the magnetic resonance coil is designed as a coil module that can be switched between a transmit mode and a receive mode.

6. The examination bed according to claim 1 or 2, In this case, at least one coil module of the magnetic resonance coil comprises at least one pure receive coil element.

7. The examination bed according to claim 1 or 2, At least one coil module of the magnetic resonance coil includes at least two receiving coil elements.

8. The examination bed according to claim 1 or 2, In this case, at least one coil module of the magnetic resonance coil comprises at least one pure transmit coil element.

9. The examination bed according to claim 1 or 2, At least one coil module of the magnetic resonance coil includes at least two transmitting coil elements.

10. The examination bed according to claim 1 or 2, In this case, at least one coil module of the magnetic resonance coil is designed to be combined with a geometrically adapted supplementary coil module to form an extended coil module.

11. The examination bed according to claim 10, At least one of the supplementary coil modules is designed as a supplementary coil module that can be switched between a transmit mode and a receive mode.

12. The examination bed according to claim 10, At least one of the supplementary coil modules comprises at least one pure receive coil element.

13. The examination bed according to claim 10, At least one of the supplementary coil modules includes at least two receive coil elements.

14. The examination bed according to claim 10, At least one of the supplementary coil modules includes at least one pure transmitting coil element.

15. The examination bed according to claim 10, At least one of the supplementary coil modules includes at least two transmitting coil elements.

16. The examination bed according to claim 10, When a supplementary coil module is combined with an associated coil module, a connection between the supplementary coil module and the associated coil module is formed such that the supplementary coil module is positioned at a defined position relative to the associated coil module.

17. The examination bed according to claim 10, The supplementary coil modules are designed specifically for the examination region to be examined, so that the distance between the supplementary coil modules and the examination region to be examined is as small as possible.

18. The examination bed according to claim 10, The supplementary coil modules are specifically designed for an examination region to be examined of an examination subject lying on the examination bed, which examination region corresponds to the position of the associated coil modules at which the examination region is located on the examination bed when the examination subject lies on the examination bed.

19. The examination bed according to claim 17, The examination regions for which the supplementary coil modules are specifically designed are the following examination regions: the head region, the chest region, the lower abdomen region, the prostate region, the thigh region, the knee region, the lower leg region or the foot region.

20. The examination bed according to claim 1 or 2, The electronics for electronically controlling the magnetic resonance coil are integrated into the interior of the examination table.

21. The examination bed according to claim 1 or 2, The electronic components integrated in the examination table include at least one of the following components: a preamplifier, a frequency converter, a transmit / receive switch for switching between transmit and receive operation of at least one coil module of the magnetic resonance coil, a filter, a surface wave trap, or a decoupling circuit for decoupling different coil elements comprised by the magnetic resonance coil.

22. The examination bed according to claim 10, The electronic components for controlling the supplementary coil modules are integrated into the interior of the examination table.

23. The examination bed according to claim 1 or 2, At least two of the coil modules are operated together as a modular coil module.

24. The examination bed according to claim 1 or 2, At least two of the coil modules are operated together with at least one associated supplementary coil module as a modular coil module.

25. The examination couch according to claim 3, wherein the examination object is a body region of a patient.

26. The examination bed according to claim 1 or 2, The electronic components for electronically controlling the magnetic resonance coil are integrated into an interior of a table foot of the examination table, wherein the table foot is included in the examination table and supports the examination table.

27. A supplementary coil module, characterized in that: The supplementary coil module is designed to be used as a supplementary coil module in an examination table according to any one of claims 10 to 19 or 22 .

28. A coil system, characterized in that The coil system comprises at least one coil module that can be integrated into an examination couch according to any one of claims 1 to 26 and at least one matching supplementary coil module according to claim 27 .

29. A magnetic resonance device (1), characterized in that The magnetic resonance system (1) comprises an examination couch (L) according to any one of claims 1 to 26.

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