Imaging apparatus and radiation delivery system

Abstract

The utility model relates to an imaging device and a radiation delivery system. The imaging device comprises one or more imaging sources; and the plurality of detectors are spliced and combined and are used for receiving the imaging beams emitted by the one or more imaging sources. According to the imaging device provided by the invention, the plurality of detectors are spliced to receive the imaging beams emitted by the imaging source, so that the design cost is low, and the flexibility is high.

Description

Technical Field

[0001] The present application relates to the field of imaging technology, and particularly to an imaging device and a radiation delivery system. Background Art

[0002] In the fields of radiation delivery (such as radiotherapy, radiation processing, radiation verification, etc.), medical diagnosis, industrial inspection, etc., there is an increasing demand for multimodal imaging technology. As a specific example, radiotherapy is a treatment in which a radiation beam passes through the anatomical structure of a patient to reach an injury or tumor (target area) in the patient's body. Radiotherapy plays an increasingly important role in tumor treatment. In order to irradiate the tumor site more precisely and better protect the critical organs around the tumor, a variety of imaging means are applied in the field of image-guided radiotherapy, such as digital radiography imaging, computed tomography imaging, etc.

[0003] However, the imaging systems designed in the current industry (such as multimodal imaging systems integrated with digital radiography imaging and computed tomography imaging) have a relatively high manufacturing cost and a relatively large manufacturing difficulty. Summary of the Utility Model

[0004] Based on this, it is necessary to provide an imaging device and a radiation delivery system for the above technical problems.

[0005] In a first aspect, an embodiment of the present application provides an imaging device, including:

[0006] One or more imaging sources; and

[0007] A plurality of detectors combined by splicing, configured to receive imaging beams emitted by one or more imaging sources.

[0008] In one embodiment, at least a part of the detection surface formed by splicing the plurality of detectors is folded or arc-shaped.

[0009] In one embodiment, the imaging device includes a first imaging source and a second imaging source, the second imaging source is disposed on either side of the axis where the first imaging source is located, or the first imaging source and the second imaging source are respectively disposed on both sides of a preset axis.

[0010] In one embodiment, the plurality of detectors are configured to receive different types of imaging beams emitted by one or more imaging sources.

[0011] In one embodiment, the imaging device includes a first imaging source and at least two second imaging sources, and the at least two second imaging sources are respectively disposed on both sides of the axis where the first imaging source is located.

[0012] In one embodiment, the imaging device includes an imaging source disposed at any position on the axis of symmetry of a tiled structure composed of a plurality of detectors; the imaging source is configured to emit different types of imaging beams.

[0013] In one embodiment, at least one of the plurality of detectors receives different types of imaging beams.

[0014] In one embodiment, the imaging device further includes at least one collimator, and each collimator in the at least one collimator is configured to adjust the imaging beams emitted by the corresponding imaging source in one or more imaging sources.

[0015] In one embodiment, at least two of the plurality of detectors are detachably tiled together.

[0016] In a second aspect, an embodiment of the present application provides a radiation delivery system, including: the imaging device provided in the first aspect as described above; and

[0017] a radiation delivery device configured to deliver a radiation beam to a target object according to the imaging image obtained by the imaging device.

[0018] Embodiments of the present application provide an imaging device and a radiation delivery system. The imaging device includes one or more imaging sources; and a plurality of detectors combined by tiling, and the plurality of detectors are configured to receive imaging beams emitted by the one or more imaging sources. The detectors in the imaging device configured to receive the imaging beams emitted by the one or more imaging sources are formed by tiling a plurality of detectors. Such a detector design is fast, low in cost, and highly flexible.

[0019] In addition, optionally, the imaging source included in the imaging device in this embodiment can generate different types of imaging beams, that is, different types (corresponding to different imaging modes) of imaging sources are integrated in one imaging device, which can improve the practicability of the imaging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 Schematic structural diagram of an imaging device provided for an embodiment;

[0022] Figure 2 Schematic structural diagram of an imaging device provided for another embodiment;

[0023] Figure 3 Schematic structural diagram of an imaging device provided for another embodiment;

[0024] Figure 4 Schematic structural diagram of an imaging device provided for another embodiment;

[0025] Figure 5 Schematic structural diagram of an imaging device provided for another embodiment;

[0026] Figure 6 Schematic structural diagram of an imaging device provided for another embodiment;

[0027] Figure 7 Schematic structural diagram of an imaging device provided for another embodiment;

[0028] Figure 8 Schematic structural diagram of an imaging device provided for another embodiment;

[0029] Figure 9 Schematic structural diagram of an imaging device provided for another embodiment;

[0030] Figure 10 Schematic structural diagram of an imaging device provided for another embodiment;

[0031] Figure 11 Schematic structural diagram of an imaging device provided for another embodiment;

[0032] Figure 12 Schematic structural diagram of an imaging device provided for another embodiment;

[0033] Figure 13 Schematic structural diagram of an imaging device provided for another embodiment;

[0034] Figure 14 Schematic structural diagram of an imaging device provided for another embodiment;

[0035] Figure 15 Schematic structural diagram of an imaging device provided for another embodiment;

[0036] Figure 16 Schematic structural diagram of an imaging device provided for another embodiment;

[0037] Figure 17 Schematic structural diagram of an imaging device provided for another embodiment;

[0038] Figure 18 Schematic structural diagram of an imaging device provided for another embodiment;

[0039] Figure 19 Schematic structural diagram of a radiation delivery system provided for one embodiment

[0040] Figure 20 Schematic diagram of the step flow of a radiation delivery method provided for an embodiment.

[0041] Description of the reference numerals in the drawings:

[0042] 10. Imaging device; 20. Radiation delivery system; 21. Radiation delivery device; 22. Radiation source; 23. Detection component; 24. Preset connection line; 100. Imaging source; 101. First imaging source; 102. Second imaging source; 200. Detector; 201. Axis of symmetry; 202. Axis where the target object is located; 300. Collimator. Detailed implementation manners

[0043] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0044] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. The terms "connection" and "coupling" as used in the present application, unless otherwise clearly specified and defined, both include direct and indirect connection (coupling). In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0045] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0046] First, before specifically introducing the technical solutions of the disclosed embodiments of the present application, the background technology or the technical evolution context based on which the embodiments of the present application are described will be introduced first. In the fields of radiation delivery (such as radiotherapy, radiation processing, radiation verification, etc.), medical diagnosis, industrial inspection, etc., the demand for multimodal imaging technology is increasing. For example, in the field of radiotherapy technology, radiotherapy is a treatment in which a radiation beam (i.e., the radiation beam delivered by a radiotherapy system) reaches the injury or tumor (i.e., the target area) in a patient's body through the patient's anatomical structure. Radiotherapy plays an increasingly important role in tumor treatment. In order to irradiate the tumor site more precisely and better protect the critical organs around the tumor, multiple imaging means or modalities can be applied in the field of image-guided radiation therapy (IGRT), including computed radiography (CR) imaging, digital radiography (DR) imaging, cone beam computed tomography (CBCT) imaging, fan beam computed tomography (FBCT) imaging, etc. Different imaging modalities have different imaging advantages and application scenarios. For example, the CR and DR imaging modalities have fast imaging speed, low radiation dose, high spatial resolution and low noise rate. For example, the CT imaging modality has a fast scanning speed, high image resolution, and very fine display of lesions or tissue morphology. In order to enable a system to have the advantages of different imaging modalities, a system integrated with CT imaging and DR imaging has been proposed. However, when CT imaging and DR imaging are integrated into the same system, it is very easy to occur the situation of insufficient physical space and mutual interference between components. Therefore, if CT imaging and DR imaging are to be integrated into the same system, the design cost will increase. In view of this, the present application provides an imaging device capable of integrating different imaging modalities. It should be noted that the imaging devices involved in multiple embodiments herein can be used alone as an imaging system for imaging (i.e., directly used for imaging a target object without combining with other devices), or can be combined with other devices such as various types of radiation delivery devices for image-guided radiation delivery or other processing.

[0047] Tomography, CBCT) imaging, fan beam computed

[0048] Tomography, FBCT) imaging, etc. Different imaging modalities have different imaging advantages and application scenarios. For example, the CR and DR imaging modalities have fast imaging speed, low radiation dose, high spatial resolution and low noise rate. For example, the CT imaging modality has a fast scanning speed, high image resolution, and very fine display of lesions or tissue morphology. In order to enable a system to have the advantages of different imaging modalities, a system integrated with CT imaging and DR imaging has been proposed. However, when CT imaging and DR imaging are integrated into the same system, it is very easy to occur the situation of insufficient physical space and mutual interference between components. Therefore, if CT imaging and DR imaging are to be integrated into the same system, the design cost will increase. In view of this, the present application provides an imaging device capable of integrating different imaging modalities. It should be noted that the imaging devices involved in multiple embodiments herein can be used alone as an imaging system for imaging (i.e., directly used for imaging a target object without combining with other devices), or can be combined with other devices such as various types of radiation delivery devices for image-guided radiation delivery or other processing.

[0049] The following uses specific embodiments to elaborate in detail on the technical solutions of the present application and how the technical solutions of the present application solve technical problems. The following several specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0050] Please refer to Figure 1 , this application provides an imaging device 10, including one or more imaging sources 100; and a plurality of detectors 200 combined by splicing. The plurality of detectors 200 can be used to receive the imaging beams emitted by one or more imaging sources 100.

[0051] The imaging device 10 may include one imaging source 100 or may include a plurality of imaging sources 100. Each imaging source 100 can emit one type of imaging beam or can emit different types of imaging beams. That is, different types of imaging beams are emitted from the imaging source 100, that is, the imaging source 100 has different imaging modes. As a non-limiting example, the imaging source 100 can be or include an X-ray source (such as an X-ray tube), a gamma-ray source, a neutron source, etc. An imaging beam refers to a ray beam used to image a target object. Different types of imaging beams can be imaging beams of different energies, can be imaging beams of different shapes, or can be imaging beams of different types. Optionally, different types of imaging beams can include conical imaging beams and fan-shaped imaging beams. Alternatively or additionally, different types of imaging beams can also include X-rays, gamma rays, and / or neutron beams, etc. This embodiment does not limit the number, type, and structure of the imaging sources 100 included in the imaging device 10, as well as the imaging beams emitted by the imaging source 100, as long as its function can be achieved.

[0052] In an optional embodiment, the imaging device 10 may at least include two imaging sources 100 (that is, in addition to these two imaging sources 100, one or more imaging sources of the same type or different types may also be included, which are not shown for the sake of clarity). In this embodiment, one imaging source 100 can emit a fixed type of imaging beam. Suppose one imaging source is a CT imaging source and the other imaging source is a DR imaging source.

[0053] In another optional embodiment, the imaging device 10 may include one imaging source 100, and this imaging source 100 can emit different types of imaging beams. For example, the imaging beam emitted by this imaging source 100 can be switched between an FBCT imaging beam (a fan-shaped imaging beam) and a CBCT imaging beam (a conical imaging beam). As a non-limiting example, a movable beam limiter 300 (for example, made of a material that can shield the imaging beam, such as tungsten alloy, depleted uranium, etc. that can shield X-rays) can be provided on the exit side of the imaging beam emitted by the imaging source 100, and the beam limiter 300 can be moved, the beam output parameters of the imaging source 100 can be adjusted, etc. according to the type of imaging beam to be emitted, so that the same imaging source 100 can be used to emit multiple types of imaging beams such as FBCT imaging beams and CBCT imaging beams.

[0054] The detector 200 may include various types of detectors for receiving imaging beams emitted by one or more imaging sources 100. The detector 200 may be an amorphous selenium detector or an amorphous silicon detector. The detector 200 may be a flat panel detector or a curved detector. A plurality of detectors 200 may be spliced and combined into a large detector. Each detector 200 included in the imaging device 10 may be composed of a plurality of array units or pixels. The detection surface of each detector 200 may be square or rectangular, or may be curved or other shapes. The detection surface of the detector formed by splicing a plurality of detectors 200 may be rectangular, square, curved or other irregular shapes, etc. This embodiment does not limit the number and type of the detectors 200, as well as the splicing method of the plurality of detectors 200 and the shape of the detection surface of the detector after splicing, as long as its function can be realized.

[0055] Each imaging source 100 may be disposed opposite to the corresponding detector 200. The imaging beams generated by each imaging source 100 may pass through the target object and be projected onto the corresponding detector 200. One imaging source 100 may correspond to one detector among a plurality of detectors 200, or may correspond to at least two detectors among a plurality of detectors 200. That is to say, the imaging beam emitted by one imaging source 100 may be projected onto one detector 200, or may be projected onto a plurality of detectors 200. In the case where the imaging device 10 includes a plurality of imaging sources 100, the detectors 200 corresponding to the plurality of imaging sources 100 may all be the same, or partially the same, or all different. That is to say, a plurality of imaging sources 100 may share one detector 200.

[0056] The imaging device 10 provided by the embodiment of the present application may include one or more imaging sources 100 and a plurality of detectors 200 spliced and combined. The plurality of detectors 200 may be used to receive different types of imaging beams emitted by one or more imaging sources 100. The detector in the imaging device 10 for receiving different types of imaging beams emitted by one or more imaging sources 100 is formed by splicing a plurality of detectors 200. Such a detector 200 design is fast, low in cost and high in flexibility.

[0057] In addition, optionally, the imaging source 100 included in the imaging device 10 in this embodiment may generate different types of imaging beams. That is to say, different types (corresponding to different imaging modes) of imaging sources are integrated in one imaging device 10, which can improve the practicability of the imaging device 10.

[0058] In one embodiment, at least a part of the detection surface formed by splicing a plurality of detectors 200 is folded or curved.

[0059] For example, when the imaging device 10 includes two detectors 200, the detection surface formed by splicing the two detectors 200 for imaging can be a folded shape, an arc shape, or other shapes (such as a shape formed by combining a flat panel detector and an arc detector). When the imaging device 10 includes more than two detectors 200, at least a part of the detection surface formed by splicing the multiple detectors 200 is a folded shape or an arc shape. That is to say, for example, a part of the detection surface formed by splicing the multiple detectors 200 is an arc shape, and other regions are a folded surface shape or a rectangular shape. Of course, the multiple detectors 200 can also be directly spliced to form a complete folded surface shape or arc shape.

[0060] In this embodiment, at least a part of the detection surface formed by splicing the multiple detectors 200 in the imaging device 10 is a folded shape or an arc shape. Such multiple detectors 200 can better receive the imaging beam emitted by the imaging source 100, so that a more accurate imaging image can be obtained. Moreover, the multiple detectors 200 with at least a part of the spliced detection surface being a folded shape or an arc shape occupy less volume and are convenient to be integrated in an imaging device 10. In addition, when the imaging device 10 is rotatable, compared with a detector having a planar shape, such a folded or arc-shaped configuration can reduce the centrifugal force and is easier to maintain dynamic balance, which helps to realize the high-speed rotation of the imaging device 10.

[0061] In one embodiment, the imaging device 10 includes a first imaging source 101 and a second imaging source 102. The second imaging source 102 is disposed on either side of the axis where the first imaging source 101 is located, or the first imaging source 101 and the second imaging source 102 are respectively disposed on both sides of a preset axis.

[0062] The first imaging source 101 and the second imaging source 102 can be two imaging sources that respectively emit fixed types of imaging beams and the emitted fixed types of imaging beams are different (exemplarily: the first imaging source 101 is a CT imaging source, and the second imaging source 102 is a DR imaging source), or they can be two imaging sources that can both emit different types of imaging beams (exemplarily: the first imaging source 101 and the second imaging source 102 can switchably emit CT imaging beams and DR imaging beams), or they can be two imaging sources where one emits a fixed type of imaging beam and the other can emit different types of imaging beams (exemplarily: the first imaging source 101 is a DR imaging source, and the second imaging source 102 can switchably emit CT imaging beams and DR imaging beams). This embodiment does not limit this, as long as its function can be realized.

[0063] Such as Figure 2As shown, when the imaging device 10 includes at least one first imaging source 101 and one second imaging source 102, the first imaging source 101 is set at any position on the symmetry axis 201 of the plurality of detectors 200, and the second imaging source 102 is set on either side of the axis where the first imaging source 101 is located. That is to say, the second imaging source 102 is set on either side of the symmetry axis 201 of the plurality of detectors 200. If the axis where the first imaging source 101 is located is horizontal, the second imaging source 102 can be set above the axis where the first imaging source 101 is located or below the axis where the first imaging source 101 is located.

[0064] In an alternative embodiment, the first imaging source 101 is a CT imaging source, the second imaging source 102 is a DR imaging source, the second imaging source 102 is set above the axis where the first imaging source 101 is located, the imaging beam emitted by the CT imaging source is projected onto two detectors 200, and the imaging beam emitted by the DR imaging source is projected onto one detector 200.

[0065] When the imaging device 10 includes one first imaging source 101 and one second imaging source 102, the first imaging source 101 and the second imaging source 102 are respectively set on both sides of a preset axis. The preset axis can be the symmetry axis 201 of the splicing structure formed by the plurality of detectors 200, or on both sides of the axis where the target object is located. The axis where the target object is located refers to the axis in the head-to-toe direction of the target object.

[0066] As Figures 3 to 7 shown, the first imaging source 101 and the second imaging source 102 are respectively set on both sides of the symmetry axis 201 of the splicing structure formed by three detectors 200. When the symmetry axis 201 of the splicing structure formed by the three detectors 200 is horizontal, the first imaging source 101 is set above the preset axis, and the second imaging source 102 is set below the preset axis.

[0067] Among them, it is assumed that the imaging device 10 includes three detectors 200, and both the first imaging source 101 and the second imaging source 102 can emit imaging beams corresponding to the CT imaging mode and the imaging beams corresponding to the DR imaging mode. Figure 3 and Figure 4 In, the imaging modes of the first imaging source 101 and the second imaging source 102 are both CT imaging modes, and the first imaging source 101 and the second imaging source 102 share one detector in the middle of the three detectors 200. That is to say, the imaging beam emitted by the first imaging source 101 is projected onto one detector in the middle of the three detectors 200 and one detector far from the first imaging source 101 among the three detectors 200; the imaging beam emitted by the second imaging source 102 is projected onto one detector in the middle of the three detectors 200 and one detector far from the second imaging source 102.

[0068] Figure 5 Among them, the imaging modes of the first imaging source 101 and the second imaging source 102 are both DR imaging modes. The imaging beam emitted by the first imaging source 101 is projected onto one of the three detectors 200 that is far from the first imaging source 101, and the imaging beam emitted by the second imaging source 102 is projected onto one of the three detectors 200 that is far from the second imaging source 102.

[0069] Figure 6 Among them, the imaging mode of the first imaging source 101 is the DR imaging mode, and the imaging mode of the second imaging source 102 is the CT imaging mode. The imaging beam emitted by the first imaging source 101 is projected onto one of the three detectors 200 that is far from the first imaging source 101, and the imaging beam emitted by the second imaging source 102 is projected onto one of the middle detectors of the three detectors 200 and one of the three detectors 200 that is far from the second imaging source 102.

[0070] Figure 7 Among them, the imaging mode of the first imaging source 101 is the CT imaging mode, and the imaging mode of the second imaging source 102 is the DR imaging mode. The imaging beam emitted by the first imaging source 101 is projected onto one of the middle detectors of the three detectors 200 and one of the three detectors 200 that is far from the first imaging source 101, and the imaging beam emitted by the second imaging source 102 is projected onto one of the three detectors 200 that is far from the second imaging source 102.

[0071] As Figures 8 to 13 shown, the first imaging source 101 and the second imaging source 102 are respectively arranged on both sides of the axis 202 where the target object is located. When the axis 202 where the target object is located is in the vertical direction, the first imaging source 101 is arranged on the left side of the preset axis, and the second imaging source 102 is arranged on the right side of the preset axis.

[0072] Among them, it is assumed that the imaging device 10 includes four detectors 200, and both the first imaging source 101 and the second imaging source 102 can emit imaging beams corresponding to the CT imaging mode and imaging beams corresponding to the DR imaging mode. Figure 8 Among them, the imaging modes of the first imaging source 101 and the second imaging source 102 are both CT imaging modes. The imaging beam emitted by the first imaging source 101 is projected onto two spliced detectors among the four detectors 200. The imaging beam emitted by the second imaging source 102 can be projected onto the other two spliced detectors among the four detectors 200.

[0073] Figure 9Among them, the imaging modes of the first imaging source 101 and the second imaging source 102 are both DR imaging modes. The imaging beam emitted by the first imaging source 101 is projected onto one of the two detectors arranged in a spliced manner among the four detectors 200, which is farther from the second imaging source 102. The imaging beam emitted by the second imaging source 102 can be projected onto one of the other two detectors arranged in a spliced manner among the four detectors 200, which is farther from the first imaging source 101.

[0074] Figure 10 Among them, the imaging modes of the first imaging source 101 and the second imaging source 102 are both DR imaging modes. The imaging beam emitted by the first imaging source 101 is projected onto one of the two detectors arranged in a spliced manner among the four detectors 200, which is closer to the second imaging source 102. The imaging beam emitted by the second imaging source 102 can be projected onto one of the other two detectors arranged in a spliced manner among the four detectors 200, which is closer to the first imaging source 101.

[0075] Assume that the imaging device 10 includes three detectors 200. The first imaging source 101 can emit an imaging beam corresponding to the DR imaging mode, and the second imaging source 102 can emit an imaging beam corresponding to the CT imaging mode, as well as an imaging beam corresponding to the DR imaging mode. Figure 11 Among them, the imaging beam emitted by the first imaging source 101 is projected onto one of the three detectors 200, and the imaging beam of the CT imaging mode emitted by the second imaging source 102 is projected onto two detectors arranged in a spliced manner among the three detectors 200.

[0076] Figure 12 Among them, the imaging beam emitted by the first imaging source 101 is projected onto one of the three detectors 200, and the imaging beam of the DR imaging mode emitted by the second imaging source 102 is projected onto one of the two detectors arranged in a spliced manner among the three detectors, which is closer to the first imaging source 101.

[0077] Figure 13 Among them, the imaging beam emitted by the first imaging source 101 is projected onto one of the three detectors 200, and the imaging beam of the DR imaging mode emitted by the second imaging source 102 is projected onto one of the two detectors arranged in a spliced manner among the three detectors 200, which is farther from the first imaging source 101.

[0078] In an optional embodiment, the imaging device 10 further includes a gantry, a first imaging source 101 and a second imaging source 102, and a plurality of detectors 200 are all disposed on the gantry (not shown in the figure), and the gantry is rotatable. For example, the gantry can be annular or arc-shaped, which is not limited herein. By controlling the rotation of the gantry, the setting (spatial) positions of the first imaging source 101, the second imaging source 102, and the plurality of detectors 200 can be changed, so that the setting manner of the first imaging source 101 and the second imaging source 102 in the imaging device 10 can be changed from Figures 3 to 7 the setting manner to, for example, Figures 8 to 13 the setting manner.

[0079] In this embodiment, when the imaging device 10 includes at least one first imaging source 101 and one second imaging source 102, various setting manners of the first imaging source 101 and the second imaging source 102 are provided, so that the user can perform settings according to the setting manner, which can improve the practicability of the imaging device 10.

[0080] In an embodiment, the imaging device 10 includes a first imaging source 101 and at least two second imaging sources 102, and the at least two second imaging sources 102 are respectively disposed on both sides of the axis where the first imaging source 101 is located.

[0081] The first imaging source 101 and the second imaging source 102 can be two imaging sources that respectively emit fixed types of imaging beams and the emitted fixed types of imaging beams are different (exemplarily: the first imaging source 101 is a CT imaging source, and the second imaging source 102 is a DR imaging source), or can be two imaging sources that can both emit different types of imaging beams (exemplarily: the first imaging source 101 and the second imaging source 102 can switchably emit CT imaging beams and DR imaging beams), or can be two imaging sources where one emits a fixed type of imaging beam and the other can emit different types of imaging beams (exemplarily: the first imaging source 101 is a DR imaging source, and the second imaging source 102 can switchably emit CT imaging beams and DR imaging beams). The plurality of second imaging sources 102 can be the same or different. This embodiment does not limit this, as long as its function can be achieved.

[0082] In an optional embodiment, the first imaging source 101 and the second imaging source 102 can emit imaging beams simultaneously, alternately, or successively.

[0083] The axis where the first imaging source 101 is located refers to the symmetry axis 201 of the multiple detectors 200. When the imaging device 10 includes one first imaging source 101 and at least two second imaging sources 102, the first imaging source 101 is set at any position on the symmetry axis 201 of the multiple detectors 200, and the at least two second imaging sources 102 are arranged on both sides of the axis where the first imaging source 101 is located. If the axis where the first imaging source 101 is located is in the horizontal direction, at least one second imaging source 102 is set above the axis where the first imaging source 101 is located, and the other at least one second imaging source 102 is set below the axis where the first imaging source 101 is located.

[0084] Suppose, when the imaging device 10 includes two second imaging sources 102, as Figures 14 to 16 shown, the two second imaging sources 102 are symmetrically arranged on both sides of the axis where the first imaging source 101 is located. The imaging mode of the first imaging source 101 is the CT imaging mode, and the imaging mode of the second imaging source 102 is the DR mode. Figure 14 In [the figure], the imaging device 10 includes two detectors 200. The imaging beam emitted by the first imaging source 101 is projected onto the two detectors 200, and the imaging beam emitted by the second imaging source 102 is projected onto one detector that is far from itself among the two detectors 200.

[0085] Figure 15 and Figure 16 In [the figure], the imaging device 10 includes three detectors 200. The imaging beam emitted by the first imaging source 101 is projected onto the three detectors 200, and the imaging beam emitted by the second imaging source 102 is projected onto one detector that is far from itself among the three detectors 200.

[0086] In this embodiment, when the imaging device 10 includes one first imaging source 101 and at least two second imaging sources 102, the setting methods of the first imaging source 101 and the second imaging source 102 are provided, so that users can set according to these setting methods, which can improve the practicability of the imaging device 10.

[0087] In one embodiment, the imaging device 10 includes one imaging source 100, which is set at any position on the symmetry axis 201 of the splicing structure composed of multiple detectors 200. One imaging source 100 is used to emit different types of imaging beams.

[0088] The imaging source 100 included in the imaging device 10 can emit different types of imaging beams. That is to say, this imaging source 100 can switch different imaging modes according to requirements.

[0089] Such as Figure 17 and Figure 18As shown, the imaging device 10 includes an imaging source 100, which can be switched between a CT imaging mode and a DR imaging mode. Among them, Figure 17 When the imaging mode of the imaging source 100 is the CT imaging mode, the imaging beam emitted by the imaging source 100 is fan-shaped. Figure 18 When the imaging mode of the imaging source 100 is the DR imaging mode, the imaging beam emitted by the imaging source 100 is conical.

[0090] In this embodiment, when it is provided that the imaging device 10 includes an imaging source 100, the setting method of the imaging source 100 and the working mode of the imaging source 100 are provided. The user can select the setting method for setting according to the actual application, which can improve the practicability of the imaging device 10. Moreover, using one imaging source 100 can emit different types of imaging beams, thereby reducing the volume of the imaging device 10 and making the imaging device 10 have higher practicability.

[0091] In one embodiment, at least one of the plurality of detectors 200 can receive different types of imaging beams.

[0092] The imaging device 10 includes a plurality of detectors 200, and at least one of the detectors 200 can receive different types of imaging beams emitted by one or more imaging sources 100. That is to say, at least one of the detectors 200 is shared by one or more imaging sources 100 with different imaging modes or modalities.

[0093] In an alternative embodiment, the plurality of detectors 200 include a first detector and a second detector. The first detector can be one or more, and similarly, the second detector can also be one or more. The first detector refers to a detector that can receive different types of imaging beams, and the second detector refers to a detector that can only receive a fixed type of imaging beam.

[0094] In this embodiment, at least one of the plurality of detectors 200 receives different types of imaging beams, which can effectively utilize the detectors 200, reduce the number of detectors 200 set, and thus reduce the volume of the imaging device 10, making the imaging device 10 have higher practicability.

[0095] As Figure 3 shown, the imaging device 10 further includes at least one beam limiter 300, and each beam limiter 300 in the at least one beam limiter 300 is used to adjust the imaging beam emitted by the corresponding imaging source in one or more imaging sources 100.

[0096] A collimator 300 is provided on one side of each imaging source included in the imaging device 10 that emits an imaging beam. That is, each collimator 300 is provided on a corresponding imaging source. The collimator 300 can be used to adjust the fan angle and width of the imaging beam emitted from the imaging source 100 so that the imaging source 100 operates in different imaging modes.

[0097] In an alternative embodiment, by adjusting the collimator 300 provided on the imaging source 100, the relevant parameters (such as energy and current) of the tube of the imaging source 100, and the relevant parameters (such as frame rate, resolution, gain mode, and image reading mode) of the corresponding detector 200 of the imaging source 100, the operating mode of the imaging source 100 is switched.

[0098] In this embodiment, a collimator 300 is provided on the imaging source 100, which can adjust the fan angle and width of the imaging beam emitted from the imaging source 100, enabling the user to adjust it according to actual applications, thereby improving the practicality of the imaging device 10.

[0099] In one embodiment, at least two of the plurality of detectors 200 are detachably spliced together.

[0100] As a non-limiting example, two adjacent detectors 200 among the plurality of detectors 200 included in the imaging device 10 are spliced together in a detachable manner. That is, if the imaging device 10 includes two detectors 200, these two detectors 200 are detachably spliced. If the imaging device 10 includes three detectors 200, two of these three detectors 200 can be fixedly spliced, and the two fixedly spliced detectors and the other detector 200 are detachably spliced; or two adjacent detectors 200 among these three detectors 200 are all detachably spliced. This embodiment does not limit the specific manner of the detachable splicing setting between the plurality of detectors 200, as long as its function can be achieved.

[0101] As a non-limiting example, the detachable splicing setting method may include detachable bolt and nut connection, mortise and tenon connection, plug and socket connection, magnetic attraction connection, etc. In an alternative embodiment, a connection component (not shown in the figure) may be provided at the connection end of one or more detectors 200, and the detector 200 can be detachably spliced with other detectors through this connection component, such as threaded splicing, snap splicing, hinge connection, etc.

[0102] In this embodiment, at least two of the multiple detectors 200 are detachably spliced together. In this way, the user can adjust the number of detectors 200 required according to actual application needs, making the imaging device 10 more practical and flexible.

[0103] However, not limited thereto, at least two of the multiple detectors 200 can also be spliced together in a non-detachable manner, such as by welding, bonding, etc.

[0104] As a non-limiting example, the detectors 200 can be automatically spliced and / or unspliced. For example, two detectors 200 can initially be located at two separate positions, and then, according to a user instruction or autonomously, the two detectors 200 are automatically controlled to approach each other, and finally, when they come into contact, they are spliced together by a splicing method such as lapping, snap-fitting, or magnetic attraction. Additionally or alternatively, when unsplicing is required, the two detectors 200 can automatically separate from the spliced state and become a separated mode.

[0105] The imaging source 100 and / or the detector 200 of the imaging device 10 can be moved to change the position. By changing the position of the imaging source 100 and / or the detector 200, combined with the splicing / unsplicing of the detector 200, the switching between different states of the imaging device 10 can be achieved. As an illustrative example, the first state of the imaging device 10 is as Figure 11 shown. Through the movement of one or both of the two imaging sources 100 and the corresponding detector 200, the imaging device 10 becomes the second state as Figure 5 shown. Then, the detectors 200 can be spliced together to form a detection module composed of three detectors 200 combined to perform imaging. However, not limited thereto, the state switching of the imaging device 10 can be determined as needed. For example, the imaging device 10 can be switched between different states as Figure 5 and Figure 13 shown, and can be switched between different states as Figure 2 and Figure 5 shown (for example, by deactivating or enabling / removing or inserting the corresponding detector 200).

[0106] Please refer to Figure 19 , an embodiment of the present application provides a radiation delivery system 20, which includes: the imaging device 10 provided in the above embodiment; and a radiation delivery device 21 for delivering a radiation beam to a target object according to the imaging image obtained by the imaging device 10.

[0107] An imaging beam is emitted by the imaging source 100 in the imaging device 10. The imaging beam passes through the target object and is projected onto the corresponding detector 200, enabling an imaging image to be obtained. The radiation delivery device 21 can identify the target area in the target object based on the imaging image obtained by the imaging device 10, and thus deliver a radiation beam to the target object.

[0108] If the radiation delivery system 20 provided in the embodiment of the present application includes the imaging device 10 provided in the above embodiment, then the radiation delivery system 20 has all the beneficial effects of the imaging device 10, which will not be elaborated here. In addition, the radiation delivery system 20 can deliver the radiation beam to the target object more accurately based on the imaging image obtained by the imaging device 10, thereby improving the practicality and reliability of the radiation delivery system 20.

[0109] Please continue to refer to Figure 19 , in an optional embodiment, the radiation delivery device 21 includes a radiation source 22 and a detection component 23. The radiation source 22 and the detection component 23 can be relatively arranged.

[0110] The radiation source 22 is used to deliver a radiation beam, and the radiation beam passes through the target object and is projected onto the detection component 23. As an example, the detection component 23 can generate an image and / or a detection value of the radiation dose by analyzing the received signal. The radiation delivery device 21 can determine the actual radiation dose distribution of the radiation beam in the target object based on the image and / or the radiation dose detection value, and further obtain the difference between the actual radiation dose distribution and the planned radiation dose distribution, and can also determine whether the radiation beam delivered by the radiation source 22 conforms to the planned radiation beam determined by the pre-designed plan. The detection component 23 can be an Electronic Portal Imaging Device (EPID). In this embodiment, the types and structures of the radiation source 22 and the detection component 23 are not limited as long as their functions can be realized.

[0111] The connection line through which the radiation beam delivered by the radiation source 22 passes (i.e., the connection line from the center of the radiation source 22 to the center of the detection component 23) is a preset connection line 24, and each imaging source 100 and the corresponding detector 200 in the imaging device 10 are relatively arranged on both sides of the preset connection line 24.

[0112] In an embodiment, an imaging method is provided. The method is applied to the imaging device provided in the above embodiment, and the method includes:

[0113] Using the imaging device to image the target object to obtain different types of imaging images.

[0114] An imaging source in an imaging device emits an imaging beam, which passes through a target object and projects onto a detector; by analyzing and processing the signals received by the detector, an imaging image is obtained. Since the imaging source in the imaging device can emit different types of imaging beams, different types of imaging images can be obtained through the imaging device.

[0115] The imaging method provided in this embodiment is implemented using an imaging device, so this imaging method has all the beneficial effects of the imaging device, which will not be elaborated here.

[0116] In one embodiment, as Figure 20 shown, a radiation delivery method is provided. This method is applied to the radiation delivery system provided in the above embodiment, and this method includes:

[0117] Step 201: Use the imaging device in the radiation delivery system to image the target object to obtain different types of imaging images.

[0118] For the specific description of using the imaging device to image the target object, reference can be made to the description of the above embodiment, which will not be elaborated here.

[0119] Step 202: Use the radiation delivery device in the radiation delivery system to deliver a radiation beam to the target object according to different types of imaging images.

[0120] After the radiation delivery system obtains different types of imaging images determined by the imaging device, the target area in the target object can be determined based on this imaging image. Thus, based on the position of the determined target area and the critical organs around the target area, a radiation beam is delivered to the target object.

[0121] The radiation delivery method provided in this embodiment is applied to the radiation delivery system provided in the above embodiment, so this radiation delivery has all the beneficial effects of the radiation delivery system, which will not be elaborated here.

[0122] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as within the scope described in this specification.

[0123] The above-described embodiments only represent several implementation manners of the present application. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An imaging device, characterized in that, Comprising: One or more imaging sources (100); And A plurality of detectors (200) combined by splicing, for receiving imaging beams emitted by the one or more imaging sources (100).

2. The imaging device according to claim 1, wherein At least a part of the detection surface formed by splicing the plurality of detectors (200) is folded or arc-shaped.

3. The imaging device according to claim 1, characterized in that, Comprising a first imaging source (101) and a second imaging source (102), the second imaging source (102) is disposed on either side of the axis where the first imaging source (101) is located, or the first imaging source (101) and the second imaging source (102) are respectively disposed on both sides of a preset axis.

4. The imaging device according to claim 1, wherein The plurality of detectors (200) are used for receiving different types of imaging beams emitted by the one or more imaging sources (100).

5. The imaging device according to claim 1, wherein Comprising a first imaging source (101) and at least two second imaging sources (102), the at least two second imaging sources (102) are respectively disposed on both sides of the axis where the first imaging source (101) is located.

6. The imaging device according to claim 1, wherein Comprising an imaging source (100), disposed at any position on the axis of symmetry of the splicing structure formed by the plurality of detectors (200); the imaging source (100) is used for emitting different types of imaging beams.

7. The imaging device according to any one of claims 1-6, characterized in that, At least one of the plurality of detectors (200) receives different types of imaging beams.

8. The imaging device according to any one of claims 1-6, characterized in that, Further comprising at least one beam limiter (300), each beam limiter (300) in the at least one beam limiter (300) is used for adjusting the imaging beam emitted by the corresponding imaging source in the one or more imaging sources (100).

9. The imaging device according to claim 1, wherein At least two of the plurality of detectors (200) are detachably spliced together.

10. A radiation delivery system, characterized in that, Comprising: An imaging device (10) according to any one of claims 1 to 9; And A radiation delivery device (21), for delivering a radiation beam to a target object according to the imaging image obtained by the imaging device (10).

Images