CN116509433A - Scanning bed, positioning method, breast imaging CT device and imaging method - Google Patents
Scanning bed, positioning method, breast imaging CT device and imaging method Download PDFInfo
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- CN116509433A CN116509433A CN202310806362.9A CN202310806362A CN116509433A CN 116509433 A CN116509433 A CN 116509433A CN 202310806362 A CN202310806362 A CN 202310806362A CN 116509433 A CN116509433 A CN 116509433A
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- 210000000481 breast Anatomy 0.000 title claims abstract description 120
- 238000003384 imaging method Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 19
- 210000000689 upper leg Anatomy 0.000 claims abstract description 12
- 210000003127 knee Anatomy 0.000 claims description 9
- 210000000038 chest Anatomy 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 239000007779 soft material Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 9
- 230000004308 accommodation Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 210000000988 bone and bone Anatomy 0.000 description 5
- 210000001015 abdomen Anatomy 0.000 description 3
- 208000030270 breast disease Diseases 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 206010040007 Sense of oppression Diseases 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008058 pain sensation Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 210000001562 sternum Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/04—Positioning of patients; Tiltable beds or the like
- A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body
- A61B6/0435—Supports, e.g. tables or beds, for the body or parts of the body with means for imaging suspended breasts
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/502—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of breast, i.e. mammography
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
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- Radiology & Medical Imaging (AREA)
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- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
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- Oral & Maxillofacial Surgery (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The invention provides a scanning bed, a positioning method, a breast imaging CT device and an imaging method. The scanning bed may include: a receiving portion for receiving an upper body of the subject, and having a shape configured to be arc-concave from an edge to a center; an opening portion provided at a lowest position of the accommodating portion and into which a breast of a subject is inserted; a support portion provided at a rear side of the receiving portion for supporting a crotch position or a crotch vicinity position of the subject; a first inclined portion extending downward toward the front side with the support portion as a starting point, and a surface of the first inclined portion constituting a part of a surface of the accommodating portion; and a second inclined portion extending downward toward the rear side with the support portion as a starting point, a surface of the second inclined portion contacting at least a thigh portion of the subject.
Description
Technical Field
The invention relates to the field of breast imaging, in particular to a scanning bed, a positioning method, a breast imaging CT device and an imaging method.
Background
In breast disease treatment, early screening of the breast, etc., imaging of the breast is required. During breast imaging, the positioning of the breast will have an impact on the imaging result.
One breast imaging modality currently employed is a patient using a horizontal examination modality in which even a carefully positioned patient's breast is compressed, particularly around the mid-area of the sternum. This compression will lead to inaccuracy in breast imaging. Moreover, in some breast imaging methods, it is difficult to maintain the posture of the patient, and the patient is in a prone position, and in many cases, other parts of the body will be pressed, resulting in pain sensation, etc.
Disclosure of Invention
In order to solve one of the above technical problems, the present invention provides a scanning bed, a positioning method, a breast imaging CT apparatus and an imaging method.
According to one aspect of the present invention, there is provided a scanning bed for use in a breast imaging CT apparatus for supporting a subject, comprising: a receiving portion for receiving an upper body of a subject, and having a shape configured to be arc-concave from an edge to a center; an opening portion provided at a lowest position of the accommodating portion and into which a breast of a subject is inserted; a support portion provided at a rear side of the receiving portion for supporting a crotch position or a crotch vicinity position of the subject; a first inclined portion extending downward toward a front side with the support portion as a starting point, and a surface of the first inclined portion constituting a part of a surface of the accommodating portion; and a second inclined portion extending downward toward the rear side with the support portion as a starting point, a surface of the second inclined portion contacting at least a thigh portion of the subject.
According to the scanner bed of at least one embodiment of the present invention, the distance between the front side edge of the accommodating portion and the supporting portion is set to be longer than the length of the upper body of the subject.
According to the scanner bed of at least one embodiment of the present invention, a distance between left and right edges of the receiving portion is set to be larger than a width of shoulders of the subject.
According to the scanning bed of at least one embodiment of the present invention, the receiving portion has a disk shape.
According to the scanning bed of at least one embodiment of the present invention, the outer periphery of the opening portion is provided with a horizontal surface, the receiving portion is arcuately recessed from a rim thereof to the horizontal surface, and the first inclined portion extends to the horizontal surface.
According to the scanner bed of at least one embodiment of the present invention, the distance between the front side edge of the accommodating portion and the center of the opening portion is longer than the length of the portion above the chest of the subject.
According to the scanning bed of at least one embodiment of the present invention, a distance between a center of the opening and a vertex of the supporting portion is 300mm to 500mm.
According to the scanning bed of at least one embodiment of the present invention, a distance between the vertex of the supporting portion and the lower edge of the second inclined portion is 350mm to 500mm.
According to the scanning bed of at least one embodiment of the present invention, the second inclined portion has an inclination angle of 25 ° to 35 ° with respect to the horizontal plane.
According to the scanning bed of at least one embodiment of the present invention, the inclination angle of the second inclined portion is larger than the inclination angle of the first inclined portion.
According to the scanning bed of at least one embodiment of the present invention, a height difference between a lowest point of the first inclined portion and an apex of the supporting portion is 20mm to 40mm.
According to the scanning bed of at least one embodiment of the present invention, a height difference between a lowest point of the second inclined portion and an apex of the supporting portion is 150mm to 250mm.
The scan bed according to at least one embodiment of the invention further comprises a recess having a concave shape with respect to a lower surface of the scan bed for accommodating at least a thigh portion of a subject.
According to the scanner bed of at least one embodiment of the present invention, the support portion and the second inclined portion are disposed in the concave portion, and an apex of the support portion is disposed lower than an upper surface of the scanner bed.
According to the scanning bed of at least one embodiment of the present invention, the opening portion is circumferentially provided with a breast positioning portion, wherein the breast positioning portion is made of a soft material.
According to the scanning bed of at least one embodiment of the present invention, the breast positioning portion is disposed at a position lower than the edge of the opening portion.
A scanning bed according to at least one embodiment of the invention is made of high strength plastic, glass fibre reinforced plastic or carbon fibre.
According to the scanning bed of at least one embodiment of the present invention, the upper surface of the scanning bed is provided with a through hole, and after the scanning bed is placed on a frame structure, the scanning bed is fixed to the frame structure by an embedded part in the through hole and a bolt.
The scanner bed according to at least one embodiment of the present invention further includes a knee placement portion continued to a lower edge of the second inclined portion so as to be kneeled by the subject's knee.
According to another aspect of the present invention, there is provided a positioning method employing the scanning bed as described above, comprising: so that the subject is positioned on the scanning bed, wherein the crotch position or the position near the crotch of the subject is supported on the support portion; inserting a breast of a subject into the opening; and the same side arm of the tested person inserted into the breast is put back to the back.
According to still another aspect of the present invention, there is provided a breast imaging CT apparatus comprising: a scanning bed as claimed in any one of the preceding claims; a source for emitting X-rays; and a detector for receiving X-rays from the source, wherein the source and the detector are controlled to be rotatable about the breast under test for breast imaging.
According to still another aspect of the present invention, there is provided a breast imaging method employing the breast imaging CT apparatus as described above, comprising: so that the subject is positioned on the scanning bed and the crotch position or the position near the crotch of the subject is supported on the support; positioning one side breast of a subject into the opening, and the same side arm of the subject inserted into the breast is put back to the back; controlling the source and detector to rotate around the one breast to detect the one breast; positioning the other side breast of the subject into the opening, and the same side arm of the subject inserted into the breast is put back to the back; the source and detector are controlled to rotate about the other breast to detect the other breast.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.
FIG. 1 is a top view of a scanning bed according to one embodiment of the invention.
Fig. 2 is a perspective view of a scanning bed according to one embodiment of the invention.
Fig. 3 is a cross-sectional view of a scanning bed according to one embodiment of the invention.
FIG. 4 is a schematic diagram of the use of a scanning bed according to one embodiment of the invention.
Fig. 5 is a cross-sectional view of a scanning bed according to one embodiment of the invention.
Fig. 6 is a perspective view of a scanning bed according to one embodiment of the invention.
Fig. 7 is a cross-sectional view of a scanning bed according to one embodiment of the invention.
Fig. 8 is a flow chart of a positioning method according to an embodiment of the invention.
Fig. 9 is a flowchart of an imaging method according to one embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the substances, and not restrictive of the invention. It should be further noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without collision. The technical scheme of the present invention will be described in detail below with reference to the accompanying drawings in combination with embodiments.
Unless otherwise indicated, the exemplary implementations/embodiments shown are to be understood as providing exemplary features of various details of some of the ways in which the technical concepts of the present invention may be practiced. Thus, unless otherwise indicated, the features of the various implementations/embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concepts of the present invention.
The use of cross-hatching and/or shading in the drawings is typically used to clarify the boundaries between adjacent components. As such, the presence or absence of cross-hatching or shading does not convey or represent any preference or requirement for a particular material, material property, dimension, proportion, commonality between illustrated components, and/or any other characteristic, attribute, property, etc. of a component, unless indicated. In addition, in the drawings, the size and relative sizes of elements may be exaggerated for clarity and/or descriptive purposes. While the exemplary embodiments may be variously implemented, the specific process sequences may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in reverse order from that described. Moreover, like reference numerals designate like parts.
When an element is referred to as being "on" or "over", "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element, there are no intervening elements present. For this reason, the term "connected" may refer to physical connections, electrical connections, and the like, with or without intermediate components.
For descriptive purposes, the invention may use spatially relative terms such as "under … …," under … …, "" under … …, "" lower, "" above … …, "" upper, "" above … …, "" higher "and" side (e.g., as in "sidewall") to describe one component's relationship to another (other) component as illustrated in the figures. In addition to the orientations depicted in the drawings, the spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture. For example, if the device in the figures is turned over, elements described as "under" or "beneath" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "below" … … can encompass both an orientation of "above" and "below". Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising," and variations thereof, are used in the present specification, the presence of stated features, integers, steps, operations, elements, components, and/or groups thereof is described, but the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximation terms and not as degree terms, and as such, are used to explain the inherent deviations of the detected, calculated, and/or provided values that would be recognized by one of ordinary skill in the art.
According to one embodiment of the present invention, a scanning couch for a breast imaging CT apparatus is provided. Fig. 1 and 2 show schematic views of a scanning bed for a breast imaging CT apparatus according to an embodiment of the present invention. Fig. 1 is a plan view of a scanning bed for a breast imaging CT apparatus, and fig. 2 is a perspective view of a scanning bed for a breast imaging CT apparatus.
The scanning bed according to the present invention can be used as a part of a breast imaging CT apparatus, and a subject can lie down on the scanning bed and position a breast in an opening during a breast imaging process, thereby realizing breast imaging scanning by a source and a detector provided below the scanning bed, thereby realizing early screening of breast diseases, diagnosis of breast diseases, and the like.
The scanning bed for the breast imaging CT apparatus will be described in detail with reference to fig. 1 and 2.
As shown in fig. 1 and 2, the breast imaging CT apparatus scanner bed 100 may be integrally formed, for example, by integrally forming a plastic material, a glass fiber reinforced plastic material, a carbon fiber, or the like. Alternatively, the scanning bed 100 may be assembled in several parts.
The scan bed 100 may include a receiving portion 110, a supporting portion 120, a first inclined portion 130, and a second inclined portion 140.
As shown in fig. 2, the receiving portion 110 of the scan bed 100 may be a concave portion formed on the scan bed 100, for example, in a concave shape with respect to the upper surface 101 of the scan bed 100, for example, in an arc shape from the edge toward the center. An opening 111 may be provided at a suitable position of the accommodating portion 110, for example, the opening 111 may be at the lowermost position of the accommodating portion 110. For example, the opening 111 may be formed at a substantially middle position of the receiving part 110, for example, the opening may be formed at a middle position of left and right side edges of the receiving part 110 with a first interval distance from a front side edge of the receiving part 110 and a second interval distance from the supporting part 120 (located at a rear side of the opening 111). As shown in fig. 1, wherein the front direction may be set to the-X direction, the rear direction may be set to the X direction, the right direction may be set to the Y direction, and the left direction may be set to the-Y direction. In addition, from the perspective of the subject lying on the scanning bed, the front direction may be the head direction of the subject, the rear direction may be the leg direction of the subject, the right direction may be the right arm direction of the subject, and the left direction may be the left arm direction of the subject.
The receiving portion 110 is inclined toward the opening 111 along an edge 112 of the receiving portion, thereby forming a concave shape. At least a part of the shape is similar to a disk shape or the like, and the shape of the accommodating portion may be not only a disk shape but also a square shape, a circular shape or the like. The accommodating portion 110 is integrally sized to accommodate the upper body of the subject, that is, the upper body of the subject may be integrally accommodated to the accommodating portion 110 during the detection of the subject. As a preferred embodiment, the head of the subject may also be accommodated in the accommodation portion 110. When the subject is lying on the scanning bed, the upper body of the subject is accommodated in the accommodating portion 110 or the upper body and the head of the subject are accommodated in the accommodating portion 110. Compared with the scanning bed for the breast imaging CT device in the prior art, the scanning bed for the breast imaging CT device according to the application can not press the root of the breast. The prior art scanning bed is provided with only an opening allowing the insertion of the breast, in which case compression will be created on the root of the breast, which will cause detection errors. In this application, the concave accommodation portion is provided to accommodate the upper body of the subject, so that the root of the breast is prevented from being pressed, and the breast is prevented from being inserted into the opening 111 in a natural state, so that accurate detection can be performed by the source and the detector below the opening 111.
As described above, the center position of the opening 111 has the second distance from the support 120. The first inclined portion 130 and the second inclined portion 140 are respectively located at both sides of the supporting portion 120, for example, the first inclined portion 130 is located in a front side direction of the supporting portion 120, and the second inclined portion 140 is located in a rear side direction of the supporting portion 120. The first inclined portion 130 is inclined downward (inclined in the forward-downward direction) toward the opening 111 with the support portion 120 as a starting point. The downward direction in this application refers to the direction when the subject is lying down. The second inclined portion 140 is inclined downward (inclined in a rearward downward direction) in a rearward direction from the support portion 120. Fig. 3 shows a downward cross-section along the X-direction of fig. 1, with a section line passing through the center of the opening 111. As shown in fig. 3, in the sectional view, the first inclined portion 130, the supporting portion 120, and the second inclined portion 140 are formed in an arch-like shape.
In this application, the receiving part 110 may have an overall concave shape. For example, the front side surface of the receiving part 110 may extend to the rim of the opening part 111 in an arc-shaped concave manner with the front side rim as a starting point, and the left side surface and the right side surface of the receiving part 110 may extend to the rim of the opening part 111 in an arc-shaped concave manner with the left side rim and the right side rim as starting points, respectively, and further, the first inclined part 130 extends to the rim of the opening part 111 in an arc-shaped concave manner with the supporting part 120 as a starting point. As another example, a horizontal surface may be provided in the vicinity of the opening portion 111, that is, the horizontal surface extends outwardly from the edge of the opening portion 111 in a planar manner (e.g., a horizontal planar manner) a distance to form the horizontal surface, and the front side surface of the receiving portion 110 is arcuately recessed from the front side edge to the horizontal surface, and the left side surface and the right side surface of the receiving portion 110 are arcuately recessed from the left side edge and the right side edge to the horizontal surface, respectively, and the first inclined portion 130 is arcuately recessed from the supporting portion 120 to the horizontal surface. In this application, the surface of the first inclined portion 130 serves as the rear side surface of the receiving portion.
The opening 111 is provided at the lowest position of the accommodating portion 110, and is sized to allow insertion of the breast of the subject. The opening 111 may be provided with a breast positioning portion 113 in a circumferential direction, wherein the breast positioning portion may be made of a soft material such as silicone. The position of the breast positioning portion 113 is set to be lower than the position of the edge of the opening portion 111 or in a flush manner, i.e., the breast positioning portion 113 may be set at a position below the edge of the opening portion 111.
As described above, the first inclined portion 130 extends downward from the support portion 120 toward the front side direction to reach the above-described opening portion or horizontal surface. As shown in fig. 3, a height between the lowest point of the first inclined portion 130 and the vertex of the supporting portion 120 may be denoted as H1, wherein the height H1 may be 20mm to 40mm, preferably may be 25mm to 35mm, more preferably may be 25mm to 30mm, for example may be 27mm. In this application, the downward inclination angle of the first inclined part 130 may be the same as the downward inclination angle of the front side surface of the receiving part. The downward inclination angle of the first inclined portion 130 is smaller than that of the second inclined portion 140.
The second inclined part 140 extends downward from the support part 120 toward the rear side direction, and as shown in fig. 3, a height between a lowest point of the second inclined part 140 and an apex of the support part 120 may be denoted as H2, wherein the height H2 may be 150mm to 250mm, preferably may be 180mm to 220mm, and may be 197mm, for example. As shown in fig. 3, the inclination angle of the second inclined part 140 may represent α1, wherein the inclination angle α1 may be 25 ° to 35 °, for example, may be 30 °.
The scanning bed according to the invention may further comprise a lower recess 150, which lower recess 150 may be arranged to accommodate at least the thigh portion of the subject. Referring to fig. 2, for example, the scanning bed 100 may include an upper surface 101, side surfaces 102, and a rear surface 103. The side surface 102 extends downward from the upper surface 101 to a surface formed by the second inclined portion 140. Wherein the side surfaces 102 are respectively formed at both sides of the second inclined part 140, so that the concave part 150 can be formed.
As shown in fig. 3, the supporting portion 120 is disposed at a height lower than the upper surface 101 of the scan bed 100.
As shown in fig. 3, the length of the scan bed 100 in the front-rear direction may include three parts. The first portion is a distance from the front edge 112 of the accommodating portion 110 to the center of the opening 111, and may be represented as a first distance D1. The second portion is a distance from the center of the opening 111 to the apex of the supporting portion 120, and may be represented as a second distance D2. The third portion is the distance from the apex of the support 120 to the rear surface 103 (lower/rear edge of the second sloped portion) of the scanning bed 100, and may be denoted as a third distance D3.
In this application, the first distance D1 may be set to be greater than a length above the breast of the subject so as to accommodate an above-the-breast portion of the subject, which may be a portion from the breast to the top of the head of the subject, at the front side surface of the accommodating portion 110. The second distance D2 may be set to 300mm to 500mm, preferably 350mm to 450mm, more preferably 400mm to 450mm, and for example, 421mm, and the second distance D2 is set to allow the abdomen of the subject to be accommodated on the accommodation portion 110. The third distance D3 may be set to 350mm to 500mm, preferably 400mm to 500mm, for example 449mm, and the portion where the third distance D3 is located is mainly for accommodating the thigh portion of the subject.
The shape of the accommodating portion may be an ellipse, a rectangle, or the like. Wherein the distance from the left side edge to the right side edge of the receiving part may be set to be greater than the shoulder width of the subject. In addition, the distance between the left and right sides of the concave portion 150 may be set to be greater than the width of the two thighs of the subject.
When the subject lies on the scanning bed with the position near the crotch bone of the subject at the position of the support 120, the abdomen above the crotch bone of the subject may be accommodated in the accommodation portion 110 along the first inclined portion 130, the thigh portion below the crotch bone of the subject may be accommodated in the concave portion 150 along the second inclined portion 140, the breast of the subject may be inserted into the opening portion, and the upper portion of the chest of the subject may be fitted on the front surface of the accommodation portion 110. Through the setting of the scanning bed of this application, can make the testee who is in the scanning bed and shoot keep the gesture of standing up chest, can make the breast outstanding like this, avoid receiving the oppression at the root of shooting in-process breast. In the prior art, although a breast opening is also provided, the root of the breast must be inevitably pressed during photographing, thereby causing photographing errors. Fig. 4 is a schematic view showing a state in which a subject is in a scanning bed. According to the scan bed of the present application, when a subject is photographed on the scan bed, since the crotch bone of the subject is supported on the supporting portion 120 and the abdomen, crotch bone, and thigh of the subject form an arch shape, the subject is prevented from sliding backward or forward from the scan bed. And by providing the curved concave front side surface to support the portion above the breast of the subject, it is possible to better prevent the subject from slipping into the accommodating portion. By the relevant arrangement of the front side surface and the support portion or the like, it is possible to better position the breast of the subject at the position of the opening portion, and it is possible to prevent the subject from slipping or moving or the like after positioning, thereby preventing the breast positioning procedure that has been completed from being affected.
Furthermore, as shown in fig. 2 and 4, an edge portion 160 may be further provided between the edge 112 of the receiving portion 110 and the outer side surface of the scanning bed, wherein the edge portion 160 is a part of the upper surface 101 of the scanning bed 100. As shown in fig. 4, when the subject detects, the arm of the subject can be placed on the edge 160, thereby performing a better detection. This will be described in detail in the following.
The scan bed 100 as shown in fig. 2 may be formed by a split structure. For example, the upper surface of the scanner bed 100 may be mounted to a frame structure of the scanner bed to form the scanner bed. The upper surface of the scanning bed 100 is then mounted to a frame structure. Wherein the upper surface of the scanning bed may be formed of a suitable material such as high strength plastic, glass fiber reinforced plastic, carbon fiber, etc. Fig. 5 shows a cross-sectional view of a scanning bed according to the present application. As shown in fig. 5, the bed body of the scanning bed 100 may be mounted to a frame structure (the frame structure is inside the housing after the bed body is mounted). As shown in fig. 2, after the bed is placed to the frame structure, the bed may be fixed by bolts 300 and embedments 400. For example, as an alternative embodiment, the embedment 400 may be pre-positioned in the bed, while one end of the bolt 300 may be fixedly coupled to the embedment, and the other end of the bolt 300 may be mounted to a frame structure positioned within the bed.
According to a further embodiment of the present application, there is also provided a breast imaging CT apparatus. Fig. 6 shows a schematic view of a breast imaging CT device according to one embodiment of the present application.
As shown in fig. 6, the breast imaging CT apparatus may further include a knee placement part 500, wherein the knee placement part 500 is continuous with the second tilting part 140. When the subject performs detection, the knee of the subject may be placed on the knee placement unit 500. According to the scanning bed structure of the application, the horizontal detection mode in the prior art can be changed into a kneeling horizontal detection mode. By kneeling, the test can be performed by the subject.
Fig. 7 shows a cross-sectional view of the breast imaging CT apparatus shown in fig. 6 so as to show the internal structure thereof. As shown in fig. 7, a breast imaging CT apparatus may include a source 610 and a detector 620, wherein the source 610 and the detector 620 may be disposed opposite each other. The source 610 is configured to emit X-rays and the detector 620 is configured to receive X-rays that pass through the breast under test. The source 610 and detector 620 may be mounted directly or indirectly on a rotating platform 630, the rotating platform 630 being disposed on a rotating bearing 640, and the rotating bearing 640 being mounted on a base. After the breast of the subject is inserted into the opening 111, the source 610 and the detector 620 are rotated around the breast to be measured. The rotating platform 630 may be rotated, for example, by controlling the rotating bearings 640, thereby rotating the source 610 and detector 620. According to the breast imaging CT apparatus of the present application, it may not be provided in a lifting form. For example, in some breast imaging CT apparatuses of the prior art, after a subject is in place on a scanning bed, the scanning bed is lifted and lowered, which causes inconvenience in use. The breast imaging CT device does not need to be arranged in a lifting mode, and the height can be arranged in a lower mode.
According to a further embodiment of the present invention, a method of positioning breast imaging is provided. Wherein the method uses a scanning bed as described above or a breast imaging CT device as described above. The positioning method is used for accurately positioning the breast of the subject into the opening portion so as to realize imaging of the breast.
Fig. 8 illustrates a positioning method according to one embodiment of the present application. As shown in fig. 8, the positioning method M800 may include the following.
In step S802, the subject is positioned on the scanning bed, and the crotch position or the position near the crotch of the subject is supported on the support portion. So that the thigh portion of the subject can be positioned in the concave portion and the upper body can be positioned in the accommodation portion.
In step S804, one breast of the subject is inserted into the opening.
In step S806, the same-side arm of the subject inserted into the breast is made to back to the back, and the other-side arm may be lifted upward, put aside, or put back to the back. The body of the testee is finely adjusted, so that the accurate positioning of the breast can be realized.
For the positioning of the other breast, steps S804 and S806 may be repeated.
According to another embodiment of the present application, there is also provided a breast imaging method, wherein the method uses a scanning bed as described above or a breast imaging CT device as described above. As shown in fig. 9, the imaging method M900 may include the following.
In step S902, the subject is positioned on the scanning bed, and the crotch position or the position near the crotch of the subject is supported on the support portion. So that the thigh portion of the subject can be positioned in the concave portion and the upper body can be positioned in the accommodation portion.
In step S904, one side breast is positioned. One side breast of the subject is inserted into the opening. So that the same side arm of the tested person inserted into the breast can be carried back to the back, and the other side arm can be lifted upwards, put aside, or the other side arm can be carried back to the back. The body of the testee is finely adjusted, so that the accurate positioning of the breast can be realized.
In step S906, the source and detector are activated. Wherein the source and detector may be rotated with a rotating platform. The rotation is rotated around the breast being examined. This completes the detection of one breast.
In step S908, the other breast is located. The other breast of the subject is inserted into the opening. So that the same side arm of the tested person inserted into the breast can be carried back to the back, and the side arm of the tested person can be lifted upwards, put aside, or the side arm of the tested person can be carried back to the back. The body of the testee is finely adjusted, so that the accurate positioning of the breast can be realized.
In step S910, the source and detector are activated. Wherein the source and detector may be rotated with a rotating platform. The rotation is rotated around the breast being examined. This completes the detection of the other breast.
In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the present application. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
It will be appreciated by persons skilled in the art that the above embodiments are provided for clarity of illustration only and are not intended to limit the scope of the invention. Other variations or modifications will be apparent to persons skilled in the art from the foregoing disclosure, and such variations or modifications are intended to be within the scope of the present invention.
Claims (22)
1. A scanning bed for use in a breast imaging CT apparatus for supporting a subject, comprising:
a receiving portion for receiving an upper body of a subject, and having a shape configured to be arc-concave from an edge to a center;
an opening portion provided at a lowest position of the accommodating portion and into which a breast of a subject is inserted;
a support portion provided at a rear side of the receiving portion for supporting a crotch position or a crotch vicinity position of the subject;
a first inclined portion extending downward toward a front side with the support portion as a starting point, and a surface of the first inclined portion constituting a part of a surface of the accommodating portion; and
and a second inclined portion extending downward toward the rear side with the support portion as a starting point, a surface of the second inclined portion contacting at least a thigh portion of the subject.
2. The scanner bed as set forth in claim 1, wherein a distance between a front side edge of the receiving portion and the supporting portion is set to be greater than a length of an upper body of the subject.
3. A scanning bed according to claim 2 wherein the distance between the left and right edges of the receptacle is set to be greater than the width of the shoulders of the subject.
4. The scanning bed of claim 1 wherein the receptacle is disk-shaped.
5. The scanner bed as set forth in claim 1, wherein the outer periphery of the opening portion is provided with a horizontal surface, the receiving portion is arcuately recessed from an edge thereof to the horizontal surface, and the first inclined portion extends to the horizontal surface.
6. The scanning bed of claim 1 wherein a distance between a front edge of the receptacle and a center of the opening is greater than a length of a portion above a chest of the subject.
7. The scanning bed of claim 1, wherein a distance between a center of the opening and an apex of the support portion is 300mm to 500mm.
8. The scanning bed of claim 1, wherein a distance between an apex of the support portion and a lower edge of the second sloped portion is 350mm to 500mm.
9. The scanning bed of claim 1, wherein the second inclined portion is inclined at an angle of 25 ° to 35 ° relative to the horizontal.
10. The scanning bed of claim 9, wherein the second sloped portion has a greater slope angle than the first sloped portion.
11. The scanning bed of claim 1, wherein a height difference between a lowest point of the first sloped portion and an apex of the supporting portion is 20mm to 40mm.
12. The scanning bed of claim 1, wherein a height difference between a lowest point of the second sloped portion and an apex of the supporting portion is 150mm to 250mm.
13. The scanner bed of claim 1, further comprising a recess having a concave shape relative to a lower surface of the scanner bed for receiving at least a thigh portion of a subject.
14. The scanner bed of claim 13, wherein the support and the second sloped portion are disposed within the recessed portion, and wherein an apex of the support is disposed below an upper surface of the scanner bed.
15. The scanning bed of claim 1, wherein a breast positioning portion is provided circumferentially of the opening, wherein the breast positioning portion is made of a soft material.
16. A scanning bed as claimed in claim 15 wherein the breast positioning portion is positioned below the edge of the opening.
17. The scanning bed of claim 1, wherein the scanning bed is made of high strength plastic, glass fiber reinforced plastic or carbon fiber.
18. The scanner bed as set forth in claim 1, wherein the scanner bed is provided with a through-hole in an upper surface thereof, and wherein the scanner bed is fixed with respect to the frame structure by an embedded part in the through-hole and a bolt after the scanner bed is placed on the frame structure.
19. The scanner bed as set forth in claim 1, further comprising a knee rest continued from a lower edge of the second inclined portion for kneeling a knee of the subject on the knee rest.
20. A method of positioning using a scanning bed according to any one of claims 1 to 19, comprising:
so that the subject is positioned on the scanning bed, wherein the crotch position or the position near the crotch of the subject is supported on the support portion;
inserting a breast of a subject into the opening; and
so that the arms of the person to be tested, which are inserted into the breast, are carried back to the back.
21. A breast imaging CT apparatus comprising:
the scanning bed of any of claims 1 to 19;
a source for emitting X-rays; and
a detector for receiving X-rays of the source,
wherein the source and detector are controlled to be rotatable about the breast under test for breast imaging.
22. A breast imaging method using the breast imaging CT apparatus of claim 21, comprising:
so that the subject is positioned on the scanning bed and the crotch position or the position near the crotch of the subject is supported on the support;
positioning one side breast of a subject into the opening, and the same side arm of the subject inserted into the breast is put back to the back;
controlling the source and detector to rotate around the one breast to detect the one breast;
positioning the other side breast of the subject into the opening, and the same side arm of the subject inserted into the breast is put back to the back; and
the source and detector are controlled to rotate about the other breast to detect the other breast.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310806362.9A CN116509433A (en) | 2023-07-04 | 2023-07-04 | Scanning bed, positioning method, breast imaging CT device and imaging method |
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| CN202310806362.9A CN116509433A (en) | 2023-07-04 | 2023-07-04 | Scanning bed, positioning method, breast imaging CT device and imaging method |
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