CN102429680B - For method and the computed tomographic scanner of computed tomographic scanner - Google Patents
For method and the computed tomographic scanner of computed tomographic scanner Download PDFInfo
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- CN102429680B CN102429680B CN201110273308.XA CN201110273308A CN102429680B CN 102429680 B CN102429680 B CN 102429680B CN 201110273308 A CN201110273308 A CN 201110273308A CN 102429680 B CN102429680 B CN 102429680B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/032—Transmission computed tomography [CT]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/40—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4064—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis specially adapted for producing a particular type of beam
- A61B6/4078—Fan-beams
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
- A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
- A61B6/4447—Tiltable gantries
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/50—Clinical applications
- A61B6/505—Clinical applications involving diagnosis of bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/54—Control of apparatus or devices for radiation diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/027—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
Abstract
The present invention relates to a kind of method of the X-ray projection for taking patient (P) specified tissue and a kind of computed tomographic scanner, wherein, have at least one x-ray source (6) and at least one X-ray detector (7) and etc. the x-ray system at center (IZ) and patient (P) direction that to extend past etc. the system axis (S) at center (IZ) when taking X-ray projection along computed tomographic scanner (1) carry out relative movement adjustment, wherein, the tissue of specifying has and carries out along it the centrage (M) that scans or organize axis (G), but centrage (M) or organize axis (G) to be not parallel to system axis (S), wherein, modulated to carry out combination toward each other mobile for x-ray system and patient (P), make centrage (M) or organize axis (G) move through x-ray system etc. center (IZ).
Description
Technical field
The present invention relates to a kind of method of the X-ray projection for taking patient's specified tissue in the helical scanning using computed tomographic scanner to carry out.The invention still further relates to and a kind ofly implement the calculation procedure of the method, the data medium with this calculation procedure and a kind of computed tomographic scanner with computing unit, in this computing unit, described calculation procedure is housed to perform.
Background technology
In Computed tomography, with order scanning or spiral scan pattern, patient is scanned.In the helical scanning such as undertaken by third-generation computer tomoscanner, generally scan when monitor station height and the flip angle of frame are constant relative to patient.Before helical scanning, the patient support plate with patient is first general, and to extend past the isocentric system axis of x-ray system relative to computed tomographic scanner directed, and system axis is extended past, and patient is to be scanned, concerned tissue.When helical scanning, patient support plate with patient moves through along the direction of system axis the measuring range defined by x-ray system, concerned organize therefore be positioned at x-ray system etc. center, the constant faultage image of concerned liver mass can be generated thus.
But also there is such patient tissue, especially the tissue extended on certain length, such as Thigh bone or spinal column, they cannot scan in the above described manner completely, because the trend of Thigh bone or spinal column is not parallel with the surface of patient support plate or the system axis of frame when patient lies low on patient support plate.Therefore, when patient support plate adjustment movement, the section of Thigh bone or spinal column not x-ray system etc. in the heart, the faultage image that therefore Thigh bone or spinal column produce has mutually different picture quality depending on Thigh bone or the relatively isocentric position of spinal column.
Summary of the invention
Technical problem to be solved by this invention is, a kind of method, a kind of calculation procedure, a kind of data medium and a kind of computed tomographic scanner starting described type are provided, thus the picture quality organizing faultage image generated during helical scanning can be improved, the picture quality of the faultage image of the tissue that the system axis especially improved centrage or organize axis to be not parallel to computed tomographic scanner when patient lies low on patient support plate extends.
Solve by the method for this technical problem of the present invention by a kind of X-ray projection for taking patient's specified tissue in the helical scanning using computed tomographic scanner to carry out, wherein, there is at least one x-ray source and at least one X-ray detector and isocentric x-ray system and patient modulated direction extending past isocentric system axis along computed tomographic scanner when taking X-ray projection move relative to each other, wherein, the tissue of specifying has and carries out along it the centrage that scans or organize axis, but centrage or organize axis to be not parallel to when patient lies low on examining table isocentric system axis that computed tomographic scanner extends past x-ray system, wherein, x-ray system and patient is modulated carries out that combination is mobile or synthesis is mobile toward each other, make centrage or organize axis move through x-ray system etc. center.
Therefore the present inventor's suggestion, according to need in faultage image or stereo data group imaging, specify the centrage of the tissue paid close attention to or organize the trend of axis mutually to regulate x-ray system and patient.Because centrage or organize axis be not parallel to when patient lies low on examining table computed tomographic scanner system axis or be such as not parallel to examining table patient support plate surface, so it is not linearly carry out along system axis direction merely that the relative movement formula of x-ray system and patient regulates, but also there is at least one component motion transverse to system axis.Can realize by this way, need in faultage image imaging, specify pay close attention to be organized in the projection of shooting X-ray time be always positioned at least in part x-ray system etc. center or x-ray system photographic plane etc. center, can generate or rebuild the faultage image of specifying the liver mass paid close attention to constant thus.
In addition, scanning, especially helical scanning is interpreted as the X-ray projection from different projecting directions shooting patient tissue, especially the X-ray projection of two dimension, wherein, x-ray system and patient relative movement constantly.
Organize and generally can have many and organize axis, the such as main shaft of three mutually orthogonal orientations.Patient is helical scanning directed or arrangement at this so relative x-ray system, and helical scanning can be carried out along the axis of organizing expected.
By a kind of flexible program of the present invention, patient lies low on examining table, wherein examining table or examining table at least one parts take X-ray projection time in height modulated and/or mobile transverse to system axis, make centrage or organize axis move through x-ray system etc. center.In third-generation computer tomoscanner, frame generally not translation, but position is fixing.And the patient support plate of such as examinating couch or patient support platform undertaking patient regulates point-blank in the direction that originally relative frame carries out altitude mixture control tailing edge system axis.In this flexible program of the present invention, at least one parts of examining table or examining table additionally in height and/or transverse to system axis regulate like this when taking X-ray projection, make centrage or organize axis move through x-ray system etc. center.But also there is the third-generation computer tomoscanner with " sliding frame ", wherein, frame regulates when taking X-ray projection point-blank relative to the examining table in height regulated.Therefore, in this form of implementation of the present invention, the patient support plate of examining table does not carry out the straight line adjustment movement along system axis direction, but at least one parts of examining table or examining table only in height and/or transverse to system axis regulate.Mixed form between two flexible programs is also contained in the present invention at this.
By another kind of flexible program of the present invention, x-ray system take X-ray projection time in height and/or transverse to patient carry out moving adjustment, make centrage or organize axis move through x-ray system etc. center.In this form of implementation of the present invention, such as carry out the rectilinear motion along system axis by adjustment patient support plate, and by x-ray system or to have the frame of x-ray system in height corresponding and/or carry out moving adjustment transverse to patient, so that with centrage or organize the trend of axis to mate.Also additionally in height and/or laterally mobile such as patient support plate can be regulated at this.In addition, adjustment movement can only be undertaken by the sample of x-ray system according to " sliding frame ", also to carry out the adjustment of height and/or transverse direction except the rectilinear motion of x-ray system or frame.In this case, the mixed form between flexible program is also included within the present invention.
By a kind of form of implementation of the present invention, x-ray system take X-ray projection time additionally around at least one perpendicular to system axis extend axis tilt or tumble.This tipping line generally relative to system axis horizontal-extending (extending) in horizontal plane.Can be produced by x-ray system or the inclination or tumble of frame with x-ray system specifies the tissue paid close attention to perpendicular to centrage or faultage image or the cross sectional image of organizing axis orientation.
By a kind of design of the present invention, use computed tomographic scanner carry out helical scanning before take at least one spacer (Topogramm) of patient, in this spacer labelling specified tissue centrage or organize the trend of axis.When taking at least one spacer, x-ray system and patient be relative movement point-blank only.Mostly take spacer from front to back or from the side.But also can take a width spacer respectively along both direction.If such as need the spinal column of scan patients, then patient is positioned on such as patient support plate, and when x-ray system is from its vertical home position 90-degree rotation, namely take the spacer of patient's spinal column from the side, wherein, only along system axis direction, relative x-ray system regulates patient support plate point-blank.In this case, can in this spacer, the centrage of spinal column or the spinal column longitudinal axis of depicting the two S shape of spinal column be drawn as or be labeled as and organize axis for spinal column.The centrage of spinal column is not parallel to can be charged to the system axis in spacer equally and organize the general also relative system axis of axis to tilt.
By another kind of design of the present invention, according to labelling at least one spacer, the centrage of specified tissue or the combination moving type of organizing the trend of axis to carry out x-ray system and patient regulate.At this, preferably automatically by centrage or organize the trend of axis markers to calculate centrage or organize axis to move towards the deviation of relative system axis, and convert thereof into such as the control data of the altitude mixture control of patient support plate and/or x-ray system.
A kind of flexible program regulation of the present invention, relative centre line or organize axis additionally to mark some positions or location point at least one spacer marking centrage or organize axis to move towards described, at these positions or location point, x-ray system should tilt relative to patient or tumble, so that can as far as possible perpendicular to centrage or take the X-ray projection of specifying the tissue paid close attention to organizing axis, and therefore can produce in a straightforward manner or rebuild perpendicular to centrage or organize axis orientation organize faultage image.
Preferably also for each position marked specifies or automatically specifies or calculate inclination angle or the angle of overturn, adjust this inclination angle, make it possible to as far as possible perpendicular to centrage or the X-ray projection of taking the tissue of specifying concern with organizing axis.
Technical problem to be solved by this invention also by a kind of calculation procedure for implementing one of preceding method, a kind of there is this calculation procedure data medium and a kind of computed tomographic scanner comprising computing unit solve, this computing unit has aforesaid calculation procedure.
Accompanying drawing explanation
In schematic accompanying drawing, one embodiment of the present of invention are described.In accompanying drawing:
Fig. 1 be computed tomographic scanner and
Fig. 2 is the spacer of patient in Fig. 1.
Detailed description of the invention
In the accompanying drawings, the element that identical or function is identical is equipped with identical Reference numeral completely.Shown in these accompanying drawings just schematically, not forcibly in proportion.Under regard to computed tomographic scanner 1 not limiting in general situation and be only described to as understanding degree required for the present invention.
Computed tomographic scanner 1 shown in Fig. 1 comprises frame 2, and this frame has standing part 3 and around the rotatable part 4 of system axis S.Rotatable part 4 has the x-ray system comprising x-ray source 6 and X-ray detector 7 in an embodiment of the present invention, and this x-ray source 6 is arranged in rotatable part 4 oppositely with X-ray detector 7.In addition, frame 2 or rotatable part 4 also to have etc. center IZ, these centers IZ to be positioned on system axis S and represent x-ray system rotate around point or mid point.When computed tomographic scanner 1 runs, X-ray beam 8 penetrates towards the direction of X-ray detector 7 from x-ray source 6, penetrates Measuring Object and is detected by X-ray detector 7 with the form of measurement data or measuring-signal.
Frame 2 also comprises and it is furnished with the standing part 3 of frame 2 and the pedestal 5 of rotatable portion 4.The standing part 3 of frame 2 and rotatable portion 4 can tilt or upset around tipping line K along the direction of four-headed arrow a by opposite base 5 jointly.The tipping line K of frame 2 arranges perpendicular to system axis S and essentially horizontally extends.For making the standing part 3 of frame 2 and rotatable portion 4 can tilt around tipping line K or to tumble by opposite base 5, be provided with a supporting schematically shown in FIG and driver element 20 at least side of pedestal 5.
Computed tomographic scanner 1 also has the examining table 9 of the patient P for settling examine.Examining table 9 comprises a pedestal 10, which is provided with a blocks design for really accepting the patient support plate 11 of patient P.In this embodiment in accordance with the invention, patient support plate 11 is arranged on pedestal 10 like this, and this patient support plate 11 can be regulated along the direction of system axis S by pedestal 10 relatively.Therefore, patient support plate 11 can project with the patient P two-dimensional x-ray jointly imported for taking patient P in such as helical scanning, in the door opening of frame 2 or passage 12.In addition, in this embodiment in accordance with the invention, pedestal 10 in height scalable.
By schematically show, two-dimensional x-ray projection that tomography computer 13 computing of computed tomographic scanner 1 is taken by x-ray system or rebuild faultage image, 3-D view or three-dimensional data group according to the measurement data of two-dimensional x-ray projection or measuring-signal.
Computed tomographic scanner 1 also has a computing unit 14 be connected with tomography computer 13, can be performed and perform for operating the calculation procedure with computer for controlling tomoscanner 1 by this computing unit 14.Computing unit 14 need not be designed to independent computing unit 14 at this, but can also be integrated in computed tomographic scanner 1 as described tomography computer 13 in addition.
In this embodiment in accordance with the invention, a calculation procedure 15 is loaded in computing unit 14, this calculation procedure 15 implement a kind of by of the present invention for improving the method organizing faultage image quality, the axis of this tissue or organize axis to be not parallel to the system axis of patient support plate surface or x-ray system when patient lies low on patient support plate.Calculation procedure 15 represents a kind of special operational mode for computed tomographic scanner 1 at this and can from moveable data medium, such as CD16 or memory stick or load computing unit 14 from server 17 via network 18, the internal network of this network 18 can be public network also can be clinic or hospital.
In this embodiment of the invention, need the spinal column checking patient P, that is, should generate faultage image continuous mutually before and after the spinal column of patient P along the direction of system axis S, these faultage images should have quality high and constant as far as possible.
For this reason, in the method, the spacer of the spined body region of a width patient P tool is obtained first in a way known.After patient P lies low on patient support plate 11, this patient support plate 11 is in height adjusted to by pedestal 10, makes the system axis S of x-ray system extend past the spinal column of patient P at least approx.The surface of patient support plate 11 and the system axis S of x-ray system extend in parallel to each other at this.As shown in Figure 1, x-ray system is made from its vertical home position 90-degree rotation to the position of side.In this embodiment in accordance with the invention, in the described lateral location of x-ray system, take spacer, wherein, the direction linearly along system axis regulates with the patient support plate 11 of patient P.
Schematically show the spacer 21 of shooting in fig. 2, as it illustrates on the display device 22 of computing unit 14.At this, the current trend drawing system axis S in the spacer 21 that spinal column W is shown visibly.In addition, in spacer 21 record or the centrage M of labelling spinal column W and spinal column W organize longitudinal axis G, wherein, the longitudinal axis G that organizes of spinal column W have recorded two S shapes of spinal column W.The axis M of spinal column W and organize the labelling of longitudinal axis G or record can manually by the entering apparatus of attaching troops to a unit in computing unit 14, such as computer mouse or automatically such as realize by algorithm for pattern recognition.
As clearly visible from Figure 2, the centrage M of spinal column W is not parallel to system axis S and extends, and organize longitudinal axis G also relative system axis S tilt.If as only regulated patient support plate 11 along the direction of the system axis S of IZ positions, center such as showing point-blank when carrying out helical scanning at large so far, then centrage M with organize longitudinal axis G scarcely on the IZ of Hui Deng center.
For this reason, according to labelling in spacer 21, the trend of centrage M and the known trend of system axis S, convert by computing unit 14 control signal regulating patient support plate 11 and pedestal 10 along the distance between system axis S computer center line M and system axis S to.In this embodiment of the invention, system axis S extends along the direction of the z-axis line of the rectangular coordinate system drawn in Fig. 1 and centrage M relative system axis S only has deviation along x-axis line direction.Therefore, the control signal calculated is the signal relevant with the altitude mixture control of pedestal 10.
In an identical manner according in spacer 21 labelling, the known trend of organizing the trend of longitudinal axis G and system axis S, convert by computing unit 14 control signal regulating patient support plate 11 or pedestal 10 along the distance between system axis S computation organization longitudinal axis G and system axis S to.In this embodiment of the invention, longitudinal axis G relative system axis S is organized also only to have deviation along x-axis line direction in said case.Therefore, the control signal for organizing longitudinal axis G to calculate equally also is the signal relevant with the altitude mixture control of pedestal 10.
In addition, for the centrage M in spacer 21, centrally can specify some positions or location point like this by line M, should tilt especially like this around tipping line K in these location point place frames 2 or overturn, make to take X-ray projection by x-ray system perpendicular to centrage M when helical scanning.User can one by one manually given inclination angle or by automatically determining corresponding inclination angle labelling or mark these important position or location points in spacer 21 based on centrage M and system axis S.Generated the corresponding skewed control signal tilted for frame 2 by computing unit 14 by these given information.But also can represent or select whole piece centrage M in this case, thus making frame 2 mate continuously or tilt according to the trend of centrage M and system axis S practically when helical scanning.For this reason, move towards to produce in order to tumble continuously around tipping line K or the corresponding skewed control signal of banking motion by line M centered by computing unit 14 whole.
In an identical manner, inclination angle can being determined according to organizing longitudinal axis G and system axis S like this for organizing longitudinal axis G, making perpendicular to organizing longitudinal axis G to take X-ray projection.Corresponding skewed control signal can be generated by computing unit 14 by spacer.
For implementing helical scanning, user can select centrally line M to scan or along organizing longitudinal axis G scan, wherein, all has the control signal about pedestal 10 altitude mixture control and the control signal about frame 2 or x-ray system inclination for these two kinds of flexible programs.
If user selects centrally line M to carry out helical scanning, then in the case of the embodiment of the invention, x-ray system around etc. center IZ or system axis S rotate time, the direction along system axis S or z-axis regulates patient support plate 11 continuously.This adjustment movement superposes with the altitude mixture control of pedestal 10 according to the control signal calculated before, is realized by this altitude mixture control, and when regulating patient support plate 11 along the direction of system axis S or z-axis line, the centrage M of spinal column such as to move through at the center IZ.Simultaneously according to the skewed control signal calculated before, frame 2 or x-ray system tilt accordingly around tipping line K, and due to the wave-like of centrage M, this corresponding inclination is that a kind of continuous tilt along four-headed arrow a direction moves.
As alternative, user can select along organizing longitudinal axis G to carry out helical scanning.In this case, x-ray system around etc. center IZ or system axis S rotate time also regulate patient support plate 11 continuously along the direction of system axis S or z-axis line.This adjustment movement superposes with the altitude mixture control of pedestal 10 according to the control signal calculated before, is realized again by this altitude mixture control, the center IZ such as organize that longitudinal axis G moves through of spinal column when patient support plate 11 regulates along system axis S or z-axis line direction.Edge is organized to the helical scanning of longitudinal axis G, frame only tilts once by the control signal calculated and remains on this position in scan period.
In helical scanning in above-mentioned two situations, can by the high-quality faultage image of tomography computer 13 reconstruction patients P spinal column because when taking X-ray projection axis M or organize longitudinal axis G move through x-ray system etc. center IZ.
For controlling described method, such as, on computing unit 14, preferably provide the user interface of a pattern.By the button of pattern such as can also make computing unit 14 reference system axis S according to centrage M or organize longitudinal axis G calculate in order to regulate in the case pedestal 10 height control signal, and according to centrage M or organize longitudinal axis G calculate skewed control signal.In addition, can the adjustment of other optional sweep parameter be carried out by known mode itself and finally start helical scanning.
Different from the above embodiment of the present invention, for helical scanning can only use the centrage of spinal column or only use describe spinal column organize longitudinal axis, be therefore also only the flexible program selected respectively and produce corresponding control signal.
Except the spacer of side, at least can also produce preferably along another width spacer in direction from front to back, so as such as can to carry out due to spinal column centrage or organize longitudinal axis to move towards accordingly and may need, move along the y direction lateral adjustments respect to one another of x-ray system and patient.If that is centrage or organize longitudinal axis to have corresponding y component, then except the adjustment of height can also carry out the lateral adjustment along y-axis line direction.If cause centrage or organize longitudinal axis to move through isocentric adjustment movement and comprise x component and y component, be then commonly referred to as the lateral adjustments of relative system axis S.
The application of described method is not confined in the helical scanning of spinal column.And also can scan other tissue according to the method, such as Thigh bone.The inclination of frame or x-ray system always need not be carried out at this.This frame also can keep its vertical setting shown in FIG when helical scanning.
Also there is this probability, that is, frame or x-ray system also can tilt, as long as centrage has corresponding trend by axis that is vertically extending around another, that erect perpendicular to system axis and tipping line.
In this embodiment of the invention, the adjustment movement along each axis direction of rectangular coordinate system is implemented by examinating couch.But adjustment movement also can partly be realized by frame completely or only, this frame for this reason must corresponding adjustment.
Claims (8)
1. the method projected for the X-ray of taking patient (P) specified tissue in the helical scanning using computed tomographic scanner (1) to carry out, wherein, have at least one x-ray source (6) and at least one X-ray detector (7) and etc. the x-ray system at center (IZ) and described patient (P) the modulated direction extending past the system axis (S) at the center (IZ) such as described along described computed tomographic scanner (1) when taking X-ray projection move relative to each other, wherein, described tissue of specifying has and carries out along it the centrage (M) that scans or organize axis (G), but described centrage (M) or described organize axis (G) be not parallel to described computed tomographic scanner (1) extend past described x-ray system etc. the system axis (S) at center (IZ), wherein, modulated to carry out combination toward each other mobile for described x-ray system and described patient (P), make described centrage (M) or described organize axis (G) move through described x-ray system etc. center (IZ).
2. the method for claim 1, wherein, described patient (P) lies low on examining table (9), wherein, at least one parts (10 of described examining table (9) or described examining table (9), 11) in height modulated and/or mobile transverse to described system axis (S) when taking the projection of described X-ray, make described centrage (M) or described organize axis (G) move through described x-ray system etc. center (IZ).
3. the method for claim 1, wherein, described x-ray system is in height modulated and/or mobile transverse to described patient (P) when taking the projection of described X-ray, make described centrage (M) or described organize axis (G) move through described x-ray system etc. center (IZ).
4. the method as described in one of claims 1 to 3, wherein, axis (K) inclination that described x-ray system additionally extends around at least one perpendicular to described system axis (S) when taking the projection of described X-ray.
5. the method for claim 1, wherein, use described computed tomographic scanner (1) carry out helical scanning before take at least one spacer (21) of described patient (P), in described spacer (21) specified tissue described in labelling centrage (M) or organize the trend of axis (G).
6. method as claimed in claim 5, wherein, according to labelling in described at least one spacer (21), the centrage (M) of described specified tissue or organize the trend of axis (G) to carry out described combination moving type adjustment.
7. the method as described in claim 5 or 6, wherein, described at least one to mark in described centrage (M) or the described spacer (21) organizing axis (G) to move towards relatively described centrage (M) or describedly organize axis (G) the additionally one or more position of labelling, in this one or more position, described x-ray system should tilt relative to described patient (P).
8. method as claimed in claim 7, wherein, is respectively each regulation inclination angle, position marked.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010041195.7 | 2010-09-22 | ||
| DE102010041195.7A DE102010041195B4 (en) | 2010-09-22 | 2010-09-22 | Method of recording x-ray projections |
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| CN102429680A CN102429680A (en) | 2012-05-02 |
| CN102429680B true CN102429680B (en) | 2015-09-16 |
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| CN201110273308.XA Expired - Fee Related CN102429680B (en) | 2010-09-22 | 2011-09-15 | For method and the computed tomographic scanner of computed tomographic scanner |
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| CN (1) | CN102429680B (en) |
| DE (1) | DE102010041195B4 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107103192A (en) * | 2017-04-21 | 2017-08-29 | 上海联影医疗科技有限公司 | Magic magiscan and its data managing method |
| DE102018211669B4 (en) * | 2018-07-12 | 2020-01-23 | Siemens Healthcare Gmbh | Omnidirectional chassis for a gantry of a computed tomography device |
| EP3797697B1 (en) * | 2019-09-27 | 2024-03-27 | Siemens Healthineers AG | Tomosynthesis method with combined layer image data sets |
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| US4296329A (en) * | 1979-10-22 | 1981-10-20 | General Electric Company | Alignment device for computerized tomography phantoms |
| US4629989A (en) * | 1983-11-10 | 1986-12-16 | General Electric Company | Patient alignment system for NMR studies |
| US5287546A (en) * | 1992-09-14 | 1994-02-15 | Lunar Corporation | Patient positioning apparatus for bone scanning |
| CN101204609A (en) * | 2006-12-18 | 2008-06-25 | 西门子公司 | Device for irradiation therapy with image monitoring |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010041195B4 (en) | 2016-06-23 |
| DE102010041195A1 (en) | 2012-03-22 |
| CN102429680A (en) | 2012-05-02 |
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