CN1670517A - Magnetic resonance imaging apparatus and method of controlling magnetic resonance imaging apparatus - Google Patents
Magnetic resonance imaging apparatus and method of controlling magnetic resonance imaging apparatus Download PDFInfo
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- CN1670517A CN1670517A CN 200510053074 CN200510053074A CN1670517A CN 1670517 A CN1670517 A CN 1670517A CN 200510053074 CN200510053074 CN 200510053074 CN 200510053074 A CN200510053074 A CN 200510053074A CN 1670517 A CN1670517 A CN 1670517A
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Abstract
The invention provided a magnetic resonance imaging apparatus and a control method thereof capable of automatically setting the position and the angle of ROI with substantially same pattern as any past images. A gradient magnetic field and a high frequency are applied to a subject to be examined arranged in a static magnetic field, and a magnetic resonance signal generated in the subject to be examined is received, and a pickup image is formed by using the magnetic resonance signal in the magnetic resonance imaging apparatus, and it is equipped with a storing part 201 for storing positional information which defines what positional relationship sets ROI for deciding the pickup section position to the standard image picked up in past, and a ROI automatic setting part 207 for setting ROI for deciding the pickup section position to the pickup image based on the positional information.
Description
Technical field
The present invention relates to have magnetic resonance imaging (imaging) device and the control method thereof that can easily determine the user interface of camera positions.
Background technology
MR imaging apparatus is to utilize when being placed in the same static magnetic field in the atomic nucleus group that will have intrinsic magnetic momemt (moment), resonance ground absorbs the phenomenon with the energy of the high frequency magnetic field of characteristic frequency rotation, the chemistry of material and the microscopic information of physics carry out imageizations, perhaps observe the device of chemical deviation frequency spectrum (shift spectrum).
Generally, in the photography of using MR imaging apparatus, for example need to be provided with the various photographic parameters such as size (photography sequential) of TR (Repetition Time), TE (Echo Time), slice thickness, FOV (Field ofView).Each photographic parameter and other parameter correlation, and the contrast of image etc. exerted an influence, therefore in order to obtain, just need to a certain degree special knowledge, technology and experience to diagnosing suitable image.In addition, generally be that the operator holds a concurrent post other work mostly.Therefore, owing to have the inoperation MR imaging apparatus during become and be unfamiliar with, so the low situation of elongated work efficiency of running time is arranged.
As the technology that solves such problem, simple (simple) photography and the such technology of PAS (Programmable Anatomical System) are arranged.Simple photography is the method for imaging towards the beginner of MR (Magnetic Resonance) image of can photographing fairly simplely.In addition, PAS is the function that can automatically pre-set the photographic parameter of each target site before scanning in advance.By these technology,, the few technician of operating experience suitable photographic parameter also can be set, the suitable diagnostic image of can photographing even waiting.
But, in existing MR imaging apparatus, for the position of ROI (Region of Interest) and the following problem of existence that is provided with of angle.That is, in the prior art,, then can't be provided with automatically for position and the angle of ROI though can be provided with automatically most of photographic parameter by technology such as PAS.Therefore, on one side operator self to give one's full attention to, Yi Bian be provided with by manual operation subjective judgement ground.At this moment, the user interface that utilize the position relation according to the profile of detected body and internal organs to be provided with, but according to the difference of operator's ability, ROI might be arranged on wrong position or the angle and photograph.
In addition, the MR imaging apparatus all positions of human body of can photographing therefore in order to obtain its camera work, just need suitable education time.Therefore, the operator will pay great time, cost, labour in order certainly to address this problem by study special knowledge and technology etc., and will be in addition, from the medical concept point that must diagnose as early as possible and treat, also not necessarily desirable.
Summary of the invention
The present invention is exactly In view of the foregoing, its purpose be to provide a kind of can with the same in fact state of the arbitrary image in past under the position of ROI and the MR imaging apparatus and the control method thereof of angle automatically are set.
The present invention and possesses with lower unit in order to achieve the above object.
One aspect of the present invention is a kind of MR imaging apparatus, be to apply leaning magnetic field and high frequency by the detected body in being configured in static magnetic field, thereby be received in the magnetic resonance signal that produces in this detected body, and utilize this magnetic resonance signal to generate the MR imaging apparatus of photographs, it is characterized in that comprising: what kind of position storage and benchmark image and be arranged on the relevant information of relative position relation that usefulness on this benchmark image decides the 1st region-of-interest of photography cross section place promptly define according to and concern storage unit to the positional information of said reference image setting the 1st region-of-interest; According to above-mentioned positional information, the region-of-interest that is provided with on positioning image with the 2nd region-of-interest that decides the photography cross section place is provided with the unit.
Another aspect of the present invention is a kind of MR imaging apparatus, be to apply leaning magnetic field and high frequency by the detected body in being configured in static magnetic field, thereby be received in the magnetic resonance signal that produces in this detected body, and utilize this magnetic resonance signal to generate the MR imaging apparatus of photographs, it is characterized in that comprising: storage is provided with the storage unit with the benchmark image of the 1st region-of-interest that decides the photography cross section place; Generation definition is according to the positional information generation unit of what kind of position relation to the positional information of above-mentioned the 1st region-of-interest of said reference image setting; According to above-mentioned positional information, the region-of-interest that is provided with on positioning image with the 2nd region-of-interest that decides the photography cross section place is provided with the unit.
Another aspect of the present invention is a kind of MR imaging apparatus, be to apply leaning magnetic field and high frequency by the detected body in being configured in static magnetic field, thereby be received in the magnetic resonance signal that produces in this detected body, and utilize this magnetic resonance signal to generate the MR imaging apparatus of photographs, it is characterized in that comprising: at each positioning image in past, storage and the usefulness on each of the positioning image that is arranged on a plurality of past decide the relevant information of relative position of the 1st region-of-interest of photography cross section place, promptly define according to what kind of position to concern that the positioning image to above-mentioned past of correspondence is provided with the storage unit of the positional information of above-mentioned the 1st region-of-interest; Anatomic information according to the present positioning image relevant with above-mentioned detected body, select to be used for to be provided with at above-mentioned present positioning image the selected cell as the positional information of benchmark of the 2nd region-of-interest from above-mentioned a plurality of positional informations, wherein above-mentioned the 2nd region-of-interest is with deciding the photography cross section place; The above-mentioned positional information as benchmark that use is selected, the region-of-interest that above-mentioned the 2nd region-of-interest is set on above-mentioned present positioning image is provided with the unit.
Another aspect of the present invention is a kind of MR imaging apparatus, be to apply leaning magnetic field and high frequency by the detected body in being configured in static magnetic field, thereby be received in the magnetic resonance signal that produces in this detected body, and utilize this magnetic resonance signal to generate the MR imaging apparatus of photographs, it is characterized in that comprising: storage is provided with the storage unit with the positioning image in a plurality of past of the 1st region-of-interest that decides the photography cross section place respectively; Anatomic information according to the present positioning image relevant with above-mentioned detected body, select to be used for to be provided with at above-mentioned present positioning image the selected cell as the benchmark image of benchmark of the 2nd region-of-interest from the positioning image in above-mentioned a plurality of past, wherein above-mentioned the 2nd region-of-interest is with deciding the photography cross section place; Generation definition is according to the positional information generation unit of what kind of position relation to the positional information of above-mentioned the 1st region-of-interest of said reference image setting; According to above-mentioned positional information, on above-mentioned present positioning image, be provided with and use the region-of-interest of the 2nd region-of-interest that decides the photography cross section place that the unit is set.
Another aspect of the present invention is a kind of control method of MR imaging apparatus, be to apply leaning magnetic field and high frequency by the detected body in being configured in static magnetic field, thereby be received in the magnetic resonance signal that produces in this detected body, and utilize this magnetic resonance signal to generate the control method of the MR imaging apparatus of photographs, it is characterized in that: according to positional information, on positioning image, be provided with the 2nd region-of-interest that decides the photography cross section place, wherein above-mentioned positional information is with benchmark image and is arranged on the relevant information of relative position relation that usefulness on this benchmark image decides the 1st region-of-interest of photography cross section place, what kind of promptly define according to the positional information of position relation to said reference image setting the 1st region-of-interest, and use is provided with the above-mentioned positioning image of above-mentioned the 2nd region-of-interest, the layer image relevant with this detected body of photographing.
Another aspect of the present invention is a kind of control method of MR imaging apparatus, be to apply leaning magnetic field and high frequency by the detected body in being configured in static magnetic field, thereby be received in the magnetic resonance signal that produces in this detected body, and utilize this magnetic resonance signal to generate the control method of the MR imaging apparatus of photographs, it is characterized in that: generation definition is provided with the positional information of using the 1st region-of-interest that decides the photography cross section place according to what kind of position relation to benchmark image, according to above-mentioned positional information, on positioning image, be provided with the 2nd region-of-interest that decides the photography cross section place.
Another aspect of the present invention is a kind of control method of MR imaging apparatus, be to apply leaning magnetic field and high frequency by the detected body in being configured in static magnetic field, thereby be received in the magnetic resonance signal that produces in this detected body, and utilize this magnetic resonance signal to generate the control method of the MR imaging apparatus of photographs, it is characterized in that: at each positioning image stored position information in storage unit in past, wherein above-mentioned positional information be with each of the positioning image that is arranged on a plurality of past on usefulness decide the relevant information of relative position of the 1st region-of-interest of photography cross section place, promptly define the positional information that according to what kind of position relation the positioning image in the above-mentioned past of correspondence is provided with above-mentioned the 1st region-of-interest, anatomic information according to the present positioning image relevant with above-mentioned detected body, from above-mentioned a plurality of positional informations, select to be used for the positional information as benchmark of using the 2nd region-of-interest that decides the photography cross section place being set at above-mentioned present positioning image, and use the above-mentioned positional information of selecting as benchmark, above-mentioned the 2nd region-of-interest is set on above-mentioned present positioning image.
Another aspect of the present invention is a kind of control method of MR imaging apparatus, be to apply leaning magnetic field and high frequency by the detected body in being configured in static magnetic field, thereby be received in the magnetic resonance signal that produces in this detected body, and utilize this magnetic resonance signal to generate the control method of the MR imaging apparatus of photographs, it is characterized in that: storage is provided with the positioning image with a plurality of past of the 1st region-of-interest that decides the photography cross section place respectively in storage unit, anatomic information according to the present positioning image relevant with above-mentioned detected body, from the positioning image in above-mentioned a plurality of past, select to be used for the benchmark image as benchmark of using the 2nd region-of-interest that decides the photography cross section place being set at above-mentioned present positioning image, generation definition is according to the positional information of what kind of position relation to above-mentioned the 1st region-of-interest of said reference image setting, according to above-mentioned positional information, on above-mentioned present positioning image, be provided with the 2nd region-of-interest that decides the photography cross section place.
Description of drawings
Fig. 1 is the structure of block diagram figure that has showed the MR imaging apparatus 10 of embodiment 1.
Fig. 2 is the process flow diagram of flow process of photography action of this MR imaging apparatus 10 of showing the automatic setting of the generation comprise reference position information and ROI.
Fig. 3 is the figure that is used for illustrating that the generation of reference position information is handled, and is the figure that shows benchmark image and ROI disposed thereon.
Fig. 4 is the figure that is used for illustrating the automatic set handling of ROI, is the figure that shows present positioning image and ROI disposed thereon.
Fig. 5 is the structure of block diagram figure that shows the MR imaging apparatus 50 of embodiment 2.
Fig. 6 is the process flow diagram that is illustrated in each flow process of handling of carrying out in the photography action of this MR imaging apparatus 50.
Embodiment
Below, embodiments of the invention 1 and 2 are described with reference to the accompanying drawings.In addition, in the following description, give identical symbol, and only carry out repeat specification in the case of necessary to inscape with much the same function and structure.
(embodiment 1)
Fig. 1 has showed the modular structure figure of the MR imaging apparatus 10 of embodiment 1.As shown in the drawing, this MR imaging apparatus 10 possesses static field magnet 11, cooling system control assembly 12, gradient magnetic field coil 13, high frequency transmission coil 14, high frequency receiving coil 15, transmit block 18, receiving-member 19, data processor 20, display unit 24.
The cooling body of cooling system control assembly 12 control static field magnet 11.
Gradient magnetic field coil 13 is arranged on the inboard of static field magnet 11, and shorter than the axle of static field magnet 11, will be converted to leaning magnetic field from the pulse current that gradient magnetic field coil device power supply 17 is supplied with.By the leaning magnetic field that this gradient magnetic field coil 13 is produced, determine signal generator position (position).
In addition, in the present embodiment, Z-direction is the direction identical with the direction of static magnetic field.In addition, in the present embodiment, gradient magnetic field coil 13 and static field magnet 11 are cylindrical shape.In addition, gradient magnetic field coil 13 is configured in a vacuum by the supporting mechanism of regulation.This is because from quiet viewpoint, makes the vibration of the gradient magnetic field coil 13 that produces owing to applying of pulse current not propagate into the outside as sound wave.
High frequency sends coil (RF sends coil) the 14th, is used for applying to the photography zone of detected body the coil of the high-frequency impulse that is used for producing magnetic resonance signal.It is whole body RF coils that this high frequency sends coil 14, for example under the situation of photography belly etc., also can be used as the receiving coil use.
High frequency receiving coil (RF receiving coil) 15 be arranged on detected body near, it is desirable to closely clamping this detected body under the state of contact, and receive the coil of magnetic resonance from detected body.This high frequency receiving coil 15 generally has special-purpose shape at each position.
In addition, in Fig. 1, example high frequency is sent cross coil (cross coil) mode that coil and the split of high frequency receiving coil ground forms, but also can adopt structure with the unicoil mode of a coil dual-purpose.
Gradient magnetic field coil device power supply 17 produces and is used for forming the pulse current of leaning magnetic field, and supplies to gradient magnetic field coil 13.In addition, gradient magnetic field coil device power supply 17 is according to the control of control assembly 202 described later, supplies to the direction of the pulse current of gradient magnetic field coil 13 by switching, controls the polarity of leaning magnetic field.
Receiving-member 19 has amplifier unit, intermediate frequency converting member, phase-shift detection parts, wave filter, A/D (analog to digital) converter (all not having diagram).Receiving-member 19 is at the magnetic resonance signal (high-frequency signal) that discharges when foment relaxes for base state in nuclear magnetization that receives from radio-frequency coil 14, enforcement processing and amplifying, the intermediate frequency conversion process of having utilized transmission frequency, phase-shift detection processing, Filtering Processing, A/D conversion process.
Memory unit 201 (for example corresponding with " storage unit ") is the MR image obtained by this MR imaging apparatus 10 of storage, as the storer of the positioning image (benchmark image) in past of the benchmark of the ROI location of the positioning image (present positioning image) of the photography of now implementing, the information (positional information of ROI) relevant with angle with the position that is arranged on the ROI on this benchmark image.
In addition, benchmark image can be the magnetic resonance image (MRI) of having been photographed in the past by this MR imaging apparatus 10, also can be the magnetic resonance image (MRI) of having been photographed by other devices that obtains via removable medium or network.
The digital signal that data collection unit 203 is collected by receiving-member 19 samplings.
Reconstruct parts 204 at the data of having been collected by data collection unit 203, carry out aftertreatment, promptly Fourier transform etc. reconstructs etc., obtains the frequency spectrum data or the view data of the nuclear spin of the hope in the detected body.
Relative position information generates parts 206 (for example corresponding with " positional information generation unit ") according to being stored in benchmark image in the memory unit 201 and the positional information of ROI, generates the relative position information of benchmark image and ROI position thereof etc.At this, " relative position informations of benchmark image and ROI position thereof etc. " (being designated hereinafter simply as " reference position information ") is profile and the internal organs position of expression at the detected surface of extracting out from benchmark image, internal organs, bone, and the positional information of this ROI according to what kind of position relation is set.Therefore, relative position information generates parts 206 and extracts processing, figure matching treatment etc. out by Filtering Processing, profile, extracts the anatomic information (for example profile and internal organs position etc.) of benchmark image out.In addition, relative position information generates parts 206 by the anatomic information according to the benchmark image of extracting out, calculates this ROI and is arranged on the position apart from what with what kind of angle with respect to the profile of the internal organs of regulation etc. and position, calculates reference position information.
ROI is provided with parts 207 (for example corresponding with " region-of-interest is provided with the unit ") automatically according to generated the reference position information that parts 206 generate by relative position information, present positioning image is provided with ROI, make for move the positioning image (present positioning image) that obtains by the photography of now carrying out, identical in fact with the relative position of benchmark image and its ROI position etc.
That is, ROI is provided with parts 207 automatically by present positioning image being implemented Filtering Processing, profile extraction processing, figure matching treatment etc., the anatomic information (for example profile and internal organs position etc.) of extracting present positioning image out.ROI is provided with the anatomic information of the present positioning image of parts 207 reference extraction on one side automatically, on present positioning image ROI be set on one side.
Input block 208 (for example corresponding with " input block ") has the input media (mouse, tracking ball, mode selector switch, keyboard etc.) of the various indications that are used for obtaining from the operator, order, information.
Display unit 24 (for example corresponding with " display unit ") is the output unit that shows from the frequency spectrum data of data processor 20 inputs or view data etc.On this display unit 24, show present positioning image and the benchmark image that is provided with ROI respectively simultaneously with form arranged side by side or that at least a portion is overlapping.
(photography action)
The photography action of the MR imaging apparatus 10 of the automatic set handling that comprises ROI then, is described.
Fig. 2 is the process flow diagram that is illustrated in each flow process of handling of carrying out in the photography action of this MR imaging apparatus 10.As shown in the drawing, at first the patient is placed on the Wo Tai, carry out RF receiving coil 15 setting, static field magnet 11 with relevant (the step S1) such as location of detected body configuration.
Then, the photographic parameter (step S2) of input regulation is at comprising the location scanning (boot scan: pilot scan) (step S3) that the regulation zone of diagnosing the position is used for obtaining positioning image.After collecting the magnetic resonance signal that obtains by this location scanning by data collection unit 203, in reconstructing parts 204, reconstruct, to implement to launch to handle the image that obtains as positioning image and be presented on the display unit 24, be stored in simultaneously in the memory unit 201.
Then, relative position information generates parts 206 according to being stored in benchmark image in the memory unit 201 and the positional information of ROI thereof, generates reference position information (step S4).
Fig. 3 is the figure that the generation of the reference position information among the description of step S4 is handled, and is the figure that shows benchmark image 30 and ROI31 disposed thereon.Utilizing as shown in Figure 3 benchmark image 30, being arranged under the situation of positional information of the ROI31 on this benchmark image, at first, extract the detected surface in the benchmark image 30, the profile and the internal organs position of bone out.According to position and the angle of the ROI31 on the profile of this extraction and position, the image, calculate this ROI31 and with how many angles be arranged on the position apart from what with respect to the profile of the internal organs of regulation etc. and position, generate reference position information.
Then, ROI is provided with parts 207 automatically according to reference position information, and the automatic set handling to present positioning image execution ROI makes for present positioning image, with the relative position identical in fact (step S5) of benchmark image and its ROI position etc.
Fig. 4 is the figure of the automatic set handling of ROI among the description of step S5, is the figure that shows present positioning image 40 and ROI41 disposed thereon.As shown in Figure 4, ROI is provided with parts 207 automatically and extracts the profile of present positioning image 40 and internal organs position etc. out, on one side with reference to the profile of the present positioning image of this extraction etc. and reference position information, automatically on present positioning image 40, ROI41 is set on one side, makes identical in fact with the relative position of benchmark image 30 and its ROI31.
Then, in the ROI that is provided with, carry out layer image photography (main photography) (step S6) according to the photographic parameter that in step S2, is provided with.
In addition, under the situation of the different layer image of photographing, the processing of step S4 to step S6 carried out in circulation making the camera positions skew.In addition, the processing of step S4 can be carried out before the processing of step S3, also can carry out concurrently with the processing of step S5.
According to above-described structure, compare with conventional device, can access following effect.
According to this MR imaging apparatus, the same ground of position relation with benchmark image and its ROI can automatically be provided with ROI to present positioning image.Therefore, the positioning image of operator's photography of can at random selecting over, to present positioning image can easily be provided with have be arranged on this image on the ROI of the same phase relation of ROI.Even, also can to positioning image suitable ROI be set easily and promptly consequently to the unused operator of the operation of MR imaging apparatus.
In addition, because the operator is only with the visual ROI correspondence whether that just can confirm on ROI on the benchmark image and the present positioning image,, can also easily learns in addition and locate relevant operating user interface so can alleviate the operation burden.Consequently the technician of this MR imaging apparatus in hospital etc. the plan on duty of rotating is arbitrarily can both be corresponding under the form.
In addition, can be used as the automatic set handling that software is realized above-mentioned ROI.That is, can be used as the functional programs that computing machine is put rules into practice and be implemented in each function that has illustrated among each embodiment.And then, also can implement by from the recording medium of the embodied on computer readable that write down said procedure, this program being installed to computing machine.Therefore, can realize the automatic set handling of this ROI with lower cost.
And then, as required, also can be the structure that memory unit 201 is stored the reference position information that precomputes.In this case, must not have relative position information and generate parts 206, have with ROI by system the corresponding function of parts 207 is set automatically, can realize the automatic set handling of this ROI.
(embodiment 2)
Then, embodiments of the invention 2 are described.The MR imaging apparatus of present embodiment from selection reference image wherein, and uses it to realize the automatic set handling of ROI under the situation of the positioning image in the past that a plurality of ROI of being provided with are arranged.Carry out the selection of this benchmark image according to anatomic information.
Fig. 5 has showed the modular structure figure of the MR imaging apparatus 50 of embodiment 2.The difference of the structure of the structure of this MR imaging apparatus 50 and MR imaging apparatus shown in Figure 1 is described with reference to this figure.
The a plurality of positioning images that have been provided with the past of ROI of memory unit 201 storages.At this, file layout is restriction not.For example, can store to former state the image of the state that is provided with ROI, the positional information that also can store the ROI of each positioning image in the past and each image.In addition, can also store each positioning image in the past and the reference position information of each image itself.
Benchmark image alternative pack 210 (for example corresponding with " selected cell ") is according to more detected body structure between anatomic information each in present positioning image and memory unit 201 positioning image in the past, and will be chosen as benchmark image with the positioning image in present immediate past of positioning image.The anatomic information of using in this selection is according to the characteristic of present positioning image (for example under what kind of condition photograph from which direction which position etc.) and different.For example, be under the situation of head full-faced photo at present positioning image, with facing to the position (distance) of nose of center as the anatomy benchmark, select with this benchmark recently like the positioning image (head full-faced photo) in past.Use which anatomic information to pre-set in advance, also can be provided with by manual operation by each operator at the characteristic of each image.In addition, from the position of image recognition, this anatomic information can be chosen as the phase place geometry information on the image.
In addition, benchmark image alternative pack 210 judges whether there is the photography target identical with the present positioning image positioning image in relevant past in memory unit 201, be judged as under the non-existent situation, for example do not having the positioning image in the past that can become benchmark image to operator's notice by display unit 24.Carry out this judgement according to the photography position of in the photography conditions input step, importing.
Relative position information generates the positional information of parts 206 according to the benchmark image of being selected by benchmark image alternative pack 210 and its ROI, generates the reference position information of benchmark image and ROI position thereof etc.In addition, under the situation of Memory Reference positional information self, relative position information generates parts 206 and selects the reference position information corresponding with the benchmark image of being selected by benchmark image alternative pack 210.
ROI is provided with parts 207 automatically according to generated the reference position information that parts 206 generate by relative position information, at present positioning image ROI is set, and makes for present positioning image identical in fact with the relative position of benchmark image and its ROI position etc.
(photography action)
The photography action of the MR imaging apparatus 50 of the selection processing that comprises benchmark image then, is described.
Fig. 6 is the process flow diagram that is illustrated in each flow process of handling of carrying out in the photography action of this MR imaging apparatus 50.In the figure, the processing of the processing of step S11～S13 and step S1～S3 shown in Figure 2 is roughly the same.
Then, benchmark image alternative pack 210 is according to the present positioning image and the anatomic information that obtain by location scanning, selection reference image (step S14) from the positioning image in a plurality of past.
Then, relative position information generates parts 206 according to being stored in benchmark image in the memory storage 201 and the positional information of ROI thereof, generates reference position information (step S15).In addition, under the situation that has generated reference position information, also can utilize it.
Then, ROI is provided with parts 207 automatically according to reference position information, and present positioning image is provided with ROI automatically, makes for present positioning image, with the relative position identical in fact (step S16) of benchmark image and its ROI position etc.Control assembly 202 is carried out the layer image photography (main photography) (step S17) according to the photographic parameter that is provided with in the ROI that is provided with in step S2.
Such as mentioned above, according to this MR imaging apparatus, selection reference image from a plurality of positioning images that are provided with ROI uses it to carry out the automatic set handling of ROI.Therefore, can utilize the positioning image in the past that is suitable for present positioning image most,, can realize that also suitable ROI is provided with even have under other situation of individual difference at detected body.Consequently can contribution be arranged to improving quality of diagnosis.
In addition, anatomic information being carried out the benchmark image that is used for the automatic setting of ROI as benchmark selects.Therefore, can be all the time with operator's subjectivity irrespectively, realize that the high benchmark image of objectivity selects and use its ROI to be provided with.
The present invention has more than and is limited to the foregoing description itself, in the scope that does not break away from its aim the implementation phase can and specialize inscape distortion.
For example, in the above-described embodiments, benchmark image is the magnetic resonance image (MRI) in past of obtaining in this MR imaging apparatus basically.But, also can use other module, for example (standardized) magnetic resonance image (MRI) or the animated image of the image of obtaining by many slice CT, typical structoure of the human body carry out the automatic setting of above-mentioned ROI.
In addition, in the various embodiments described above, anatomic information is carried out the generation of reference position information, the selection of benchmark image, the setting of ROI as benchmark.But, have more than and be limited to the example of anatomic information as benchmark, also can use other benchmark.For example, in with the static magnetic field space of cross center (isocenter) (hub of a spool) as initial point, can determine positioning image in the past coordinate, be arranged on the coordinate of the ROI in this image, the coordinate of present positioning image, make reference position information according to their mutual alignment relation.
In addition, in the various embodiments described above, be that the situation of head is that example is illustrated with the zone of photographing.But, having more than and be limited to this, the automatic setting control function of this ROI also is effective for the photography zone (for example liver, bone, heart etc.) beyond the head.
In addition, can be out of shape and move, adjust the ROI that present positioning image is provided with automatically according to each embodiment by the manual operation of having used input block 208.For example, and the holder consistent with the limit of the crown side of the ROI40 of automatic setting shown in Figure 4 of the pointer by making mouse is pulled to the position of hope, the position on this limit can be moved to crown side.In addition, by predetermined operation, can keep the relative position on the image of its shape ground change ROI40 from input block 208.
The a plurality of inscapes that disclosed by suitably making up the foregoing description can also form various inventions.For example, can from all inscapes shown in the embodiment, delete several inscapes.And then, also can suitably make up the inscape among the different embodiment.
Claims (23)
1. MR imaging apparatus receives by the detected body in being configured in static magnetic field and apply leaning magnetic field and high frequency and the magnetic resonance signal that produces in this detected body, utilizes this magnetic resonance signal to generate photographs, it is characterized in that comprising:
Storage and benchmark image and be arranged on the relevant information of relative position relation that usefulness on this benchmark image decides the 1st region-of-interest of photography cross section place promptly define the storage unit what kind of position relation is the positional information of above-mentioned the 1st region-of-interest be set according to for the said reference image;
According to above-mentioned positional information, the region-of-interest that is provided with on positioning image with the 2nd region-of-interest that decides the photography cross section place is provided with the unit.
2. MR imaging apparatus according to claim 1 is characterized in that:
Above-mentioned region-of-interest is provided with the unit and extracts at least one anatomic information in the position of the position of the profile of the profile of the profile of the surface of the above-mentioned detected body be included on the above-mentioned photographs by image conversion, regulation bone, regulation soft tissue, regulation bone, regulation soft tissue out, according to this anatomic information, above-mentioned photographs is provided with above-mentioned the 2nd region-of-interest.
3. MR imaging apparatus according to claim 1 is characterized in that:
Also possess the input block of importing above-mentioned the 2nd region-of-interest distortion that makes setting or the indication of moving,
Above-mentioned region-of-interest is provided with the above-mentioned indication of unit according to input, makes above-mentioned the 2nd region-of-interest distortion of setting or moves.
4. MR imaging apparatus receives by the detected body in being configured in static magnetic field and apply leaning magnetic field and high frequency and the magnetic resonance signal that produces in this detected body, and utilizes this magnetic resonance signal to generate photographs, it is characterized in that comprising:
Storage is provided with the storage unit with the benchmark image of the 1st region-of-interest that decides the photography cross section place;
Generation definition is according to the positional information generation unit of what kind of position relation to the positional information of above-mentioned the 1st region-of-interest of said reference image setting;
According to above-mentioned positional information, the region-of-interest that is provided with on positioning image with the 2nd region-of-interest that decides the photography cross section place is provided with the unit.
5. MR imaging apparatus according to claim 4 is characterized in that:
Above-mentioned positional information generation unit is extracted at least one the anatomic information in the position of position, regulation soft tissue of profile, the regulation bone of profile, the regulation soft tissue of profile, the regulation bone of the surface of the above-mentioned detected body that has been included on the said reference image by image conversion out, anatomic information according to this benchmark image, generate above-mentioned positional information
Above-mentioned region-of-interest is provided with the unit and extracts at least one anatomic information in the position of the position of the profile of the profile of the profile of the surface of the above-mentioned detected body be included on the above-mentioned photographs by image conversion, regulation bone, regulation soft tissue, regulation bone, regulation soft tissue out, according to the anatomic information of this photographs, above-mentioned photographs is provided with above-mentioned the 2nd region-of-interest.
6. MR imaging apparatus according to claim 4 is characterized in that:
Also possess the said reference image that to be provided with above-mentioned the 1st region-of-interest, the above-mentioned positioning image that is provided with above-mentioned the 2nd region-of-interest, side by side or the display unit that at least a portion is shown overlappingly.
7. MR imaging apparatus according to claim 4 is characterized in that:
The said reference image is the image of being photographed in the past by this MR imaging apparatus.
8. MR imaging apparatus according to claim 4 is characterized in that:
Also possess the input block of importing above-mentioned the 2nd region-of-interest distortion that makes setting or the indication of moving,
Above-mentioned region-of-interest is provided with the above-mentioned indication of unit according to input, makes above-mentioned the 2nd region-of-interest distortion of setting or moves.
9. MR imaging apparatus receives by the detected body in being configured in static magnetic field and applies leaning magnetic field and high frequency is received in the magnetic resonance signal that produces in this detected body, utilizes this magnetic resonance signal to generate photographs, it is characterized in that comprising:
Each positioning image at the past, storage and the usefulness on each of the positioning image that is arranged on a plurality of past decide the relevant information of relative position of the 1st region-of-interest of photography cross section place, promptly define according to what kind of position to concern that the positioning image to above-mentioned past of correspondence is provided with the storage unit of the positional information of above-mentioned the 1st region-of-interest;
According to the anatomic information of the present positioning image relevant, from above-mentioned a plurality of positional informations, select to be used for the selected cell as the positional information of benchmark with the 2nd region-of-interest that decides the photography cross section place to be set at above-mentioned present positioning image with above-mentioned detected body;
The above-mentioned positional information as benchmark that use is selected, the region-of-interest that above-mentioned the 2nd region-of-interest is set on above-mentioned present positioning image is provided with the unit.
10. MR imaging apparatus according to claim 9 is characterized in that:
Above-mentioned selected cell judges whether there is the photography target identical with the above-mentioned present positioning image positioning image in relevant past in storage unit, under the situation that is judged as the positioning image that does not have the past relevant with identical photography target, there is not the information of the positioning image in the past that can become benchmark image in notice, under the situation that is judged as the positioning image that has the past relevant, carry out above-mentioned selection with identical photography target.
11. MR imaging apparatus according to claim 9 is characterized in that:
Also possess the input block of importing above-mentioned the 2nd region-of-interest distortion that makes setting or the indication of moving,
Above-mentioned region-of-interest is provided with the above-mentioned indication of unit according to input, makes above-mentioned the 2nd region-of-interest distortion of setting or moves.
12. MR imaging apparatus according to claim 9 is characterized in that:
Above-mentioned region-of-interest is provided with the unit and extracts at least one anatomic information in the position of the position of the profile of the profile of the profile of the surface of the above-mentioned detected body be included on the above-mentioned present positioning image by image conversion, regulation bone, regulation soft tissue, regulation bone, regulation soft tissue out, according to this anatomic information, above-mentioned present positioning image is provided with above-mentioned the 2nd region-of-interest.
13. a MR imaging apparatus receives by the detected body in being configured in static magnetic field and apply leaning magnetic field and high frequency and the magnetic resonance signal that produces in this detected body, and utilizes this magnetic resonance signal to generate photographs, it is characterized in that comprising:
Storage is provided with the storage unit with the positioning image in a plurality of past of the 1st region-of-interest that decides the photography cross section place respectively;
According to the anatomic information of the present positioning image relevant, from the positioning image in above-mentioned a plurality of past, select to be used for the selected cell as the benchmark image of benchmark with the 2nd region-of-interest that decides the photography cross section place to be set at above-mentioned present positioning image with above-mentioned detected body;
Generation definition is according to the positional information generation unit of what kind of position relation to the positional information of above-mentioned the 1st region-of-interest of said reference image setting;
According to above-mentioned positional information, on above-mentioned present positioning image, be provided with and use the region-of-interest of the 2nd region-of-interest that decides the photography cross section place that the unit is set.
14. MR imaging apparatus according to claim 13 is characterized in that:
Above-mentioned selected cell judges whether there is the photography target identical with the above-mentioned present positioning image positioning image in relevant past in storage unit, under the situation that is judged as the positioning image that does not have the past relevant with identical photography target, there is not the information of the positioning image in the past that can become benchmark image in notice, under the situation that is judged as the positioning image that has the past relevant, carry out above-mentioned selection with identical photography target.
15. MR imaging apparatus according to claim 13 is characterized in that:
Also possess the input block of importing above-mentioned the 2nd region-of-interest distortion that makes setting or the indication of moving,
Above-mentioned region-of-interest is provided with the above-mentioned indication of unit according to input, makes above-mentioned the 2nd region-of-interest distortion of setting or moves.
16. MR imaging apparatus according to claim 13 is characterized in that:
Above-mentioned selected cell is extracted at least one the anatomic information in the position of position, regulation soft tissue of profile, the regulation bone of profile, the regulation soft tissue of profile, the regulation bone of the surface of the above-mentioned detected body that has been included on the above-mentioned present positioning image by image conversion out, according to the anatomic information of this benchmark image, select the said reference image.
17. MR imaging apparatus according to claim 13 is characterized in that:
Above-mentioned positional information generation unit is extracted at least one the anatomic information in the position of position, regulation soft tissue of profile, the regulation bone of profile, the regulation soft tissue of profile, the regulation bone of the surface of the above-mentioned detected body that has been included on the said reference image by image conversion out, anatomic information according to this benchmark image, generate above-mentioned positional information
Above-mentioned region-of-interest is provided with the unit and extracts at least one anatomic information in the position of the position of the profile of the profile of the profile of the surface of the above-mentioned detected body be included on the above-mentioned present positioning image by image conversion, regulation bone, regulation soft tissue, regulation bone, regulation soft tissue out, according to this anatomic information, above-mentioned present positioning image is provided with above-mentioned the 2nd region-of-interest.
18. MR imaging apparatus according to claim 17 is characterized in that:
Also possess the said reference image that to be provided with above-mentioned the 1st region-of-interest, the above-mentioned present positioning image that is provided with above-mentioned the 2nd region-of-interest, side by side or the display unit that at least a portion is shown overlappingly.
19. MR imaging apparatus according to claim 17 is characterized in that:
The said reference image is the image of being photographed in the past by this MR imaging apparatus.
20. the control method of a MR imaging apparatus, be to receive by the detected body in being configured in static magnetic field to apply leaning magnetic field and high frequency and the magnetic resonance signal that in this detected body, produces, and utilize this magnetic resonance signal to generate the control method of the MR imaging apparatus of photographs, it is characterized in that:
According to positional information, on positioning image, be provided with the 2nd region-of-interest that decides the photography cross section place, wherein above-mentioned positional information is the relevant information of relative position relation that benchmark image and the usefulness on being arranged on this benchmark image decide the 1st region-of-interest of photography cross section place, what kind of promptly define according to the positional information of position relation to above-mentioned the 1st region-of-interest of said reference image setting
Use is provided with the above-mentioned positioning image of above-mentioned the 2nd region-of-interest, the layer image relevant with this detected body of photographing.
21. the control method of a MR imaging apparatus, be to receive by the detected body in being configured in static magnetic field to apply leaning magnetic field and high frequency and the magnetic resonance signal that in this detected body, produces, and utilize this magnetic resonance signal to generate the control method of the MR imaging apparatus of photographs, it is characterized in that:
Generation definition is provided with the positional information of using the 1st region-of-interest that decides the photography cross section place according to what kind of position relation to benchmark image,
According to above-mentioned positional information, on positioning image, be provided with the 2nd region-of-interest that decides the photography cross section place.
22. the control method of a MR imaging apparatus, be to receive by the detected body in being configured in static magnetic field to apply leaning magnetic field and high frequency and the magnetic resonance signal that in this detected body, produces, and utilize this magnetic resonance signal to generate the control method of the MR imaging apparatus of photographs, it is characterized in that:
Each positioning image stored position information in storage unit at the past, wherein above-mentioned positional information be with each of the positioning image that is arranged on a plurality of past on usefulness decide the relevant information of relative position of the 1st region-of-interest of photography cross section place, promptly define the positional information that according to what kind of position relation the positioning image in the above-mentioned past of correspondence is provided with above-mentioned the 1st region-of-interest
According to the anatomic information of the present positioning image relevant with above-mentioned detected body, from above-mentioned a plurality of positional informations, select to be used for the positional information as benchmark of using the 2nd region-of-interest that decides the photography cross section place being set at above-mentioned present positioning image,
The above-mentioned positional information as benchmark that use is selected is provided with above-mentioned the 2nd region-of-interest on above-mentioned present positioning image.
23. the control method of a MR imaging apparatus, be to receive by the detected body in being configured in static magnetic field to apply leaning magnetic field and high frequency and the magnetic resonance signal that in this detected body, produces, and utilize this magnetic resonance signal to generate the control method of the MR imaging apparatus of photographs, it is characterized in that:
Storage is provided with the positioning image with a plurality of past of the 1st region-of-interest that decides the photography cross section place respectively in storage unit,
Anatomic information according to the present positioning image relevant with above-mentioned detected body, from the positioning image in above-mentioned a plurality of past, select to be used for the benchmark image as benchmark of using the 2nd region-of-interest that decides the photography cross section place being set at above-mentioned present positioning image
Generation definition is according to the positional information of what kind of position relation to above-mentioned the 1st region-of-interest of said reference image setting,
According to above-mentioned positional information, on above-mentioned present positioning image, be provided with the 2nd region-of-interest that decides the photography cross section place.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102138793A (en) * | 2010-01-29 | 2011-08-03 | Ge医疗系统环球技术有限公司 | Magnetic resonance imaging apparatus |
| US8073527B2 (en) | 2006-09-29 | 2011-12-06 | Siemens Aktiengesellschaft | Field generating unit of a combined MR/PET system |
| CN103377480A (en) * | 2012-04-12 | 2013-10-30 | 刘业东 | Medical image imaging system |
| CN103519811A (en) * | 2012-06-29 | 2014-01-22 | Ge医疗系统环球技术有限公司 | Detection apparatus, medical apparatus, and program |
| CN104717920A (en) * | 2012-11-22 | 2015-06-17 | 株式会社东芝 | Magnetic resonance imaging device and magnetic resonance imaging method |
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| US5891035A (en) * | 1996-09-25 | 1999-04-06 | Atl Ultrasound, Inc. | Ultrasonic diagnostic imaging system with data access and communications capability |
| US5938607A (en) * | 1996-09-25 | 1999-08-17 | Atl Ultrasound, Inc. | Ultrasonic diagnostic imaging system with access to reference image library |
| NO975308L (en) * | 1996-11-21 | 1998-05-22 | Atl Ultrasound Inc | Imaging ultrasound diagnostic system with data access and communication capability |
| DE19826994C1 (en) * | 1998-06-19 | 1999-11-25 | Forschungszentrum Juelich Gmbh | Image generation method for nuclear spin tomography |
| US6379043B1 (en) * | 1998-12-08 | 2002-04-30 | U.S. Philips Corporation | X-ray examination apparatus and method for generating distortion-free X-ray images |
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| US8073527B2 (en) | 2006-09-29 | 2011-12-06 | Siemens Aktiengesellschaft | Field generating unit of a combined MR/PET system |
| CN102138793A (en) * | 2010-01-29 | 2011-08-03 | Ge医疗系统环球技术有限公司 | Magnetic resonance imaging apparatus |
| CN102138793B (en) * | 2010-01-29 | 2015-10-21 | Ge医疗系统环球技术有限公司 | MR imaging apparatus |
| CN103377480A (en) * | 2012-04-12 | 2013-10-30 | 刘业东 | Medical image imaging system |
| CN103519811A (en) * | 2012-06-29 | 2014-01-22 | Ge医疗系统环球技术有限公司 | Detection apparatus, medical apparatus, and program |
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| CN104717920A (en) * | 2012-11-22 | 2015-06-17 | 株式会社东芝 | Magnetic resonance imaging device and magnetic resonance imaging method |
| CN104717920B (en) * | 2012-11-22 | 2018-04-27 | 东芝医疗系统株式会社 | MR imaging apparatus and MR imaging method |
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| CN1670517B (en) | 2010-12-22 |
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Effective date of registration: 20160803 Address after: Japan Tochigi Patentee after: Toshiba Medical System Co., Ltd. Address before: Tokyo, Japan, Japan Patentee before: Toshiba Corp Patentee before: Toshiba Medical System Co., Ltd. |