CN101332085A - Medical diagnostic imaging apparatus, medical image processing method, and computer program product - Google Patents
Medical diagnostic imaging apparatus, medical image processing method, and computer program product Download PDFInfo
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- CN101332085A CN101332085A CNA2008100086223A CN200810008622A CN101332085A CN 101332085 A CN101332085 A CN 101332085A CN A2008100086223 A CNA2008100086223 A CN A2008100086223A CN 200810008622 A CN200810008622 A CN 200810008622A CN 101332085 A CN101332085 A CN 101332085A
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Abstract
The invention relates to a medical diagnostic imaging apparatus, medical image processing method, and computer program product. A main control unit 15 receives specification of a reference plane for which the cross section of a region of an object is imaged from an operator via an input unit 11, and a coordinate system setting unit 16 specifies the kind of the region cross sectional image of the reference plane to be one of an axial plane, a sagittal plane and a coronal plane. Also, the coordinate system setting unit 16 specifies vertical, horizontal, and anteroposterior directions on the reference plane and sets a region coordinate system based on the anatomical characteristic of the region on the basis of the specified kind of the reference plane and the respective specified directions on the reference plane.; Further, the main control unit 15 stores information about relationship between a patient coordinate system based on the posture during imaging of the subject and the region coordinate system in association with an image stored by a storage unit 14.
Description
The application enjoys the interests of the priority of Japanese patent application No. 2007-24231 that applied on February 2nd, 2007 and the Japanese patent application No. 2007-301630 that applied on November 21st, 2007, quotes the full content of this Japanese patent application in this application.
Technical field
The present invention relates to reconstruct image and show medical diagnostic imaging apparatus, medical image processing method and the computer program of reconstituted image based on the information of in measured body, collecting.
Background technology
In recent years, at MRI (magnetic resonance imaging: magnetic resonance image (MRI)) device or CT (computer tomography: computed tomography) in the medical diagnostic imaging apparatus such as device, follow the progress of camera technique or image processing techniques, can under various position or angle, make a video recording by the image to various positions patient's (measured body) as diagnosis object.For example, (Japan) spy opens in the technology of putting down in writing in the 2003-210430 communique, discloses the technology that can be easily the cross sections of vertebral bodys such as the vertebra that is difficult to take the cross section picture owing to three-dimensional ground is crooked or lumbar vertebra is looked like to make a video recording.
In this medical diagnostic imaging apparatus, for position on the basis of representing use device and angle, with the device be the center defined about the expression, about and before and after the coordinate system of three directions.This coordinate system is the inherent coordinate system of device, is called " device coordinate system ".But the patient is taken with various positions or direction, so when diagnosing, need be different from the device coordinate system is the coordinate system of benchmark with patient's position or direction.Therefore, in medical diagnostic imaging apparatus, definition is by patient's position (dorsal position, ventricumbent position, right arm reclining, left lateral position) and the variable coordinate system that determines to the direction of insertion (from the beginning, from foot) of installing when making a video recording at every turn.The coordinate system of the unique decision of posture when this coordinate system is based on patient's shooting is called " patient coordinate system ".
Therefore, according to the kind of the inspection in the medical treatment, sometimes to a plurality of positions of patient diagnosis.At this moment, when diagnosis, need the image of each position shooting still be made a video recording to each position, the total time that needs except making a video recording was elongated, the patient's who is taken burden was also bigger.Therefore, in this case, generally be in medical diagnostic imaging apparatus will by the scope that a shot is taken set broad, take thereby a plurality of positions are summed up as once.At this moment, the direction at the position in the image that is taken all shows based on same patient coordinate system.
But when each position was diagnosed, the direction that photographs the position in the image was represented based on patient coordinate system, has the problem of reading the shadow difficulty.Usually, when each position is diagnosed, with the anatomy viewpoint, to be benchmark to the direction (direction before and after reaching up and down) that each position is set inherently, carry out inspection from the angle of versatility, but this is because not necessarily consistent with the direction of representing with patient coordinate system in this direction that becomes benchmark.
This problem is for example to not stretching health or upper limb (arm), lower limb (foot) and the patient who lies down when making a video recording, perhaps, remarkable especially will be as foot also being included in when taking in the image pickup scope to the position that a plurality of directions tilt under the position of nature with respect to axon.
Summary of the invention
This invention is made in order to remove above-mentioned the problems of the prior art, its purpose is, a kind of medical diagnostic imaging apparatus, medical image processing method and computer program are provided, based on the anatomy viewpoint, can show the image that has been illustrated the direction that each position is set inherently.
In order to solve above-mentioned problem and to realize purpose, the medical diagnostic imaging apparatus of a relevant mode of the present invention possesses: storage part, the medical imaging of storage measured body; And preservation portion, with with first coordinate system and second coordinate system between the relevant information of relativeness, attach in medical imaging and preserve by above-mentioned storage portion stores, wherein, the posture of above-mentioned first coordinate system when taking above-mentioned measured body, above-mentioned second coordinate system is different from this first coordinate system.
In addition, the medical imaging of the medical image processing method of alternate manner of the present invention storage measured body; With with first coordinate system and second coordinate system between the relevant information of relativeness, attach in medical imaging and preserve by above-mentioned storage portion stores, wherein, the posture of above-mentioned first coordinate system when taking above-mentioned measured body, above-mentioned second coordinate system is different from this first coordinate system.
In addition, the computer program of another way of the present invention, recording medium, the medical imaging of storage measured body with the embodied on computer readable that comprises a plurality of orders that are used to handle medical imaging; With with first coordinate system and second coordinate system between the relevant information of relativeness, attach in medical imaging and preserve by above-mentioned storage portion stores, wherein, the posture of above-mentioned first coordinate system when taking above-mentioned measured body, above-mentioned second coordinate system is different from this first coordinate system.
Description of drawings
Fig. 1 is the concept map that is used to illustrate that the position coordinate system of the MRI device of present embodiment 1 is set.
Fig. 2 is the functional block diagram of formation of the MRI device of expression present embodiment 1.
Fig. 3 is the functional block diagram that constitute of expression by the software of computer shown in Figure 2 10 execution.
Fig. 4 is the flow chart (1) of the flow process set of the position coordinate system of expression present embodiment 1.
Fig. 5 is the flow chart (2) of the flow process set of the position coordinate system of expression present embodiment 1.
Fig. 6 is used to illustrate the figure that specifies the operation till the datum level.
Fig. 7 is the flow chart (1) of the flow process set of the position coordinate system of expression present embodiment 2.
Fig. 8 is the flow chart (2) of the flow process set of the position coordinate system of expression present embodiment 2.
Fig. 9 is the flow chart (3) of the flow process set of the position coordinate system of expression present embodiment 2.
Figure 10 is the figure that is used to illustrate the operation till the kind of specifying datum level B.
The specific embodiment
Below, the preferred embodiment of the medical diagnostic imaging apparatus that present invention will be described in detail with reference to the accompanying, medical image processing method and computer program.And, in embodiment shown below, be that the center describes in the MRI device, to use situation of the present invention.In addition, below, will be called " anatomical orientation " according to the direction that the anatomy viewpoint is set inherently to each position.
At first, the notion that the position coordinate system of the MRI device of present embodiment 1 is set describes.Fig. 1 is the figure that is used to illustrate the notion that the position coordinate system of the MRI device of present embodiment 1 is set.This figure (a)～(d) represents respectively patient coordinate system is made as (x
p, y
p, z
p) time image, (a) image in expression head front, (b) image in expression foot side and foot front.In addition, (c) the cross section picture of the head shown in the expression (a), (d) sectional view of the foot shown in the expression (b).
Here, this figure (c) and " AHL ", " LAH ", " PFR " that (d) represent reach " RPF " and are based on the directional information that the patient coordinate system direction is given respectively, the literal of expression left and right directions is made as R/L (right side/left side), the literal of expression above-below direction is made as H/F (on/down), and the literal that will represent fore-and-aft direction is when being made as A/P (front/rear), by make up each literal represent the cross section picture about, about and inclined back and forth.
Like this, representing based on patient coordinate system in the image of direction, owing to be expressed as the image that the position tilts to a plurality of directions, so can not judge intuitively this position is with respect to anatomical orientation which kind of degree that tilts.
Therefore, in the MRI of present embodiment 1 device, be different from device coordinate system and patient coordinate system, set the coordinate system of the direction that expression sets inherently to each position anatomically.Below this coordinate system is called " position coordinate system ".
In present embodiment 1, from the cross section picture of taking measured body, to be registered as datum level by specified 1 image of operator, and then, from axial (axial) face, sagittal (sagittal) face or crown (coronal) face, determine the kind of this datum level, inherent position coordinate system is set at this position based on the kind of the datum level of determining.
Fig. 1 (e) reaches (f), and expression is made as (x with the position coordinate system
d, y
d, z
d) time image, illustrate (c) respectively and the cross section (d) looks like to be registered as datum level, and then each datum level is defined as the situation of axial vane surface.
Like this, represented based on the position coordinate system under the situation of direction, in the image of datum level, directional information is with 1 textual representation, so can intuitively be judged as the cross section picture that 1 direction (being above-below direction in this example) in 3 directions that this cross section similarly is from anatomical orientation to be comprised (up and down, and before and after direction) is seen.
Like this, in the MRI of present embodiment 1 device, can show the image that has been illustrated the direction that each position is set inherently based on the anatomy viewpoint.
Then, the structure to the MRI device of present embodiment 1 describes.Fig. 2 is the functional block diagram of formation of the MRI device of expression present embodiment 1.As shown in the drawing, this MRI device comprises static field magnet 1, gradient magnetic field coil 2, RF coil 3, magnetostatic field power supply 4, leaning magnetic field power supply 5, transmitter 6, receptor 7, sequence (sequence) control device 8 and computer 10.
Static field magnet 1 is the Magnet that forms tubular, by the electric current of supplying with from magnetostatic field power supply 4, produces magnetostatic field H in disposing the tube volume inside of measured body P
0Gradient magnetic field coil 2 is arranged on 3 pairs of coils of the inboard of static field magnet 1, by the electric current of supplying with from leaning magnetic field power supply 5, produces along the leaning magnetic field of 3 directions of x, y, z in the inboard of static field magnet 1.
RF coil 3 is to be arranged to the opposed coil with measured body P in the peristome of static field magnet 1, to the RF ripple of measured body P irradiation from transmitter 6 transmissions, and, receive the MR signal of from the hydrogen nuclei of measured body P, emitting by excitation.Magnetostatic field power supply 4 is power supplys from electric current to static field magnet 1 that supply with, and leaning magnetic field power supply 5 is based on power supply from the indication of sequence control device 8 to gradient magnetic field coil 2 that supply with electric current from.
Sequence control device 8 is based on the sequence information that sends from computer 10 and drives the device that leaning magnetic field power supply 5, transmitter 6 and receptor 7 carry out the photography of measured body P.Here, the intensity of the RF signal that sends to RF coil 3 of so-called " sequence information " timing, transmitter 6 of being meant the intensity of the power supply that leaning magnetic field power supply 5 is supplied with to gradient magnetic field coil 2 or supply power or send the information that the timing of RF signal, the timing that receptor 7 detects the RF signals etc. have defined the order when making a video recording.
In addition, the result that sequence control device 8 carries out the photography of measured body P is when from transmitter 6 transmission initial datas, and this initial data is transmitted to computer 10.
When computer 10 is based on and carries out the control of MRI device from operator's indication, reconstruct the device of image by the initial data that sends from sequence control device 8.This computer 10 is connected with DICOM (digital imaging and communications in medicine) server 30 by network 20.DICOM server 30 is to preserve to pass through computer 10 server of the image of conversion again.
Then, the formation to the software that passes through computer 10 execution shown in Figure 2 describes.Fig. 3 is the functional block diagram that constitute of expression by the software of computer shown in Figure 2 10 execution.As shown in the drawing, this software comprises that as conceptual function portion input part 11, display part 12, DICOM server interface portion 13, storage part 14, master control part 15, coordinate system configuration part 16, sequence control part 17, image reconstruct portion 18 and data transport unit 19.
DICOM server interface portion 13 is handling parts of controlling by the transmitting-receiving of the data of exchange between network 20 and the DICOM server 30.For example, this DICOM clothes are equipped with device interface portion 13 and send to DICOM server 30 and reconstruct portion's 18 reconstituted data etc. by image described later.
And master control part 15 is based on controlling coordinate system described later configuration part 16 from operator's indication, thereby for the position coordinate system of the anatomical features at the position that has based on measured body by the image setting of storage part 14 storages.And,, describe in detail in the back for the processing sequence of the setting of this position coordinate system.
And, after having set the position coordinate system by coordinate system configuration part 16, when having taken the image of measured body, master control part 15 generates and the patient coordinate system of posture when taking this measured body and the relevant information of relativeness between the coordinate system of position, the information that generates is attached on this image of being stored by storage part 14 preserve.Here, the information relevant with the dependency relation of the frame of reference and position coordinate system is the information of the relative position relation of expression two coordinate systems, and for example utilizing coordinate with any one party is expressions such as the anglec of rotation of benchmark and amount of movement.
In addition, master control part 15 is also attached the information relevant with each coordinate system on this image and is preserved when the preservation information relevant with the dependency relation of patient coordinate system and position coordinate system.Here, the information relevant with coordinate system is the information of the direction of the image represented based on this coordinate system of expression, for example represents with vector etc.
And, master control part 15 is when storage part 14 reads captured image and be presented on the display part 12, based on the relevant information of position coordinate system of attaching on this image, generate about the expression, about and the directional information of fore-and-aft direction, show with this image.Thus, carry out image read shadow the time, the person grasps the direction at position easily to read the shadow.
And, here suppose that master control part 15 represents directional information based on the information of relevant position coordinate system, but for example select to represent directional information according to which coordinate system of patient coordinate system or position coordinate system based on indication from the operator, can be based on the information of the coordinate system of relevant selection, in display part 12 display direction information.Thus, the operator can suitably select the direction of the image of suitable diagnosis.
Coordinate system configuration part 16 is based on the handling part that carries out the setting of position coordinate system from the indication of master control part 15.Particularly, this setting coordinate portion 16 is following handling parts: will be by the operator based on the cross section picture at the specified position of anatomical knowledge as datum level, the kind of this datum level is defined as in axial vane surface, sagittal plane or the coronalplane any, and then determine in this cross section, datum level position picture about, about and before and after direction, set the position coordinate system based on all directions in the kind of the datum level of determining, the definite datum level.And, describe in detail in the back for the processing sequence of the setting of this position coordinate system.
Image reconstructs portion 18 and uses the initial data that sends from sequence control device 8 to reconstruct treatment of picture portion.Particularly, this image reconstructs portion 18 based on the indication from master control part 15 described later, read the initial data that is stored in the storage part 14, the initial data that reads out is carried out predetermined picture such as Fourier transform processing and reconstruct processing, thereby reconstruct two dimension or three-dimensional image.And image reconstructs portion 18 if reconstruct 3-D view, then reconstituted image is stored in the storage part 14.
The flow process of the position coordinate system setting of present embodiment 1 then, is described.Fig. 4 and 5 is flow charts of the flow process set of the position coordinate system of expression present embodiment 1.And, here, describe with the center that is treated to of being undertaken by computer shown in Figure 3 10.
In computer 10, at first as shown in Figure 4, accepted shooting when indication (step S101, "Yes") of positioning image by input part 11, based on specified imaging conditions, to positioning image make a video recording (step S102) in master control part 15.Here so-called " positioning image " is meant the image of representing when the shooting plan that setting is used to take measured body.
Here, if specify the shooting order of image, then master control part 15 sends the sequence information that generates at first based on specified imaging conditions formation sequence information to sequence control device 8.Thus, in sequence control device 8, make a video recording.And when from sequence control device 8 transmission initial datas, sequence control part 17 makes the original data storage of transmission in storage part 14.Then, image reconstructs portion 18 and reads initial data from storage part 14, reconstructs positioning image by the initial data that reads out, and is stored in the storage part 14.
When reconstructing portion 18 by image in storage part 14 during the store location image, master control part 15 reads this positioning image, is presented at (step S103) on the display part 12.
Then, when master control part 15 receives shooting when indication (step S104 of the oblique picture (having taken the image of oblique section) for positioning image by input part 11, "Yes"), indicated oblique picture is made a video recording (step S105), the oblique picture of being made a video recording is presented at display part 12 (step S106).Master control part 15 repeats the shooting and the demonstration of indicated oblique picture during the shooting indication of accepting oblique picture.
On the other hand, (step S107 when having accepted the appointment of datum level by input part 11, "Yes"), indicate 15 pairs of coordinate system configuration parts 16 of master control part, so that will register (step S108) as datum level at this cross section picture (positioning image or oblique picture) that is shown in constantly on the display part 12.
Here, utilize Fig. 6 that the operation till the appointment datum level is described.And, stand in the operation of operator's viewpoint explanation to the MRI device at this.These figure (a) and (b) reach the image that the foot of having taken measured body (c) is shown respectively.For example, when the cross section shown in (a) was looked like to be made as positioning image, the operator was to the tangent plane (sliceplane) of this positioning image appointment perpendicular to this foot.By this operation, (b) cross section shown in looks like to be taken and is oblique picture.
The operator can be to this tiltedly as the tangent plane of further specifying perpendicular to this foot.Like this, by repeating the shooting of oblique picture, thereby the operator can be based on anatomical knowledge, seek with anatomy be set in the cross-sectional image at any vertical this position of direction in the direction on the foot.And the operator looks like to be appointed as datum level (with reference to this figure (c)) with the cross section that searches out.
Return Fig. 4, indicated datum level registration coordinate system configuration part 16 from the vertical cross section of coordinate axes (axial vane surface, sagittal plane and coronalplane) by patient coordinate system definition detect the vertical cross-section (step S109) that is positioned at the angle minimum that the vertical cross-section of the position of approaching indicated datum level promptly reports to the leadship after accomplishing a task.
In addition, at detected face (step S110, "Yes") under the situation of axial vane surface, coordinate system configuration part 16 will be made as the z axle perpendicular to the direction of datum level, and the left and right directions of datum level is made as the x axle, and the above-below direction of datum level is made as y axle (step S111).In addition, when detected face is not axial vane surface (step S110, "No"), but (step S112 under the sagittal situation, "Yes"), coordinate system configuration part 16 will be made as the x axle perpendicular to the direction of datum level, and the left and right directions of datum level is made as the y axle, and the above-below direction of datum level is made as z axle (step S113).
And, detected face be not axial vane surface neither the situation of sagittal plane (being coronalplane) under (step S112, "No"), coordinate system configuration part 16 will be made as the y axle perpendicular to the direction of datum level, the left and right directions of datum level is made as the x axle, the above-below direction of datum level is made as z axle (step S114).And intersect by the central vertical that x axle, y axle, the z axle that will set is configured to each comfortable datum level coordinate system configuration part 16, thereby set the position coordinate system.
Like this, coordinate system configuration part 16 is for the datum level of being set based on anatomical knowledge by the operator, from the vertical cross-section (axial vane surface, sagittal plane and coronalplane) of patient coordinate system, detect nearest face, set the position coordinate system based on detected cross section, the operator can be to be easy to inherent position, anatomical each position of operating and setting coordinate system.
Then, as shown in Figure 5, master control part 15 has been accepted by input part 11 under the situation of shooting indication of image (step S115, "Yes"), with the same order of shooting order of above-mentioned positioning image, carries out the shooting (step S116) of indicated image.And, master control part 15 with patient coordinate system and position coordinate system between the relevant information of relativeness, and the information relevant with each coordinate system, attach and on this image, preserve (step S117).
Then, master control part 15 is captured pictorial display (step S118) on display part 12, and then, based on the relevant information of position coordinate system of attaching on this image, display direction information (step S119).
In addition, master control part 15 is under the situation of the transmission indication of having accepted image by input part 11 (step S120, "Yes"), and indication transmits the view data of this image to data transport unit 19.
The data transport unit 19 of having accepted this indication reads out the view data of indicated image from storage part 14, the view data that reads out with attaching the relevant information of position coordinate system on this image together, is sent (step S121) by DICOM server interface portion 13 to DICOM server 30.
Here, data transport unit 19 will be transmitted to DICOM server 30 together by the image of the storage part 14 storage information relevant with attaching position coordinate system on this image, so also can show the image that is illustrated the direction of each position being set inherently based on the anatomy viewpoint in DICOM server 30.
As mentioned above, in present embodiment 1, the anatomical features at the position that has based on measured body is set the inherent coordinate system in each position, so can show the image that is illustrated the direction of each position being set inherently based on the anatomy viewpoint.
And, in present embodiment 1, master control part 15 has accepted to take the appointment of the datum level in cross section, measured body position by input part 11 from the operator, and coordinate system configuration part 16 is defined as in axial vane surface, sagittal plane or the coronalplane any with the kind of cross section, the position picture of this datum level.And, and then, coordinate system configuration part 16 determine in the datum levels about, about and before and after direction, based on all directions in the kind of the datum level of determining and the datum level determined, set the position coordinate system.Thus, in present embodiment 1,, can show the image that is illustrated the direction that each position is set inherently based on operator's anatomical knowledge.
Therefore, in the foregoing description 1, illustrated and specified from the operator under the situation of datum level, from with the vertical cross section of coordinate axes (axial vane surface, sagittal plane and coronalplane) by patient coordinate system definition detect the face of approaching specified datum level, thereby determine the kind of datum level, and automatically set the situation of position coordinate system based on the kind of the datum level of determining.
But, the invention is not restricted to this, can be with the kind of datum level determine to set by the time the judgement that the operator is given in the required various judgements in coordinate system position, position.Thus, according to operator's requirement, can set the position coordinate system neatly.
Therefore, below, with the operator not only can the input reference face selection can also the input reference face the determining or the situation of the direction of coordinate axes etc. of kind, describe as embodiment 2.But the structure of the MRI device of present embodiment 2 is identical with embodiment 1, and just the master control part 15 of computer 10 is different with the processing of being undertaken by coordinate system configuration part 16, and here, the flow process that the position coordinate system of present embodiment 2 is set describes.
Fig. 7, Fig. 8 and Fig. 9 are the flow charts of the flow process set of the position coordinate system of expression present embodiment 2.And, describe with the center that is treated to of being undertaken similarly to Example 1 here, for omitting explanation with the same processing of Fig. 4 and processing illustrated in fig. 5 by computer shown in Figure 3 10.
At first, identical for the processing of step S201 shown in Figure 7～S207 with the processing of step S101 shown in Figure 4～S107, so omit explanation.But, wherein be called datum level A at this by the specified datum level of operator.
Indicated 16 pairs of master control part 15 in coordinate system configuration part of registration datum level A to indicate, made on the image that is shown in the datum level A on the display part 12 display plane figure ROI (Region OfInterest).Here, so-called " plane graph ROI " is the zone of the scope of expression rectangular shape, is used for the operator to the position of datum level A appointment perpendicular to the datum level B (cross section picture) of datum level A.
When receiving the demonstration indication of plane graph ROI, master control part 15 is display plane figure ROI (step S210) on the datum level A that is shown on the display part 12, waits for the appointment of the position of datum level B.
And as shown in Figure 8, master control part 15 has been accepted by input part 11 coordinate system configuration part 16 to be indicated, so that the cross section of specified position is looked like to be registered as datum level B under the specified situation of position of datum level B (step S211, "Yes").
The kind of having indicated the coordinate system configuration part 16 of registration datum level B to ask datum level B to the operator.At this moment, coordinate system configuration part 16 bases are the kind of specified datum level A, and the candidate of dwindling datum level B shows this candidate on display part 12.
Particularly, coordinate system configuration part 16 is (step S213, "Yes") under the situation of axial vane surface at datum level A, and master control part 15 is indicated, and makes to show sagittal plane and the coronalplane candidate (step S214) as datum level B.
In addition, when datum level A be not axial vane surface (step S213, "No"), but (step S215 under the sagittal situation, "Yes"), the 16 pairs of master control part 15 in coordinate system configuration part are indicated, and feasible demonstration axial vane surface and coronalplane are as the candidate (step S216) of datum level B.
And then, when detected face be not axial vane surface neither the situation of sagittal plane (being coronalplane) under (step S215, "No"), the 16 pairs of master control part 15 in coordinate system configuration part are indicated, and feasible demonstration axial vane surface and sagittal plane are as the candidate (step S217) of datum level B.
And master control part 15 has been accepted by input part 11 under the situation of kind of the datum level B that selects from the candidate that shows (step S218, "Yes"), the kind of the datum level B that accepts to coordinate system configuration part 16 notices.
Like this, master control part 15 shows the kind of remaining two cross section pictures that the kind of the cross section picture of the kind that will be defined as datum level A from axial vane surface, sagittal plane or coronalplane is removed.And under the situation that any person of being operated of the kind apoplexy due to endogenous wind of two cross section pictures that show selects, coordinate system configuration part 16 is defined as the kind of datum level B with the kind of selected cross section picture, so can easily carry out operator's operation.
Here, with Figure 10 the operation till the kind of specifying datum level B is described.And, at this, stand in operator's viewpoint, the operation to the MRI device is described.This figure (a)～(g) represents image that the head of measured body is made a video recording respectively.For example, if the cross section shown in (a) is looked like to be made as positioning image, then the operator is to the tangent plane of this positioning image appointment perpendicular to this head.By this operation, suppose that the cross section shown in (b) looks like to be taken and be oblique picture.
The operator is to the further tangent plane of specifying perpendicular to this head of this oblique picture.By repeating this operation (reaching (d) with reference to this figure (c)), the cross section picture at any vertical this position in operator's searching and the anatomical orientation looks like to be appointed as datum level A with the cross section of finding.
And then the operator specifies the kind of datum level A.For example, the operator specifies the kind (with reference to this figure (e)) of coronalplane (CO) as datum level A.In this stage, by MRI device display plane figure ROI on datum level A.
The operator is by this plane graph of rotation ROI, the camera position (with reference to this figure (f)) of specifying datum level B.At this moment, the candidate that shows the kind of datum level B by the MRI device.For example, suppose that the operator has specified coronalplane as datum level A, then the candidate as datum level B shows axial vane surface (AX) and sagittal plane (SG).The operator is from wherein for example selecting sagittal plane (with reference to this figure (g)).
Return Fig. 8, the kind of notice datum level B, coordinate system configuration part 16 is based on this kind, the classification in the zone of the datum level A that the plane graph ROI (datum level B) that shows on the operator requires by display device 12 is cut apart (on/down or down/last a, the left side/right side or the right side/left side, front/rear or after/preceding) appointment.
Particularly, at this moment, coordinate system configuration part 16 dwindles the candidate of the classification in zone based on the kind of specified datum level B, shows this candidate to master control part 15 indications on display part 12.Classification by in the zone of this decision when defining the position coordinate system in the back, can determine the direction of the coordinate axes (x axle, y axle and z axle) of three-dimensional respectively.
Particularly, at datum level B (step S219, "Yes") under the situation of axial vane surface, coordinate system configuration part 16 shows " H/F (on/down) " and " F/H (descend/on) " (step S220) to master control part 15 indications as the candidate of the classification in divided zone.
In addition, at datum level B is not axial vane surface (step S219, "No") (step S221 but under the sagittal situation, "Yes"), coordinate system configuration part 16 is to the candidate demonstration " R/L (right side/left side) " and " L/R (left side/right side) " (step S222) of master control part 15 indications as divided zone.
And then, detected face be not axial vane surface neither the situation of sagittal plane (being coronalplane) under (step S221, "No"), coordinate system configuration part 16 is to candidate demonstration " A/P (front/rear) " and " P/A (back/preceding) " (the step S223) of master control part 15 indications as divided zone.
And master control part 15 has been accepted by input part 11 under the situation of classification in the zone selected from the candidate that shows (step S224, "Yes"), the classification to the zone that coordinate system configuration part 16 notices receive.
And when receiving the classification in zone, coordinate system configuration part 16 is based on this regional classification and specified datum level A and datum level B setting x axle, y axle and z axle.
For example, A has specified axial vane surface as datum level, B has selected sagittal plane as datum level, classification in the zone of the datum level A of being cut apart by plane graph ROI (datum level B) is under the situation on " L/R (left side/right side) ", vertically define the z axle with respect to datum level A from the lining to the front, along laterally defining the x axle from left to right, longitudinally from defining y axle (step S225) down up.
And coordinate system configuration part 16 is configured to respectively central vertical at plane graph ROI with x axle, y axle, the z axle of setting, thereby sets the position coordinate system.
Below, the processing of step S226～S232 is identical with the processing of step S115 shown in Figure 5～S121, omits explanation here.
As mentioned above, in present embodiment 2, master control part 15 is accepted the input of the kind of any the cross section picture axial vane surface, sagittal plane or the coronalplane by input part 11 from the operator, and the kind that the cross section picture of input will have been accepted in coordinate system configuration part 16 is defined as the kind of datum level A.In addition, master control part 15 is by the appointment of input part 11 from operator's acceptance and the vertical datum level B of datum level A, under the specified situation of having accepted datum level B, coordinate system configuration part 16 is defined as in axial vane surface, sagittal plane or the coronalplane any with the kind of datum level B.And coordinate system configuration part 16 is based on the kind of datum level A and the kind of datum level B, determine among the datum level A about, about and before and after direction, so can define the direction at anatomical position neatly according to operator's judgement.
More than, embodiments of the invention are illustrated, but the present invention can be implemented by various embodiment except the above embodiments.
For example, in the above-described embodiments, the situation of setting the position coordinate system based on operator's anatomical knowledge is illustrated, but also can automatically sets the position coordinate system based on the anatomical features in the image of the measured body of having made a video recording.At this moment, detect shape (profile or length, thickness degree etc.) or the relevant information of direction in the image that coordinate system configuration part 16 bases have carried out making a video recording to subject with the position, determine the direction of axial vane surface, sagittal plane and coronalplane based on detected information, thereby set the position coordinate system.Thus, can alleviate operator's burden.
In addition, in the above-described embodiments, the situation of coordinate system configuration part 16 to each setting position, position coordinate system has been described, but also can be for example for a plurality of images that are stored in the storage part 14, by each measured body or the identical position coordinate system of shooting series setting.Thus, represent direction with same datum, so can utilize these images to diagnose efficiently for a plurality of images of having taken identical measured body or by a plurality of images of identical shooting serial shooting.
In addition, in the above-described embodiments, when setting the position coordinate system by coordinate system configuration part 16, master control part 15 calculates the gradient (angle) for the position coordinate system of patient coordinate system, surpass under the situation of predetermined threshold value in the gradient that calculates, can show warning to display part 12.If enumerate concrete example, for example for head more than the certain angle that can not tilt with respect to axon on the structure of human body (for example 45 degree).Therefore, coordinate system configuration part 16 shows warning the position coordinate system tilts this situation more than certain angle with respect to patient coordinate system under.
A plurality of angles can be set at threshold value respectively in the predetermined threshold value used herein.Thus, for example can be according to the situation of angle change warning etc., carry out with the different warning of each threshold value.
In addition, for chest or abdominal part basically the position coordinate system can not tilt with respect to patient coordinate system, but might produce inclination for intravital internal organs such as hearts.In the above-described embodiments, utilize tested intravital layer image to set datum level, so, also can set inherent coordinate system for being positioned at intravital internal organs etc.
In addition, in the above-described embodiments, the MRI device is illustrated, but the invention is not restricted to this, in tested intravital information that the collection exposure obtains and the x-ray ct device that reconstructs image based on the data of collecting with computer etc., can use too.
In addition, in the above-described embodiments, the situation of utilizing 1 computer has been described, but in above-mentioned each function portion of explanation can decentralized configuration in a plurality of computers.
Claims (25)
1. medical diagnostic imaging apparatus is characterized in that possessing:
Storage part, the medical imaging of storage measured body; And
Preservation portion, with with first coordinate system and second coordinate system between the relevant information of relativeness, attach in medical imaging and preserve by above-mentioned storage portion stores, wherein, the posture of above-mentioned first coordinate system when taking above-mentioned measured body, above-mentioned second coordinate system is different from this first coordinate system.
2. medical diagnostic imaging apparatus as claimed in claim 1 is characterized in that,
Also possess the display part of demonstration by the medical imaging of above-mentioned storage portion stores;
Above-mentioned preservation portion attaches the relevant information of relativeness between second coordinate system of setting with above-mentioned first coordinate system with to the medical imaging that is shown by above-mentioned display part in above-mentioned medical imaging and preserves.
3. medical diagnostic imaging apparatus as claimed in claim 1 is characterized in that,
Above-mentioned preservation portion is based on the anatomical features in the above-mentioned medical imaging, with above-mentioned first coordinate system and above-mentioned second coordinate system between the relevant information of relativeness, attach in above-mentioned medical imaging and preserve.
4. medical diagnostic imaging apparatus as claimed in claim 1 is characterized in that,
A plurality of medical imagings of the above-mentioned measured body of above-mentioned storage portion stores;
Above-mentioned preservation portion is about above-mentioned a plurality of medical imagings, with above-mentioned first coordinate system and concerning each above-mentioned measured body or each shooting series the relevant information of relativeness between all identical second coordinate system, attach in above-mentioned medical imaging and preserve.
5. medical diagnostic imaging apparatus as claimed in claim 1 is characterized in that,
Above-mentioned preservation portion further attaches the information of relevant above-mentioned first coordinate system and the information of relevant above-mentioned second coordinate system respectively in above-mentioned medical imaging and preserves.
6. medical diagnostic imaging apparatus as claimed in claim 5 is characterized in that also possessing:
Display part shows the medical imaging by above-mentioned storage portion stores; And
Control part when showing above-mentioned medical imaging by above-mentioned display part, based on the information of attaching relevant above-mentioned second coordinate system in this medical imaging, shows the directional information of the direction of this medical imaging of expression.
7. medical diagnostic imaging apparatus as claimed in claim 6 is characterized in that,
Also possess selection portion, this selection portion selects to show above-mentioned directional information according to which coordinate system in above-mentioned first coordinate system or above-mentioned second coordinate system;
Above-mentioned control part based on the relevant information of selecting by above-mentioned selection portion of coordinate system, show above-mentioned directional information.
8. medical diagnostic imaging apparatus as claimed in claim 5 is characterized in that,
Also possess the data transport unit, this data transport unit transmits the medical imaging by above-mentioned storage portion stores together with the information of attaching relevant above-mentioned second coordinate system in this medical imaging to image processing apparatus.
9. medical diagnostic imaging apparatus as claimed in claim 1 is characterized in that,
Also possess the coordinate system configuration part, this coordinate system configuration part utilizes the image that shows when the shooting plan that setting is used to take above-mentioned measured body, will be set at above-mentioned second coordinate system with the related coordinate system of the anatomical features of above-mentioned measured body;
Above-mentioned preservation portion attaches the relevant information of relativeness between second coordinate system of setting with above-mentioned first coordinate system with by above-mentioned coordinate system configuration part in above-mentioned medical imaging and preserves.
10. medical diagnostic imaging apparatus as claimed in claim 9 is characterized in that,
Above-mentioned preservation portion further attaches the information of the information of relevant above-mentioned first coordinate system and relevant above-mentioned second coordinate system respectively in above-mentioned medical imaging and preserves.
11. medical diagnostic imaging apparatus as claimed in claim 10 is characterized in that, also possesses:
Display part shows the medical imaging by above-mentioned storage portion stores; And
Control part when showing above-mentioned medical imaging by above-mentioned display part, based on the information of attaching relevant above-mentioned second coordinate system in this medical imaging, shows the directional information of the direction of this medical imaging of expression.
12. medical diagnostic imaging apparatus as claimed in claim 11 is characterized in that, also possesses selection portion, this selection portion selects to show above-mentioned directional information according to which coordinate system in above-mentioned first coordinate system or above-mentioned second coordinate system;
Above-mentioned control part based on the relevant information of selecting by above-mentioned selection portion of coordinate system, show above-mentioned directional information.
13. medical diagnostic imaging apparatus as claimed in claim 10 is characterized in that,
Also possess the data transport unit, this data transport unit transmits the medical imaging by above-mentioned storage portion stores together with the information of attaching relevant above-mentioned second coordinate system in this medical imaging to image processing apparatus.
14. medical diagnostic imaging apparatus as claimed in claim 1 is characterized in that,
Also possesses the coordinate system configuration part, this coordinate system configuration part based on the relevant information of datum level to the image of the oblique section of taking above-mentioned measured body or the image setting before this image, just taken, will be set at above-mentioned second coordinate system with the related coordinate system of the anatomical features of above-mentioned measured body;
Above-mentioned preservation portion attaches the relevant information of relativeness between second coordinate system of setting with above-mentioned first coordinate system with by above-mentioned coordinate system configuration part in above-mentioned medical imaging and preserves.
15. medical diagnostic imaging apparatus as claimed in claim 14 is characterized in that,
Above-mentioned preservation portion further attaches the information of the information of relevant above-mentioned first coordinate system and relevant above-mentioned second coordinate system respectively in above-mentioned medical imaging and preserves.
16. medical diagnostic imaging apparatus as claimed in claim 15 is characterized in that, also possesses:
Display part shows the medical imaging by above-mentioned storage portion stores; And
Control part when showing above-mentioned medical imaging by above-mentioned display part, based on the information of attaching relevant above-mentioned second coordinate system in this medical imaging, shows the directional information of the direction of this medical imaging of expression.
17. medical diagnostic imaging apparatus as claimed in claim 16 is characterized in that,
Also possess selection portion, this selection portion selects to show above-mentioned directional information according to which coordinate system in above-mentioned first coordinate system or above-mentioned second coordinate system;
Above-mentioned control part based on the relevant information of selecting by above-mentioned selection portion of coordinate system, show above-mentioned directional information.
18. medical diagnostic imaging apparatus as claimed in claim 15 is characterized in that,
Also possess the data transport unit, this data transport unit transmits the medical imaging by above-mentioned storage portion stores together with the information of attaching relevant above-mentioned second coordinate system in this medical imaging to image processing apparatus.
19. medical diagnostic imaging apparatus as claimed in claim 1 is characterized in that, also possesses:
The first datum level specifying part is accepted the appointment of cross section, first position picture made a video recording in the oblique section at the position of above-mentioned measured body from the operator;
The first datum level kind determination portion when having accepted the appointment of cross section, above-mentioned first position picture by the above-mentioned first datum level specifying part, is defined as in axial vane surface, sagittal plane or the coronalplane any with the kind of this cross section, first position picture;
Datum level direction determination portion, determine in the picture of cross section, above-mentioned first position about, about and before and after direction;
The coordinate system configuration part, all directions in cross section, above-mentioned first position picture of determining based on the kind of cross section, above-mentioned first position picture of being determined by the above-mentioned first datum level determination portion with by said reference face direction determination portion are set at above-mentioned second coordinate system with the inherent coordinate system in each position;
Above-mentioned preservation portion attaches the relevant information of relativeness between second coordinate system of setting with above-mentioned first coordinate system with by above-mentioned coordinate system configuration part in above-mentioned medical imaging and preserves.
20. medical diagnostic imaging apparatus as claimed in claim 19 is characterized in that,
Detect the face of the angle minimum that looks like to report to the leadship after accomplishing a task with cross section, above-mentioned first position in axial vane surface, sagittal plane or the coronalplane of the above-mentioned first datum level kind determination portion from the patient coordinate system that position and direction according to above-mentioned measured body define, detected kind is defined as the kind of cross section, above-mentioned first position picture.
21. medical diagnostic imaging apparatus as claimed in claim 19 is characterized in that,
The above-mentioned first datum level kind determination portion is accepted the input of the kind of any the cross section picture axial vane surface, sagittal plane or the coronalplane from the operator, the kind of having accepted the cross section picture of input is defined as the kind of cross section, above-mentioned first position picture.
22. medical diagnostic imaging apparatus as claimed in claim 19 is characterized in that, also possesses:
The second datum level specifying part is accepted and the appointment of cross section, above-mentioned first position as cross section, vertical second position picture from the operator; And
The second datum level kind determination portion when having accepted the appointment of cross section, above-mentioned second position picture by the above-mentioned second datum level specifying part, is defined as in axial vane surface, sagittal plane or the coronalplane any with the kind of this cross section, second position picture;
The kind of cross section, second position picture that said reference face direction determination portion is determined based on the kind of cross section, first position picture of being determined by the above-mentioned first datum level kind determination portion with by the above-mentioned second datum level kind determination portion, determine in the picture of cross section, above-mentioned first position about, about and before and after direction.
23. medical diagnostic imaging apparatus as claimed in claim 22 is characterized in that,
The above-mentioned second datum level kind determination portion shows the kind of remaining two cross section pictures that the kind of the cross section picture that will be from axial vane surface, sagittal plane or coronalplane be determined as the kind of cross section, above-mentioned first position picture is removed, when any of the kind apoplexy due to endogenous wind of having selected two shown cross section pictures by the operator, the kind of selected cross section picture is defined as the kind of cross section, above-mentioned second position picture.
24. a medical image processing method is characterized in that,
The medical imaging of storage measured body;
With with first coordinate system and second coordinate system between the relevant information of relativeness, attach in medical imaging and preserve by above-mentioned storage portion stores, wherein, the posture of above-mentioned first coordinate system when taking above-mentioned measured body, above-mentioned second coordinate system is different from this first coordinate system.
25. a computer program, the recording medium with the embodied on computer readable that comprises a plurality of orders that can carry out by computer, be used to handle medical imaging, above-mentioned a plurality of orders are carried out the aforementioned calculation machine:
The medical imaging of storage measured body;
With with first coordinate system and second coordinate system between the relevant information of relativeness, attach in medical imaging and preserve by above-mentioned storage portion stores, wherein, the posture of above-mentioned first coordinate system when taking above-mentioned measured body, above-mentioned second coordinate system is different from this first coordinate system.
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| JP2008206962A (en) | 2008-09-11 |
| JP5231791B2 (en) | 2013-07-10 |
| CN101332085B (en) | 2012-11-21 |
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Effective date of registration: 20160810 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. |