CN101332093A - Medical-diagnosis assisting apparatus, medical-diagnosis assisting method, and radiodiagnosis apparatus - Google Patents
Medical-diagnosis assisting apparatus, medical-diagnosis assisting method, and radiodiagnosis apparatus Download PDFInfo
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Abstract
A medical-diagnosis assisting apparatus and a radiodiagnosis apparatus that include a simulation function prior to an examination/treatment, and a guide function during an examination/treatment are provided. Specifically, an extracting unit that extracts image data of a blood vessel portion to be an observation target from three-dimensional image data acquired by imaging a subject, a display unit that can display a three-dimensional image of the extracted blood vessel portion, a display-direction setting unit that displays the three-dimensional image of the extracted blood vessel portion on a display unit at a display angle specified by a user, and a simulation-image creating unit that simulates a course of a catheter when the catheter is to be inserted into the extracted blood vessel portion; and overlays a maker that indicates a position and a moving direction of the catheter on the three-dimensional image of the blood vessel portion are included.
Description
The reference of related application
The application enjoys the benefit of priority of Japanese patent application No. 2007-162673 that was applied on June 20th, 2007 and the Japanese patent application No. 2008-102782 that was applied on April 10th, 2008, and the full content of this Japanese patent application will be cited in this application.
Invention field
The present invention relates to a kind of medical-diagnosis auxiliary device and medical-diagnosis householder method, in medical-diagnosis, when particularly in tested having a medical check-up, inserting conduit (catheter) and carrying out inspection, the treatment of various diseases, display simulation (simulation) image or guiding (guide) image come auxiliary examination person, and safety is improved.In addition, also relate to X ray CT device, the X ray causing circulatory diagnostic equipment isoradial diagnostic equipment of using the medical-diagnosis auxiliary device.
Background technology
In the past, in the medical system that uses X ray CT device, the X ray causing circulatory diagnostic equipment etc., usually implement to utilize the diagnostic imaging of computer, on one side and diagnose with reference to the view data of taking after tested the having a medical check-up on one side, inspection, treatment auxiliary perhaps implemented to the examiner.
For example, in the diagnosis of ischemic heart disease, generally implement to compare the inspection or the treatment of the low use conduit of invasive with surgical operation.In catheterization/treatment, for example in tested coronary artery of having a medical check-up, insert conduit and inject contrast agent, have an X-rayed pictures Yi Bian watch, Yi Bian retrieve pathological changes portion (narrow positions of blood vessel etc.) by coronary artery 2 dimensions that this tested irradiation X ray of having a medical check-up is obtained.
Then, to the pathological changes portion that retrieves, implement the treatment that placing rack (stent) is expanded narrow positions.Support is used for inserting endovascular narrow positions, and keeps blood vessel diameter by using the conduit of being with air bag (balloon) that support is expanded.In addition, when above-mentioned inspection is retrieved except pathological changes and when treatment, also affirmation process or carry out when confirming lesion growth after treatment will be implemented several generally speaking.
But, although catheterization/treatment it is generally acknowledged that to compare invasive low with surgical operation, place the former of (dilation procedure) thereby complication takes place because of conduit operation or support sometimes, so people's expectation reduces slightly and checks number of times.
In addition, while though shine X ray by injecting contrast agent in the inspection/treatment, obtain 2 dimension perspective pictures, when watching this perspective picture, diagnose, but the difference according to irradiating angle can not get enough information sometimes, all needs to change direction of illumination at every turn and has an X-rayed again.Therefore, the review time prolongs, because of the burden to patient's (tested having a medical check-up) that contrast agent injects and x-ray bombardment causes also increases to some extent.
In addition, take explicitly, in X ray CT device, from 3D volume (volume) image, only extract the vessel extraction algorithm record coronarius document below as the radiography angiosomes with the blood vessel that utilizes contrast agent to throw in.
O.Wink，W.J.Niessen，M.A.Viergever，“Fast?Delineation?andVisualization?of?Vessels?in?3-D?Angiographic?Images”，IEEE?Trans.Med.Imaging，Vol.19，No.4，p.337-346，Apr.，2000.
In the past, catheterization/treatment was because sometimes because of the former of conduit operation or support placement (dilation procedure) thereby generation complication, checked number of times so people's expectation reduces slightly.In addition, though in the inspection/treatment when injecting contrast agent, the irradiation X ray is obtained 2 dimension perspective pictures, but the difference according to angle can not get enough information sometimes, all need to change direction of illumination has an X-rayed at every turn again, therefore the review time prolongs, and patient's's (tested having a medical check-up) burden is increased to some extent.
Summary of the invention
The related medical-diagnosis auxiliary device of a mode of the present invention possesses: extraction unit, from taking the tested 3 d image data of having a medical check-up and obtaining, extract view data as the blood vessel portion of the object of observation; Display part can show the drawing image of the blood vessel portion that is extracted by said extracted portion; The display direction configuration part is shown in the drawing image of above extracted blood vessel portion on the above-mentioned display part with the specified angles of display of user; And the analog image generating unit, advancing of above-mentioned conduit simulated when having inserted conduit in the blood vessel portion that is extracted by said extracted portion, the labelling of the position of the above-mentioned conduit of expression and direct of travel is overlapped on the drawing image of above-mentioned blood vessel portion.
In addition, the related Radiodiagnostic apparatus of another way of the present invention possesses: the projecting image data generating unit generates tested perspective image data of having a medical check-up by the radiodiagnosis device; Extraction unit obtains by X ray CT device or magnetic resonance diagnosing apparatus and takes the above-mentioned tested 3 d image data of having a medical check-up and obtaining, and extracts the view data as the blood vessel portion of the object of observation; The angles of display of the drawing image of the blood vessel portion that is extracted by said extracted portion is set in the display direction configuration part according to user's appointment; And display part, the fluoroscopy images of the above-mentioned blood vessel portion that generated by the drawing image of the blood vessel portion of the specified angles of display of above-mentioned user with by above-mentioned projecting image data generating unit can be shown together.
In addition, the related medical-diagnosis householder method of another mode of the present invention comprises following step: from taking the tested 3 d image data fetch that the obtains step as the view data of the blood vessel portion of the object of observation of having a medical check-up; Advancing of above-mentioned conduit simulated when having inserted conduit in above extracted blood vessel portion, makes the step of the labelling of the position of the above-mentioned conduit of expression and direct of travel; And the 3 d image of above extracted blood vessel portion is shown on the display part with the specified angles of display of user, and on the 3 d image of above-mentioned blood vessel portion the step of the above-mentioned labelling of overlapping demonstration.
Description of drawings
Fig. 1 is the structure chart that the medical system of medical-diagnosis auxiliary device of the present invention is used in expression.
Fig. 2 is the block diagram of expression as X ray CT device one example of radiodiagnosis device of the present invention.
Fig. 3 is the block diagram of expression as the X ray causing circulatory diagnostic equipment one example of Radiodiagnostic apparatus of the present invention.
Fig. 4 is the block diagram of an embodiment of expression medical-diagnosis auxiliary device of the present invention.
Fig. 5 is the flow chart of the same embodiment action of explanation.
Fig. 6 is the key diagram of the related parameter setting of the same embodiment of expression with the GUI picture.
Fig. 7 is that related catheter position of the same embodiment of explanation and direction are upgraded the key diagram of judging.
Fig. 8 is that the related segment data (segment data) of the same embodiment of explanation is made and expansible key diagram.
Fig. 9 is the key diagram of the analog image in the related display part of the same embodiment of expression.
Figure 10 is the key diagram of diagrammatic illustration as the X ray causing circulatory diagnostic equipment action of Radiodiagnostic apparatus of the present invention.
Figure 11 is the flow chart of other embodiment actions of explanation Radiodiagnostic apparatus of the present invention.
Figure 12 is the key diagram of the navigational figure on the related display part of expression the present invention the 2nd embodiment.
Figure 13 is the block diagram of the related medical-diagnosis auxiliary device structure of expression the present invention the 3rd embodiment.
Figure 14 makes because of 1 contrast agent injects describing of causing to change and electrocardiographic wave and the corresponding accompanying drawing that shows of crown tremulous pulse change in flow.
Figure 15 is the key diagram of the related parameter setting of expression the 3rd embodiment with the GUI picture.
Figure 16 is the accompanying drawing that expression is set the beginning/end position of full-time phase images data.
Figure 17 is the flow chart of the related medical-diagnosis auxiliary device action of explanation the 3rd embodiment.
The specific embodiment
Below, for an embodiment of the invention, be elaborated with reference to accompanying drawing.
[embodiment 1]
Fig. 1 represents to use the system construction drawing of the medical system of medical-diagnosis auxiliary device of the present invention.The medical system of Fig. 1 has mode (modality) such as X ray CT device 100, the X ray causing circulatory diagnostic equipment 200 as Radiodiagnostic apparatus.These mode are connected with network N W, are connecting to take care of the medical image information medical image server 300 of (comprising view data and incidental information) on this network N W.Moreover, on network N W, connecting image viewing terminal (viewer (viewer)) 400 and input/output terminal 500 etc.
The X ray CT device 100 and the X ray causing circulatory diagnostic equipment 200 are used for taking tested having a medical check-up, and generate view data.The view data keeping is in medical image server 300.In addition, image viewing terminal 400 is used for obtaining view data and the patient information taken care of in the medical image server 300 and handles, and shows various information.In addition, input/output terminal 500 is a kind of PC (Personal Computer), be used for each device on the network N W is logined (login), and the input and output of implementation information.
In the system of Fig. 1, the doctor utilizes input/output terminal 500 for example to send the instruction (order) of radiographic test, and the technician implements to check according to the instruction operation X ray CT device 100 or the X ray causing circulatory diagnostic equipment 200.The medical image data storage that the mode of X ray CT device 100 grades photographs is in medical image server 300.
In addition, in medical view data, the incidental information of additional patient ID, patient's name, age, sex and check point etc. is stored in the medical view data 300, can carry out various retrievals according to incidental information.Moreover image viewing terminal 400 is for example according to the making processing of medical image list, patient tabulation or user's (doctor, technician, operator (operator) etc.) request, and the various information of view data etc. are shown on the display part.In addition, also possess analog functuion and guiding function, the user is checked, assists the pictorial display of usefulness when treating on display part.
Fig. 2 is the structure chart of expression as 100 1 embodiments of X ray CT device of Radiodiagnostic apparatus.In Fig. 2, X ray CT device 100 has pallet (gantry) 11, and swivel becket (ring) 12 is set in this pallet 11, rotates by not shown rotating mechanism.In swivel becket 12, the X-ray tube 13 that the tested P that haves a medical check-up of institute's mounting in the available field of view zone is taken place X ray is installed.
In addition, dispose radiation detector 14 mutually opposed to each other, the core opening of swivel becket 12, the tested P that haves a medical check-up of institute's mounting on the top board 15 of this insertion examinating couch with X-ray tube 13.The X ray that sees through behind the tested P of having a medical check-up detects and is transformed to the signal of telecommunication by radiation detector 14, is amplified by data collection portion (below, be called DAS) 16, is transformed to numerical data.Also have, the part that comprises X-ray tube 13 and radiation detector 14 constitutes photography portion.
Numerical data (data for projection) from DAS16 is transferred to computer system 20 by data transmission device 17.In addition, on pallet 11, pallet drive division 18 and slip ring (slip ring) 19 is set.
On bus line 201, connecting systems control division 22, input part 23, data store 24, reconstruction process portion 25, view data handling part 26 and display part 27 etc.
High voltage generating unit 28 to X-ray tube 13 supply electric power, provides the needed electric power of irradiation (tube voltage, tube current) of X ray by slip ring 19.X-ray tube 13 produces beam (beam) X ray to 2 directions expansions of the section parallel with the axon direction of the tested P that haves a medical check-up (slice) direction and orthogonal with it passage (channel) direction.
In addition, on bus line 201, network interface 29 is set, and X ray CT device 100 can be connected with network N W (Fig. 1), and view data that is photographed by X ray CT device 100 and the image data storage after the reconstruction process are in medical image server 300.
Adopt X ray CT device 100, can carry out volume scan (volume scan) (3D scanning), rebuild, obtain 3D (3 dimension) image in this scope by reconstruction process portion 25 by setting sweep limits.
In addition, adopting X ray CT device 100, is purpose with organs such as observation blood vessels, to making a video recording behind the subject input contrast agent sometimes.In the photography of the blood vessel of throwing in based on contrast agent, the X ray CT view data of radiography blood vessel is rebuilt, and makes the 3D rendering data according to the X ray CT view data.
As the manufacture method of 3D rendering data, the minima sciagraphy (Minimum Intensity Projection), the summation averaging sciagraphy (X-ray Projection) that carry out peaked maximum sciagraphy in projection process and the Display projector path (MIP:Maximum Intensity Projection) or projection minima by direction are arbitrarily for example arranged.
In the observation of radiography blood vessel, the 3D rendering of producing by MIP (MIP image) is frequently used.In addition, use pixel value (CT value) and opacity (opacity) to rebuild that relief image makes it visual VR method (Volume Rendering) and SVR method (Shaded VolumeRendering) is also widely-used.The SVR method is suitable for dynamic observing, and for example can show the dynamic image of cardiac wall motion with the form of band image.
Fig. 3 is the structure chart of expression as 200 1 embodiments of the X ray causing circulatory diagnostic equipment of Radiodiagnostic apparatus of the present invention.In Fig. 3, the X ray causing circulatory diagnostic equipment 200 possesses: X ray generating unit 30 is used for X ray is taken place the tested P of having a medical check-up; X ray test section 40 detects through the X ray behind the tested P that haves a medical check-up with 2 forms of tieing up, and generates the X ray data for projection according to testing result.
X ray generating unit 30 possesses: x-ray bombardment portion has X-ray tube 31 and X ray limiter 32; The high voltage generating unit has high voltage control part 33 and high-voltage generator 34.X-ray tube 31 is vacuum tubes that X ray takes place, and utilizes high voltage that the electronics that radiates from negative electrode (filament (filament)) is quickened, and collides with tungsten (tungsten) anode, and X ray takes place.
X ray test section 40 possesses: area detector 41; Charge voltage changer 42, the charge-voltage converting that will be read from area detector 41 is a voltage; A/D changer 43 is a digital signal with the output transform of charge voltage changer 42; Parallel serial (parallel serial) changer 44 will be transformed to clock signal from the X ray data for projection of area detector 21 after with row (line) unit institute's parallel read-out and digital conversion.
X ray generating unit 30 and X ray test section 40 remain in the arm (arm) (C type arm) 50, and arm 50 for example can move to the axon direction of the tested P of having a medical check-up, can also rotate around the tested P that haves a medical check-up in addition.Also have, the part that comprises X ray generating unit 30 and X ray test section 40 constitutes photography portion.
In addition, the X ray causing circulatory diagnostic equipment 200 possesses portion of travel mechanism 60.Portion of travel mechanism 60 has restriction mobile control division 61 and mechanism controls portion 62, restriction mobile control division 61 carries out the mobile control of adjusting vane in the X ray limiter 32 etc., and mechanism controls portion 62 carries out the travel mechanism 63 of top board 51 of the tested P that haves a medical check-up of mounting and the mobile control of camera chain travel mechanism 64.
Moreover the X ray causing circulatory diagnostic equipment 200 possesses view data and generates storage part 52, input part 53, systems control division 54 and monitor 55.View data generates storage part 52 according to the X ray data for projection from parallel-to-serial converter 44, carries out the generation and the preservation of perspective image data, will generate the perspective image data that is generated in the storage part 52 in this view data and be shown on the monitor 55.
Connect network interface 57 on bus line 56, the X ray causing circulatory diagnostic equipment 200 can be connected with network N W (1), and the view data that is photographed by the X ray causing circulatory diagnostic equipment 200 can be stored in the medical image server 300.
Below, the 26S Proteasome Structure and Function for major part of the present invention describes.Fig. 4 is the block diagram that expression possesses the medical-diagnosis auxiliary device 70 of analog functuion.Medical-diagnosis auxiliary device 70 for example is arranged in the image viewing terminal 400, is used for carrying out catheterization, the preceding simulation of treatment.
In Fig. 4, the 71st, the coronary artery extraction unit is read in 3 dimension (3D) view data of being preserved in the storage device 81, and extracts coronary artery (LCA: left coronary artery, RCA: right coronary artery) according to the CT value of this view data.Storage device 81 is used for preserving the 3 d image data by after X ray CT device 100 collections, the reconstruction, also can be the medical image server 300 of Fig. 1.
Connect coronary artery centrage calculating part 72 on coronary artery extraction unit 71, coronary artery centrage calculating part 72 calculates by coronary artery extraction unit 71 centrage coronarius that extracts.In addition, coronary artery centrage calculating part 72 is connected in the catheter position management department 73, is connecting catheter position/direction calculating portion 74 in this catheter position management department 73, conduit moves judegment part 75.
Catheter position management department 73 determines the direction that current catheter position and conduit should be advanced according to moving the information that judegment part 75 is provided from input part 82, coronary artery centrage calculating part 72, catheter position/direction calculating portion 74 and conduit.Input part 82 for example has mouse or keyboard, is operated by user (doctor, technician etc.).In the accompanying drawings, express example with mouse 821.
Catheter position management department 73 is when the update request that has from the catheter position/direction of input part 82, and conductive pipe moves judegment part 75 discriminant information is provided, from conduit move judegment part 75 obtain catheter position/direction can updated information.
In addition, catheter position management department 73 is when being moved judegment part 75 and judge catheter position/direction and can upgrade by conduit, perhaps when the original state that catheter position/direction is not all set for 1 time, computing information is provided for catheter position/direction calculating portion 74, obtains the information of current catheter position/direction from catheter position/direction calculating portion 74.
The position and the direction of conduit calculated according to the information that is provided from catheter position management department 73 by catheter position/direction calculating portion 74.In addition, can conduit moves judegment part 75 according to the information that is provided from catheter position management department 73, differentiate catheter position/direction and upgrade (moving), and just can conduit advance.
Moreover catheter position management department 73 is connected in coverage diagram (overlay) preparing department 76, and coverage diagram preparing department 76 makes the overlay image that is shown on the coronary artery 3 d image.As 3 d image, for example use the image that obtains by IP (Intensity Projection) or SVR (Shaded Volume Rendering), to make arrow (labelling) image of expression catheter position and direction as overlay image.The data of these 3 d images and overlay image offer display part 83 and show.
Like this, coronary artery centrage calculating part 72, catheter position management department 73, catheter position/direction calculating portion 74, conduit moves judegment part 75 and coverage diagram preparing department 76 just constitutes the analog image generating unit.
In addition, in medical-diagnosis auxiliary device 70, be provided with sectional making portion 77 and pictorial display direction setting portion 78.The information that sectional making portion 77 bases are provided from input part 82 reaches the information from catheter position management department 73, makes the segment data (segment data) that is shown on the coronary artery 3 d image.Pictorial display direction setting portion 78 control display parts 83, the angles of display of conversion coronary artery 3 d image.
By medical-diagnosis auxiliary device 70, can utilize the view data that photographs by X ray CT device 100 in advance, the user is shown from the arbitrarily angled coronary artery 3 d image of seeing.In addition, also before checking, treating, carry out the insertion simulation of conduit.
Below, with reference to the flow chart of Fig. 5, the action of medical-diagnosis auxiliary device 70 is described.Fig. 5 is that expression is from X ray CT image data extraction coronary artery and the utilization accompanying drawing that image coronarius carries out the mimic process of catheterization that extracts.
Analog image is used for according to the situation of advancing of endovascular situation demonstration conduit, while make the leading section of conduit rotate the pathological changes portion (for example, the narrow positions of blood vessel) that advances to, arrives pathological changes portion by moment display segment (support).
In the step S1 of Fig. 5, at first, in X ray CT device 100, carry out the scanning of following contrast agent to throw in order to collect tested radiography blood-vessel image of having a medical check-up, rebuild tested 3 d image data of having a medical check-up.3 d image data after the reconstruction are stored in the storage device 81.
In step S2, read the 3 d image data of being preserved in the storage device 81, on display part 83, show 3 d image (3D projected image and 3D volume images).As the 3D projected image, can change maximum sciagraphy (Maximum Intensity Projection), minima sciagraphy (Minimum Intensity Projection) or summation averaging sciagraphy (X-ray Projection), show.These sciagraphies are generically and collectively referred to as IP (Intensity Projection).On the other hand, as the 3D volume images, the volume that shows the band image is drawn (volume rendering) image (SVR:Shaded Volume Rendering).
On shown 3D projected image and the 3D volume images and the radiography blood vessel comprise the zone that should delete in the simulation together.In addition, the 3D projected image will show to be presented at zone on the 3D volume images as projected image.Therefore, to the segment processing of 3D volume images execution area extraction etc. the time, must also to upgrade the demonstration of 3D projected image.
Among the step S3 below,, only extract coronary artery (LCA: left coronary artery, RCA: right coronary artery) on the 3D volume images as the radiography angiosomes according to the CT value of view data.Method that the vessel extraction algorithm for example will utilize in the non-patent literature 1 to be recorded and narrated etc.
In step S4, set and simulate parameters needed.GUI (graphic user interface (graphical user the interface)) example of each parameter is set in Fig. 6 (a) expression.GUI is used for display-operation picture on picture, carries out various parameter settings, as the parameter that will set for example shown in the left side picture of Fig. 6 (a), and (a)～(e) described project below having.
(a) appointment coronarius: specify coronary artery (LCA or RCA) as simulated object.
(b) beginning/end position: specify and carry out mimic scope (starting position and end position).
(c) criterion (contact angle): be the condition when differentiation that can conduit move the time is carried out in simulation, specify the angle between catheter proximal end and the blood vessel.
(d) criterion (catheter position-inwall): be the condition when differentiation that can conduit move the time is carried out in simulation, specify the distance between conduit and blood vessel.
(e) stent length: set the stent length that is positioned in the pathological changes portion (narrow positions).
Then, in step S5, along with (a) middle finger is tailor-made is only to extract specified coronary artery (LCA or RCA) by the coronary artery of simulated object on the 3D volume images for project at step S4.
In step S6, in step S4 (project b), in the specified simulation context, extract the centrage coronarius that extracts.The mobile alignment of conduit when the centrage that is extracted is simulation.Also have, the centrage extraction algorithm for example will utilize the method for being recorded and narrated in the non-patent literature 1.
In step S7, the specified simulation context (, having only the starting position here) in step S4 (project b) of identical utilization with step S6 is set the position and the direction of initial conduit.
Fig. 7 (a) is the accompanying drawing of expression endovascular catheter position and direction, and so-called initial catheter position refers to, and specified starting position o in step S4 (project b) is positioned on the centrage (dotted line).So-called duct direction refers to, and is basic point with catheter position o, by the vector q shown in certain certain angle θ 1, means catheter proximal end portion from center line vector (vector) p.
That is to say, go up decision catheter position o according to input information at centrage (dotted line) here.Then, ask for from catheter position by straight line away from the some p on several centimetres the centrage, the line vector p of computer center.Some p on the centrage retrieves by the direction of simulation end position according to catheter position o.
In addition, also calculating with catheter position o is the vector q of basic point from center line vector p cant angle theta 1.As a result, with the vector q that calculates as catheter proximal end portion.For angle θ 1, then can change arbitrarily in mimic environment set etc.
If set catheter position/direction, then become among the step S8 below " waiting state ", wait for new input (catheter position/direction update request) from the user.
If in step S8, update request has been arranged, then in step S9, carry out the judgement that to upgrade according to input information from input part 82 mouses.The condition of this judgement has 2, uses the value that sets at step S4 (project c, project d) to carry out.
At first, carrying out the contact angle that sets in project c judges.Contact angle is shown in Fig. 7 (b), and the expression vector q of catheter proximal end and the formed angle θ 2 of tangent line vector r of coronary artery inwall when the angle θ 2 that forms at 2 vectors compares with the angle that sets and is acute angle, judge conduit and can not move.If because then there is the probability by the front end injured blood vessel inwall of conduit in acute angle, so conduit can not move.
That is to say, ask for here from position that catheter proximal end portion and blood vessel join, calculate inwall vector theta 2 away from the some S on several millimeters the inwall.Some S on the above-mentioned inwall retrieves by the direction of simulation end position from the position that catheter proximal end portion and inwall join.
Compare with specified angle when being acute angle at the angle θ 2 that calculates, being judged as catheter position/direction can not upgrade.For distance, the angle θ 2 of above-mentioned some S on from catheter proximal end portion and inwall position contacting to inwall, can be in change arbitrarily in the mimic environment set etc.
Then, carry out the judgement of " catheter position-inwall " that in project d, set.Shown in Fig. 7 (c), " catheter position-inwall " is although be the obtuse angle at the catheter proximal end portion vector that sets according to the catheter position o that is positioned on the coronary artery centrage, but the distance before the contact coronary artery inwall is during still than the distance that sets, and being judged as conduit can not move.That is to say, stop and go to a flow path direction from the blood vessel master stream that conduit will be advanced.
That is to say, calculate here from catheter position o to contact blood vessel distance before.Its result be calculate to the distance of inwall than specified length long time, judge catheter position/direction and can not upgrade., set because use the sort of branch point of Fig. 7 (c) to judge as the specified value of catheter position-inwall so preferably consider branch boundaries line T when branch (not inwall).
When meeting above-mentioned 2 conditions some, the update request of catheter position goes out of use, and returns step S8.
Just carrying out when the judgment processing among the step S9 only is " catheter position update request " at the input information from input part 82, is being that " duct direction update request " will unconditionally be upgraded.
In addition, roller 822 can be indicated the direction of catheter proximal end portion, just is that axle makes catheter proximal end direction rotation left with the centrage to rotating upward by making roller 822, just is that axle makes catheter proximal end rotate to right with the centrage by making it the downward direction rotation.
Also have, be not limited to mouse, also can use GUI etc., this GUI can specify amount of movement and angle of rotation by the user.
When " catheter position/direction can be upgraded " sets up in step S9, in step S10,, set the catheter position/direction after upgrading according to current catheter position/directional information and input information.
If in step S10, upgraded catheter position/direction, then in step S11, judge whether catheter position has arrived the end position that sets in the project b of step S4.When having arrived end position, after this do not accept the update request of catheter position/direction, enter step S12.When the no show end position, return step S8, wait for new update request.
In step S12, suppose because of catheter position has arrived end position and go up placing rack in pathological changes portion (narrow positions of blood vessel), use the stent length that in the project e of step S4, sets to make segment data X.
The making of segment data X is carried out shown in Fig. 8 (a).That is to say that the length of the segment data that will make is equivalent to the stent length that sets in the project e of step S4.In addition, production location is the position that links 2 points on the centrage with straight line.
Shown in Fig. 8 (a), 2 points on the centrage be from the simulation end position to than its nearly several centimetres some U and from this away from the some V on the centrage of the length that among project e, sets.Distance from this U to V is by the specified stent length of user.On with the position of straight line point of contact U and V, make segment data X.As a result, regard the segment data of producing as the preceding support that expands, implement support and place.
Then, suppose support to be expanded treat pathological changes portion (narrow positions), and, the segment data X that produces is expanded shown in Fig. 8 (b) according to user's expansion request.Segment data X when link making segment data with straight line employed 2 some U-V, expand with the direction of this straight line square crossing.
Its result is, segment data X is by showing with blood vessel diameter thickness about equally shown in Fig. 8 (c), and its expansion that is shown as by support obtains medical treatment pathological changes portion (narrow positions).
In addition, relevant input information though supposed by the GUI input request of expanding, is not defined as GUI, and button click that also can be by mouse 821 etc. is imported.
Also have, relevant from the simulation end position to the distance of a U and CT value, the expansion rate of segment data X, can in mimic environment set etc., change arbitrarily.Particularly, for the CT value, because depend on collection condition of image etc., so concrete numerical value is not is not recorded and narrated, but the present invention is because be that the coronary artery after extracting is carried out, thus need be set at more than the CT value coronarius, and make transparency become opaque to this CT value.
Below, the establishing method for simulation context (beginning/end) describes.In the step S4 of Fig. 5, be illustrated for the simulation parameters needed, will be elaborated for the establishing method of simulation context (beginning/end) here.
If extract specified coronary artery (LCA or RCA), then on the 3D volume images, show beginning/end position coverage diagram from the 3D volume images.This begins/the end position coverage diagram shown in Fig. 8 (a), show with centrage coronarius (dotted line) and cursor (cursor) Z (* labelling) that is positioned on this centrage.
When setting simulation context, the user drags cursor Z shown on the 3D rendering (Fig. 8 (a)) by mouse 821, moves to the mimic position of beginning.Then, if selected the start button of Fig. 6 (a), the position that then demonstrates cursor Z is set as the simulation starting position.
Equally, Z moves to the position of end simulation by the mouse drag cursor, selects the conclusion button of Fig. 6 (a).Its result is that the position that demonstrates cursor Z is set as the simulation end position.Cursor Z then becomes non-demonstration if begin and the setting of end position is finished.In addition, by selecting the reset button of Fig. 6 (a), can the beginning/end position that set is discarded.
Below, the covering demonstration for catheter position describes.
If the setting of simulation context (beginning/end) finishes, then as shown in Figure 9, the coverage diagram Y of expression catheter position and direction is shown on 3D projected image and the 3D volume images (SVR).Also have, Fig. 9 (a) expression 3D projected image, Fig. 9 (b) expression is as the SVR image of 3D volume images.
The leading section of conduit during shown overlay image Y sees and conducts a survey/treat, according to input information from the user, on one side at every turn all on one side the update displayed position/orientation show.When overlay image Y arrives simulation end position (pathological changes portion) at catheter position, replace the demonstration of labelling (arrow), the image X of display segment (Fig. 8 (c)).
Also having, as the demonstration example of overlay image Y, though used the arrowhead form labelling of expression catheter position and direction, so long as can show the shape of catheter position and direction, also can be Any shape.
Below, the display direction for the 3D volume images describes.In the present invention, can when showing the 3D volume images, prepare a plurality of angles of display patterns in advance, show the 3D rendering of seeing from angle direction arbitrarily.Angles of display pattern (pattern) means the 3D rendering when a plurality of angle directions are seen tested having a medical check-up, and can obtain the coronary artery 3D rendering of seeing from a plurality of angle directions by carrying out reconstruction process by X ray CT device 100.
Above-mentioned angles of display can provide the needed information of reproduction of actual catheter inspection/treatment with carried out the general irradiating angle of coronary artery when taking by the X ray causing circulatory diagnostic equipment 200 identical.
GUI when the right picture of Fig. 6 (a) is used for representing to specify the angles of display pattern, framing number word 1～8 express tested shooting direction of having a medical check-up when specifying coronary artery (LCA).For example, when on numeral 1 part, putting cursor, can select tested 3D rendering when having a medical check-up from the front illuminated X ray.
Figure 10 is the diagrammatic illustration figure of the x-ray bombardment direction in the explanation X ray causing circulatory diagnostic equipment 200.Figure 10 (a) is an accompanying drawing of seeing the X ray causing circulatory diagnostic equipment 200 from tested side of having a medical check-up, and Figure 10 (b) is the accompanying drawing of seeing from the tested head side that haves a medical check-up.
In Figure 10, X ray generating unit 30 and X ray test section 40 are installed on arm 50, and X ray generating unit 30 is mutually opposed across examinating couch 51 with X ray test section 40, and arm 50 can rotate to the tested Cranial that haves a medical check-up (head) direction and Caudal (foot) direction shown in Figure 10 (a).In addition, shown in Figure 10 (b), can also tested have a medical check-up around by about (L-R) direction rotate.
For example, if with X-ray detector 40 in the center of Cranial direction and Caudal direction and be benchmark during centre position at L-R, consider that the position on this datum line A is equivalent to the point of Fig. 6 (a) numeral 1 exactly.In addition, the numeral 2 of Fig. 6 (a) express to datum line A to the right (R) rotate angles of display behind 30 degree.
Equally, numeral 3, numeral 4 and numeral 5 are expressed respectively, and (R) rotates 30 degree and the angles of display after the Caudal direction is rotated 30 degree, the angles of display after the Caudal direction is rotated 30 degree and the angles of display after the Cranial direction is rotated 35～40 degree to the right.Relevant other numeral is also expressed, the angles of display when L-R direction and Cranial-Caudal direction are rotated specified angle.
In addition, the right picture of Fig. 6 (b) is expressed, tested shooting direction of having a medical check-up when specifying coronary artery (RCA).The numeral 9 of Fig. 6 (b) express to datum line A left (L) rotate angles of display behind 50～60 degree, numeral 10 is expressed the angles of display after the Cranial direction is rotated 30～40 degree, numeral 11 is expressed to the right the angles of display after (R) direction is rotated 30 degree.Thereby, by on the right picture of Fig. 6 (a) and (b), select angles of display (numeral 1～11), the 3D rendering of the angle of just can explicit user wishing.
In addition, by selecting the turn knob on Fig. 6 (a) and (b), can also show each angles of display pattern by the direction after rotating+90 ° again.At this moment, by under the state of having selected turn knob, selecting each digital button, just can show by the angle after rotating+90 ° on for example X-axis of screen coordinate system again by after the angular turn 3D volume images of selected numeral.Thereby, can show the overlap condition that the fluoroscopy images can't be from inspection/treatment the time obtains to coronary artery depth direction.
3D rendering angles of display shown in Figure 9 can be specified by the GUI shown on the right picture of Fig. 6 (a) and (b), and according to the difference as the coronary artery (LCA or RCA) of simulated object, assignable angles of display is also different.Also have, as the display frame of reality, Fig. 9 (a) or image (b) and Fig. 6 (a) or GUI (b) are shown on the same picture, and the appointment of angles of display is more or less freely.
Like this, in the 1st embodiment of the present invention, because possess medical-diagnosis auxiliary device 70 shown in Figure 4 in the image viewing terminal 400, so the user can utilize the view data that is photographed by X ray CT device 100 in advance, check, before the treatment and the demonstration of 3D rendering together, carry out the insertion of conduit and simulate.
Also have, owing to possess structure shown in Figure 4 in the X ray CT device 100, thereby the Radiodiagnostic apparatus with analog functuion can be provided.In this case, in the view data handling part 26 of medical-diagnosis auxiliary device 70 load maps 2 shown in Figure 4, storage device 81, input part 82, and display part 83 can be by data store 24, input part 23 and display part 27 dual-purposes of Fig. 2.
[embodiment 2]
The 2nd embodiment of the present invention relates to a kind of Radiodiagnostic apparatus that possesses the guiding function in catheterization/treatment, and has utilized the part of above-mentioned analog functuion.
That is to say, a kind of Radiodiagnostic apparatus is provided, this Radiodiagnostic apparatus possesses medical-diagnosis auxiliary device 70 shown in Figure 4 owing in the X ray causing circulatory diagnostic equipment 200, thereby has guiding function.In this case, the view data of medical-diagnosis auxiliary device 70 shown in Figure 4 and storage device 81 load maps 3 generates in the storage part 52, and input part 82 and display part 83 can be by input part 53 and monitor 55 dual-purposes of Fig. 3.
In the present embodiment, can show the actual perspective picture that obtains by the X ray causing circulatory diagnostic equipment 200, and read in the 3 d image data after collecting in advance and rebuild by X ray CT device 100, show 3 d image coronarius with angles of display arbitrarily according to the CT value of this view data.Navigational figure when 3 d image coronarius becomes the conduit insertion.
In the 2nd embodiment, mainly use coronary artery extraction unit 71 and the pictorial display direction setting portion 78 of Fig. 4.Coronary artery extraction unit 71 read in the storage device to be preserved by the 3 d image data after the X ray CT device 100 collection/reconstructions, extract coronary artery (LCA: left coronary artery according to the CT value of this view data, RCA: right coronary artery), on monitor 55, show 3 d image coronarius (for example, SVR:Shaded Volume Rendering).
In addition, it is set at pictorial display direction setting portion 78, by showing 3 d image coronarius by the specified angles of display of user.In addition, 3 d image coronarius and the perspective picture that obtains by the X ray causing circulatory diagnostic equipment 200 are shown on the display part 83 together.
In view of the above, Yi Bian the user can Yi Bian change its angles of display arbitrarily, carry out catheterization/treatment by watching 3 d image coronarius.In addition, because actual perspective picture also is shown, so can carry out the auxiliary of catheterization/treatment.
Figure 11 is the flow chart of explanation according to the X ray causing circulatory diagnostic equipment 200 actions of the 2nd embodiment.In the step S21 of Figure 11, at first, carry out the scanning of following contrast agent to throw in by X ray CT device 100 in order to collect tested radiography blood-vessel image of having a medical check-up, rebuild tested 3 d image data of having a medical check-up.3 d image data after the reconstruction are stored in the storage device 81.
Then, in step S22, show 3D volume images based on the 3 d image data of being preserved in the storage device 81.The 3D volume images will show the volume drawing image (SVR:ShadedVolume Rendering) of being with image.
On shown 3D volume images and the radiography blood vessel together, comprise the zone that should delete in the simulation.Therefore, in step S23, on the 3D volume images, only extract radiography angiosomes (coronary artery (LCA: left coronary artery, RCA: right coronary artery)) according to the CT value of view data.Relevant coronary artery extraction algorithm will use method that non-patent literature 1 records and narrates etc.
Then, in order to realize guiding function, in step S24, set necessary parameter.Here, appointment is as the coronary artery (LCA or RCA) of introductory object.The appointment of relevant coronary artery (LCA or RCA) will be selected certain project of LAC among the GUI (left picture) of Fig. 6 or RCA.
At last, in step S25, be on the 3D volume images, only to extract specified coronary artery (LCA or RCA) by the coronary artery of guiding function object, show as the navigational figure in catheterization/treatment along with having made to order at step S24 middle finger.
Adopt above-mentioned guiding function, can set the display direction of 3D volume images.For the setting of display direction, then with when simulation the 3D volume images angles of display set identically, utilize the GUI (right picture) of Fig. 6 to carry out (explanation is herein omitted).
Like this, on display part 83, just show perspective picture that obtains by the X ray causing circulatory diagnostic equipment 200 shown in Figure 12 (a) and the coronary artery 3 d image shown in Figure 12 (b) together.
Moreover, also can with when simulation as pathological changes portion (narrow positions) determined position (segment data that is equivalent to Fig. 7 (c)), on the 3D volume images when being shown in guiding function, be used as overlay image.In view of the above, because the position of pathological changes portion is pre-determined, so be easy to grasp the path of inserting conduit.
In addition, this overlay image always is not shown, and can become demonstration/non-demonstration according to user's input information, and for shape, can be can grasp pathological changes portion and not make the obvious shape that reduces of quantity of information that offers the user as guiding function yet.
[embodiment 3]
In embodiment 1, be illustrated for the simulation of using rest image.But actual conduit is operated because heart etc. are being beated, so while will watch the fluoroscopy images of motion to carry out.Thereby, use dynamic image if in simulation, also replace rest image, more real image then can be provided.
In addition, in the conduit operation,, inject contrast agent in order to be easy to watch blood vessel.Thereby, can also provide more real vivid by simulation because of the blood-vessel image that the injection of contrast agent causes changes.Also have, when simulation, also show the MIP image of the radioscopy image when having supposed the conduit operation.Thereby the blood-vessel image that causes by the injection of also simulating on the MIP image because of contrast agent changes, and can provide more real vivid.
Therefore, in present embodiment 3, will describe for the medical-diagnosis auxiliary device that more real image can be provided by the injection of using dynamic image and simulation contrast agent.
At first, describe for present embodiment 3 related medical-diagnosis auxiliary device structures.Figure 13 is the block diagram of the related medical-diagnosis auxiliary device structure of expression present embodiment 3.Also have, the convenience in order to illustrate is enclosed identical symbol for the function portion of playing with each unit same function shown in Figure 4 here, omits its detailed explanation.
But this medical-diagnosis auxiliary device 90 shows the SVR image of phase when a plurality of with the form of film (cinema).Thereby each function portion of this medical-diagnosis auxiliary device 90 view data of phase when a plurality of is that object plays a role.For example, the view data of phase when storage device 81 storage is a plurality of, coronary artery extraction unit 71 are extracted coronary artery when a plurality of during each of phase mutually.
As shown in figure 13, this medical-diagnosis auxiliary device 90 and medical-diagnosis auxiliary device 70 shown in Figure 4 are compared, and also have display control unit 91 and customer interface portion 92.
Display control unit 91 with coronary artery extraction unit 71 from view data extract a plurality of the time phase coronary artery show that with the form of film (dynamic image demonstration) is on display part 83 repeatedly.Here, the view data of phase when a plurality of is used the view data of represent amount of describing to change that causes because of 1 contrast agent injection.Figure 14 makes because of 1 contrast agent injects describing of causing to change and electrocardiographic wave and the corresponding accompanying drawing of representing of crown tremulous pulse change in flow.Display control unit 91 shows with shown in Figure 14 describing repeatedly and changes corresponding dynamic image.
Particularly, this display control unit 91 makes the opacity (0.0～1.0) as one of SVR image displaying condition change corresponding with shown in Figure 14 describing, set mutually during by each, and each the time only go up the coronary artery that extracts from current catheter position to peripheral vessel mutually, show.By the timing (timing) of R1 when having injected contrast agent, according to flow velocity difference coronarius, coronary artery is depicted well by the impetus between R1-R2 in operation, and coronary artery is no longer described fully behind about 3 heartbeats.To describe to change the setting that is used for opacity because of what this contrast agent caused.For example, during phase when supposing that phase data number is 30 when (phase when the time phase data number between R-R is 10), the opacity of (the 1st o'clock phase) was set at minima (0.0) when contrast agent was injected, be set at maximum (1.0) near mutually with the 7th o'clock, be set at minima (0.0) when last mutually.
Like this, display control unit 91 is set opacity by by each the time mutually, each the time only go up the coronary artery that extracts from current catheter position to peripheral vessel mutually, show with the form of film, just can show the image that reflects cardiac motion and the contrast agent injection situation by conduit.
Also have, though maximum is set at 1.0 here, maximum 1.0 is not fixed, can change arbitrarily.In the operation of conduit, inject contrast agent mostly bit by bit, and opacity does not reach maximum under a lot of situation.Because maximum is variable, thereby can show the image that further reflects contrast agent injection situation.
In addition, during the MIP image of this display control unit 91 radioscopy image in demonstration has been supposed to perform the operation, the brightness of phase images data shows with the form of film when changing each.Particularly, the step that makes the user press face is set brightness, according to the brightness that sets by the user (maximum/minimum), and the brightness of phase when display control unit 91 settings are whole.
(1) image of the 1st o'clock phase of demonstration is set brightness (minima).
(2) select minimum brightness button on the parameter setting GUI shown in Figure 15.
(3) show near the 7th o'clock mutually view data, set brightness (maximum).
(4) select high-high brightness button on the parameter setting GUI shown in Figure 15.
Also have, the segmentation that coverage diagram that this display control unit 91 is produced coverage diagram preparing department 76 and sectional making portion 77 produce is shown on the display part 83.In addition, this display control unit 91 is changed angles of display coronarius according to the instruction of display direction configuration part 78.
Customer interface portion 92 is set the simulation parameter according to user's instruction.For example, the length of these customer interface portion 92 setting supports and criterion etc.
In addition, this customer interface portion 92 as shown in figure 16 will be to the mimic beginning/end position of the image setting of full-time phase.Particularly, the user adopts method illustrated in the embodiment 1 to set beginning/end position to the image of the 1st o'clock phase.So, this customer interface portion 92 is passed through according to beginning specified on the view data of the 1st o'clock phase/end position information, differentiate and whether which blood vessel coronarius is set, calculate the distance from the starting position to the end position again, come when whole the view data of phase to set beginning/end position.Also have, the differentiation whether beginning/end position has been set certain blood vessel coronarius can be extracted the details of ramus descendens anterior arteriae coronariae sinistrae (LAD) and LCA (LCX) etc. in advance by when the extraction coronary artery, carries out.
Below, with reference to the flow chart of Figure 17, the action of medical-diagnosis auxiliary device 90 is described.Figure 17 is expression begins catheterization simulation process before from X ray CT image data extraction coronary artery and the utilization image coronarius that extracts a accompanying drawing.
In the step S31 of Figure 17, at first for the form with film shows, in X ray CT device 100, carry out the scanning follow contrast agent to throw in, rebuild the 3 d image data of tested phase when a plurality of of having a medical check-up.Phase 3 d image data are stored in the storage device 81 during a plurality of after the reconstruction.
In step S32, read the 3 d image data of the 1st o'clock phase of being preserved in the storage device 81, on display part 83, show the 3 d image (3D projected image and 3D volume images) of the 1st o'clock phase.Among the step S33 below, according to the CT value of view data, the 3D volume images of phase is extracted the coronary artery as the radiography angiosomes during from each.
In step S34, set and to simulate parameters needed, just as coronary artery (LCA or RCA), beginning/end position, criterion and the stent length etc. of object.Here, relevant beginning/end position user only specifies the 1st o'clock phase, and phase is then by medical-diagnosis auxiliary device 90 automatic settings during for other.
Then, in step S35, be extracted in mutually during by each among the step S34 as the specified coronary artery of simulated object (LCA or RCA).In step S36, in step S34, in the specified simulation context, extract the centrage coronarius that extracts during by each mutually.In step S37, the starting position of phase during according to each is set the position and the direction of initial conduit mutually during by each.Then, the demonstration of beginning film, and become " waiting state ", wait for input (catheter position/direction update request) from the user.
As mentioned above, in present embodiment 3,, thereby can provide more real simulated environment of image because the view data of using phase when a plurality of shows 3 d image coronarius with the form of film.In addition, owing to utilize the opacity of SVR image and the brightness of MIP image, expression changes because of describing of causing of contrast agent, and only describes from the position of conduit to the coronary artery of the peripheral vessel of front, thereby more real simulated environment of image can be provided.Also have, show that by 3D rendering carrying out perspective projection shows, can also obtain more near the sensation in the operation process SVR image and MIP image etc.
Among described in the above the present invention, can be before carrying out catheterization, obtain fully to check (treatment) needed information that by watching analog image or navigational figure, that just can realize checking/treat assists, and can help the raising of safety.In addition, can also seek to check/shortening of treatment time, reduce tested burden of having a medical check-up.
Also have, in the superincumbent explanation although understand the example that extracts the coronary artery image, but also can extract the image of other blood vessel portions, display simulation image or navigational figure.
In addition, further effect and variation can easily be derived by those skilled in the art.Thereby the present invention's mode widely is not defined as above the institute specific detail and the representational embodiment that show, record and narrate.Thereby, can under the prerequisite that does not break away from the total inventive concept spirit or scope that define by claims and equivalent thereof, carry out various changes.
Claims (15)
1, a kind of medical-diagnosis auxiliary device is characterized by,
Possess:
Extraction unit from taking the tested 3 d image data of having a medical check-up and obtaining, is extracted the view data as the blood vessel portion of the object of observation;
Display part can show the drawing image of the blood vessel portion that is extracted by said extracted portion;
The display direction configuration part is shown in the drawing image of above extracted blood vessel portion on the above-mentioned display part with the specified angles of display of user; And
The analog image generating unit, advancing of above-mentioned conduit simulated when having inserted conduit in the blood vessel portion that is extracted by said extracted portion, the labelling of the position of the above-mentioned conduit of expression and direct of travel is overlapped on the drawing image of above-mentioned blood vessel portion.
2, medical-diagnosis auxiliary device as claimed in claim 1 is characterized by:
The shooting angle of above-mentioned angles of display when taking tested having a medical check-up by the radiodiagnosis device is corresponding.
3, medical-diagnosis auxiliary device as claimed in claim 1 is characterized by:
The drawing image that is shown in the above-mentioned blood vessel portion on the above-mentioned display part is X ray projected image or 3D volume images.
4, medical-diagnosis auxiliary device as claimed in claim 2 is characterized by:
The drawing image that is shown in the above-mentioned blood vessel portion on the above-mentioned display part is X ray projected image or 3D volume images.
5, medical-diagnosis auxiliary device as claimed in claim 1 is characterized by:
Take the above-mentioned tested 3 d image data of having a medical check-up and obtaining, form by the data after view data collected in X ray CT device or magnetic resonance diagnosing apparatus is rebuild, comprise the drawing image when different a plurality of angle directions are seen above-mentioned tested having a medical check-up
The drawing image by the above-mentioned blood vessel portion of the specified angles of display of above-mentioned user is selected in above-mentioned display direction configuration part, offers above-mentioned display part.
6, medical-diagnosis auxiliary device as claimed in claim 5 is characterized by:
Above-mentioned different a plurality of angle directions are with corresponding by the shooting angle of radiodiagnosis device when a plurality of shooting directions are taken tested having a medical check-up.
7, medical-diagnosis auxiliary device as claimed in claim 1 is characterized by:
Above-mentioned analog image generating unit possesses:
The centrage calculating part calculates the centrage of the blood vessel that is extracted by said extracted portion;
Catheter position/direction calculating portion calculates position and the direction of conduit in above extracted blood vessel portion;
Can conduit moves judegment part, according to the situation of above-mentioned blood vessel portion, differentiate above-mentioned conduit and advance;
Catheter position management department according to the centrage information that is obtained by above-mentioned centrage calculating part and from user's input information, moves judegment part with above-mentioned catheter position/direction calculating portion and above-mentioned conduit and cooperates, and determines the position of above-mentioned conduit; And
Coverage diagram preparing department according to the information that is obtained by above-mentioned catheter position management department, generates the position of the above-mentioned conduit of expression and the label information of direct of travel.
8, medical-diagnosis auxiliary device as claimed in claim 7 is characterized by:
Above-mentioned analog image generating unit, can carry out the graphic user interface of above-mentioned simulation parameters needed by setting, the contact angle of the distance between the front end of setting above-mentioned conduit by the user at least and above-mentioned blood vessel and the relative above-mentioned blood vessel of front end of above-mentioned conduit, and, differentiate above-mentioned conduit and can advance according to the above-mentioned parameter that sets.
9, medical-diagnosis auxiliary device as claimed in claim 7 is characterized by:
This medical-diagnosis auxiliary device possesses sectional making portion, according to the information that obtains by above-mentioned catheter position management department and from user's input information, when above-mentioned conduit arrived the pathological changes portion of above-mentioned blood vessel portion, this sectional making portion made the segment data of expression support;
Replace above-mentioned labelling, will be shown in based on the doubling of the image of above-mentioned segment data on the drawing image of above-mentioned blood vessel portion.
10, medical-diagnosis auxiliary device as claimed in claim 9 is characterized by:
Above-mentioned sectional making portion can set the length of above-mentioned support according to the input information from the user.
11, medical-diagnosis auxiliary device as claimed in claim 1 is characterized by:
Said extracted portion 3 d image data of phase when a plurality of are extracted the view data as the blood vessel portion of the object of observation respectively,
Above-mentioned display part shows the drawing image of phase when a plurality of with the form of dynamic image,
On each of the drawing image of above-mentioned analog image generating unit phase when a plurality of, overlapping above-mentioned labelling.
12, medical-diagnosis auxiliary device as claimed in claim 11 is characterized by:
This medical-diagnosis auxiliary device possesses contrast agent analog image generating unit, this contrast agent analog image generating unit according to the view data of being extracted by said extracted portion and by above-mentioned analog image generating unit the advancing of mimic conduit, generation has been simulated from the drawing image of the motion of the contrast agent of conduit injection
Above-mentioned display part shows the drawing image that is generated by above-mentioned contrast agent analog image generating unit with the form of dynamic image.
13, a kind of Radiodiagnostic apparatus is characterized by,
Possess:
The projecting image data generating unit generates tested perspective image data of having a medical check-up by the radiodiagnosis device;
Extraction unit obtains by X ray CT device or magnetic resonance diagnosing apparatus and takes the above-mentioned tested 3 d image data of having a medical check-up and obtaining, and extracts the view data as the blood vessel portion of the object of observation;
The angles of display of the drawing image of the blood vessel portion that is extracted by said extracted portion is set in the display direction configuration part according to user's appointment; And
Display part can be shown the fluoroscopy images of the above-mentioned blood vessel portion that generated by the drawing image of the blood vessel portion of the specified angles of display of above-mentioned user with by above-mentioned projecting image data generating unit together.
14, Radiodiagnostic apparatus as claimed in claim 13 is characterized by:
When inserting in the above-mentioned tested blood vessel portion that haves a medical check-up that conduit is checked or when treating, show that the drawing image of above-mentioned blood vessel portion is used as navigational figure.
15, a kind of medical-diagnosis householder method is characterized by,
Comprise following step:
From taking the tested 3 d image data fetch that obtains the step of having a medical check-up as the view data of the blood vessel portion of the object of observation;
Advancing of above-mentioned conduit simulated when having inserted conduit in above extracted blood vessel portion, makes the step of the labelling of the position of the above-mentioned conduit of expression and direct of travel; And
The 3 d image of above extracted blood vessel portion is shown on the display part with the specified angles of display of user, and on the 3 d image of above-mentioned blood vessel portion the step of the above-mentioned labelling of overlapping demonstration.
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| CN101332093A true CN101332093A (en) | 2008-12-31 |
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| CNA2008101288311A Pending CN101332093A (en) | 2007-06-20 | 2008-06-20 | Medical-diagnosis assisting apparatus, medical-diagnosis assisting method, and radiodiagnosis apparatus |
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2008
- 2008-04-10 JP JP2008102782A patent/JP2009022733A/en not_active Withdrawn
- 2008-06-20 CN CNA2008101288311A patent/CN101332093A/en active Pending
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