CN102793547A - Image processing apparatus and x-ray diagnosis apparatus - Google Patents
Image processing apparatus and x-ray diagnosis apparatus Download PDFInfo
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- CN102793547A CN102793547A CN2012101673300A CN201210167330A CN102793547A CN 102793547 A CN102793547 A CN 102793547A CN 2012101673300 A CN2012101673300 A CN 2012101673300A CN 201210167330 A CN201210167330 A CN 201210167330A CN 102793547 A CN102793547 A CN 102793547A
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Abstract
The invention provides an image processing apparatus and an X-ray diagnosis apparatus, which enables the automatic setting of region of interest to be realized when a catheter operation is carried out. An image operating/ storage unit (10) stores first X-ray image data in which a blood vessel of an object is not visually enhanced and second X-ray image data in which the blood vessel is visually enhanced via a contrast agent put to the detected object, specifies a catheter image included in the first fluoroscopic image by performing image processing of the first X-ray image data, extracts a blood vessel region included in the second fluoroscopic image by performing image processing of the second X-ray image data, and sets a region of interest based on the position of end point of the catheter.
Description
Technical field
Embodiment of the present invention relates to image processing apparatus and radiodiagnosis device.
Background technology
The cardiovascular x-ray image processing apparatus is as the arteriovenous of whole body is being obtained development as the angiography (angiography) or the guiding of the image in the endovascular treatment (interventional treatment) of object with device.At this, the radioscopic image blood processor to be will being handled by the image of X ray photography the state that is injected with contrast agent in the blood vessel, and view data is shown in image displaying part or image display device.
For example, in heart coronary artery radiography (coronary angiogram), inject contrast agent to inlet coronarius through the conduit that inserts.And, as the tremulous pulse inspection, measure the state of painted blood vessel, as tissue examination, measure the state of painted cardiac muscular tissue.In the latter, know the blood flow of with good grounds painted level determinations cardiac muscular tissue, promptly measure the method for perfusion (perfusion).
In these are measured, need on image, set and be concerned about zone (Region of Interest:ROI), and obtain the time-concentration curve in this zone.In order to set ROI, as known method, while the operator need observe radioscopic image via the mouse of operational computations machines such as GUI or button etc. and set.Yet, there is complicated operation, or produces difference based on the operator, in endovascular treatment, operating in the cleaning area is the problem of undesirable that kind.Therefore, there are the needs of the setting automatization want to make ROI, hope certain technology of exploitation.
The prior art document
Patent documentation
Patent documentation 1: No. 7496175 description of United States Patent (USP)
The content of invention
The purpose of embodiment is to provide a kind of image processing apparatus and radiodiagnosis device of automatization of setting of the care zone when realizing the conduit operation.
The image processing apparatus that this embodiment relates to possesses: storage part, storage do not carry out the 1st perspective image data of radiography and throw in the contrast agent of giving above-mentioned subject has carried out radiography to above-mentioned blood vessel the 2nd perspective image data through quilt the blood vessel of subject; Confirm portion, above-mentioned the 1st perspective image data is carried out Flame Image Process, confirm the conduit zone that above-mentioned the 1st fluoroscopy images is comprised; Extraction portion carries out Flame Image Process to above-mentioned the 2nd perspective image data, extracts the angiosomes that above-mentioned the 2nd fluoroscopy images is comprised; And the configuration part, according to the position of the regional end points of above-mentioned conduit, set the care zone at above-mentioned angiosomes.
In addition, the radiodiagnosis device that this embodiment relates to possesses: X ray, take place in X-ray tube; X-ray detector detects the X ray that subject takes place and sees through from above-mentioned X-ray tube; Image generation portion; According to the dateout from above-mentioned X-ray detector, generation is not carried out the 1st perspective image data of radiography and is thrown in the contrast agent of giving above-mentioned subject has carried out radiography to above-mentioned blood vessel the 2nd perspective image data through quilt the blood vessel of subject; Confirm portion, above-mentioned the 1st perspective image data is carried out Flame Image Process and confirmed the conduit zone that above-mentioned the 1st fluoroscopy images is comprised; Extraction portion carries out Flame Image Process and extracts the angiosomes that above-mentioned the 2nd fluoroscopy images is comprised above-mentioned the 2nd perspective image data; And the configuration part, set the care zone according to the position of the regional end points of above-mentioned conduit.
Description of drawings
Fig. 1 is the figure of the structure of the related radiodiagnosis device of this embodiment of expression.
Fig. 2 is the flow chart of the basic processing step in this embodiment of expression.
Fig. 3 is the flow chart of the more detailed treatment step in this embodiment of expression.
Fig. 4 is the figure of expression through an example of the setting pattern in the care zone of image operation/storage part setting of Fig. 1.
Fig. 5 is the figure of expression through another example of the setting pattern in the care zone of image operation/storage part setting of Fig. 1.
Fig. 6 is the figure of expression through another example of the setting pattern in the care zone of image operation/storage part setting of Fig. 1.
Fig. 7 is the figure of expression through another example of the setting pattern in the care zone of image operation/storage part setting of Fig. 1.
Fig. 8 is the figure of expression through another example of the setting pattern in the care zone of image operation/storage part setting of Fig. 1.
Fig. 9 A is the figure of that display part or the user interface of expression through Fig. 1 shows, relevant with the overlapping right coronary artery that the symbol (cross) of representing ROI arranged radioscopic image.
Fig. 9 B is another figure of that display part or the user interface of expression through Fig. 1 shows, relevant with the overlapping right coronary artery that the symbol (cross) of representing ROI arranged radioscopic image.
Fig. 9 C is the figure of that display part or the user interface of expression through Fig. 1 shows, relevant with the overlapping left coronary artery that the symbol (cross) of representing ROI arranged radioscopic image.
Fig. 9 D is another figure of that display part or the user interface of expression through Fig. 1 shows, relevant with the overlapping left coronary artery that the symbol (cross) of representing ROI arranged radioscopic image.
Fig. 9 E is the figure of that display part or the user interface of expression through Fig. 1 shows, relevant with the overlapping coronarius netted view (spider view) that the symbol (cross) of representing ROI arranged radioscopic image.
Fig. 9 F is the figure of that display part or the user interface of expression through Fig. 1 shows, relevant with the overlapping cerebrovascular that the symbol (cross) of representing ROI arranged radioscopic image.
Figure 10 is the figure that the coronarogram picture related ROI (reference area) of this embodiment and regional myocardial zone, that obtain through X ray vasography has been set in expression.
Figure 11 is that this embodiment of expression is related, the figure of the image of the coronarography of the ROI that set rectangular shape.
Figure 12 is that this embodiment of expression is related, the figure of the coronarogram picture of having set polygonal ROI.
Figure 13 is the figure of an example of related display part of this embodiment of expression or the time-concentration curve that user interface demonstrated.
Figure 14 is the figure that the coronarogram picture related ROI (reference area) of this embodiment and comparison other zone, that obtain through X ray vasography has been set in expression.
Figure 15 be display part or the user interface overlapping demonstration of expression through Fig. 1, with reference area time corresponding concentration curve and with the figure of comparison other zone time corresponding concentration curve.
(symbol description)
1... high voltage generation portion, 2...X ray generation portion, 3... subject, 4... bed, 5...X ray detection portion, 6... supporting device, 7...C shape arm, 8... systems control division, 9... operating portion, 10... image operation storage part, 11... display part, 12... hand switch, 14... user interface, 15... syringe, 16... electrocardiograph, 20...X ray control part, 21...X ray tube ball, 22... collimator
The specific embodiment
Below, the image processing apparatus and the radiodiagnosis device that relate to reference to this embodiment of description of drawings.
Fig. 1 representes the radiodiagnosis device that this embodiment is related.The radiodiagnosis device has frame 100.Frame 100 has C shape arm 7.C shape arm 7 free rotary ground supportings are in supporting device 6.End at C shape arm 7 is equipped with X ray generation portion 2.X ray generation portion 2 has X-ray tube ball 21 and X ray collimator 22.The heater current that the filament of X-ray tube ball 21 is supplied with in addition, takes place in the high voltage (tube voltage) that applies between the electrode that high voltage generation portion 1 takes place X-ray tube ball 21.X ray control part 20 is according to the control of systems control division 8, and control is by the tube voltage and the heater current of 1 generation of high voltage generation portion.
The other end at C shape arm 7 is equipped with X ray test section 5.X ray test section 5 is across carrying the subject 3 that places bed 4, and is opposed with the X-ray tube ball 21 of X ray generation portion 2.Typically, X ray test section 5 is the surface detectors that a plurality of detecting elements (pixel) that incident X-rays directly or indirectly converts electric charge to are arranged in two-dimentional shape.X ray test section 5 is through the control of systems control division 8, typically makes by charge storage, electric charge to read and the detection action in 1 cycle constituting of resetting repeated with certain cycle.
Systems control division 8 for example mainly has according to beginning to inject the moment of contrast agent from the injection commencing signal of syringe 15 outputs, at the electrocardiogram (ECG) of the subject 3 that finishes to determine from the injection end signal of syringe 15 outputs and by electrocardiograph 16 to moment that subject injects contrast agent by syringe 15 to subject 3, controls the function of shooting action.
Image operation/storage part 10 has according to the function of the data of the function that the data of image take place from the output of X ray test section 5, memory image and the function of handling the data of image.For example, image operation/storage part 10 has generation, storage and the blood vessel of subject is not carried out the 1st perspective image data of radiography and blood vessel carried out the function of the 2nd perspective image data of radiography through throwing in the contrast agent of giving subject.In addition, image operation/storage part 10 has the function to the conduit zone that the 1st perspective image data is carried out Flame Image Process and definite the 1st fluoroscopy images is comprised.In addition, image operation/storage part 10 has and the 2nd perspective image data is carried out Flame Image Process and extracts the function of the angiosomes that the 2nd fluoroscopy images comprised.In addition, image operation/storage part 10 has the function of setting the care zone according to the position of the regional end points of conduit at angiosomes.In addition, image operation/storage part 10 has the function of carrying out graph thinning, the function of end-point detection and the various image processing functions such as function of carrying out linear tracking.
Operating portion 9 is connected with systems control division 8.Has the user interface 14 of hand switch 12, display and touch screen etc. in operating portion 9 settings.
Fig. 2 is the flow chart of the basic processing step that relates to of this embodiment.Shown in this flow chart, 10 pairs of radioscopic images of image operation/storage part are implemented Flame Image Process, and from radioscopic image, extract the end points of angiosomes and the end points (step S61, S62) in conduit zone.That is, extract the end points of angiosomes position coordinates, with the position coordinates of the end points in conduit zone.
Then, image operation/storage part 10 compares the position coordinates of the end points in the position coordinates of the end points of angiosomes and conduit zone, and the position of resolving angiosomes and conduit zone concerns (step S63).Particularly, image operation/storage part 10 utilizes the centrage of angiosomes, confirms apart from the point on the nearest angiosomes of the end points in conduit zone.That is, on angiosomes, confirm the end points (below, be called the conduit end points) in conduit zone.And, the set positions ROI (step S64) of image operation/storage part 10 on the angiosomes of the distance certain apart from the conduit end points on the angiosomes.
Fig. 3 is the flow chart of the detailed treatment step that relates to of expression embodiment.In the step ST1 of Fig. 3, image operation/storage part 10 is read frame 2b in preceding frame 2a of the radiography of storing in advance and the radiography.Frame 2a is when conduit is operated before the radiography, the radioscopic image of before injecting contrast agent, the blood vessel of subject being made a video recording.Frame 2a comprises the conduit zone before the radiography, does not comprise angiosomes.In addition, frame 2a also includes the background of bony areas etc. outside the conduit zone before the radiography.Frame 2b is when conduit is operated in the radiography, at the contrast agent through throw in being given subject blood vessel is carried out the radioscopic image that moment of radiography makes a video recording.Frame 2b includes conduit zone and angiosomes in the radiography.In addition, even before radiography, among the frame 2b, outside conduit zone and the angiosomes, also include backgrounds such as bony areas.In step ST2, image operation/storage part 10 extracts the conduit zone the frame 2a before radiography.Thus, for example, extract bianry image 2c as foreground area with conduit zone.Image operation/storage part 10 extracts conduit zone and angiosomes among the frame 2b from radiography.Thus, for example, extract bianry image 2d as foreground area with conduit zone and angiosomes.
That is, in embodiment, use is not carried out the blood vessel of subject the frame 2a of radiography and through contrast agent the frame 2b that blood vessel carries out radiography is carried out Flame Image Process.Frame 2a, 2b include the conduit zone.
In step ST3, image operation/storage part 10 is that template is implemented template matching to bianry image 2d with bianry image 2c, from bianry image 2d, confirms the conduit zone, and from bianry image 2d, removes determined conduit zone.Particularly, image operation/storage part 10 is a template with bianry image 2c, and this bianry image 2c and bianry image 2d are compared.Image operation/storage part 10 is according to the two value ratio result between each pixel of two bianry images, estimates the degree with the cross-correlation mutually of bianry image 2c.Image operation/storage part 10 is confirmed the conduit zone that bianry image 2d is comprised according to the degree of phase cross-correlation.Above processing is called the conduit coupling.Handle through this, can separate and conduit zone and vasculature part that definite bianry image 2d is comprised.And image operation/storage part 10 is removed determined conduit zone from bianry image 2d, and generates the bianry image 2e that has removed the conduit zone.Bianry image 2e includes the angiosomes from frame 2b in the radiography.
In step ST4, image operation/storage part 10 to the bianry image 2c of angiosomes and the bianry image 2e in conduit zone, is implemented graph thinning and is handled respectively.Handle through graph thinning, the graph thinning image 2f of the centrage of angiosomes is represented in generation according to bianry image 2c, and generates the graph thinning image 2g of the centrage in expression conduit zone according to bianry image 2e.
In step ST5, image operation/storage part 10 pairs of graph thinning images 2f and graph thinning image 2g carry out end-point detection, and detect the position coordinates of the conduit end points among the graph thinning image 2g.Particularly, at first, image operation/storage part 10 waits to confirm the end points in the conduit zone in the graph thinning image 2f through Flame Image Process.Usually, at the end points of two position probing conduits, but in embodiment, the near end points of chosen distance image central authorities is a process object.In addition, image operation/storage part 10 waits to confirm the end points of the angiosomes in the graph thinning image 2g through Flame Image Process.Because angiosomes is branched off into a plurality of branches usually, therefore, confirm a plurality of end points more than 3 usually.Image operation/storage part 10 from a plurality of end points of in graph thinning image 2g, confirming, confirm distance in graph thinning image 2f as the nearest end points Pe of the selected end points of process object.Determined end points Pe means the end points (conduit end points) in the conduit zone on the angiosomes.
In step ST6,10 pairs of graph thinning images of image operation/storage part 2g implements linear tracking process, and on the centrage of the angiosomes of the distance certain apart from conduit end points Pe (for example, about 10mm～50mm), sets ROI.Like this, automatically set the position coordinates of ROI.And, set ROI on the position coordinates of image operation/storage part 10 frame 2b in the radiography corresponding with the position coordinates that sets.Systems control division 8 is will be in radiography overlapping among the frame 2b to have that images displayed 2h is shown in display part 11 with ROI corresponding symbol Si.The image of overlapping displaying symbol Si has more than and is defined in frame 2b in the radiography, also can be frame 2a before the radiography.Overlapping have symbol Si and images displayed can at random be selected via operating portion 9.
In addition, so-called linear tracking process is meant the processing of the branch point of line segment that detected image comprises, line segment.This processing for example can obtain by the combination of the bit pattern of 3 * 3 pixel institute area surrounded (zonule), compare with the pixel value (0 or 1) of all pixels that constitute bianry image, detect with image on the consistent bit pattern in each zonule.Like this, be distribution according to the bit pattern of each adjacent zonule, come the processing of the shape of the line segment in the recognition image.Image operation/storage part 10 should be handled for being implemented by the centrage of the angiosomes of graph thinning.
Then, describe to the various setting patterns of being concerned about the zone.
The shape preparation of being concerned about the zone has various forms.Fig. 4, Fig. 5 and Fig. 6 are the figure of the shape model of expression ROI.Like Fig. 4, Fig. 5, shown in Figure 6, in step ST6, follow the trail of the centre line C L of angiosomes BR through image operation/storage part 10.Image operation/storage part 10 begins from end points Pe, sets a plurality of care region R OI along centre line C L with specified distance.For example, as shown in Figure 4, each is concerned about that region R OI is set to the point (1 pixel) on the centre line C L.Each is concerned about that region R OI has more than and is defined as a little, and is as shown in Figure 5, also can be set at the regional area with set area.The shape of regional area is not defined as rectangle shown in Figure 5, can have geometry shape arbitrarily such as circle, square, ellipse, rhombus yet.Be concerned about region R OI towards as shown in Figure 5, also can be along centre line C L.As shown in Figure 6, also can be defined as 2 P1 setting on the centre line C L and the scope between the P2, and set at angiosomes and to be concerned about region R OI.The interval of 2 P1 and P2 can at random be set via operating portion 9.In addition, the type of being concerned about the shape in zone also can at random be set via operating portion 9.
In addition, in above-mentioned explanation, suppose a plurality of care region R OI of image operation/storage part 10 settings.Yet this embodiment is not limited thereto.As shown in Figure 7, image operation/storage part 10 also can be set on a position of the distance of leaving end points Pe regulation on the centre line C L and be concerned about region R OI.In addition, in above-mentioned explanation, suppose to be concerned about region R OI towards along centre line C L.Yet this embodiment is not limited thereto.As shown in Figure 8, image operation/storage part 10 also can be with being concerned about that region R OI is horizontal.In addition, be concerned about region R OI towards being not limited to centre line C L direction and horizontal direction, can be set at arbitrarily towards.Be concerned about region R OI towards for example can at random setting via operating portion 9.
Then, setting the clinical practice example of handling to the related ROI of this embodiment describes.
Fig. 9 A, 9B, 9C, 9D, 9E, 9F are the figure of an example of the clinical image that shown of expression display part 11.Fig. 9 A, B represent and the overlapping relevant radioscopic image of right coronary artery that the symbol (cross) of expression ROI is arranged.Fig. 9 C, D represent and the overlapping relevant radioscopic image of left coronary artery that the symbol (cross) of expression ROI is arranged.Fig. 9 E representes and the overlapping relevant radioscopic image of coronarius netted view that the symbol (cross) of expression ROI is arranged.Figure F representes and the overlapping relevant radioscopic image of cerebrovascular that expression ROI symbol (cross) is arranged.As above,, ROI automatically be overlapped in each radioscopy image show according to this embodiment.
Figure 10 shows the coronarogram picture that obtains through X ray vasography (below, be called the CAG image) as an example.In the CAG image, because the ray absorption of the X ray of contrast agent is big, therefore, can be in through process coronarius, can distinguish the degree of shape coronarius and other tissue, the identification contrast.
Shown in figure 10, carry out conduit 101 is inserted into the operation of coronary artery 102, and, inject contrast agent by conduit 101 certain time ground in this position.At least contain to inject before the beginning to inject and carry out the X ray shooting through ground during the stipulated time after finishing to contrast agent from contrast agent.
When contrast agent injects coronary artery via conduit 101, collect radioscopic image by the radiodiagnosis device of Fig. 1.If image collection finishes, then through image operation/storage part 10, according to aforementioned algorithm, ROI103 is automatically set in the position on the angiosomes that with conduit 101 is benchmark.For example, ROI103 is set in the reference area coronarius (blood supply of cardiac muscle zone) 103 on the CAG image.In addition, for the benchmark zone, on cardiac muscle, set at least one regional myocardial zone 104.
The pixel value of a plurality of pixels that image operation/storage part 10 is comprised according to blood supply of cardiac muscle zone 103 generates the time-concentration curve (Time Density curve:TDC) relevant with blood supply of cardiac muscle regional 103.Likewise, the pixel value of a plurality of pixels that image operation/storage part 10 is comprised according to regional myocardial zone 104 generates and the regional relevant time-concentration curve of regional myocardial.
Regional myocardial zone 104 is set on the myocardial region, has a plurality of pixels usually.The concentration that is equivalent to the radiography dosage in regional myocardial zone 104 is calculated as pixel average usually.But regional myocardial zone 104 also can be the zone with single pixel.Blood supply of cardiac muscle zone 103 typical situation are to have a rectangular shape that possesses with the width of blood vessel roughly equiv or slightly little width, and along blood vessel be set at arbitrarily towards, and comprise a plurality of pixels.As the concentration of the radiography dosage that is equivalent to blood supply of cardiac muscle zone 103, calculate as pixel average usually.Blood supply of cardiac muscle zone 103 is set in the part arbitrarily of the stream between syringe 15 and the myocardium region-of-interest; If further limit; Then be set in the part arbitrarily of conduit, perhaps outlet of conduit (being equivalent to the coronary artery inlet) and cardiac muscle are noted the part arbitrarily between the zone.The ROI that sets like this is that kind shown in Figure 11 or 12 for example, is presented on the CAG image.In Figure 11, ROI is set at orthogonal zone.In Figure 12, ROI is set at the zone of the polygon shape with certain area.
Figure 13 is the figure of an example of the time-concentration curve that shown of expression display part 11 or user interface 14.This time-concentration curve is the figure that the concentration change that is accompanied by effluxion that is injected into contrast agent coronarius is carried out pictorialization, calculates through image operation/storage part 10.In addition, also can with the concentration dependent TTP (time to peak) of contrast agent value pictorialization, also can be with the blood flow informations such as mean transit time of blood flow, blood flow volume or blood as the index pictorialization.In addition, also can the Two dimensional Distribution of desired value of the blood flow (perfusion) of expression cardiac muscular tissue be handled as blood flow information.
The comparison other zone of the blood flow information of reference area (blood supply of cardiac muscle zone) 103 has more than and is defined as the regional myocardial zone 104 that is set in myocardial region.For example, shown in figure 14 as comparison other zone, also can be set at the regional area 106 on the angiosomes 102 that is set in a side distant apart from reference area 103.Comparison other zone 106 utilizes this embodiment to relate to the ROI set algorithm and sets.Below, describe to the setting in comparison other zone 106.At first; Image operation/storage part 10 is as above-mentioned; Along the centrage of angiosomes 102 set positions reference area 103 from the closer distance of the end points of conduit 101, and along the centrage of the angiosomes 102 set positions comparison other zone 106 from the distant distance of the end points of conduit 101.Image operation/storage part 10 is respectively to blood flow informations such as reference area 103 and comparison other zone concentration curves 106 computation time.For example show with reference area 103 time corresponding concentration curves with comparison other zone 106 time corresponding concentration curves through display part 11 or user interface 14.The operator be through will comparing with reference area 103 time corresponding concentration curves with comparison other zone 106 time corresponding concentration curves, thereby can easily understand coronary artery.
Figure 15 be expression through display part 11 or user interface 14 overlapping demonstrations, with reference area 103 time corresponding concentration curves and with the figure of comparison other zone 106 time corresponding concentration curves.In addition, be made as between Figure 15 related reference area 103 and comparison other zone 106, have narrow positions.At this moment, have with the peak value Pe2 of the comparison other zone 106 time corresponding concentration curves in the downstream of narrow positions and the tendency of the remarkable step-down of comparing with the peak value Pe1 of the reference area 103 time corresponding concentration curves of the upstream side of narrow positions.In addition, broaden with comparing with the normal person's of health situation with the peak value due in te2 of comparison other zone 106 time corresponding concentration curves with the interval of the peak value due in te1 of reference area 103 time corresponding concentration curves.User easier is found so caused blood flow anomalies of narrow positions through observing with reference area 103 time corresponding concentration curves with comparison other zone 106 time corresponding concentration curves.
As above-mentioned, according to embodiment, confirm the ROI of the side that blood vessel middle distance conduit is near, and also confirm vessel centerline.That is,, need not can set ROI through just specifying based on operator's manual operation through the processing of system side.According to this embodiment, owing to can automatically detect ROI, therefore, if the situation that will detect ROI as triggering signal and offer software, then can automatically be carried out various processing.In addition, according to this embodiment, can confirm to become in a plurality of time-concentration curves the curve of benchmark.
For example, can be that benchmark is measured the time-concentration curve information among other the ROI on the blood vessel with the ROI of a side near apart from conduit.That is to say, can automatically measure time delay or the amplitude minimizing degree of counting from the benchmark ROI nearest to other ROI apart from conduit.In addition, also can show mensuration result images or blood vessel chart.
As above-mentioned, radiodiagnosis device and image processing apparatus that this embodiment is related have image operation/storage part 10.Image operation/storage part 10 has storage part, confirms portion, extraction portion and configuration part.Storage portion stores is not carried out the 1st perspective image data of radiography and is thrown in the contrast agent of giving subject has carried out radiography to blood vessel the 2nd perspective image data through quilt the blood vessel of subject.Confirm portion that the 1st perspective image data is carried out Flame Image Process and confirm the conduit zone that the 1st fluoroscopy images is comprised.Extraction portion carries out Flame Image Process and extracts the angiosomes that the 2nd fluoroscopy images is comprised the 2nd perspective image data.The configuration part is set at angiosomes according to the position of the end points in conduit zone and is concerned about the zone.
More specifically, image operation/storage part 10 uses the radioscopic image data after preflood radioscopic image data of contrast agent and contrast agent inject, from preflood image data extraction conduit zone, and the image data extraction angiosomes after the injection.Then, image operation/storage part 10 carries out graph thinning for conduit zone and angiosomes respectively to be handled, and calculates the end in conduit zone and the centrage of angiosomes.And image operation/storage part 10 is set ROI on the coordinate on the angiosomes of the certain distance in the end in distance between center line conduit zone.
In addition, in the above-described embodiment, show and utilized the setting of ROI of the coronary artery of heart having been thrown in the image of contrast agent.Yet this embodiment is not limited thereto.That is, this embodiment also can be applicable to CAG or abdominal organs radiography etc., all have used the general contrast examination of conduit.According to this embodiment, owing to can automatically set ROI, therefore, can obtain and be not only heart to the blood vessel at intravital all position, can also be the time-concentration curve of contrast agent that intravital all blood vessels are thrown in.
Like this, according to this embodiment, a kind of image processing apparatus and radiodiagnosis device of automatization of setting of care zone of realizing conduit when operation can be provided.
In addition, in above-mentioned explanation, the process object image that is made as image processing apparatus is the radioscopic image that takes place through the radiodiagnosis device.Yet this embodiment is not limited thereto.The process object image of the image processing apparatus that this embodiment is related also can be through the CT image of X ray computer laminagraph device generation or the MRI image that takes place through MR imaging apparatus.
Although clear several embodiments of the present invention, but these embodiments are to point out as an example, are not intended to limit scope of the present invention.These embodiments can be implemented with other various forms, in the scope of the main idea that does not break away from invention, can carry out various omissions, displacement, change.These embodiments or its distortion are contained in scope of invention or the main idea, and are contained in the invention and impartial scope thereof of claims records.
Claims (16)
1. image processing apparatus is characterized in that possessing:
Storage part, storage not to the blood vessel of subject carry out radiography the 1st perspective image data, with the 2nd perspective image data of above-mentioned blood vessel having been carried out radiography through contrast agent that throw in to be given above-mentioned subject;
Confirm portion, above-mentioned the 1st perspective image data is carried out Flame Image Process and confirmed the conduit zone that above-mentioned the 1st fluoroscopy images is comprised;
Extraction portion carries out Flame Image Process and extracts the angiosomes that above-mentioned the 2nd fluoroscopy images is comprised above-mentioned the 2nd perspective image data; And
The configuration part is set the care zone according to the position of the regional end points of above-mentioned conduit at above-mentioned angiosomes.
2. image processing apparatus according to claim 1 is characterized in that,
Above-mentioned configuration part is in the set positions above-mentioned care zone of centrage on the above-mentioned angiosomes of the certain distance of the end points in above-mentioned conduit zone along above-mentioned angiosomes.
3. image processing apparatus according to claim 1 is characterized in that,
Possess display part, will be presented at least one side in above-mentioned the 1st fluoroscopy images and above-mentioned the 2nd fluoroscopy images overlappingly with the above-mentioned care zone corresponding symbol of setting.
4. image processing apparatus according to claim 1 is characterized in that,
Also possess calculating part, calculate and the relevant blood flow information of setting in above-mentioned care zone.
5. image processing apparatus according to claim 4 is characterized in that,
Above-mentioned blood flow information is thrown in the time-concentration curve to the contrast agent of blood vessel.
6. image processing apparatus according to claim 5 is characterized in that,
Above-mentioned blood vessel is a coronary artery.
7. image processing apparatus according to claim 4 is characterized in that,
A plurality of care zone is set at above-mentioned angiosomes in above-mentioned configuration part,
Aforementioned calculation portion is calculated and above-mentioned a plurality of a plurality of blood flow informations of being concerned about that the zone is corresponding respectively of setting.
8. image processing apparatus according to claim 4 is characterized in that,
Aforementioned calculation portion is that benchmark calculates the blood flow information in other zones with the above-mentioned care zone of setting.
9. radiodiagnosis device is characterized in that possessing:
X ray takes place in X-ray tube;
X-ray detector detects the X ray that subject takes place and sees through from above-mentioned X-ray tube;
Image generation portion; According to the dateout from above-mentioned X-ray detector, generation is not carried out the 1st perspective image data of radiography and is thrown in the contrast agent of giving above-mentioned subject has carried out radiography to above-mentioned blood vessel the 2nd perspective image data through quilt the blood vessel of subject;
Confirm portion, above-mentioned the 1st perspective image data is carried out Flame Image Process and confirmed the conduit zone that above-mentioned the 1st fluoroscopy images is comprised;
Extraction portion carries out Flame Image Process and extracts the angiosomes that above-mentioned the 2nd fluoroscopy images is comprised above-mentioned the 2nd perspective image data; And
The care zone is set according to the position of the regional end points of above-mentioned conduit in the configuration part.
10. radiodiagnosis device according to claim 9 is characterized in that,
Above-mentioned configuration part is in the set positions above-mentioned care zone of centrage on the above-mentioned angiosomes of the end points in above-mentioned conduit zone along above-mentioned angiosomes.
11. radiodiagnosis device according to claim 9 is characterized in that,
Also possess display part, will be presented at least one side in above-mentioned the 1st fluoroscopy images and above-mentioned the 2nd fluoroscopy images overlappingly with the above-mentioned care zone corresponding symbol of setting.
12. radiodiagnosis device according to claim 9 is characterized in that,
Also possess calculating part, calculate and the relevant blood flow information of setting in above-mentioned care zone.
13. radiodiagnosis device according to claim 12 is characterized in that,
Above-mentioned blood flow information is thrown in the time-concentration curve to the contrast agent of blood vessel.
14. radiodiagnosis device according to claim 13 is characterized in that,
Above-mentioned blood vessel is a coronary artery.
15. radiodiagnosis device according to claim 12 is characterized in that,
A plurality of care zone is set at above-mentioned angiosomes in above-mentioned configuration part,
Aforementioned calculation portion is calculated and above-mentioned a plurality of a plurality of blood flow informations of being concerned about that the zone is corresponding respectively of setting.
16. radiodiagnosis device according to claim 12 is characterized in that,
Aforementioned calculation portion is that benchmark calculates the blood flow information in other zones with the above-mentioned care zone of setting.
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| JP2012096445A JP6013012B2 (en) | 2011-05-27 | 2012-04-20 | Image processing apparatus and X-ray diagnostic apparatus |
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