CN102793547B - Image processing apparatus and x-ray diagnosis apparatus - Google Patents
Image processing apparatus and x-ray diagnosis apparatus Download PDFInfo
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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
Embodiments of the present invention relate to image processing apparatus and radiographic apparatus.
Background technology
Cardiovascular x-ray image processing apparatus obtains development as using the image guiding device of the arteriovenous of whole body in the angiography (angiography) or endovascular treatment (interventional treatment) of object.At this, radioscopic image blood processor processes by the image of X-ray with state Ink vessel transfusing being injected with to contrast agent, and view data is shown in image displaying part or image display device.
Such as, in heart coronary artery radiography (coronary angiogram), inject contrast agent by the conduit inserted to entrance coronarius.Further, as tremulous pulse inspection, measure the state of the blood vessel of dyeing, as tissue examination, measure the state of the cardiac muscular tissue of dyeing.In the latter, know the blood flow of the level determinations cardiac muscular tissue of with good grounds dyeing, namely measure the method for perfusion (perfusion).
In these are measured, need on image, set Region Of Interest (Region of Interest:ROI), and obtain the time-concentration curve in this region.In order to set ROI, as known method, operator needs to observe radioscopic image and sets via the mouse of the operation computers such as GUI or button etc.But there is complicated operation, or produce the difference based on operator, carrying out in cleaning area operating in endovascular treatment is undesirable such problem.Therefore, there are the needs wanting the setting automatization making ROI, it is desirable to develop certain technology.
Prior art document
Patent documentation
Patent documentation 1: United States Patent (USP) No. 7496175 description
The content of invention
The object of embodiment is to provide a kind of image processing apparatus and radiographic apparatus of automatization of setting of Region Of Interest when realizing catheter manipulation.
Image processing apparatus of the present embodiment possesses: storage part, stores and does not carry out the 1st perspective image data of radiography and the 2nd perspective image data by having been carried out radiography to above-mentioned blood vessel to the contrast agent of above-mentioned subject by input to the blood vessel of subject; Determination portion, carries out image procossing to above-mentioned 1st perspective image data, determines the catheter area that above-mentioned 1st fluoroscopy images comprises; Extraction unit, carries out image procossing to above-mentioned 2nd perspective image data, extracts the angiosomes that above-mentioned 2nd fluoroscopy images comprises; And configuration part, according to the position of the end points of above-mentioned catheter area, in above-mentioned angiosomes setting Region Of Interest.
In addition, radiographic apparatus of the present embodiment possesses: X-ray tube, and X-ray occurs; X-ray detector, detects and to occur and through the X-ray of subject from above-mentioned X-ray tube; Image generating unit, according to the output data from above-mentioned X-ray detector, occur not carry out the 1st perspective image data of radiography and the 2nd perspective image data by having been carried out radiography to above-mentioned blood vessel to the contrast agent of above-mentioned subject by input to the blood vessel of subject; Determination portion, carries out image procossing to above-mentioned 1st perspective image data and determines the catheter area that above-mentioned 1st fluoroscopy images comprises; Extraction unit, carries out image procossing to above-mentioned 2nd perspective image data and extracts the angiosomes that above-mentioned 2nd fluoroscopy images comprises; And configuration part, the position according to the end points of above-mentioned catheter area sets Region Of Interest.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings of image processing apparatus of the present embodiment and radiographic apparatus.
Fig. 1 represents the radiographic apparatus involved by present embodiment.Radiographic apparatus has frame 100.Frame 100 has C-arm 7.C-arm 7 free rotary ground supporting is in supporting device 6.In one end of C-arm 7, X-ray generating unit 2 is installed.X-ray generating unit 2 has X-ray tube ball 21 and X-ray collimator 22.There is the high voltage (tube voltage) applied between the electrode to X-ray tube ball 21 in high voltage generating unit 1, in addition, the heater current supplied the filament of X-ray tube ball 21 occurs.X-ray control unit 20, according to the control of systems control division 8, controls the tube voltage that occurred by high voltage generating unit 1 and heater current.
At the other end of C-arm 7, X-ray test section 5 is installed.X-ray test section 5 is across the subject 3 being placed in bed 4, opposed with the X-ray tube ball 21 of X-ray generating unit 2.Typically, X-ray test section 5 is surface detectors that the multiple detecting elements (pixel) incident X-rays directly or indirectly being converted to electric charge are arranged in two-dimentional shape.X-ray test section 5, by the control of systems control division 8, typically makes to be repeated with certain cycle by charge storage, electric charge reading and the detection action in 1 cycle formed that resets.
Systems control division 8 mainly has such as according at the injection commencing signal exported to the moment of injecting contrast agent subject 3 from syringe 15 by syringe 15, the injection end signal exported from syringe 15 in the moment terminating to inject contrast agent to subject and the electrocardiogram (ECG) of subject 3 that determined by electrocardiograph 16, controls the function of shooting action.
Image operation/storage part 10 has the function that the function of the data of image, the function of the data of storage figure picture and the data of process image occur according to the output from X-ray test section 5.Such as, image operation/storage part 10 has generation, stores and do not carry out the 1st perspective image data of radiography and the function by the 2nd perspective image data of to the contrast agent of subject, blood vessel have been carried out to radiography by input to the blood vessel of subject.In addition, image operation/storage part 10 has and carries out image procossing to the 1st perspective image data and determine the function of the catheter area that the 1st fluoroscopy images comprises.In addition, image operation/storage part 10 has and carries out image procossing to the 2nd perspective image data and extract the function of the angiosomes that the 2nd fluoroscopy images comprises.In addition, image operation/storage part 10 has the function of position in angiosomes setting Region Of Interest according to the end points of catheter area.In addition, image operation/storage part 10 has the various image processing functions such as the function performing the function of graph thinning, the function of end-point detection and perform Linear tracing.
Operating portion 9 is connected with systems control division 8.The user interface 14 with hand switch 12, display and touch screen etc. is set at operating portion 9.
Fig. 2 is the flow chart of basic treatment step of the present embodiment.As shown in this flow chart, image operation/storage part 10 pairs of radioscopic image real-time image processings, and from radioscopic image, extract the end points of angiosomes and the end points (step S61, S62) of catheter area.That is, the position coordinates of the end points of angiosomes, the position coordinates with the end points of catheter area is extracted.
Then, the position coordinates of the position coordinates of the end points of angiosomes and the end points of catheter area compares by image operation/storage part 10, resolves the position relationship (step S63) of angiosomes and catheter area.Specifically, image operation/storage part 10 utilizes the centrage of angiosomes, determines the point on the angiosomes that the end points of distance catheter area is nearest.That is, on angiosomes, the end points (hereinafter referred to as conduit end points) of catheter area is determined.Further, the position setting ROI(step S64 of image operation/storage part 10 on the angiosomes of the distance certain apart from the conduit end points on angiosomes).
Fig. 3 is the flow chart representing the detailed treatment step that embodiment relates to.In the step ST1 of Fig. 3, image operation/storage part 10 to read before the radiography prestored frame 2b in frame 2a and radiography.Before radiography, frame 2a is when catheter manipulation, the blood vessel of subject is carried out the radioscopic image of making a video recording before injecting contrast agent.Before radiography, frame 2a comprises catheter area, does not comprise angiosomes.In addition, before radiography, frame 2a is outside catheter area, also includes the background of bony areas etc.In radiography, frame 2b is when catheter manipulation, by being thrown in the radioscopic image that the moment of blood vessel being carried out radiography to the contrast agent of subject carries out making a video recording.In radiography, frame 2b includes catheter area and angiosomes.In addition, even if before radiography in frame 2b, outside catheter area and angiosomes, also include the backgrounds such as bony areas.In step ST2, image operation/storage part 10 extracts catheter area from frame 2a before radiography.Thus, such as, the bianry image 2c with catheter area is extracted as foreground area.Image operation/storage part 10 extracts catheter area and angiosomes in frame 2b from radiography.Thus, such as, the bianry image 2d with catheter area and angiosomes is extracted as foreground area.
That is, in embodiments, the frame 2a that blood vessel of subject do not carried out radiography is used to carry out image procossing with the frame 2b by contrast agent blood vessel being carried out radiography.Frame 2a, 2b include catheter area.
In step ST3, image operation/storage part 10 implements template matching for template to bianry image 2d with bianry image 2c, determines catheter area, and remove determined catheter area from bianry image 2d from bianry image 2d.Specifically, this bianry image 2c and bianry image 2d, compares for template with bianry image 2c by image operation/storage part 10.Image operation/storage part 10 according to the two value ratio between each pixel of two bianry images compared with result, evaluate the degree with the phase cross-correlation of bianry image 2c.Image operation/storage part 10, according to the degree of phase cross-correlation, determines the catheter area that bianry image 2d comprises.Above process is called that conduit mates.By this process, can separate and determine the catheter area that bianry image 2d comprises and vasculature part.Further, determined catheter area removes by image operation/storage part 10 from bianry image 2d, and generates the bianry image 2e eliminating catheter area.Bianry image 2e includes the angiosomes from frame 2b in radiography.
In step ST4, image operation/storage part 10, respectively for the bianry image 2c of angiosomes and the bianry image 2e of catheter area, implements Thinning process.By Thinning process, generate the graph thinning image 2f of the centrage representing angiosomes according to bianry image 2c, and generate the graph thinning image 2g of the centrage representing catheter area according to bianry image 2e.
In step ST5, image operation/storage part 10 couples of graph thinning image 2f and graph thinning image 2g perform end-point detection, and detect the position coordinates of the conduit end points in graph thinning image 2g.Specifically, first, image operation/storage part 10 determines the end points of the catheter area in graph thinning image 2f by image procossing etc.Usually, at the end points of two position detected catheter, but in embodiments, the near end points of chosen distance image central authorities is handling object.In addition, image operation/storage part 10 determines the end points of the angiosomes in graph thinning image 2g by image procossing etc.Because angiosomes is branched off into multiple branch usually, therefore, multiple end points of more than 3 are usually determined.Image operation/storage part 10, from the multiple end points determined in graph thinning image 2g, determines distance in graph thinning image 2f as the end points Pe that the end points selected by handling object is nearest.Determined end points Pe means the end points (conduit end points) of the catheter area on angiosomes.
In step ST6, image operation/storage part 10 couples of graph thinning image 2g implement Linear tracing process, and set ROI on the centrage of the angiosomes of the distance (such as, about 10mm ~ 50mm) certain apart from conduit end points Pe.Like this, the position coordinates of ROI is automatically set.Further, the position coordinates of image operation/storage part 10 frame 2b in the radiography corresponding with set position coordinates sets ROI.The image 2h that overlap in frame 2b in radiography is had the symbol Si corresponding with ROI and shows by systems control division 8 is shown in display part 11.The image of overlapping displaying symbol Si has more than and is defined in frame 2b in radiography, also can be frame 2a before radiography.The image that overlap has symbol Si and shows at random can be selected via operating portion 9.
In addition, so-called Linear tracing process refers to the process of the branch point of line segment that detected image comprises, line segment.This processing example as can obtain surround by the pixel of 3 × 3 the bit pattern in region (zonule) combination, compare with the pixel value (0 or 1) of all pixels forming bianry image, detect the bit pattern consistent with each zonule on image.Like this, be the distribution of the bit pattern according to adjacent each zonule, carry out the process of the shape of the line segment in recognition image.Image operation/storage part 10 implements this process for by the centrage of the angiosomes of graph thinning.
Then, the various set models for Region Of Interest are described.
The shape of Region Of Interest prepares there is various form.Fig. 4, Fig. 5 and Fig. 6 are the figure of the shape model representing ROI.As shown in Fig. 4, Fig. 5, Fig. 6, in step ST6, followed the trail of the centre line C L of angiosomes BR by image operation/storage part 10.Image operation/storage part 10, from end points Pe, sets multiple Region Of Interest ROI along centre line C L with the distance interval of regulation.Such as, as shown in Figure 4, each Region Of Interest ROI is set to the point (1 pixel) in centre line C L.Each Region Of Interest ROI has more than and is defined as a little, as shown in Figure 5, also can be set as the regional area with set area.The shape of regional area is not defined as the rectangle shown in Fig. 5, can have the geometry shape arbitrarily such as circle, square, ellipse, rhombus yet.Region Of Interest ROI towards as shown in Figure 5, also can along centre line C L.As shown in Figure 6, the scope between 2 P1 and P2 set in centre line C L also can be defined as, and at angiosomes setting Region Of Interest ROI.The interval of 2 P1 and P2 at random can set via operating portion 9.In addition, the type of the shape of Region Of Interest also at random can set via operating portion 9.
In addition, in the above description, suppose that image operation/storage part 10 sets multiple Region Of Interest ROI.But present embodiment is not limited thereto.As shown in Figure 7, image operation/storage part 10 also the position leaving the distance that end points Pe specifies in centre line C L can set Region Of Interest ROI.In addition, in the above description, suppose Region Of Interest ROI towards along centre line C L.But present embodiment is not limited thereto.As shown in Figure 8, image operation/storage part 10 also can by horizontal for Region Of Interest ROI.In addition, Region Of Interest ROI towards being not limited to centre line C L direction and horizontal direction, can be set as arbitrarily towards.Region Of Interest ROI towards such as at random setting via operating portion 9.
Then, the clinical practice example for the ROI setting process involved by present embodiment is described.
Fig. 9 A, 9B, 9C, 9D, 9E, 9F are the figure of an example of the clinical image represented shown by display part 11.Fig. 9 A, B represent have to overlap the radioscopic image that the right coronary artery of the symbol (cross) representing ROI is relevant.Fig. 9 C, D represent have to overlap the radioscopic image that the left coronary artery of the symbol (cross) representing ROI is relevant.Fig. 9 E represents have to overlap the radioscopic image that the coronarius netted view of the symbol (cross) representing ROI is relevant.Figure F represents the radioscopic image having to overlap and represent that the cerebrovascular of ROI symbol (cross) is relevant.As described above, according to the present embodiment, ROI is automatically overlapped in each radioscopy image to show.
Figure 10 is illustrated as one the coronarogram picture (hereinafter referred to as CAG image) obtained by X-ray vasography.In CAG image, because the ray absorption of the X-ray of contrast agent is large, therefore, it is possible to the degree can distinguishing shape coronarius and other tissue in by process coronarius, identification contrast.
As shown in Figure 10, carry out operation conduit 101 being inserted into coronary artery 102, and in this position, inject contrast agent by conduit 101 certain time.At least contain from contrast agent inject before to contrast agent inject terminate after during the stipulated time, carry out X-ray shooting.
When contrast agent injects coronary artery via conduit 101, collect radioscopic image by the radiographic apparatus of Fig. 1.If image collection terminates, then by image operation/storage part 10, according to above-mentioned algorithm, the position on the angiosomes being benchmark with conduit 101 automatically sets ROI103.Such as, ROI103 is set in the reference area coronarius (blood supply of cardiac muscle region) 103 on CAG image.In addition, in order to benchmark region, cardiac muscle sets at least one regional myocardial region 104.
The pixel value of multiple pixels that image operation/storage part 10 comprises according to blood supply of cardiac muscle region 103, generates the time-concentration curve (Time Densitycurve:TDC) relevant to blood supply of cardiac muscle region 103.Similarly, the pixel value of multiple pixels that image operation/storage part 10 comprises according to regional myocardial region 104, generates the time-concentration curve relevant to regional myocardial region.
Regional myocardial region 104 is set on myocardial region, usually has multiple pixel.The concentration being equivalent to the radiography dosage in regional myocardial region 104 calculates usually used as pixel average.But regional myocardial region 104 also can be the region with single pixel.Blood supply of cardiac muscle region 103 typically has the rectangular shape possessing the width roughly equivalent with blood vessel or slightly little width, and along blood vessel be set as arbitrarily towards, and comprise multiple pixel.As the concentration of radiography dosage being equivalent to blood supply of cardiac muscle region 103, calculate usually used as pixel average.Blood supply of cardiac muscle region 103 is set in the arbitrary part of the stream between syringe 15 and myocardium region-of-interest, if limited further, then be set in the arbitrary part of conduit, or the arbitrary part that the outlet of conduit (being equivalent to coronary artery entrance) and cardiac muscle are noted between region.The ROI of such setting, such as shown in Figure 11 or 12, is presented on CAG image.In fig. 11, ROI is set as the region of rectangle.In fig. 12, ROI is set as the region of the polyhedral shapes with certain area.
Figure 13 is the figure of the example representing display part 11 or the time-concentration curve shown by user interface 14.This time-concentration curve is the figure concentration change along with time process being injected into contrast agent coronarius being carried out pictorialization, is calculated by image operation/storage part 10.In addition, also can by the concentration dependent TTP(time to peak with contrast agent) value pictorialization, also can using blood flow informations such as the mean transit times of blood flow, blood flow volume or blood as index pictorialization.In addition, also the Two dimensional Distribution of the desired value representing the blood flow (perfusion) of cardiac muscular tissue can be processed as blood flow information.
The comparison other region of the blood flow information of reference area (blood supply of cardiac muscle region) 103 has more than the regional myocardial region 104 being defined as and being set in myocardial region.Such as, as comparison other region, as shown in figure 14, the regional area 106 be set on the angiosomes 102 of the distant side of distance reference area 103 can be also set as.Comparison other region 106 utilizes present embodiment to relate to ROI set algorithm to set.Below, the setting for comparison other region 106 is described.First, image operation/storage part 10 as described above, at the position setting reference area 103 along the centrage of angiosomes 102 from the closer distance of the end points of conduit 101, and in the setting comparison other region 106, position along the centrage of angiosomes 102 from the distant distance of the end points of conduit 101.Image operation/storage part 10 is respectively for blood flow informations such as reference area 103 and comparison other region 106 concentration curves computation time.The time-concentration curve corresponding with reference area 103 and the time-concentration curve corresponding with comparison other region 106 are such as shown by display part 11 or user interface 14.Operator by the time-concentration curve corresponding with reference area 103 and the time-concentration curve corresponding with comparison other region 106 being compared, thus easily can understand coronary artery.
Figure 15 represents the figure by display part 11 or the display of user interface 14 overlap, the time-concentration curve corresponding with reference area 103 and the time-concentration curve corresponding with comparison other region 106.In addition, be set between the reference area 103 involved by Figure 15 and comparison other region 106, have narrow positions.Now, the peak value Pe2 of corresponding with the comparison other region 106 in the downstream of narrow positions time-concentration curve have and the time-concentration curve corresponding with the reference area 103 of the upstream side of narrow positions peak value Pe1 compared with the tendency of remarkable step-down.In addition, the interval of the peak value due in te2 of corresponding with comparison other region 106 time-concentration curve and the peak value due in te1 of the time-concentration curve corresponding with reference area 103 broadens compared with the situation of the normal person of health.User easily finds the blood flow anomalies caused by such narrow positions by the observation time-concentration curve corresponding with reference area 103 and the time-concentration curve corresponding with comparison other region 106.
As described above, according to embodiment, determine the ROI of the side that distance conduit is near in blood vessel, and also determine vessel centerline.That is, by the process of system side, just ROI can need not be set by specifying based on the manual operation of operator.According to the present embodiment, due to automatically ROI can be detected, therefore, if using detecting that the situation of ROI is supplied to software as triggering signal, then automatically various process can be carried out.In addition, according to the present embodiment, the curve becoming benchmark in multiple time-concentration curve can be determined.
Such as, the time-concentration curve information in other the ROI on blood vessel can be measured for benchmark with the ROI of the near side of distance conduit.That is, can automatically measure for other ROI the time delay or amplitude minimizing degree counted from the benchmark ROI that distance conduit is nearest.In addition, measurement result image or blood vessel chart can also be shown.
As described above, the radiographic apparatus involved by present embodiment and image processing apparatus have image operation/storage part 10.Image operation/storage part 10 has storage part, determination portion, extraction unit and configuration part.Storage part stores and does not carry out the 1st perspective image data of radiography and the 2nd perspective image data by having been carried out radiography to blood vessel to the contrast agent of subject by input to the blood vessel of subject.Determination portion is carried out image procossing to the 1st perspective image data and determines the catheter area that the 1st fluoroscopy images comprises.Extraction unit is carried out image procossing to the 2nd perspective image data and is extracted the angiosomes that the 2nd fluoroscopy images comprises.Configuration part sets Region Of Interest according to the position of the end points of catheter area at angiosomes.
More specifically, the X-ray image data after image operation/storage part 10 uses the preflood X-ray image data of contrast agent and contrast agent to inject, from preflood image data extraction catheter area, and from the image data extraction angiosomes after injection.Then, image operation/storage part 10 carries out Thinning process for catheter area and angiosomes respectively, and calculates the end of catheter area and the centrage of angiosomes.Further, the coordinate of image operation/storage part 10 on the angiosomes of the certain distance in the end along distance between center line catheter area sets ROI.
In addition, in the above-described embodiment, the setting that make use of the ROI coronary artery of heart having been thrown in the image of contrast agent is shown.But present embodiment is not limited thereto.That is, present embodiment also can be applicable to cerebral angiography or abdominal organs radiography etc., all general contrast examinations employing conduit.According to the present embodiment, owing to automatically can set ROI to the blood vessel at all positions in body, being not only heart therefore, it is possible to obtain, can also be the time-concentration curve to the contrast agent that all blood vessels in body are thrown in.
Like this, according to the present embodiment, a kind of image processing apparatus and radiographic apparatus of automatization of setting of Region Of Interest when realizing catheter manipulation can be provided.
In addition, in the above description, the handling object image being set to image processing apparatus is the radioscopic image occurred by radiographic apparatus.But present embodiment is not limited thereto.The handling object image of the image processing apparatus involved by present embodiment also can be the CT image occurred by X-ray computed tomograohy apparatus or the MRI image occurred by MR imaging apparatus.
Although the description of several embodiment of the present invention, but these embodiments are pointed out as an example, is not intended to limit scope of the present invention.These embodiments can be implemented with other various forms, in the scope of main idea not departing from invention, can carry out various omissions, displacement, change.These embodiments or its distortion are contained in scope of invention or main idea, and are contained in the invention of claims record and the scope of equalization thereof.
Accompanying drawing explanation
Fig. 1 is the figure of the structure of the radiographic apparatus represented involved by present embodiment.
Fig. 2 is the flow chart of the basic treatment step represented in present embodiment.
Fig. 3 is the flow chart of the more detailed treatment step represented in present embodiment.
Fig. 4 is the figure of an example of the set model of the Region Of Interest of the image operation/storage part setting represented by Fig. 1.
Fig. 5 is the figure of another example of the set model of the Region Of Interest of the image operation/storage part setting represented by Fig. 1.
Fig. 6 is the figure of another example of the set model of the Region Of Interest of the image operation/storage part setting represented by Fig. 1.
Fig. 7 is the figure of another example of the set model of the Region Of Interest of the image operation/storage part setting represented by Fig. 1.
Fig. 8 is the figure of another example of the set model of the Region Of Interest of the image operation/storage part setting represented by Fig. 1.
Fig. 9 A be represent by the display part of Fig. 1 or user interface display, with the overlapping figure having the radioscopic image that the right coronary artery of the symbol (cross) representing ROI is relevant.
Fig. 9 B be represent by the display part of Fig. 1 or user interface display, with overlapping another figure having the radioscopic image that the right coronary artery of the symbol (cross) representing ROI is relevant.
Fig. 9 C be represent by the display part of Fig. 1 or user interface display, with the overlapping figure having the radioscopic image that the left coronary artery of the symbol (cross) representing ROI is relevant.
Fig. 9 D be represent by the display part of Fig. 1 or user interface display, with overlapping another figure having the radioscopic image that the left coronary artery of the symbol (cross) representing ROI is relevant.
Fig. 9 E be represent by the display part of Fig. 1 or user interface display, with the overlapping figure having the radioscopic image that the coronarius netted view (spider view) of the symbol (cross) representing ROI is relevant.
Fig. 9 F be represent by the display part of Fig. 1 or user interface display, with the overlapping figure having the radioscopic image that the cerebrovascular of the symbol (cross) representing ROI is relevant.
Figure 10 represents the ROI(reference area set involved by present embodiment) with regional myocardial region, the figure of coronarogram picture that obtained by X-ray vasography.
Figure 11 is the figure of the image of the coronarography representing involved by present embodiment, set the ROI of rectangular shape.
Figure 12 is the figure representing involved by present embodiment, set the coronarogram picture of polygonal ROI.
Figure 13 is the figure of the example representing the time-concentration curve gone out shown by display part involved by present embodiment or user interface.
Figure 14 represents the ROI(reference area set involved by present embodiment) with comparison other region, the figure of coronarogram picture that obtained by X-ray vasography.
Figure 15 be represent by the display part of Fig. 1 or the display of user interface overlap, the figure of the time-concentration curve corresponding with reference area and the time-concentration curve corresponding with comparison other region.
(symbol description)
1... high voltage generating unit, 2...X ray generating unit, 3... subject, 4... bed, 5...X ray detection portion, 6... supporting device, 7...C arc, 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
Claims (12)
1. an image processing apparatus, is characterized in that, possesses:
Storage part, store not to the blood vessel of subject carry out radiography the 1st perspective image data, with by being thrown in the 2nd perspective image data of to the contrast agent of above-mentioned subject, above-mentioned blood vessel having been carried out to radiography;
Determination portion, carries out image procossing by above-mentioned 1st perspective image data and determines the catheter area that above-mentioned 1st fluoroscopy images comprises;
Extraction unit, carries out image procossing by above-mentioned 2nd fluoro data and extracts the angiosomes that above-mentioned 2nd fluoroscopy images comprises;
Configuration part, the setting Region Of Interest, position on the above-mentioned angiosomes of the distance certain from the end points of above-mentioned catheter area along the centrage of above-mentioned angiosomes; And
Display part, is presented at least one party in above-mentioned 1st fluoroscopy images and above-mentioned 2nd fluoroscopy images by least one Overlapping Symbol corresponding with the Region Of Interest of above-mentioned setting.
2. image processing apparatus according to claim 1, is characterized in that,
Also possess calculating part, calculate the blood flow information relevant to the Region Of Interest of above-mentioned setting.
3. image processing apparatus according to claim 2, is characterized in that,
Above-mentioned blood flow information is thrown in the time-concentration curve of the contrast agent of blood vessel.
4. image processing apparatus according to claim 3, is characterized in that,
Above-mentioned blood vessel is coronary artery.
5. image processing apparatus according to claim 2, is characterized in that,
Above-mentioned configuration part sets multiple Region Of Interest at above-mentioned angiosomes,
Above-mentioned calculating part calculates the multiple blood flow informations corresponding respectively with multiple Region Of Interest of above-mentioned setting.
6. image processing apparatus according to claim 2, is characterized in that,
Above-mentioned calculating part with the above-mentioned Region Of Interest set as benchmark is to calculate the blood flow information in other regions.
7. a radiographic apparatus, is characterized in that, possesses:
, there is X-ray in X-ray tube;
X-ray detector, detects and to occur and through the X-ray of subject from above-mentioned X-ray tube;
Image generating unit, according to the output data from above-mentioned X-ray detector, occur not carry out the 1st perspective image data of radiography and the 2nd perspective image data by having been carried out radiography to above-mentioned blood vessel to the contrast agent of above-mentioned subject by input to the blood vessel of subject;
Determination portion, carries out image procossing to above-mentioned 1st perspective image data and determines the catheter area that above-mentioned 1st fluoroscopy images comprises;
Extraction unit, carries out image procossing to above-mentioned 2nd perspective image data and extracts the angiosomes that above-mentioned 2nd fluoroscopy images comprises;
Configuration part, at the centrage along above-mentioned angiosomes with a certain distance from the setting Region Of Interest, position on the above-mentioned angiosomes of the end points of above-mentioned catheter area; And
Display part, is presented at least one party in above-mentioned 1st fluoroscopy images and above-mentioned 2nd fluoroscopy images by least one Overlapping Symbol corresponding with the Region Of Interest of above-mentioned setting.
8. radiographic apparatus according to claim 7, is characterized in that,
Also possess calculating part, calculate the blood flow information relevant to the Region Of Interest of above-mentioned setting.
9. radiographic apparatus according to claim 8, is characterized in that,
Above-mentioned blood flow information is thrown in the time-concentration curve of the contrast agent of blood vessel.
10. radiographic apparatus according to claim 9, is characterized in that,
Above-mentioned blood vessel is coronary artery.
11. radiographic apparatus according to claim 8, is characterized in that,
Above-mentioned configuration part sets multiple Region Of Interest at above-mentioned angiosomes,
Above-mentioned calculating part calculates the multiple blood flow informations corresponding respectively with multiple Region Of Interest of above-mentioned setting.
12. radiographic apparatus according to claim 8, is characterized in that,
Above-mentioned calculating part with the above-mentioned Region Of Interest set as benchmark is to calculate the blood flow information in other regions.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/117,578 | 2011-05-27 | ||
| US13/117,578 US9259199B2 (en) | 2011-05-27 | 2011-05-27 | Image processing apparatus and X-ray diagnosis apparatus |
| JP2012096445A JP6013012B2 (en) | 2011-05-27 | 2012-04-20 | Image processing apparatus and X-ray diagnostic apparatus |
| JP2012-096445 | 2012-04-20 |
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| JP6472606B2 (en) * | 2014-05-15 | 2019-02-20 | キヤノンメディカルシステムズ株式会社 | X-ray diagnostic equipment |
| JPWO2016052289A1 (en) * | 2014-10-03 | 2017-07-13 | 株式会社日立製作所 | X-ray fluoroscopy apparatus and X-ray irradiation condition setting method |
| JP6929689B2 (en) * | 2016-04-26 | 2021-09-01 | キヤノンメディカルシステムズ株式会社 | Medical image processing equipment and medical diagnostic imaging equipment |
| JP6812815B2 (en) * | 2017-01-31 | 2021-01-13 | 株式会社島津製作所 | X-ray imaging device and X-ray image analysis method |
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