CN107569250A - Dual energy CT image processing method, device and image processing equipment - Google Patents
Dual energy CT image processing method, device and image processing equipment Download PDFInfo
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Abstract
The application provides a kind of dual energy CT image processing method, device and image processing equipment, and this method includes：Dual energy CT enhancing scanning is carried out to tested tissue, obtains the tested high-energy image sequence and low energy image sequence being organized under not same period phase；To in the high-energy image sequence and the low energy image sequence, section imaging of the same section under not same period phase is handled, and obtains standardization iodine concentration figure of each section under not same period phase；Standardization iodine concentration figure of the same section that output handles to obtain under not same period phase.Using this method, the efficiency that tumor examination and qualitative analysis are carried out to being detected tissue can be improved, meanwhile, realize and tumor examination and qualitative analysis comprehensively more are carried out to tested tissue.
Description
Technical field
The application be related to CT technical field of image processing, more particularly to a kind of dual energy CT image processing method, device with
And image processing equipment.
Background technology
At present, the incidence of disease of tumour rises year by year, clinically has for the therapeutic scheme of benign tumour and malignant tumour
Significant difference, so that the positioning to tumour is detected and qualitative analysis is particularly important.There are some researches show to human body row vein
After injection of contrast agent (main component is the iodine of ionic state), it can be obtained by carrying out quantitative analysis to the content of iodine of tissue
Go out with the presence or absence of the higher region of iodine degree is taken the photograph in tissue, with this determination knub position, and qualitative analysis is carried out to tumour.
In the prior art, based on to tested tissue progress dual energy CT (Computed Tomography, electronic computer
Tomoscan) strengthen the CT images that scanning obtains, using the normalized method of iodine concentration, returning for tested tissue can be calculated
One changes contrast iodine concentration, and normalization contrast iodine concentration can measure the iodine concentration measured in focus and identical layer simultaneously is interested
The ratio of the iodine concentration measured in region, to aid in doctor to carry out tumor examination and qualitative analysis to tested tissue.It is however, existing
Doctor is needed to preset area-of-interest in technology, and doctor also needs to carry out further according to normalization contrast iodine concentration
Quantitative analysis, can just realize tumour detect and qualitative analysis, therefore cause doctor to carry out tumor examination to tested tissue
It is less efficient with qualitative analysis；Meanwhile single normalization contrasts iodine concentration and doctor can not be aided in carry out tested tissue
Comprehensive tumor examination and qualitative analysis.
The content of the invention
In view of this, the application provides a kind of dual energy CT image processing method, device and image processing equipment, to carry
The high efficiency that tumor examination and qualitative analysis are carried out to being detected tissue, meanwhile, realize and more comprehensively tested tissue is swollen
Knurl is detected and qualitative analysis.
Specifically, the application is achieved by the following technical solution：
According to the first aspect of the embodiment of the present application, there is provided a kind of dual energy CT image processing method, methods described include：
Dual energy CT enhancing scanning is carried out to tested tissue, obtains the tested high energy spirogram being organized under not same period phase
As sequence and low energy image sequence；
To in the high-energy image sequence and the low energy image sequence, section of the same section under not same period phase
Imaging is handled as follows, wherein, the section imaging includes high-energy image and low energy image：
Based on high-energy image and low energy image, artery of the artery in the section under not same period phase is calculated
Iodine concentration；And region iodine concentration of each pixel under not same period phase in the section imaging is calculated；
According to the artery iodine concentration and the region iodine concentration, each pixel in the section imaging is calculated
Standardization iodine concentration of the point under not same period phase；
Standardization iodine concentration of each pixel under not same period phase in being imaged according to the section, cut described in generation
Standardization iodine concentration figure of the face under not same period phase；
Standardization iodine concentration figure of the same section that output handles to obtain under not same period phase.
According to the second aspect of the embodiment of the present application, there is provided a kind of dual energy CT image processing apparatus, described device include：
Scanning element, for carrying out dual energy CT enhancing scanning to tested tissue, obtain described be detected and be organized in the not same period
High-energy image sequence and low energy image sequence under phase；
Graphics processing unit, in the high-energy image sequence and the low energy image sequence, same section
Section imaging under not same period phase is handled as follows, wherein, the section imaging includes high-energy image and low energy spirogram
Picture：
Based on high-energy image and low energy image, artery of the artery in the section under not same period phase is calculated
Iodine concentration；And region iodine concentration of each pixel under not same period phase in the section imaging is calculated；
According to the artery iodine concentration and the region iodine concentration, each pixel in the section imaging is calculated
Standardization iodine concentration of the point under not same period phase；
Standardization iodine concentration of each pixel under not same period phase in being imaged according to the section, cut described in generation
Standardization iodine concentration figure of the face under not same period phase；
First output unit, standardization iodine concentration figure of the same section for handling to obtain for output under not same period phase.
According to the third aspect of the embodiment of the present application, there is provided a kind of image processing equipment, including：Internal bus, Yi Jitong
Cross memory, the processor of internal bus connection；Wherein,
The memory, for storing machine readable instructions corresponding to the control logic of dual energy CT image procossing；
The processor, for reading the machine readable instructions on the memory, and the instruction is performed with reality
Now following operation：
Dual energy CT enhancing scanning is carried out to tested tissue, obtains the tested high energy spirogram being organized under not same period phase
As sequence and low energy image sequence；
To in the high-energy image sequence and the low energy image sequence, section of the same section under not same period phase
Imaging is handled as follows, wherein, the section imaging includes high-energy image and low energy image：
Based on high-energy image and low energy image, artery of the artery in the section under not same period phase is calculated
Iodine concentration；And region iodine concentration of each pixel under not same period phase in the section imaging is calculated；
According to the artery iodine concentration and the region iodine concentration, each pixel in the section imaging is calculated
Standardization iodine concentration of the point under not same period phase；
Standardization iodine concentration of each pixel under not same period phase in being imaged according to the section, cut described in generation
Standardization iodine concentration figure of the face under not same period phase；
Standardization iodine concentration figure of the same section that output handles to obtain under not same period phase.
Using the embodiment of the present application, by carrying out dual energy CT enhancing scanning to tested tissue, tested be organized in not is obtained
High-energy image sequence under same period phase and low energy image sequence, in high-energy image sequence and low energy image sequence,
High-energy image of the same section under not same period phase is handled with low energy image, obtains each section under not same period phase
Standardization iodine concentration figure, and standardization iodine concentration figure of the same section under not same period phase is exported, to aid in doctor intuitively
The same tissue site of paired observation takes the photograph iodine degree under not same period phase, and tumor examination is carried out with determining to tested tissue so as to improve
Property analysis efficiency, meanwhile, realize and tumor examination and qualitative analysis comprehensively more carried out to tested tissue.
Brief description of the drawings
Fig. 1 is one embodiment flow chart of the application dual energy CT image processing method；
Fig. 2 is another embodiment flow chart of the application dual energy CT image processing method；
Fig. 3 is an illustrative diagram of display interface on image processing equipment；
Fig. 4 is the another exemplary schematic diagram of display interface on image processing equipment；
Fig. 5 is a kind of hardware structure diagram of image processing equipment where the application dual energy CT image processing apparatus；
Fig. 6 is one embodiment block diagram of the application dual energy CT image processing apparatus；
Fig. 7 is the embodiment schematic diagram of the application image processing equipment.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the application.
It is only merely for the purpose of description specific embodiment in term used in this application, and is not intended to be limiting the application.
" one kind " of singulative used in the application and appended claims, " described " and "the" are also intended to including majority
Form, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refers to and wrapped
Containing the associated list items purpose of one or more, any or all may be combined.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application
A little information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, do not departing from
In the case of the application scope, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determining ".
Research shows that the grade malignancy of the tumor vascular speed of growth and tumour is closely related, wherein, tumor vascular life
Long speed is rapider, and it is higher to lead oncogenic grade malignancy, meanwhile, the tumor vascular speed of growth is rapider, tumor vascular
Density is higher, then, when enhancing scanning is carried out to tumour, the contrast medium concentrations measured are also higher, it is generally the case that contrast
The main component of agent is the iodine of ionic state, and based on this, doctor can be injected intravenously to subject and contrast during routine diagnosis
Agent, it is higher with the presence or absence of iodine degree is taken the photograph in tested tissue to observe by carrying out quantitative analysis to the content of iodine being detected in tissue
Region, with this determination knub position, and to tumour carry out qualitative analysis.
In the prior art, the normalized method of iodine concentration can be used, the normalization contrast of tested tissue is calculated
Iodine concentration, normalization contrast iodine concentration are the iodine concentration measured in focus and the iodine measured simultaneously in identical layer area-of-interest
The ratio of concentration, normalization contrast iodine concentration can aid in doctor to carry out tumor examination and qualitative analysis to tested tissue.
However, in the prior art, it is necessary to which doctor presets area-of-interest, and doctor is also needed to according to normalization
Contrast iodine concentration and carry out further quantitative analysis, can just realize tumour detect and qualitative analysis, therefore cause doctor couple
Tested tissue carries out the less efficient of tumor examination and qualitative analysis；Meanwhile single normalization contrast iodine concentration and can not be auxiliary
Doctor is helped to carry out comprehensive tumor examination and qualitative analysis to tested tissue.
In order to solve the above problems, the application provides a kind of dual energy CT image processing method, device and image procossing
Equipment, to improve the efficiency that tumor examination and qualitative analysis are carried out to being detected tissue, meanwhile, realize more comprehensively to being detected group
Knit and carry out tumor examination and analysis.
Illustrate first, in this application, using iodine concentration this concept is standardized, the concept is researchers in order to accurate
Content of iodine in the tested tissue of ground analysis is introduced, so-called standardization iodine concentration be the iodine concentration that is measured in focus with simultaneously
The ratio for the iodine concentration that identical layer intra-arterial measures, it can be represented with equation below：
It should be noted that it is different according to the lesions position to be observed, in above-mentioned standard iodine concentration calculation formula
Denominator is also different, for example, when to observe in neck squamous cell metastasis of cancer lymph node differentiation degree, standardizes iodine concentration
Calculation formula is then：
As follows, the dual energy CT image processing method provided the application illustrates：
Fig. 1 is referred to, is one embodiment flow chart of the application dual energy CT image processing method, this method can answer
For image processing equipment, this method may comprise steps of：
Step 101：Dual energy CT enhancing scanning is carried out to tested tissue, obtains the tested high energy being organized under not same period phase
Measure image sequence and low energy image sequence.
Research shows that the tested imaging being organized under not same period phase possesses different Detection capabilities to tumour, then, if only
Tumor examination is carried out according to the tested imaging being organized under a phase phase and qualitative analysis, the result drawn are likely to and forbidden
Really, based on this, the application proposes, under not same period phase, dual energy CT enhancing scanning is carried out to tested tissue, obtains tested tissue
High-energy image sequence and low energy image sequence under not same period phase.
In one embodiment, dual energy CT enhancing scanning can be carried out to tested tissue in arterial phase and venous phase respectively,
The tested high-energy image sequence and low energy image sequence being organized under arterial phase is obtained, and is detected and is organized under venous phase
High-energy image sequence and low energy image sequence.
Step 102：To in high-energy image sequence and low energy image sequence, section of the same section under not same period phase
Imaging is handled, and generates standardization iodine concentration figure of each section under not same period phase, wherein, section imaging includes high-energy
Image and low energy image.
In the application, in the high-energy image sequence and low energy image sequence that are obtained in step 101, same section exists
The section imaging under same period phase does not carry out identical processing, and " section imaging " mentioned here includes high-energy image and low energy
Spirogram picture, ultimately generate standardization iodine concentration figure of each section under not same period phase.
Specifically, using high-energy image of one of section under not same period phase and low energy image are carried out processing as
Example, as shown in Fig. 2 being another embodiment flow chart of the application dual energy CT image processing method, can include following step
Suddenly：
Step 201：Based on high-energy image and low energy image, the artery in section is calculated under not same period phase
Artery iodine concentration；And region iodine concentration of each pixel under not same period phase in the imaging of section is calculated.
Step 202：According to artery iodine concentration and region iodine concentration, each pixel being calculated in the imaging of section exists
The not standardization iodine concentration under same period phase.
Step 203：Standardization iodine concentration of each pixel under not same period phase in being imaged according to section, generation are cut
Standardization iodine concentration figure of the face under not same period phase.
In step 201, first, to " being based on high-energy image and low energy image, the artery being calculated in section exists
This process of the not artery iodine concentration under same period phase " is described：
First, arteriosomes is determined in high-energy image and low energy image, afterwards, based in the high-energy image
Arteriosomes in arteriosomes, with the low energy image, iodine concentration of the artery in section under not same period phase is calculated,
For convenience, in the application, iodine concentration of the artery in the section under not same period phase is referred to as artery iodine concentration.Specifically
It is that artery iodine concentration how is calculated, those skilled in the art may refer to associated description of the prior art, the application
This is not described further.
In one embodiment, because high-energy image and low energy image are that tested tissue is carried out by dual energy CT equipment
Single pass obtains, so as to which the same position of high-energy image and low energy image corresponds to identical tissue site.So, then may be used
Arteriosomes is wherein determined in high-energy image and low energy image with elder generation on piece image, afterwards, according to identified
Arteriosomes, then the same area on another piece image is also defined as arteriosomes, handled, can be improved in height by this kind
Energy diagram picture and the efficiency that arteriosomes is determined in low energy image.
In an optional implementation, it can be instructed according to the mark of user, first in high-energy image and low energy
Arteriosomes is wherein determined on piece image in spirogram picture, afterwards, based on the arteriosomes of determination on another piece image really
Determine arteriosomes.
, can be according to preset algorithm, such as the region point of joint C-V model boundaries in another optional implementation
Algorithm is cut, arteriosomes is wherein determined on piece image first in high-energy image and low energy image, afterwards, based on true
Fixed arteriosomes determines arteriosomes on another piece image.
Secondly, to " being based on high-energy image and low energy image, each pixel being calculated in the imaging of section exists
This process of the not region iodine concentration under same period phase " is described：
, can be with picture in order to aid in user to carry out comprehensive tumor examination and qualitative analysis to tested tissue in the application
Vegetarian refreshments is unit, obtains iodine concentration of each pixel in the imaging of section under not same period phase, for convenience, this Shen
Please in, iodine concentration of the pixel under not same period phase is referred to as region iodine concentration.
For example, it is assumed that section imaging includes 256 pixels, the size of each pixel is 1.0mm*1.0mm, i.e., high
Energy diagram picture is with each including the pixel that 256 sizes are 1.0mm*1.0mm in low energy image, then, can in the application
So that based on high-energy image and low energy image, region iodine of each pixel under arterial phase in the imaging of section is calculated
Concentration, that is, obtain the region iodine concentration under the different phase phases of each leisure of 256 pixels.It is dense that region iodine specifically how is calculated
Degree, those skilled in the art may refer to associated description of the prior art, and the application is not described further to this.
In step 202, the calculation based on above-mentioned described standardization iodine concentration, can be obtained in the imaging of section
Standardization iodine concentration of each pixel under not same period phase, such as：By taking venous phase as an example, section imaging in each
Pixel is under venous phase
In step 203, standardization iodine that can be by the pixel of each in being imaged to section under not same period phase
Concentration carries out Pseudo-color technology, obtains standardization iodine concentration figure of the section under not same period phase.
In one embodiment, the corresponding relation of standardization iodine concentration and color value can be pre-set, according to the corresponding pass
System, standardization iodine concentration of each pixel under not same period phase in being imaged to section carry out Pseudo-color technology, obtain section
Standardization iodine concentration figure under not same period phase.In the standardization iodine concentration figure, different colours represent different standardization iodine
Concentration, so as to which, doctor is by the standardization iodine concentration figure, can be visually observed that each region of tested tissue takes the photograph iodine degree,
The blood supply situation in each region of tested tissue can be visually known, so as to take the photograph iodine journey according to tested each region of tissue
Degree, blood supply situation carry out tumor examination and qualitative analysis.
Step 103：Standardization iodine concentration figure of the same section that output handles to obtain under not same period phase.
In the application, standardization iodine concentration figure of the same section under not same period phase can be exported.Pass through this kind of processing side
Formula, same section can be contrasted in order to doctor and takes the photograph iodine degree under not same period phase, is considered according to comparing result, from
And realize auxiliary doctor and carry out the purpose of tumor examination and qualitative analysis to being detected tissue exactly.
In one embodiment, on the display interface of image processing equipment, it can once show a section in the not same period
Standardization iodine concentration figure under phase, it can also once show standardization iodine concentration of the two or more section under not same period phase
Figure, the application are not restricted to the quantity of specific shown standardization iodine concentration figure.
In an optional implementation, can the preset Fault Sequence number in the system of image processing equipment in advance,
So, image processing equipment can show mark of the section under not same period phase corresponding to the Fault Sequence number on display interface
Standardization iodine concentration figure.
In another optional implementation, assigned serial number can be inputted by user, then, image processing equipment can
To receive the assigned serial number of user's input, so as to show the section corresponding to the assigned serial number not on display interface
Standardization iodine concentration figure under same period phase.
In addition, in this application, dual energy CT enhancing scanning is being carried out to tested tissue, is obtaining tested being organized in the not same period
After high-energy image sequence and low energy image sequence under phase, high-energy image and low energy image can also be shown, is had
Body, image processing equipment can receive the assigned serial number of user's input and specified phase phase, for convenience, in the application
The assigned serial number is referred to as the first assigned serial number, specifies the phase to be mutually referred to as first this and specifies phase phase, and then, image procossing is set
It is standby shown on display interface section corresponding to first assigned serial number first specify high-energy image under phase phase with it is low
Energy diagram picture.
In a preferable implementation, image processing equipment can show the first specified sequence simultaneously on display interface
High-energy image under phase phase, low energy image, and first assigned serial number pair are specified first in section corresponding to row number
Standardization iodine concentration figure of the section answered under not same period phase, for example, as shown in figure 3, being display interface on image processing equipment
An illustrative diagram.
Handled by this kind, be not only convenient for the same section of doctor's paired observation and take the photograph iodine degree under not same period phase, also just
Yu doctor is analyzed according to the original CT image that scanning obtains, and is considered according to comparing result, so as to aid in
Doctor carries out tumor examination and qualitative analysis to tested tissue exactly.
It should be noted that foregoing description is only a kind of preferable implementation, in actual applications, on display interface
Shown standardization iodine concentration figure can also be different from the section corresponding to high-energy image, low energy image, the application couple
This is not restricted.
In addition, in this application, dual energy CT enhancing scanning is being carried out to tested tissue, is obtaining tested being organized in the not same period
, can also be according to the high-energy image sequence and low energy spirogram after high-energy image sequence and low energy image sequence under phase
As sequence, the fusion energy image sequence under not same period phase is calculated, fusion energy diagram specifically how is calculated as sequence
Row, those skilled in the art may refer to associated description of the prior art, will not be described in detail herein, and afterwards, image procossing is set
It is standby that fusion energy diagram picture can be shown on display interface.Specifically, image processing equipment can receive specifying for user's input
Sequence number and specified phase phase, for convenience, are referred to as the second assigned serial number by the assigned serial number in the application, this are referred to
Periodically mutually it is referred to as second and specifies phase phase, and then, image processing equipment shows that second assigned serial number is corresponding on display interface
Section specify phase phase second under fusion energy diagram picture.
In a preferable implementation, image display can show the second specified sequence simultaneously on display interface
High-energy image under phase phase, low energy image are specified in section corresponding to row number second, merge energy diagram picture, and this second
Standardization iodine concentration figure of the section corresponding to assigned serial number under not same period phase.
It should be noted that foregoing description is only a kind of preferable implementation, in actual applications, on display interface
Shown standardization iodine concentration figure and high-energy image, low energy image, merge section of the energy diagram as corresponding to can also
Difference, the application are not restricted to this.
In addition, in this application, the standardization iodine concentration for calculating area-of-interest under not same period phase can also be realized,
In one preferable implementation, doctor can be any to select high-energy image or low in the display interface exemplified by Fig. 3
Wherein piece image in energy diagram picture, marks area-of-interest in the image of the selection, and image processing equipment can be automatic
Realize and also mark out by area-of-interest on another piece image, and mark of the area-of-interest under not same period phase is calculated
Standardization iodine concentration, further, image processing equipment show standard of the area-of-interest under not same period phase on display interface
Change iodine concentration, for example, as shown in figure 4, another exemplary schematic diagram for display interface on image processing equipment.
Using the embodiment of the present application, by carrying out dual energy CT enhancing scanning to tested tissue, tested be organized in not is obtained
High-energy image sequence under same period phase and low energy image sequence, in high-energy image sequence and low energy image sequence,
High-energy image of the same section under not same period phase is handled with low energy image, obtains each section under not same period phase
Standardization iodine concentration figure, and standardization iodine concentration figure of the same section under not same period phase is exported, to aid in doctor intuitively
The same tissue site of paired observation takes the photograph iodine degree under not same period phase, and tumor examination is carried out with determining to tested tissue so as to improve
Property analysis efficiency, meanwhile, realize and tumor examination and qualitative analysis comprehensively more carried out to tested tissue.
It is corresponding with the embodiment of foregoing dual energy CT image processing method, at dual energy CT image
Manage the embodiment of device.
The embodiment of the application dual energy CT image processing apparatus can be applied on image processing equipment.Device embodiment
It can be realized, can also be realized by way of hardware or software and hardware combining by software.Exemplified by implemented in software, as one
Device on individual logical meaning, it is by corresponding meter in nonvolatile memory by the processor of image processing equipment where it
Calculation machine programmed instruction reads what operation in internal memory was formed.For hardware view, as shown in figure 5, being the application dual energy CT
A kind of hardware structure diagram of image processing equipment where image processing apparatus, except the processor 51 shown in Fig. 5, internal memory 52, net
Outside network interface 53 and nonvolatile memory 54, the image processing equipment in embodiment where device is generally according to the figure
As the actual functional capability of processing equipment, other hardware can also be included, this is repeated no more.
Fig. 6 is refer to, is one embodiment block diagram of the application dual energy CT image processing apparatus, the device can wrap
Include：Scanning element 610, graphics processing unit 620, output unit 630.
Wherein, scanning element 610, it can be used for carrying out tested tissue dual energy CT enhancing scanning, obtain described tested
The high-energy image sequence and low energy image sequence being organized under not same period phase；
Graphics processing unit 620, it can be used in the high-energy image sequence and the low energy image sequence, together
Section imaging of one section under not same period phase is handled as follows, wherein, section imaging includes high-energy image and low
Energy diagram picture：
Based on high-energy image and low energy image, artery of the artery in the section under not same period phase is calculated
Iodine concentration；And region iodine concentration of each pixel under not same period phase in the section imaging is calculated；
According to the artery iodine concentration and the region iodine concentration, each pixel in the section imaging is calculated
Standardization iodine concentration of the point under not same period phase；
Standardization iodine concentration of each pixel under not same period phase in being imaged according to the section, cut described in generation
Standardization iodine concentration figure of the face under not same period phase；
First output unit 630, it can be used for the standardization iodine of same section that output handles to obtain under not same period phase
Concentration map.
In one embodiment, described image processing unit 620 can include (not showed that in Fig. 6)：
Arteriosomes determination subelement, for determining arteriosomes in high-energy image and low energy image；
First computation subunit, for based on the arteriosomes in the high-energy image, and in the low energy image
Arteriosomes, artery iodine concentration of the artery in the section under not same period phase is calculated.
In one embodiment, the arteriosomes determination subelement can be specifically used for：
Instructed according to the mark of user, arteriosomes is determined in high-energy image and low energy image；Or according to pre-
Imputation method, arteriosomes is determined in high-energy image and low energy image.
In one embodiment, described image processing unit 620 can include (not showed that in Fig. 6)：
Subelement is generated, it is dense for the standardization iodine to each pixel in the tangent plane picture under not same period phase
Degree carries out Pseudo-color technology, obtains standardization iodine concentration figure of the section under not same period phase.
In one embodiment, described device can also include (not showed that in Fig. 6)：
First receiving unit, the first assigned serial number for receiving user's input specify phase phase with first；
Second output unit, for exporting section corresponding to first assigned serial number under the described first specified phase phase
High-energy image and low energy image.
In one embodiment, described device can also include (not showed that in Fig. 6)：：
Computing unit, for according to the high-energy image sequence and low energy image sequence under the not same period phase, calculating
Obtain the fusion energy image sequence under not same period phase；
Second receiving unit, the second assigned serial number for receiving user's input specify phase phase with second；
3rd output unit, for exporting section corresponding to second assigned serial number under the described second specified phase phase
Fusion energy diagram picture.
Fig. 7 is refer to, is the embodiment schematic diagram of the application image processing equipment, the image processing equipment includes：It is internal
Bus 710, and memory 720, the processor 730 connected by internal bus 710；
Wherein, the memory 720, can be used for store dual energy CT image procossing control logic corresponding to machine can
Reading instruction；
It the processor 730, can be used for reading the machine readable instructions on the memory, and perform the finger
Make to realize following operation：
Dual energy CT enhancing scanning is carried out to tested tissue, obtains the tested high energy spirogram being organized under not same period phase
As sequence and low energy image sequence；
To in the high-energy image sequence and the low energy image sequence, section of the same section under not same period phase
Imaging is handled as follows, wherein, the section imaging includes high-energy image and low energy image：
Based on high-energy image and low energy image, artery of the artery in the section under not same period phase is calculated
Iodine concentration；And region iodine concentration of each pixel under not same period phase in the section imaging is calculated；
According to the artery iodine concentration and the region iodine concentration, each pixel in the section imaging is calculated
Standardization iodine concentration of the point under not same period phase；
Standardization iodine concentration of each pixel under not same period phase in being imaged according to the section, cut described in generation
Standardization iodine concentration figure of the face under not same period phase；
Standardization iodine concentration figure of the same section that output handles to obtain under not same period phase.
The function of unit and the implementation process of effect specifically refer to and step are corresponded in the above method in said apparatus
Implementation process, it will not be repeated here.
For device embodiment, because it corresponds essentially to embodiment of the method, so related part is real referring to method
Apply the part explanation of example.Device embodiment described above is only schematical, wherein described be used as separating component
The unit of explanation can be or may not be physically separate, can be as the part that unit is shown or can also
It is not physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to reality
Need to select some or all of module therein to realize the purpose of application scheme.Those of ordinary skill in the art are not paying
In the case of going out creative work, you can to understand and implement.
The preferred embodiment of the application is the foregoing is only, not limiting the application, all essences in the application
God any modification, equivalent substitution and improvements done etc., should be included within the scope of the application protection with principle.
Claims (13)
1. a kind of dual energy CT image processing method, it is characterised in that methods described includes：
Dual energy CT enhancing scanning is carried out to tested tissue, obtains the tested high-energy image sequence being organized under not same period phase
Row and low energy image sequence；
To in the high-energy image sequence and the low energy image sequence, section of the same section under not same period phase is imaged
It is handled as follows, wherein, the section imaging includes high-energy image and low energy image：
Based on high-energy image and low energy image, it is dense that artery iodine of the artery in the section under not same period phase is calculated
Degree；And region iodine concentration of each pixel under not same period phase in the section imaging is calculated；
According to the artery iodine concentration and the region iodine concentration, each pixel being calculated in the section imaging exists
The not standardization iodine concentration under same period phase；
Standardization iodine concentration of each pixel under not same period phase in being imaged according to the section, generates the section and exists
The not standardization iodine concentration figure under same period phase；
Standardization iodine concentration figure of the same section that output handles to obtain under not same period phase.
2. according to the method for claim 1, it is characterised in that it is described to be based on high-energy image and low energy image, calculate
Artery iodine concentration of the artery in the section under not same period phase is drawn, including：
Arteriosomes is determined in high-energy image and low energy image；
Based on the arteriosomes in the high-energy image, with the arteriosomes in the low energy image, it is calculated described
Artery iodine concentration of the artery under not same period phase in section.
3. according to the method for claim 2, it is characterised in that described to determine to move in high-energy image and low energy image
Arteries and veins region includes：
Instructed according to the mark of user, arteriosomes is determined in high-energy image and low energy image；Or according to pre- imputation
Method, arteriosomes is determined in high-energy image and low energy image.
4. according to the method for claim 1, it is characterised in that each pixel in the imaging according to the section
Standardization iodine concentration under not same period phase, generating standardization iodine concentration figure of the section under not same period phase includes：
Standardization iodine concentration of each pixel under not same period phase in being imaged to the section carries out Pseudo-color technology, obtains
Standardization iodine concentration figure of the section under not same period phase.
5. according to the method for claim 1, it is characterised in that carry out dual energy CT enhancing in described pair of tested tissue and sweep
Retouch, obtain described be detected and be organized in after the high-energy image sequence under not same period phase and low energy image sequence, in addition to：
The first assigned serial number and first for receiving user's input specify phase phase；
Export high-energy image and low energy of the section corresponding to first assigned serial number under the described first specified phase phase
Image.
6. according to the method for claim 1, it is characterised in that carry out dual energy CT enhancing in described pair of tested tissue and sweep
Retouch, obtain described be detected and be organized in after the high-energy image sequence under not same period phase and low energy image sequence, in addition to：
According to the high-energy image sequence and low energy image sequence under the not same period phase, melting under not same period phase is calculated
Close energy image sequence；
The second assigned serial number and second for receiving user's input specify phase phase；
Export the fusion energy diagram picture under phase phase is specified in section corresponding to second assigned serial number described second.
7. a kind of dual energy CT image processing apparatus, it is characterised in that described device includes：
Scanning element, for carrying out dual energy CT enhancing scanning to tested tissue, obtain described be detected and be organized under not same period phase
High-energy image sequence and low energy image sequence；
Graphics processing unit, in the high-energy image sequence and the low energy image sequence, same section is not
Section imaging under same period phase is handled as follows, wherein, the section imaging includes high-energy image and low energy image：
Based on high-energy image and low energy image, it is dense that artery iodine of the artery in the section under not same period phase is calculated
Degree；And region iodine concentration of each pixel under not same period phase in the section imaging is calculated；
According to the artery iodine concentration and the region iodine concentration, each pixel being calculated in the section imaging exists
The not standardization iodine concentration under same period phase；
Standardization iodine concentration of each pixel under not same period phase in being imaged according to the section, generates the section and exists
The not standardization iodine concentration figure under same period phase；
First output unit, standardization iodine concentration figure of the same section for handling to obtain for output under not same period phase.
8. device according to claim 7, it is characterised in that described image processing unit includes：
Arteriosomes determination subelement, for determining arteriosomes in high-energy image and low energy image；
First computation subunit, it is and dynamic in the low energy image for based on the arteriosomes in the high-energy image
Arteries and veins region, artery iodine concentration of the artery in the section under not same period phase is calculated.
9. device according to claim 8, it is characterised in that the arteriosomes determination subelement is specifically used for：
Instructed according to the mark of user, arteriosomes is determined in high-energy image and low energy image；Or according to pre- imputation
Method, arteriosomes is determined in high-energy image and low energy image.
10. device according to claim 7, it is characterised in that described image processing unit includes：
Subelement is generated, for entering to standardization iodine concentration of each pixel in the tangent plane picture under not same period phase
Row Pseudo-color technology, obtain standardization iodine concentration figure of the section under not same period phase.
11. device according to claim 7, it is characterised in that described device also includes：
First receiving unit, the first assigned serial number for receiving user's input specify phase phase with first；
Second output unit, for exporting the height under phase phase is specified in section corresponding to first assigned serial number described first
Energy diagram picture and low energy image.
12. device according to claim 7, it is characterised in that described device also includes：
Computing unit, for the not high-energy image sequence and low energy image sequence under same period phase according to, it is calculated
The not fusion energy image sequence under same period phase；
Second receiving unit, the second assigned serial number for receiving user's input specify phase phase with second；
3rd output unit, for exporting the melting under the described second specified phase phase of section corresponding to second assigned serial number
Close energy diagram picture.
A kind of 13. image processing equipment, it is characterised in that including：Internal bus, and the storage connected by internal bus
Device, processor；Wherein,
The memory, for storing machine readable instructions corresponding to the control logic of dual energy CT image procossing；
The processor, for reading the machine readable instructions on the memory, and the instruction is performed to realize such as
Lower operation：
Dual energy CT enhancing scanning is carried out to tested tissue, obtains the tested high-energy image sequence being organized under not same period phase
Row and low energy image sequence；
To in the high-energy image sequence and the low energy image sequence, section of the same section under not same period phase is imaged
It is handled as follows, wherein, the section imaging includes high-energy image and low energy image：
Based on high-energy image and low energy image, it is dense that artery iodine of the artery in the section under not same period phase is calculated
Degree；And region iodine concentration of each pixel under not same period phase in the section imaging is calculated；
According to the artery iodine concentration and the region iodine concentration, each pixel being calculated in the section imaging exists
The not standardization iodine concentration under same period phase；
Standardization iodine concentration of each pixel under not same period phase in being imaged according to the section, generates the section and exists
The not standardization iodine concentration figure under same period phase；
Standardization iodine concentration figure of the same section that output handles to obtain under not same period phase.
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