CN104759037B - Radiotherapy dosimetry contrasts display methods and system - Google Patents
Radiotherapy dosimetry contrasts display methods and system Download PDFInfo
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Abstract
The invention discloses a kind of Radiotherapy dosimetry contrast display methods and system, it is corresponding with reference to dose value by the every kind of various dose data for obtaining coordinate points of the cursor on CT picture positions, recognize respectively in the corresponding isodose of every kind of various dose data closest to the corresponding reference isodose with reference to dose value, calculate the distance between every kind of coordinate points with reference to isodose and cursor on CT picture positions, and by the minimum reference isodose of distance isodose as a comparison, hide other isodoses beyond dose value identical isodose of isodose middle dosage value of the cursor on CT images with contrasting isodose or/and highlight the isodose middle dosage value and the dose value identical isodose of the contrast isodose.Doctor is so set to be able to observe that on CT picture positions that corresponding isodose middle dosage value, with contrasting the dose value identical isodose of isodose and being contrasted, more accurately obtains optimal Radiation treatment plans at a glance.
Description
Technical field
The present invention relates to therapeutic radiation treatment field, more particularly to a kind of Radiotherapy dosimetry contrast display methods and system.
Background technology
In tumour radiotherapy field, radiotherapy doctor needs to formulate the radiotherapy side irradiated based on radioactive ray to patient
Case, radiotherapy planning is designed by radiotherapy physics technician by radiotherapy planning system (Treatment Planning System, TPS),
The radiotherapy planning includes 3-dimensional dose of the physical dosage of patient's absorption of human body in patient's body and is distributed, treats launched field parameter,
When treatment launched field parameter mainly carries out radiation cure irradiation with the accelerator of radioactive ray including producing treatment for tumor locus,
The kinematic parameter of each moving component of accelerator, such as radioactive ray incident angle, launched field shape, radiation heat input, hop count, irradiation
Total score number of times etc..Produced by CT (Computed Tomography, electronics obtains machine tomoscan) tomographic apparatus scanning
CT faulted scanning pattern picture, and being used for of having that radiotherapy doctor delineated on CT images before planned design describe patient's human organ
And the contour shape and the structured data of position of tumor locus., it is necessary to by means of computer before radiotherapy is carried out to tumour
Analogue technique, by observing distribution situation of the physical dosage in human body, and tumor target and normal organ be subject to it is specific
The distribution situation of the dose volume histogram of dose irradiation, is estimated to radiotherapy planning, and whether the radiotherapy planning of decision design
Meet the requirement of therapeutic scheme.
Due to during Radiation treatment plans are assessed, it may be necessary to observe distribution feelings of the different types of dosage in human body
Condition, different types of dosage is from radiotherapy planning difference or the different dosage of dosage forms.In existing technical scheme, only meeting
The isodose of single type is shown on CT images, the distribution situation for different type dosage lacks effective observation hand
Section, doctor is difficult to contrast the distribution of different types of dosage.
The content of the invention
Based on this, it is necessary to which there is provided a kind of effective to difference for the problem of contrasting difficult for various dose distribution situation
Radiotherapy dosimetry contrast display methods and system that the corresponding dosage distribution of dose data is contrasted.
A kind of Radiotherapy dosimetry contrasts display methods, comprises the following steps：
Obtain CT images and at least two dose datas；
The corresponding isodose of the every kind of various dose data is included on the CT images；
The every kind of various dose data for obtaining coordinate points of the cursor on the CT picture positions are corresponding with reference to agent
Value；
Recognize respectively in the corresponding isodose of every kind of various dose data closest to the corresponding reference dose value
With reference to isodose, the dose value of every kind of reference isodose recognized is less than or equal to the corresponding reference dosage
Value；
Calculate coordinate points and the every kind of distance with reference to isodose between of the cursor on the CT picture positions；
By the reference isodose minimum with reference to default mark in isodose of distance minimum as a comparison
Isodose；
Obtain the first instruction of user's input；
According to the described first instruction, the isodose middle dosage value and the dose value phase of the contrast isodose are hidden
With isodose beyond other isodoses or/and highlight the isodose middle dosage value with it is described contrast etc. agent
Measure the dose value identical isodose of line.
The present invention also provides a kind of Radiotherapy dosimetry comparison display system, including：
First acquisition module, for obtaining CT images and at least two dose datas；Be additionally operable to according to the CT images and
The dose data, obtains the corresponding 3-dimensional dose distribution of every kind of various dose data；
Display module, for the corresponding isodose of the every kind of various dose data to be included in the CT images；
Second acquisition module, every kind of various dose for obtaining coordinate points of the cursor on the CT picture positions
Data are corresponding with reference to dose value；
Identification module, for recognizing respectively in the corresponding isodose of every kind of various dose data closest to corresponding described
With reference to the reference isodose of dose value, the dose value of every kind of reference isodose recognized is less than or equal to corresponding
The reference dose value；
Computing module, for calculating coordinate points of the cursor on the CT picture positions and every kind of reference isodose
The distance between, and will distance it is minimum it is described with reference to preset in isodose mark it is minimum it is described with reference to isodose as
Contrast isodose；
3rd acquisition module, the first instruction for obtaining user's input；
Hidden module, for according to the described first instruction, hiding the agent such as the isodose middle dosage value and the contrast
Measure other isodoses beyond the dose value identical isodose of line；Or/and
The display module, is additionally operable to, according to the described first instruction, highlight the isodose middle dosage value and institute
State the dose value identical isodose of contrast isodose.
Above-mentioned Radiotherapy dosimetry comparison display system, by only showing isodose middle dosage value and contrast etc. on CT images
The dose value identical isodose of dosage line, makes doctor at a glance it can be seen that isodose middle dosage value and contrast isodose
Dose value identical isodose, to the corresponding isodose distribution situation of various dose data on a certain position of CT images
It has been shown that, so as to realize the observation to the corresponding isodose of various dose data, be conducive to being contrasted, more accurately obtain
The optimal Radiation treatment plans of requirement must be met.
Brief description of the drawings
Fig. 1 contrasts the flow chart of display methods for a kind of Radiotherapy dosimetry of embodiment；
Fig. 2 is flow chart of the acquisition in the Radiotherapy dosimetry contrast display methods of another embodiment with reference to dose value；
Fig. 3 is a kind of construction module schematic diagram of the Radiotherapy dosimetry comparison display system of embodiment.
Embodiment
Referring to Fig. 1, the first embodiment of the present invention provides a kind of Radiotherapy dosimetry contrast display methods, including following step
Suddenly：
S100：Obtain CT images and at least two dose datas.
Design before radiotherapy planning, radiotherapy doctor is delineated on CT images, obtain patient's human organ and tumour portion
The contour shape of position and the structured data of position.The CT images being scanned to human body are obtained, are observed that by CT images
The target area of human lesion.Various dose data include different radiotherapy planning dose datas or different types of dose data.It is different
Radiotherapy planning dose data is the different therapeutic scheme data that doctor formulates, and radiotherapy planning dose data includes treatment launched field ginseng
Number, treatment launched field parameter includes radioactive ray incident angle, launched field shape, radiation heat input, hop count and irradiation total score number of times, no
The different parameter with radiotherapy planning data correspondence.Different types of dose data represents that the type of dosage is different, for example, physics agent
Amount and biological dose are different types of dosage.It is follow-up by obtaining the data and various dose data of the lesion target area
Operation provides data basis.
S200：The corresponding isodose of every kind of various dose data is included on CT images.
The a variety of isodoses of a variety of dose data correspondences, a kind of dose data is to that should have a plurality of isodose, every kind of dosage
The dose value of every isodose is pre-set in the corresponding isodose of data, for example, right in a kind of isodose
There should be 8 isodoses, the corresponding dose value of every isodose is pre-set.By the way that isodose is included in CT to scheme
As upper, the distribution of the isodose of radiological dose can be effectively observed, by observing the isodose that different parts are subject to
Distribution, it can be estimated that the feasibility of the radiotherapy planning.
S300：The every kind of various dose data for obtaining coordinate points of the cursor on CT picture positions are corresponding with reference to dosage
Value.
Different positions may correspond to different dose values on human body CT images, move the cursor to observer and want viewing
Location point, you can the every kind of various dose data for obtaining cursor position are corresponding with reference to dose value, one on CT images
What point corresponded to various dose data is different with reference to dose value, and for example certain point corresponds to one of which dose data
It is 50 with reference to dose value, the reference dose value that the point corresponds to another dose data may be 60.
S400：Recognize respectively in the corresponding isodose of every kind of various dose data closest to corresponding reference dose value
With reference to isodose, the dose value of every kind of reference isodose recognized is less than or equal to corresponding reference dose value.
Due to the position on CT images it is corresponding with reference to dose value not necessarily to that should have isodose so that obtain CT figure
As upper a certain position is corresponding with reference to after dose value, according to the reference dose value, recognize closest to and less than or equal to the dosage
The reference isodose of value, every kind of various dose data are different with reference to dose value to that should have, according to every kind of various dose data pair
That answers is different with reference to dose value, and isodose corresponding to every kind of various dose data is recognized once, is identified and dosage number
It is corresponding number of with reference to isodose according to number of species, it is a kind of a kind of with reference to dosage line with reference to isodose correspondence.
S500:Calculate coordinate points and every kind of distance with reference to isodose between of the cursor on CT picture positions.
S600：Agent is waited as a comparison by the minimum reference isodose of mark is preset in the minimum reference isodose of distance
Measure line.
Due to including the corresponding isodose of a variety of various dose data on CT images, so that corresponding on CT picture positions
Dose value has a variety of, and the corresponding dose value of a certain isodose need to be selected to represent the dose value on the position, by calculating
Distance between every kind of coordinate points with reference to isodose and cursor on CT picture positions.When minimum range only one of which,
It is contrast isodose by the minimum reference isodose of distance.For example, in the corresponding three kinds of references of three kinds of various dose data
In isodose, the distance between only a kind of coordinate points with reference to isodose and cursor on CT picture positions is minimum
, then reference isodose isodose as a comparison is taken, the corresponding dose value of contrast isodose can most represent cursor and exist
Dose value on CT picture positions.When minimum range has multiple, then select multiple same distances corresponding with reference in isodose
It is default to identify minimum reference isodose isodose as a comparison.It is default not for the corresponding isodose of every kind of dose data
With mark, then every kind of dose data is corresponding presets different identification with reference to isodose, and every kind of mark is in different size.For example,
In the corresponding three kinds of references isodose of three kinds of various dose data, default mark is respectively 1,2,3, there is two kinds of references etc.
Distance between the coordinate points of dosage line and cursor on CT picture positions is minimum, for example, mark is respectively 1 and 2 correspondences
Two kinds of coordinate points with reference to isodose and cursor on CT picture positions between distance be minimum, then take two kinds of references
Minimum reference isodose isodose as a comparison is identified in isodose, that is, takes the reference isodose for being designated 1 to make
For contrast isodose.
S700：Obtain the first instruction of user's input.
Specifically, the mouse action instruction that the first instruction inputs for user, as by clicking on the left button or right button in mouse,
The key commands of user's input are produced, the hidden command of user's input is obtained.
S800：According to the first instruction, the dose value identical of isodose middle dosage value with contrasting isodose etc. is hidden
Other isodoses beyond dosage line.
By by beyond isodose middle dosage value dose value identical isodose corresponding with contrast isodose
Other isodoses are hidden, and make other isodoses invisible, so as to reach only dose value and contrast isodose
Dose value identical isodose is shown on CT images.
Above-mentioned Radiotherapy dosimetry comparison display system, by only showing isodose middle dosage value and contrast etc. on CT images
The dose value identical isodose of dosage line, makes doctor at a glance it can be seen that isodose middle dosage value and contrast isodose
Dose value identical isodose, to the corresponding isodose distribution situation of various dose data on a certain position of CT images
It has been shown that, so as to realize the observation to the corresponding isodose of various dose data, be conducive to being contrasted, more accurately obtain
The optimal Radiation treatment plans of requirement must be met.
In another embodiment, differ only in, according to the first instruction, highlight with above-mentioned first embodiment
The step of dosage line middle dosage value and the dose value identical isodose of contrast isodose, replaces above-mentioned according to the first instruction,
Hide isodose middle dosage value and other isodoses beyond the dose value identical isodose of contrast isodose
Step S800.
Specifically, highlight including by isodose middle dosage value and the agent such as dose value identical of contrast isodose
Amount line overstriking show or/and by isodose middle dosage value with contrast isodose dose value identical isodose using with
Other isodoses beyond dose value identical isodose of the isodose middle dosage value from contrasting isodose are different
Color is shown.Radiotherapy doctor is allowed quickly to be clearly observed the isodose for needing to be compared, by comparing, more accurately
Ground obtains the Radiation treatment plans for meeting and requiring.
In yet another embodiment, differed only in above-mentioned first embodiment, according to the first instruction, hide and wait dosage
Line middle dosage value with contrast isodose dose value identical isodose beyond other isodoses and highlight
The step of dosage line middle dosage value and the dose value identical isodose of contrast isodose, replaces above-mentioned according to the first instruction,
Hide isodose middle dosage value and other isodoses beyond the dose value identical isodose of contrast isodose
Step S800.
In one of the embodiments, CT images are simultaneously displayed in multiple windows, the quantity and number of windows of CT images
It is identical.
The corresponding isodose of every kind of various dose data is included into the step S200 on CT images is specially：
The corresponding isodose of every kind of dose data is respectively displayed on the CT images in corresponding multiple windows.
Specifically, CT images are simultaneously displayed in 2 windows, and the quantity of CT images is identical with number of windows, i.e. CT images
Quantity is 2.The CT images that multiple windows are shown are identical CT images.
The corresponding isodose of every kind of various dose data is included into the step S200 on CT images is specially：
The corresponding isodose of one of which dose data is included on the CT images in a window, other dosage numbers
It is shown according to corresponding isodose on the CT images in another window.
In one of the embodiments, according to the first instruction, isodose middle dosage value and contrast isodose are hidden
The step S800 of other isodoses beyond dose value identical isodose includes step：
According to the first instruction, isodose middle dosage value and contrast isodose on the CT images of cursor place window are hidden
Dose value identical isodose beyond other isodoses.
The isodose middle dosage value of other windows and the dose value identical isodose of contrast isodose are replicated
And where affixing to cursor on the CT images of window.
To the dosage such as the isodose middle dosage value on window where cursor and the dose value identical of contrast isodose
Other isodoses beyond line are hidden, then by the isodose middle dosage value of other windows and contrast isodose
Dose value identical isodose replicates and affixes to cursor institute in the window, realizes and is simply being shown on CT images where cursor
Isodose middle dosage value and the dose value identical isodose of contrast isodose, allow medical worker to carry out effectively right
Than.
In one of the embodiments, according to the first instruction, isodose middle dosage value and contrast isodose are hidden
Include step after the step S800 of other isodoses beyond dose value identical isodose：
Obtain the second instruction of user's input.
According to the second instruction, all isodoses are shown on CT images.
Specifically, the loose key information of position of user's cursor on CT images is obtained, according to the loose key information of user, is recovered
The display of isodose is hidden, replicating the isodose pasted window where cursor from other windows disappears.When doctor is not required to
When observing the isodose contrast of the corresponding 3-dimensional dose distribution of various dose data, button can be unclamped, loose key information is produced,
According to the loose key information, all isodoses are shown on CT images.
In one of the embodiments, the corresponding isodose of every kind of various dose data is included into the step on CT images
Rapid S200 includes step：
According to dose data, the corresponding 3-dimensional dose distribution of every kind of various dose data is obtained.
It is distributed according to 3-dimensional dose, extracts the corresponding isodose of every kind of various dose data.
Isodose is shown on CT images.
Various dose data are correspondingly formed different 3-dimensional dose distributions.
In one of the embodiments, it is distributed according to 3-dimensional dose, the every kind of various dose data of extraction are corresponding to wait dosage
The step of line, comprises the following steps：
By carrying out two-dimentional sampling to 3-dimensional dose distribution on CT images, every kind of various dose data corresponding two are obtained
Tie up dosage profile picture.
According to two-dimentional dosage profile picture, the corresponding isodose of every kind of various dose data is extracted.
Distributed in three dimensions is presented in dosage distribution, obtains two-dimentional dose distribution map picture by two dimension sampling, that is, obtains in CT images
Two-dimentional dosage profile picture in plane.By extracting isodose on two-dimentional dosage profile picture, and it is shown on CT images.
Referring to Fig. 2, in one of the embodiments, obtaining every kind of difference of coordinate points of the cursor on CT picture positions
The corresponding step S300 with reference to dose value of dose data comprises the following steps：
S310：Obtain two-dimensional coordinate of the cursor on CT picture positions.
S330：Using the plane of delineation of CT images, two-dimensional coordinate is converted to the three-dimensional coordinate of correspondence human body.
S350：Obtain in the corresponding two-dimentional dosage profile picture of every kind of various dose data with CT images in conplane two
Tie up dosage profile picture.
S370：Utilize the figure that the corresponding two-dimentional dosage profile picture of conplane every kind of various dose data is in CT images
Image plane, the three-dimensional coordinate of human body is converted to and is in the corresponding two dimension of conplane every kind of various dose data with CT images
Two-dimensional coordinate on dosage profile picture.
S390：Obtain with CT images two in the corresponding two-dimentional dosage profile picture of conplane every kind of various dose data
Dimension coordinate is corresponding with reference to dose value.
CT images seem to be in same three dimensions with two-dimentional dosage profile, and two-dimentional dosage profile seems to be superimposed upon CT images to show
, thus the dose value of two-dimensional coordinate point on CT images might not with two-dimentional dosage profile the point dose value, so logical
Such a intermediate variable of three-dimensional coordinate for crossing human body carries out Coordinate Conversion, obtains on the correct matched doses image of the two-dimensional coordinate
Coordinate, so as to obtain correct dose value.Due to there is every kind of different dose data to correspond to different two-dimentional dosage profile pictures,
So as to obtain a variety of different reference dose values.
Referring to Fig. 3, the present invention also provides the Radiotherapy dosimetry comparison display system of the first embodiment, including：
First acquisition module 100, for obtaining CT images and at least two dose datas；It is additionally operable to according to dosage number
According to the corresponding 3-dimensional dose distribution of the every kind of various dose data of acquisition.
Display module 200, for the corresponding isodose of every kind of various dose data to be included in CT images.
Second acquisition module 300, every kind of various dose data for obtaining coordinate points of the cursor on CT picture positions
Corresponding reference dose value.
Identification module 400, for recognizing respectively in the corresponding isodose of every kind of various dose data closest to corresponding
With reference to the reference isodose of dose value, the dose value of every kind of reference isodose recognized is less than or equal to corresponding reference
Dose value.
Computing module 500, for calculating coordinate points of the cursor on CT picture positions and every kind of with reference between isodose
Distance, and the mark minimum reference isodose dosage such as a comparison will be preset in the minimum reference isodose of distance
Line.
3rd acquisition module 600, the first instruction for obtaining user's input.
Hidden module 700, for according to the first instruction, hiding isodose middle dosage value and the dosage of contrast isodose
It is worth other isodoses beyond identical isodose.
Various dose data are obtained by the first acquisition module 100, and various dose number is shown with by display module 300
According to corresponding isodose, every kind of difference of coordinate points of the cursor on CT picture positions is obtained using the second acquisition module 300
Dose data is corresponding with reference to dose value, and identification module 400 is recognized in the corresponding isodose of every kind of various dose data respectively
Closest to the corresponding reference isodose with reference to dose value, then by computing module 500 to every kind of reference isodose and light
The distance between coordinate points being marked on CT picture positions are calculated, and minimum range is marked with advance with reference in isodose
Know minimum reference isodose isodose as a comparison, the first finger that user inputs is obtained by the 3rd acquisition module 600
After order, dose value of the isodose middle dosage value with contrasting isodose using hidden module 700 by cursor on CT images
Other isodoses beyond identical isodose are hidden, the only agent such as display on CT images by display module 300
Measure line middle dosage value and the dose value identical isodose of contrast isodose.
Above-mentioned Radiotherapy dosimetry comparison display system, by only showing isodose middle dosage value and contrast etc. on CT images
The dose value identical isodose of dosage line, makes doctor at a glance it can be seen that isodose middle dosage value and contrast isodose
Dose value identical isodose, isodose point corresponding to various dose data on cursor position on CT images
Cloth situation is shown, so as to realize the observation to the corresponding isodose of various dose data, is conducive to being contrasted, more accurate
Really obtain the optimal Radiation treatment plans for meeting and requiring.
In another embodiment, roughly the same with the first above-mentioned embodiment, difference is, uses display mould
Block 200 replaces above-mentioned hidden module 700, and display module 200 is additionally operable to, according to the first instruction, highlight isodose middle dosage
Value and the dose value identical isodose of contrast isodose.
By highlighting the isodose for needing to be compared, radiotherapy doctor is allowed rapidly and accurately to observe isodose
Middle dosage value and the dose value identical isodose of contrast isodose, are conducive to radiotherapy doctor's matched doses line middle dosage value
It is compared with the dose value identical isodose of contrast isodose, accurately finds out optimal Radiation treatment plans.
In yet another embodiment, roughly the same with the first above-mentioned embodiment, difference is, Radiotherapy dosimetry pair
Include than display system：
Hidden module 700, for according to the first instruction, hiding isodose middle dosage value and the dosage of contrast isodose
It is worth other isodoses beyond identical isodose；And
Display module 200, is additionally operable to, according to the first instruction, highlight isodose middle dosage value and contrast isodose
Dose value identical isodose.
Both concealed isodose middle dosage value with contrast isodose dose value identical isodose beyond its
His isodose, and matched doses line middle dosage value and contrast the dose value identical isodose of isodose and carry out protruding aobvious
Show, be more beneficial for radiotherapy doctor and be compared.
In one of the embodiments, display module 200, are additionally operable to CT images being simultaneously displayed in multiple windows, CT
The quantity of image is identical with number of windows；It is additionally operable to the corresponding isodose of every kind of dose data being respectively displayed on corresponding many
On CT images in individual window.
In one of the embodiments, hidden module 700, are additionally operable to according to the first instruction, window where hiding cursor
Isodose middle dosage value and other grade dosage beyond the dose value identical isodose of contrast isodose on CT images
Line.
Above-mentioned Radiotherapy dosimetry comparison display system also includes：
Placement module, for by the isodose middle dosage value of other windows with contrast isodose dose value identical
Where isodose replicates and affixes to cursor on the CT images of window.
In one of the embodiments, the 3rd acquisition module 600, is additionally operable to obtain the second instruction of user's input.
Above-mentioned Radiotherapy dosimetry comparison display system also includes：
Recovery module, for according to the second instruction, all isodoses to be shown on CT images.
In one of the embodiments, the first acquisition module, is additionally operable to, according to dose data, obtain every kind of various dose number
It is distributed according to corresponding 3-dimensional dose.
Above-mentioned Radiotherapy dosimetry comparison display system also includes：
Extraction module, for being distributed according to 3-dimensional dose, extracts the corresponding isodose of every kind of various dose data.
Display module 200, is additionally operable to include isodose on CT images.
Obtain after the corresponding 3-dimensional dose distribution of every kind of various dose data, various dose data are extracted by extraction module
Corresponding isodose is simultaneously shown on CT images.
In one of the embodiments, above-mentioned Radiotherapy dosimetry comparison display system also includes：
Sampling module, for by carrying out two-dimentional sampling to 3-dimensional dose distribution on CT images, obtaining every kind of different agent
Measure the corresponding two-dimentional dosage profile picture of data.
Extraction module, is additionally operable to according to two-dimentional dosage profile picture, extracts the corresponding isodose of every kind of various dose data.
In one of the embodiments, the second acquisition module 300, is additionally operable to obtain two dimension of the cursor on CT picture positions
Coordinate.
Above-mentioned Radiotherapy dosimetry comparison display system also includes：
Modular converter, for the plane of delineation using CT images, two-dimensional coordinate is converted to the three-dimensional coordinate of correspondence human body.
Second acquisition module 300, is additionally operable to obtain in the corresponding two-dimentional dosage profile picture of every kind of various dose data and schemes with CT
As being in conplane two-dimentional dosage profile picture.
Modular converter, is additionally operable to utilize and is in the corresponding two-dimentional agent of conplane every kind of various dose data with CT images
The plane of delineation of spirogram picture, the three-dimensional coordinate of human body is converted to and is in conplane every kind of various dose data with CT images
Two-dimensional coordinate on corresponding two-dimentional dosage profile picture.
Second acquisition module 300, is additionally operable to obtain corresponding in conplane every kind of various dose data with CT images
Two-dimentional dosage profile picture in two-dimensional coordinate it is corresponding with reference to dose value.
Each technical characteristic of above example can be combined arbitrarily, to make description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield, is all considered to be the scope of this specification record.
Above example only expresses the several embodiments of the present invention, and it describes more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of Radiotherapy dosimetry contrasts display methods, it is characterised in that comprise the following steps：
Obtain CT images and at least two dose datas；
The corresponding isodose of the every kind of various dose data is included on the CT images；
The every kind of various dose data for obtaining coordinate points of the cursor on the CT picture positions are corresponding with reference to dose value；
Recognize respectively in the corresponding isodose of every kind of various dose data closest to the corresponding reference with reference to dose value
Isodose, the dose value of every kind of reference isodose recognized is less than or equal to the corresponding reference dose value；
Calculate coordinate points and the every kind of distance with reference to isodose between of the cursor on the CT picture positions；
The reference isodose minimum with reference to default mark in isodose of distance minimum is waited into agent as a comparison
Measure line；
Obtain the first instruction of user's input；
According to the described first instruction, the isodose middle dosage value and the dose value identical of the contrast isodose are hidden
Other isodoses beyond isodose or/and highlight the isodose middle dosage value and the contrast isodose
Dose value identical isodose；
According to the described first instruction, the isodose middle dosage value and the dose value identical of the contrast isodose are hidden
The step of other isodoses beyond isodose, includes step：
According to the described first instruction, isodose middle dosage value and the contrast on the CT images of window where hiding cursor
Other isodoses beyond the dose value identical isodose of isodose；
By the isodose middle dosage value of other windows and the dose value identical isodose of the contrast isodose
Where replicating and affixing to cursor on the CT images of window.
2. Radiotherapy dosimetry according to claim 1 contrasts display methods, it is characterised in that the CT images are simultaneously displayed on
In multiple windows, the quantity of the CT images is identical with the number of windows；
It is described the corresponding isodose of the every kind of various dose data is included into the step on the CT images to be specially：
The corresponding isodose of the every kind of dose data is respectively displayed on to the CT figures in corresponding the multiple window
As upper.
3. Radiotherapy dosimetry according to claim 1 contrasts display methods, it is characterised in that described to refer to according to described first
Order, hide the isodose middle dosage value with it is described contrast isodose dose value identical isodose beyond other
Include step after the step of isodose：
Obtain the second instruction of user's input；
According to the described second instruction, all isodoses are shown on the CT images.
4. Radiotherapy dosimetry according to claim 1 contrasts display methods, it is characterised in that described by every kind of different agent
The step that the corresponding isodose of amount data is shown on the CT images includes step：
According to the dose data, the corresponding 3-dimensional dose distribution of every kind of various dose data is obtained；
It is distributed according to the 3-dimensional dose, extracts the corresponding isodose of every kind of various dose data；
The isodose is shown on the CT images.
5. Radiotherapy dosimetry according to claim 4 contrasts display methods, it is characterised in that described according to the 3-dimensional dose
Distribution, the step of extracting the every kind of various dose data corresponding isodose comprises the following steps：
By carrying out two-dimentional sampling to 3-dimensional dose distribution on the CT images, every kind of various dose data are obtained
Corresponding two-dimentional dosage profile picture；
According to the two-dimentional dosage profile picture, the corresponding isodose of every kind of various dose data is extracted.
6. Radiotherapy dosimetry according to claim 5 contrasts display methods, it is characterised in that the acquisition cursor is in the CT
Every kind of various dose data of coordinate points on picture position are corresponding to be comprised the following steps with reference to the step of dose value：
Obtain two-dimensional coordinate of the cursor on the CT picture positions；
Using the plane of delineation of the CT images, the two-dimensional coordinate is converted to the three-dimensional coordinate of correspondence human body；
Obtain in the corresponding two-dimentional dosage profile picture of every kind of various dose data with the CT images in same plane
Two-dimentional dosage profile picture；
The corresponding two-dimentional dosage profile picture of the conplane every kind of various dose data is in using with the CT images
The plane of delineation, by the three-dimensional coordinate of the human body be converted to from the CT images be in conplane every kind of different agent
Measure the two-dimensional coordinate on the corresponding two-dimentional dosage profile picture of data；
Obtain with the CT images in the corresponding two-dimentional dosage profile picture of the conplane every kind of various dose data
Middle two-dimensional coordinate is corresponding with reference to dose value.
7. a kind of Radiotherapy dosimetry comparison display system, it is characterised in that including：
First acquisition module, for obtaining CT images and at least two dose datas；It is additionally operable to according to CT images and described
Dose data, obtains the corresponding 3-dimensional dose distribution of every kind of various dose data；
Display module, for the corresponding isodose of the every kind of various dose data to be included in the CT images；
Second acquisition module, every kind of various dose data for obtaining coordinate points of the cursor on the CT picture positions
Corresponding reference dose value；
Identification module, for recognizing respectively in the corresponding isodose of every kind of various dose data closest to the corresponding reference
The reference isodose of dose value, the dose value of every kind of reference isodose recognized is described less than or equal to corresponding
With reference to dose value；
Computing module, for calculating coordinate points of the cursor on the CT picture positions and every kind of described with reference between isodose
Distance, and will minimum described with reference to presetting minimum described of mark in isodose with reference to isodose as a comparison of distance
Isodose；
3rd acquisition module, the first instruction for obtaining user's input；
Hidden module, for according to the described first instruction, hiding the isodose middle dosage value and the contrast isodose
Dose value identical isodose beyond other isodoses；Or/and
The display module, be additionally operable to according to described first instruction, highlight the isodose middle dosage value with it is described right
Than the dose value identical isodose of isodose；
The hidden module, is additionally operable to according to the described first instruction, described etc. on the CT images of window where hiding cursor
Dosage line middle dosage value and other isodoses beyond the dose value identical isodose of the contrast isodose；
The Radiotherapy dosimetry comparison display system also includes：
Placement module, for by the isodose middle dosage value of other windows and it is described contrast isodose dose value phase
Where same isodose replicates and affixes to cursor on the CT images of window.
8. Radiotherapy dosimetry comparison display system according to claim 7, it is characterised in that the display module, is additionally operable to
The CT images are simultaneously displayed in multiple windows, the quantity of the CT images is identical with the number of windows；Being additionally operable to will
The corresponding isodose of every kind of dose data is respectively displayed on the CT images in corresponding the multiple window.
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