CN107273885A - A kind of method that scanning area is automatically determined based on positioning image - Google Patents
A kind of method that scanning area is automatically determined based on positioning image Download PDFInfo
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- CN107273885A CN107273885A CN201710526534.1A CN201710526534A CN107273885A CN 107273885 A CN107273885 A CN 107273885A CN 201710526534 A CN201710526534 A CN 201710526534A CN 107273885 A CN107273885 A CN 107273885A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/22—Image preprocessing by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/032—Transmission computed tomography [CT]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/54—Control of apparatus or devices for radiation diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/54—Control of apparatus or devices for radiation diagnosis
- A61B6/545—Control of apparatus or devices for radiation diagnosis involving automatic set-up of acquisition parameters
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V2201/00—Indexing scheme relating to image or video recognition or understanding
- G06V2201/03—Recognition of patterns in medical or anatomical images
Abstract
A kind of method for automatically determining scanning area, including：Obtain positioning image；At least one feature locations of the identification positioning image；According at least one described feature locations, a scanning area is set on the positioning image automatically.Wherein, the scanning area includes original position and final position, and described automatic one scanning area of setting on the positioning image includes the original position and/or final position are arranged on at least one described feature locations automatically.Method or system described herein can largely reduce the time loss in the operating procedure of operator, reduction clinical scanning.
Description
Technical field
The application is related to Medical Imaging Technology field, more specifically, and the application is related to a kind of automatically true according to positioning image
Determine the method and system of scanning area.
Background technology
At present, in computed tomography (Computed Tomography, CT), before formal diagnosis of scans, it is necessary to
Positioning image scanning is carried out, and scan plan is determined based on the positioning image by doctor or technical staff.Generally, doctor or technology
The operators such as personnel need to manually adjust scan position according to the positioning image.For example, for head scanning, operator needs
The original position of scan plan frame (Planbox) is navigated into skull upper limb manually on operating platform；Adjust Planbox manually again
End position cover whole head zone.In general, operator need carry out multistep mouse action (for example, click on,
Dragging, amplification etc.) original position and final position can be just accurately positioned, it operator is spent the more operating time,
It is unfavorable for average daily Number of Outpatients very big hospital.
The content of the invention
The application provides a kind of system and method for automatically determining scanning area, can automatically adjust institute according to positioning image
Scanning area is stated, the time loss in the operating procedure of operator, reduction clinical scanning can be largely reduced.
On the one hand the application provides a kind of method for automatically determining scanning area, and this method includes：Obtain positioning image；
At least one feature locations of the identification positioning image；According at least one described feature locations, automatically in the positioning figure
As one scanning area of upper setting.
In this application, at least one feature locations of the identification positioning image include：Schemed according to the positioning
At least one in the decay value information of picture, position information and scanning direction information, recognize the positioning image it is described at least
One feature locations.
In this application, at least one described feature locations include a feature locations, described automatic in the positioning figure
As upper setting scanning area include it is automatic one in the original position and final position of the scanning area is arranged on described in
Feature locations.
In this application, at least one described feature locations include two feature locations, described automatic in the positioning figure
As upper setting scanning area is described two including being automatically separately positioned on the original position and final position of the scanning area
Feature locations.
In this application, the feature locations are identified according to the pixel value of pixel on the positioning image.
In this application, the feature locations of the positioning image are included in skull apical margin, clavicle upper limb, shoulder blade
Portion or lung's lower edge.
In this application, the method for automatically determining scanning area is also repaiied including user to the scanning area
Change.
In this application, the user modifies including starting user to the scanning area to the scanning area
Position and/or final position are modified.
On the other hand the application provides a kind of system for automatically determining scanning area, including a processor and a meter
Calculation machine readable storage medium storing program for executing, the computer-readable storage medium carrying instruction, when by the computing device, the instruction makes place
The step of reason device is performed includes：Obtain positioning image；At least one feature locations of the identification positioning image；According to it is described extremely
Few feature locations, set a scanning area on the positioning image automatically.
On the other hand the application provides a kind of non-transitory computer-readable medium for including executable instruction, when by extremely
During a few computing device, the executable instruction can make at least one described processor realize a kind of method, this method
Including：Obtain positioning image；At least one feature locations of the identification positioning image；According at least one described Q-character
Put, a scanning area is set on the positioning image automatically.
Relative to prior art, feature locations of the technical scheme in positioning image automatically determine scanning area
Domain, saves the manually operated of doctor, saves the time；Moreover, optional, doctor only needs to enter for the scanning area automatically determined
Row fine setting original position or final position are that can obtain final scanning area, save time loss, submit and check efficiency, can be with
Meet the demand clinically to carrying out a large amount of patient's scannings in the short time.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the embodiment of the present application, used required in being described below to embodiment
Accompanying drawing be briefly described.
Fig. 1 is the CT scan system shown in some embodiments in the application；
Fig. 2 is the example modules schematic diagram of the control device shown in some embodiments in the application；
Fig. 3 is the exemplary process diagram of the scanning process shown in some embodiments in the application；And
Fig. 4 and Fig. 5 are the schematic diagrames of the scan method shown in some embodiments in the application.
Embodiment
In order to illustrate more clearly of the technical scheme of embodiments herein, make required in being described below to embodiment
Accompanying drawing is briefly described.
Fig. 1 is the CT scan system 100 according to the embodiment of some in the application.As shown in figure 1, CT scan system 100 is wrapped
Include data acquisition equipment 110, control device 120, storage device 130 and interactive device 140.Data acquisition equipment 110, control are set
Standby 120, storage device 130 and interactive device 140 can be communicated by network 160 each other.In certain embodiments,
Control device 120 directly can communicate with data acquisition equipment 110, storage device 130 and interactive device 140, without logical
Cross network 160.In other embodiments, scanning system can also be CBCT scanning systems etc., in this application without limiting.
Data acquisition equipment 110 can be the equipment of a gathered data.In certain embodiments, the data can be wrapped
Include image, or the initial data for producing image etc..The process of the gathered data can be including the use of radioactivity wire harness
(for example, X-ray etc.) is scanned (for example, computed tomography) to object.
Control device 120 can be controlled to the gatherer process of data.For example, control device 120 can be according to positioning
Image information determines the gatherer process of scanning area and/or the control data.The control can include rising for control scanning
Beginning position, final position, scanning range, scanning direction etc..The scanning range can be determined according to scan plan.The scanning
Plan can be determined according to clinical demand.The size for the scanning area that the scanning range can include determining that.In some implementations
In example, the size of the scanning area of different parts is to that should have different default values, and when scanned position is determined, corresponding acquiescence is swept
Retouching the size in region can also be determined.For example, if desired understanding the cardiac function abnormal conditions of patient, then according to for heart
Scan plan, the scanning area can include whole thorax；If desired the brain tumor situation of patient is understood, then according to pin
To the scan plan on head, the scanning area can include whole head.The scanning direction includes into bed scanning, moves back bed and sweep
Retouch.It is described enter bed scanning and/or to move back bed scanning divided according to scanning bed moving direction in CT equipment, entering bed scanning is
From the beginning the scanning (head to sufficient scanning) of foot is arrived, it is the scanning (being scanned enough to head) from foot to the end to move back bed scanning.In some embodiments
In, the control device 120 includes processor.
Storage device 130 can be with data storage, information or computer program etc..In certain embodiments, the data or
Information can be positioning image, scan data etc..In certain embodiments, the place of the computer program controlled device 120
Manage device to perform, the gatherer process for determining scanning area and/or the control data according to positioning image information.Storage device
130 can be one or more storage medium that can be read or write, including but not limited to SRAM (SRAM),
Random access memory (RAM), read-only storage (ROM), hard disk, flash memory etc..In certain embodiments, storage device 130 can also
It is long-range memory, such as cloud disk.
Interactive device 140 can receive, send data or information.Set for example, interactive device 140 can receive data acquisition
Data, data of the storage of storage device 130 that standby 110 data obtained, control device 120 are produced etc..In certain embodiments,
Interactive device 140 includes display screen, can be shown received data.For example, interactive device 140 will can be received
The positioning image 150 of chest show on a display screen.For another example interactive device 140 can receive the input information of user simultaneously
It is sent to data acquisition equipment 110, control device 120 and/or storage device 130 etc..The information of user's input can lead to
Cross mouse, keyboard, action bars, touch-screen etc. and carry out input operation.Specifically, image 150, Yong Huke is positioned according to the chest
To drag Planbox manually, and swept by control device 120 according to Planbox Region control data acquisition equipment 110
Retouch.
It is worth noting that, above description is only the specific embodiment of the present invention, unique implementation is not considered as
Example.Those skilled in the art can modify, this is repaiied in the case where not paying additional effort to the method in the example
Change still in the protection domain of the application.For example, control device 120 and interactive device 140 can with it is integrated within one device.
Fig. 2 is the example modules schematic diagram of the control device 120 according to the embodiment of some in the application.Control device
120 can include image collection module 210, location identification module 220, position adjustment block 230 and scan module 240.
Image collection module 210 can position image for obtaining one or more.Positioning image mentioned here can
For realizing the positioning to scanned position in CT examination, to determine scanning area.In certain embodiments, image obtains mould
Block 210 directly or indirectly (for example, by network 160) can obtain positioning image or for producing from data acquisition equipment 110
The data of raw positioning image.In certain embodiments, image collection module 210 can be obtained by network 160 and be stored in storage
Positioning image in equipment 130.
Location identification module 220 can for recognize scanning area original position and/or final position.Scanning area
Original position is the position that scanning starts, and the final position of scanning area is the position of the end of scan.The start bit of scanning area
Put and/or final position can be arranged on the feature locations in positioning image, it may for example comprise but it is not limited to skull apical margin, clavicle
Upper limb, shoulder blade middle part, lung's lower edge etc..In certain embodiments, according to the positioning decay value information of image, position information and
At least one in the information of scanning direction, location identification module 220 can recognize the feature locations in the positioning image, and will
It is defined as the original position and/or final position of scanning area.For example, due to different tissues or organ to the absorption of ray or
Person's pad value may be different, then different tissues or organ can correspond to the pixel of different pixel values in positioning image, and position is known
Feature locations can be identified according to the pixel value of pixel on the positioning image in other module 220.Specifically, swept on head
In retouching, according to the size of the pixel value of the pixel of skull apical margin on head positioning image, location identification module 220 can be recognized
Go out skull apical margin, so using skull apical margin as scanning area original position and/or final position.
In certain embodiments, location identification module 220 can position a feature locations in image for identification, and
Automatically one in the original position or final position of scanning area is arranged on the feature locations.In some embodiments
In, location identification module 220 can be according to the default size in region to be scanned, the automatic scanning area that sets on positioning image
Another in original position or final position.The default size in the region to be scanned can be the default value of system, for example,
According to the history scanning information in region to be scanned it can be determined and set in systems by user.In certain embodiments, user
The scanning area can be modified.For example, user can be carried out to the original position and/or final position of scanning area
Modification.Modification of the user to scanning area can be realized by position adjustment block 230.
In certain embodiments, location identification module 220 can position two feature locations in image for identification, and
Automatically the original position or final position of scanning area are separately positioned on described two feature locations.In some embodiments
In, user can modify to scanning area, specifically, and user can be to the original position and/or stop bit of scanning area
Put and modify.Modification of the user to scanning area can be realized by position adjustment block 230.
Position adjustment block 230 can for adjust scanning area original position and/or final position.In some implementations
In example, the regulation to scanning area can be realized by adjusting Planbox.Known according to different scan plans and position
Original position and/or final position that other module 220 is recognized, Planbox can mark corresponding scanning on positioning image
Region.The Planbox has the first border and the second boundary, and the scope correspondence between first border and the second boundary is swept
Retouch region.If for example, scanning area is head, portion region of lifting one's head can be marked on positioning image by Planbox.Institute
It can be rectangle frame, square box, circular frame, oval frame etc. to state Planbox.In the present embodiment, because image is vertically displaying,
Planbox the first border and the second boundary can be referred to as coboundary and lower boundary.By taking rectangle frame as an example, Planbox it is upper/
Lower boundary position can correspond to the original position and/or final position of scanning area respectively.In certain embodiments, position adjustments
The size of scanning area can be adjusted for module 230.For example, in head scanning, the original position of scanning area is automatic
The coboundary for being arranged on head apical margin, i.e. Planbox is located at the position of the head apical margin.Position adjustment block 230 can lead to
Cross information (for example, final position of scanning area) and the information inputted according to user that interactive device 140 receives user's input
By the final position of Planbox lower boundary position adjustments to the scanning area.The information of user's input can pass through
Mouse, keyboard, action bars, touch-screen etc. carry out input operation.For another example the scanning area that user automatically determines to system is discontented with
Meaning, can be adjusted by position adjustment block 230.In certain embodiments, position adjustment block 230 can be omitted.
Scan module 240 can be according to the original position and final position of scanning area, in control data collecting device 110
Detected body is scanned.For example, in CT system, X-ray beam can be marked in Planbox up/down boundary position
Scope between, detected body is scanned.
Fig. 3 is the exemplary process diagram of the scanning process according to the embodiment of some in the application.In certain embodiments, flow
Journey 300 can be realized by control device 120.
In 310, a positioning image can be obtained.In certain embodiments, 310 can pass through image collection module
210 realize.The positioning image can be the positioning image of the head, chest, belly, the trunk that are obtained by CT scan etc..Institute
It can be that the data progress gathered according to data acquisition equipment 110 handles obtained image to state positioning image, or is stored in
Positioning image in storage device 130.The positioning image is relevant with the scanning area that object to be detected carries out follow up scan.Example
Such as, if necessary to scanning human body head, the human body head region is then at least included in the positioning image.
In 320, at least one feature locations of the positioning image can be recognized.In certain embodiments, 320 can be with
Realized by location identification module 220.The feature locations of the positioning image can include by location identification module 220 in positioning
The feature locations identified in image, for example, skull apical margin, clavicle upper limb, shoulder blade middle part, lung's lower edge etc..Position is recognized
Module 220 can be right according at least one in the decay value information, position information and the information of scanning direction positioned in image
The feature locations are identified.For example, location identification module 220 can be carried out according to the pixel value of pixel on positioning image
Identification.Specifically, the pixel value represents different tissues in positioning image or the pad value corresponding to organ, location identification module
220 can determine feature locations according to the size of pad value.In certain embodiments, the feature locations can be according to follow-up institute
The region that need to be scanned is determined.For example, if the region of follow up scan is head, the feature locations can include skull apical margin；
If the region of follow up scan is chest, the feature locations can include clavicle upper limb or lung's lower edge.
In 330, one scanning area can be set according to the feature locations automatically.In certain embodiments, 330
It can be realized by location identification module 220.In certain embodiments, scanning area is set to include determining the starting of scanning area
Position and/or final position.The original position of scanning area is the position that scanning starts, and the final position of scanning area is scanning
The position of end.The original position and/or final position of scanning area can be arranged on the feature locations in positioning image.One
In a little embodiments, location identification module 220 automatically can set one in the original position or final position of scanning area
Put a feature locations in the identification.Location identification module 220 can be schemed according to the default size of scanning area in positioning
As upper automatic setting scanning area original position or final position in another.In certain embodiments, position identification mould
The original position or final position of scanning area can be separately positioned on two Q-characters in positioning image by block 220 automatically
Put.
In certain embodiments, the original position and/or final position of the scanning area can according to position information and
Scanning direction information is determined.The position information include it is advanced lie on the back (HFS), advanced prostrate (HFP), an advanced left lateral position
(HFL), an advanced right lateral position (HFR), pin it is advanced lie on the back (FFS), the advanced prostrate of pin (FFP), advanced (FFL), the pin of lying on the left side of pin
Crouch (FFR) etc. on advanced right side.The scanning direction can be into bed scanning, move back bed scanning etc..So that position is HFS as an example, obtain
Positioning image be normotopia, i.e., skull apical margin be located at image top.If scanning direction be head to foot (be into bed scan),
The original position of scanning area can be automatically located in the skull apical margin in positioning image by location identification module 220；If swept
Mode is retouched to be sufficient to head (moving back bed scanning), the final position of scanning area can be automatically located in by location identification module 220
Position the skull apical margin in image.
In 340, the scanning area can be adjusted.In certain embodiments, 340 can pass through position adjustment block
230 realize.In certain embodiments, the regulation to scanning area can be realized by adjusting Planbox.According to difference
Scan plan and location identification module 220 recognize original position and/or final position, Planbox can positioning figure
Corresponding scanning area is marked on picture.Position adjustment block 230 can be adjusted by the position or size for adjusting Planbox
Scanning area.In certain embodiments, position adjustment block 230 can be to the original position and/or final position of scanning area
It is adjusted.For example, the original position of scanning area is automatically located in a feature locations, position adjustment block 230 can be right
The final position of the scanning area is adjusted, so as to ensure that scanning area meets the requirement of doctor.If for another example scanning area
The original position and final position in domain are automatically located in two feature locations respectively, and position adjustment block 230 can be to start bit
Put and/or final position is finely adjusted, so as to ensure that the scanning area meets the requirements.In certain embodiments, the adjustment
The information realization that process can be inputted by position adjustment block 230 according to user.The information of user's input includes user couple
Mouse, keyboard, action bars, touch-screen such as are clicked on, dragged, being amplified at the operation.In certain embodiments, position adjustment block
230 can also receive the information that user inputs by interactive device 140, and the information inputted according to user is to the upper of Planbox
Border and/or lower boundary position are adjusted.For example, in head scanning, the original position of scanning area is arranged on head top
Edge, the head apical margin is set to Planbox coboundary position, the letter that position adjustment block 230 can be inputted according to user
Breath determines the final position of scanning area, by the final position of Planbox lower boundary position adjustments to the scanning area.
In some embodiments, the regulation process can manually be adjusted including user.
In 350, it is scanned according to the scanning area.In certain embodiments, 350 can pass through scan module
240 realize.In certain embodiments, scan module 240 can control number according to the original position and final position of scanning area
Detected body is scanned in scanning area according to collecting device 110.
It is worth noting that, the description for computed tomography method is an example, the skill of this area above
Art personnel can modify in the case where not paying additional effort to the method in the example, and the modification is still in this Shen
In protection domain please.For example, the scanning area of system automatic identification meets the requirements, it is not necessary to be adjusted, institute is adjusted in 340
Stating the process of scanning area can omit.
Fig. 4 and Fig. 5 are the schematic diagrames of the scan method according to the embodiment of some in the application.Fig. 4 is determining according to chest
The schematic diagram for the scanning area (region of mark in Planbox) that bit image is determined, Fig. 5 is determined according to the positioning image on head
The scanning area region of mark (Planbox in) schematic diagram.In 410, bed scanning is is moved back in scanning direction, and position recognizes mould
Block 220 can recognize the feature locations (for example, clavicle upper limb) in positioning image.According to the feature locations of identification, position
The final position of scanning area can be arranged on the feature locations (for example, clavicle upper limb) by identification module 220 automatically, such as be schemed
The position of Planbox coboundaries in 4.In certain embodiments, location identification module 220 can be according to the region to be scanned of acquiescence
Size, the position of automatic original position Planbox lower boundaries in the bottom of lung, such as Fig. 4 that scanning area is set.At some
In embodiment, the information that the original position of the scanning area can be inputted by user is determined, for example, position adjustment block 230
The information that can be inputted according to user determines the original position of scanning area, by Planbox lower boundary position adjustments to described
The original position (for example, bottom of lung) of scanning area.The information of user's input includes user to mouse, keyboard, operation
Bar, touch-screen such as are clicked on, dragged, being amplified at the operation.In 510, scanning direction is into bed scanning, location identification module 220
The feature locations (for example, skull apical margin) in positioning image can be recognized.According to the feature locations of identification, position identification mould
The original position of scanning area can be arranged on the feature locations (for example, skull apical margin) by block 220 automatically, in such as Fig. 5
The position of Planbox coboundaries.In certain embodiments, location identification module 220 can be according to the region to be scanned of acquiescence
Size, the automatic final position for setting scanning area is in head end (for example, close to position of vertebra), such as Planbox in Fig. 5
The position of lower boundary.In certain embodiments, the information that the final position of the scanning area can be inputted by user determines, example
Such as, the information that position adjustment block 230 can be inputted according to user determines the final position of scanning area, by under Planbox
Boundary position is adjusted to the final position of the scanning area (for example, head end).The information of user's input includes using
The operation such as clicked on, dragged, being amplified to mouse, keyboard, action bars, touch-screen in family.
Although with reference to the accompanying drawings of several specific embodiments of the application, it is illustrated that depict some excellent of the application
Feature is selected, as long as it will be apparent, however, to one skilled in the art, that the feature and a little without departing substantially from the present invention in principle, can be right
The present invention makes many changes and improvements.The changes and improvements done are still within the scope of the disclosure of the application.
Claims (10)
1. a kind of method for automatically determining scanning area, it is characterised in that methods described includes：
Obtain positioning image；
At least one feature locations of the identification positioning image；
According at least one described feature locations, a scanning area is set on the positioning image automatically.
2. the method according to claim 1 for automatically determining scanning area, it is characterised in that the identification positioning figure
At least one feature locations of picture include：
At least one in the decay value information of the positioning image, position information and scanning direction information, identification is described
Position at least one described feature locations of image.
3. the method according to claim 1 for automatically determining scanning area, it is characterised in that at least one described Q-character
Put comprising a feature locations, the automatic setting scanning area on the positioning image includes automatic by the scanning area
Original position and final position in one be arranged on the feature locations.
4. the method according to claim 1 for automatically determining scanning area, it is characterised in that at least one described Q-character
Put comprising two feature locations, the automatic setting scanning area on the positioning image includes automatic by the scanning area
Original position and final position be separately positioned on described two feature locations.
5. the method according to claim 1 for automatically determining scanning area, it is characterised in that at least one described Q-character
Put and be identified according to the pixel value of pixel on the positioning image.
6. the method according to claim 1 for automatically determining scanning area, it is characterised in that the positioning image it is described
At least one feature locations includes skull apical margin, clavicle upper limb, shoulder blade middle part or lung's lower edge.
7. the method according to claim 1 for automatically determining scanning area, it is characterised in that also swept including user to described
Region is retouched to modify.
8. the method according to claim 7 for automatically determining scanning area, it is characterised in that the user is to the scanning
Region is modified modifies including user to the original position and/or final position of the scanning area.
9. a kind of system for automatically determining scanning area, including：
One processor；With
One computer-readable recording medium, the computer-readable storage medium carrying instruction, when by the computing device, institute
Stating the step of instruction makes computing device includes：
Obtain positioning image；
At least one feature locations of the identification positioning image；
According at least one described feature locations, a scanning area is set on the positioning image automatically.
10. a kind of non-transitory computer-readable medium for including executable instruction, when executed by least one processor, institute
Stating executable instruction can make at least one described processor realize a kind of method, and this method includes：
Obtain positioning image；
At least one feature locations of the identification positioning image；
According at least one described feature locations, a scanning area is set on the positioning image automatically.
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