CN105748095A - CT (computed tomography) scanning method based on multiple voltage values and equipment - Google Patents
CT (computed tomography) scanning method based on multiple voltage values and equipment Download PDFInfo
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- CN105748095A CN105748095A CN201410790729.3A CN201410790729A CN105748095A CN 105748095 A CN105748095 A CN 105748095A CN 201410790729 A CN201410790729 A CN 201410790729A CN 105748095 A CN105748095 A CN 105748095A
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Abstract
The invention discloses a CT (computed tomography) scanning method based on multiple voltage values and CT scanning equipment. On one hand, the CT scanning method based on the multiple voltage values is provided and comprises steps as follows: a voltage group is established and comprises at least one voltage value of an X-ray tube; a standard scanning entry is loaded and comprises a standard voltage value and a group of standard parameters; voltage values selected from the voltage group are received; a corresponding derivation scanning entry is established according to the standard voltage value, the standard parameters and the selected voltage values, and comprises the selected voltage values and one group of derivation parameters; CT scanning is performed according to the standard scanning entry and the derivation scanning entry.
Description
Technical field
The present invention relates to computed tomography.
Background technology
Finding in CT value research process, bulb difference magnitude of voltage has statistical significance for the impact of CT value.Detected object can be diagnosed more accurately by doctor according to the scanogram under different voltages.But in usual scan protocols design process, only design the scanning of single voltage.And owing to the incidence relation between sweep parameter is extremely complex, domestic consumer is difficult to quickly and accurately designed, designed and goes out the scanning of multivoltage value.Therefore, how allowing user be conveniently generated multi-source agreement is a current problem.
For double source CT, it is possible to take different magnitude of voltage by two bulbs and realize the scanning of multivoltage value.
Several default scan agreement is only provided to carry out the scanning of two kinds of voltages for client for single source CT, CT system.The degree of freedom of user is very low, if user wants other scan protocols are carried out multivoltage scan value analysis, and carries out post processing and cannot realize.
Summary of the invention
In view of this, the present invention proposes a kind of complex number voltage value computed tomography method and ct apparatus.
According to the first aspect of the invention, it is provided that a kind of complex number voltage value computed tomography method, including: setting up a voltage group, described voltage group includes at least one magnitude of voltage of X-ray tube；Loading a reference scan entry, described reference scan entry has a reference voltage value and one group of basic parameter；Receive the selection to the magnitude of voltage in described voltage group；According to described reference voltage value, described basic parameter and selected magnitude of voltage, the corresponding scanning entry that derives from of foundation, described derivation scanning entry has selected magnitude of voltage and one group of derivation parameter；Scan entry according to described reference scan entry and described derivation and do computed tomography.
In one embodiment, described derivation scan stripes purpose derivation parameter is multiplied by the corresponding factor equal to the basic parameter of described reference scan entry.
In one embodiment, described reference scan entry and described derivation scanning entry form one indivisible group.
In one embodiment, scanning in entry in described reference scan entry and described derivation, adjacent scan stripes purpose scanning direction is contrary.
In one embodiment, before computed tomography, described method also includes: judge whether described reference scan entry and described derivation scanning entry meet cooling requirement, only when all meeting, performs the step of computed tomography.
In one embodiment, before computed tomography, described method also includes: adjust described basic parameter；According to described reference voltage value, described basic parameter and selected magnitude of voltage, adjust described derivation parameter.
According to the second aspect of the invention, it is provided that a kind of ct apparatus, including: a voltage sets up vertical unit, and it sets up a voltage group, and described voltage group includes at least one magnitude of voltage of X-ray tube；One reference scan entry loading unit, it loads a reference scan entry, and described reference scan entry has a reference voltage value and one group of basic parameter；One magnitude of voltage receives unit, and it receives the selection to the magnitude of voltage in described voltage group；One derives from scan stripes order generates unit, and it is according to described reference voltage value, described basic parameter and selected magnitude of voltage, and the corresponding scanning entry that derives from of generation, described derivation scanning entry has selected magnitude of voltage and one group of derivation parameter；One computed tomography unit, it scans entry according to described reference scan entry and described derivation does computed tomography.
In one embodiment, described derivation scan stripes purpose derivation parameter is multiplied by the corresponding factor equal to the basic parameter of described reference scan entry.
In one embodiment, described reference scan entry and described derivation scanning entry form one indivisible group.
In one embodiment, described computed tomography unit scans scanning entry adjacent in described reference scan entry and described derivation scanning entry with contrary scanning direction.
In one embodiment, described ct apparatus also includes: a judging unit, it judges whether described reference scan entry and described derivation scanning entry meet cooling requirement, and only when all meeting, described computed tomography unit does computed tomography.
In one embodiment, described ct apparatus also includes: one first adjustment unit, and it is used for adjusting described basic parameter；One second adjustment unit, it is for according to described reference voltage value, described basic parameter and selected magnitude of voltage, adjusting described derivation parameter.
It can be seen that the complex number voltage value computed tomography method of the present invention and ct apparatus can allow user from the function setting up multivoltage scanning from such scheme.The reference scan entry that user can be chosen by system be automatically copied into one group indivisible, not can be inserted into the group of other entries.First reference scan entry only can be carried out parameter editor by user, and all parameters will be inherited in derivation scanning entry automatically.So, user just according to the particular/special requirement of oneself, can generate the scan protocols of some multivoltages self-servicely, allows multivoltage scanning become more dexterous convenient, it is possible to be applied by more scanning position.
Accompanying drawing explanation
Following by the preferred embodiments of the present invention are described in detail with reference to the drawings, the person of ordinary skill in the art is more clear that the above-mentioned of the present invention and other feature and advantage, in accompanying drawing:
Fig. 1 is the schematic diagram of the complex number voltage value computed tomography method according to the first embodiment of the present invention.
Fig. 2 is the structured flowchart of ct apparatus according to the second embodiment of the present invention.
In above-mentioned accompanying drawing, the accompanying drawing labelling adopted is as follows:
Complex number voltage value computed tomography is derived from scanning entry and is generated single
100206
Method unit
S102、S104、
S105、S106、
Step 208 first adjustment unit
S108、S109、
S110、S112
200 ct apparatus 209 second adjustment units
202 voltages set up vertical unit 210 judging unit
204 reference scan entry loading unit 212 computed tomography unit
205 magnitudes of voltage receive unit
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, the present invention is described in more detail by the following examples.
Fig. 1 is the schematic diagram of the complex number voltage value computed tomography method 100 according to the first embodiment of the present invention.Complex number voltage value computed tomography method 100 includes:
Step S102: set up a voltage group, this voltage group includes at least one magnitude of voltage of X-ray tube.Such as, in the present embodiment, this voltage group includes 110kV and 130kV.
Step S104: load a reference scan entry, this reference scan entry has a reference voltage value and one group of basic parameter.In the present embodiment, reference voltage value is 80kV, and basic parameter includes tube current milliampere-second, indicates with reference to tube current milliampere-second, sweep time, pitch, scanning direction and automatic sufferer.
Step S105: receive the selection to the magnitude of voltage in voltage group.Such as, one or two in optional 110kV and 130kV.
Step S106: according to reference voltage value, basic parameter and selected magnitude of voltage, sets up and derives from scanning entry accordingly, derives from scanning entry and has selected magnitude of voltage and one group of derivation parameter.Derive from the element one_to_one corresponding of parameter and basic parameter.In the present embodiment, it is possible to replicate reference scan entry as deriving from scanning entry, and revise the Partial Elements deriving from parameter.Derive from scan stripes purpose derivation parameter and can be multiplied by the corresponding factor equal to the basic parameter of reference scan entry.
Step S112: do computed tomography according to reference scan entry and derivation scanning entry.Reference scan entry and derive from scanning entry and can form one indivisible group, between can not insert other entries, reference scan entry and derive from scanning entry and can replicate with the form of whole group or delete.Reference scan entry and derivation scanning entry can arrange according to magnitude of voltage order from low to high.In order to reduce total sweep time, in reference scan entry and derivation scanning entry, adjacent scan stripes purpose scanning direction is contrary.
Before step S112, method 100 may also include step S110.In step s 110, it is judged that whether reference scan entry and derivation scanning entry meet cooling requirement, only when all meeting, perform the step S112 of computed tomography.
Before step S112, method 100 may also include step S108 and step S109.In step S108, adjust basic parameter.In step S109, according to reference voltage value, basic parameter and selected magnitude of voltage, adjust and derive from parameter.For avoiding user's auto-manual amendment parameter to cause each entry parameter not mate, in the present embodiment, only allow to adjust the parameter of reference scan entry, derive from parameter and automatically adjust.
Fig. 2 is the structured flowchart of ct apparatus 200 according to the second embodiment of the present invention.Ct apparatus 200 includes a voltage and sets up vertical unit 202, reference scan entry loading unit 204, magnitude of voltage reception unit 205, derivation scan stripes order generation unit 206 and a computed tomography unit 212.
The vertical unit 202 of voltage establishment sets up a voltage group, and this voltage group includes at least one magnitude of voltage of X-ray tube.Such as, in the present embodiment, this voltage group includes 110kV and 130kV.
Reference scan entry loading unit 204 loads a reference scan entry, and this reference scan entry has a reference voltage value and one group of basic parameter.In the present embodiment, reference voltage value is 80kV, and basic parameter includes basic parameter and includes tube current milliampere-second, indicates with reference to tube current milliampere-second, sweep time, pitch, scanning direction and automatic sufferer.
Magnitude of voltage receives unit 205 and receives the selection to the magnitude of voltage in voltage group.Such as, one or two in optional 110kV and 130kV.
Derive from scanning entry and generate unit 206 according to reference voltage value, basic parameter and selected magnitude of voltage, generate and derive from scanning entry accordingly, derive from scanning entry and there is selected magnitude of voltage and one group of derivation parameter.Derive from the element one_to_one corresponding of parameter and basic parameter.In the present embodiment, it is possible to replicate reference scan entry as deriving from scanning entry, and revise the Partial Elements deriving from parameter.Derive from scan stripes purpose derivation parameter and can be multiplied by the corresponding factor equal to the basic parameter of reference scan entry.
Computed tomography unit 212 does computed tomography according to reference scan entry and derivation scanning entry.Reference scan entry and derive from scanning entry and can form one indivisible group, between can not insert other entries, reference scan entry and derive from scanning entry and can replicate with the form of whole group or delete.Reference scan entry and derivation scanning entry can arrange according to magnitude of voltage order from low to high.In order to reduce total sweep time, computed tomography unit 212 is with contrary scanning direction scanning reference scan entry and derives from scanning entry adjacent in scanning entry.
Ct apparatus 200 may also include a judging unit 210, and whether its judgment standard scanning entry and derivation scanning entry meet cooling requirement, and only when all meeting, computed tomography unit 212 does computed tomography.
Ct apparatus 200 may also include one first adjustment unit 208 and one second adjustment unit 209.First adjustment unit 208 is used for adjusting basic parameter.Second adjustment unit 209, according to reference voltage value, basic parameter and selected magnitude of voltage, adjusts and derives from parameter.For avoiding user's auto-manual amendment parameter to cause each entry parameter not mate, in the present embodiment, only allow to adjust the parameter of reference scan entry, derive from parameter and automatically adjust.
The complex number voltage value computed tomography method of the present invention and ct apparatus can allow user from the function setting up multivoltage scanning.The reference scan entry that user can be chosen by system be automatically copied into one group indivisible, not can be inserted into the group of other entries.First reference scan entry only can be carried out parameter editor by user, and all parameters will be inherited in derivation scanning entry automatically.So, user just according to the particular/special requirement of oneself, can generate the scan protocols of some multivoltages self-servicely, allows multivoltage scanning become more dexterous convenient, it is possible to be applied by more scanning position.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (12)
1. a complex number voltage value computed tomography method, including:
Setting up a voltage group, described voltage group includes at least one magnitude of voltage of X-ray tube；
Loading a reference scan entry, described reference scan entry has a reference voltage value and one group of basic parameter；
Receive the selection to the magnitude of voltage in described voltage group；
According to described reference voltage value, described basic parameter and selected magnitude of voltage, the corresponding scanning entry that derives from of foundation, described derivation scanning entry has selected magnitude of voltage and one group of derivation parameter；
Scan entry according to described reference scan entry and described derivation and do computed tomography.
2. computed tomography method as claimed in claim 1, is characterized in that, described derivation scan stripes purpose derives from parameter and is multiplied by the corresponding factor equal to the basic parameter of described reference scan entry.
3. computed tomography method as claimed in claim 1, is characterized in that, described reference scan entry and described derivation scanning entry form one indivisible group.
4. computed tomography method as claimed in claim 1, is characterized in that, scans in entry in described reference scan entry and described derivation, and adjacent scan stripes purpose scanning direction is contrary.
5. computed tomography method as claimed in claim 1, it is characterized in that, before computed tomography, described method also includes: judge whether described reference scan entry and described derivation scanning entry meet cooling requirement, only when all meeting, perform the step of computed tomography.
6. computed tomography method as claimed in claim 1, is characterized in that, before computed tomography, described method also includes: adjust described basic parameter；According to described reference voltage value, described basic parameter and selected magnitude of voltage, adjust described derivation parameter.
7. a ct apparatus, including:
One voltage sets up vertical unit (202), and it sets up a voltage group, and described voltage group includes at least one magnitude of voltage of X-ray tube；
One reference scan entry loading unit (204), it loads a reference scan entry, and described reference scan entry has a reference voltage value and one group of basic parameter；
One magnitude of voltage receives unit (205), and it receives the selection to the magnitude of voltage in described voltage group；
One derives from scan stripes order generates unit (206), it is according to described reference voltage value, described basic parameter and selected magnitude of voltage, the corresponding scanning entry that derives from of generation, described derivation scanning entry has selected magnitude of voltage and one group of derivation parameter；
One computed tomography unit (212), it scans entry according to described reference scan entry and described derivation does computed tomography.
8. ct apparatus as claimed in claim 7, is characterized in that, described derivation scan stripes purpose derives from parameter and is multiplied by the corresponding factor equal to the basic parameter of described reference scan entry.
9. ct apparatus as claimed in claim 7, is characterized in that, described reference scan entry and described derivation scanning entry form one indivisible group.
10. ct apparatus as claimed in claim 7, is characterized in that, described computed tomography unit (212) scans scanning entry adjacent in described reference scan entry and described derivation scanning entry with contrary scanning direction.
11. ct apparatus as claimed in claim 7, it is characterized in that, also include: a judging unit (210), it judges whether described reference scan entry and described derivation scanning entry meet cooling requirement, only when all meeting, described computed tomography unit (212) does computed tomography.
12. ct apparatus as claimed in claim 7, it is characterized in that, also include: one first adjustment unit (208), it is used for adjusting described basic parameter；One second adjustment unit (209), it is for according to described reference voltage value, described basic parameter and selected magnitude of voltage, adjusting described derivation parameter.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772324A (en) * | 2007-08-06 | 2010-07-07 | 株式会社日立医药 | X-ray ct device |
| WO2014048748A1 (en) * | 2012-09-27 | 2014-04-03 | Siemens Aktiengesellschaft | Automatic stipulation of a spectral distribution of x‑ray radiation of a number of x‑ray sources |
| CN103784159A (en) * | 2012-10-31 | 2014-05-14 | 上海西门子医疗器械有限公司 | Method of adjusting z-direction position and computed tomography scanning equipment |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772324A (en) * | 2007-08-06 | 2010-07-07 | 株式会社日立医药 | X-ray ct device |
| WO2014048748A1 (en) * | 2012-09-27 | 2014-04-03 | Siemens Aktiengesellschaft | Automatic stipulation of a spectral distribution of x‑ray radiation of a number of x‑ray sources |
| CN103784159A (en) * | 2012-10-31 | 2014-05-14 | 上海西门子医疗器械有限公司 | Method of adjusting z-direction position and computed tomography scanning equipment |
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Application publication date: 20160713 |