CN108209951A - Monitor the method and device of x-ray imaging equipment operation - Google Patents
Monitor the method and device of x-ray imaging equipment operation Download PDFInfo
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- CN108209951A CN108209951A CN201810002878.7A CN201810002878A CN108209951A CN 108209951 A CN108209951 A CN 108209951A CN 201810002878 A CN201810002878 A CN 201810002878A CN 108209951 A CN108209951 A CN 108209951A
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- ray imaging
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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
- A61B6/58—Testing, adjusting or calibrating apparatus or devices for radiation diagnosis
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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
- A61B6/58—Testing, adjusting or calibrating apparatus or devices for radiation diagnosis
- A61B6/586—Detection of faults or malfunction of the device
Abstract
The present invention relates to the field of medical instrument technology more particularly to a kind of methods for monitoring the operation of x-ray imaging equipment, it may include：Data for projection is obtained, the data for projection is obtained by the X ray that the bulb that detector receives is emitted；The data for projection is analyzed to obtain the focus parameter of oscillation of the bulb；The operating status of the x-ray imaging equipment is monitored according to the focus parameter of oscillation.The method of above-mentioned detection x-ray imaging equipment operation, the focus parameter of oscillation of x-ray imaging equipment is obtained by analyzing detector data, and it analyzes the focus parameter of oscillation and judges the current operation conditions of components such as current x-ray imaging equipment filament, anode target material, and then while detection x-ray imaging equipment running status is realized, failure predication can also be carried out to x-ray imaging equipment, prepare spare part in advance, it breaks down suddenly at runtime to avoid x-ray imaging equipment, so as to promote the service efficiency of x-ray imaging equipment and efficiency of service.
Description
Technical field
The present invention relates to the field of medical instrument technology, monitor what x-ray imaging Medical Devices were run more particularly to a kind of
Method and device.
Background technology
X-ray imaging equipment may include Medical X-ray diagnostic equipment, medical X-ray therapeutic equipment, electronic computer tomography
(Computed Tomography, abbreviation CT) equipment etc. is scanned, is by exciting X-ray beam, gamma-rays, ultrasonic wave etc.
Emitting radiation is irradiated patient, and receives the ray through human body according to detector, after image reconstruction, obtains patient
The profile scanning image of body region of interest, it is fast with sweep time, the features such as image clearly, it is widely used in various
In the inspection and treatment of disease.
X-ray imaging equipment is in long-term operational process, because such as mechanical wear, device replace improper, misoperation
Etc. factors, the generation for the failures such as filament exception, anode target rotary speed unstabilization occur can be caused.
At present, it could find, can not be realized to X when only there is above-mentioned failure in x-ray imaging equipment running process
The real-time monitoring of radiation imaging apparatus operation and failure predication, once making for x-ray imaging equipment can not only be reduced by breaking down
With efficiency, while it can also threaten the personal safety of subject.
Invention content
Based on this, it is necessary to provide the method and dress of monitoring x-ray imaging Medical Devices operation for above-mentioned technical problem
It puts, it can be while detection x-ray imaging equipment running status in real time, moreover it is possible to it is pre- that failure be carried out to x-ray imaging equipment
It surveys, breaks down suddenly at runtime to avoid x-ray imaging equipment, and then promote the service efficiency of x-ray imaging equipment, really
Protect the personal safety of subject.
A kind of method for monitoring the operation of x-ray imaging equipment, it may include：
Data for projection is obtained, the data for projection is obtained by the X ray that the bulb that detector receives is emitted；
The data for projection is analyzed to obtain the focus parameter of oscillation of the bulb；
The operating status of the x-ray imaging equipment is monitored according to the focus parameter of oscillation.
The method of above-mentioned detection x-ray imaging equipment operation, x-ray imaging equipment is obtained by analyzing data for projection
Focus parameter of oscillation, and learn that the components such as current x-ray imaging equipment filament, anode target material are worked as based on the focus parameter of oscillation
Preceding operation conditions, so realize detect x-ray imaging equipment running status while, moreover it is possible to x-ray imaging equipment into
Row failure predication breaks down suddenly at runtime to avoid x-ray imaging equipment, so as to promote making for x-ray imaging equipment
With efficiency, it is ensured that the personal safety of subject.
In an optional embodiment, the focus parameter of oscillation includes focus frequency of oscillation；The analysis throwing
Shadow data are to obtain the focus parameter of oscillation of the bulb；The x-ray imaging equipment is monitored according to the focus parameter of oscillation
Operating status, including：
The period of change of focal position is obtained according to the intensity distribution of the data for projection；
The focus frequency of oscillation is obtained according to the period of change；
The anode target material rotating speed of the x-ray imaging equipment is obtained according to the focus frequency of oscillation；
The anode target material rotating speed is compared with desired speed, whether to judge the operating status of the anode target material
Normally.
In an optional embodiment, the focus parameter of oscillation includes focus oscillation amplitude；The analysis throwing
Shadow data are to obtain the focus parameter of oscillation of the bulb；The x-ray imaging equipment is monitored according to the focus parameter of oscillation
Operating status, including：
The changing value of the focal position is calculated in the period of change to obtain the focus oscillation amplitude；
The anode target material that the x-ray imaging equipment is obtained according to the focus oscillation amplitude rotates shaking amplitude；
The anode target material rotation shaking amplitude of acquisition is compared with normal amplitude threshold range, with described in judgement
Whether the operating status of anode target material is normal.
In an optional embodiment, the method further includes：
The service life of the anode target material is predicted according to the focus parameter of oscillation；And/or
When monitoring the operating status exception of the x-ray imaging equipment according to the focus parameter of oscillation, output alarm
Information.
In an optional embodiment, the method further includes：
The collimator parameter of the x-ray imaging equipment is adjusted according to the focus parameter of oscillation；
Wherein, the collimator parameter includes collimation width and/or punctual device aperture position.
It is described according to the focus when the collimator parameter includes collimation width in an optional embodiment
Parameter of oscillation adjusts the collimator parameter of the x-ray imaging equipment, including：
When focus shock range is higher than preset shock range threshold value, increase the collimation width.
In an optional embodiment, when the collimator parameter includes collimation width and punctual device aperture position,
The collimator parameter of the x-ray imaging equipment according to the focus shakes parameter adjustment, including：
According to the focus shock range and focal position, collimator aperture position is adjusted.
In an optional embodiment, the method further includes：
It is obtained in focal position and focal spot size and the x-ray imaging equipment and visited according to the focus parameter of oscillation
Survey the intensity data distribution on device；
The x-ray imaging equipment is judged according to the distribution of the focal position, the focal spot size and the intensity data
Operating status it is whether normal.
A kind of method for monitoring the operation of x-ray imaging equipment, the x-ray imaging equipment include being built-in with rotary anode
The bulb of target, the method includes：
Obtain the current vibration acceleration of the bulb；
The speed-frequency of the anode target material is obtained according to the vibration acceleration；
The speed-frequency is matched with built-in frequency-service life information, to obtain the anode target material
Bearing service life information.
The method of above-mentioned detection x-ray imaging equipment operation is shaken by analyzing the current of bulb in x-ray imaging equipment
Dynamic acceleration obtains the speed-frequency of anode target material, and the speed-frequency based on the anode target material learns the axis of such as anode target material
The service life information held, and then while detection x-ray imaging equipment running status is realized, moreover it is possible to x-ray imaging is set
It is standby to carry out failure predication, it breaks down suddenly at runtime to avoid x-ray imaging equipment, so as to promote x-ray imaging equipment
Service efficiency, it is ensured that the personal safety of subject.
A kind of device for monitoring the operation of x-ray imaging equipment, the x-ray imaging equipment include bulb, in the bulb
The anode target material of rotary type is provided with, described device includes：
Vibrating sensor is set on the bulb, for sensing the current vibration acceleration of the bulb；
Data processor is connect with the vibrating sensor, for obtaining the anode target according to the vibration acceleration
The speed-frequency of material；
Detector is connect with the data processor, for the speed-frequency and built-in frequency-service life to be believed
Breath is matched, to obtain the bearing service life information of the anode target material.
The device of above-mentioned detection x-ray imaging equipment operation, ball is obtained by the vibrating sensor being arranged on bulb
The current vibration acceleration of pipe, and the current vibration acceleration obtains the rotating speed frequency of anode target material using data processor for analysis
Rate, and detector can then learn the service life information of the bearing of such as anode target material based on the speed-frequency of the anode target material,
And then while detection x-ray imaging equipment running status is realized, moreover it is possible to failure predication is carried out to x-ray imaging equipment, with
X-ray imaging equipment is avoided to break down suddenly at runtime, so as to promote the service efficiency of x-ray imaging equipment, it is ensured that by
The personal safety of inspection person.
Description of the drawings
Fig. 1 is the flow diagram for the method that the operation of x-ray imaging equipment is monitored in one embodiment；
Fig. 2 is that the flow of method run in one embodiment according to focus frequency of oscillation monitoring x-ray imaging equipment is shown
It is intended to；
Fig. 3 is the flow for monitoring the method that x-ray imaging equipment is run in another embodiment according to focus oscillation amplitude
Schematic diagram；
Fig. 4 is the schematic diagram of focal position period of change-amplitude；
Fig. 5 is the flow of the method run in one embodiment according to vibration acceleration frequency monitoring x-ray imaging equipment
Schematic diagram；
Fig. 6 is the structure diagram for the device that the operation of x-ray imaging equipment is monitored in one embodiment；
Fig. 7 is the modular structure schematic diagram for the device that the operation of x-ray imaging equipment is monitored in one embodiment；
Fig. 8 is the schematic diagram of x-ray imaging equipment in another embodiment；
Fig. 9 is the module diagram of x-ray imaging equipment fault diagnosis device in Fig. 8；
Figure 10 is the internal structure chart of x-ray imaging equipment fault diagnosis device in Fig. 8；
Figure 11 is the flow diagram of x-ray imaging equipment fault diagnosis method in an embodiment；
Figure 12 is the schematic diagram of intensity distribution in an embodiment；
Figure 13 is the schematic diagram that focal spot size value is obtained in an embodiment；
Figure 14 is the schematic diagram that focal position is obtained in an embodiment；
Figure 15 is the schematic diagram of x-ray imaging equipment in a specific embodiment；
Figure 16 is the flow diagram of x-ray imaging equipment fault diagnosis method in a specific embodiment.
Specific embodiment
In order to which the purpose of the present invention, technology medical diagnosis auxiliary system and advantage is more clearly understood, below in conjunction with attached
Figure and embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to
It explains the present invention, is not intended to limit the present invention.
At present, the anode target material of bulb is usually to work under a certain constant rotating speed in x-ray imaging equipment, but due to
Difference between designing scheme or processing technology etc. can cause between the bulb of different model, the different balls of same model
There may be anode target materials between pipe to shake amplitude difference.Based on this, in embodiments herein, provide according to focus
(Focal spot) change in location measure anode target rotating speed, shake etc. detect the method for x-ray imaging equipment running status with
And the method for adjusting collimation, that is, pass through the oscillation of bulb focal position in x-ray imaging equipment (such as CT medical imaging devices)
The focuses such as frequency, oscillation amplitude parameter of oscillation come determine anode target shake (Anode Wobbling), set to monitor x-ray imaging
Standby operating status, and can collimation width and/or location information etc. be adjusted based on parameter of oscillation and focal position information
Collimator parameter, and then promote the utilization ratio of dosage.Meanwhile can also current bulb be obtained according to the frequency of oscillation of focal position
The speed of anode target material, and can determine whether the rotating speed of bulb anode target material is normal based on the speed.
Fig. 1 is the flow diagram for the method that the operation of x-ray imaging equipment is monitored in one embodiment.As shown in Figure 1, one
The method of kind monitoring x-ray imaging equipment operation, can be applied to the oscillation frequency by bulb focal position in x-ray imaging equipment
The focuses parameter of oscillation such as rate, oscillation amplitude determines that anode target shakes (Anode Wobbling), it may include following steps：
Step S11 obtains the data for projection of x-ray imaging equipment.
Specifically, being detected using x-ray imaging equipment, the process of imaging or treatment being scanned to subject
In, bulb transmitting X ray pass through target area after irradiate on the detector, i.e., the X ray received based on the detector can
Generate data for projection.For example, during imaging is scanned to subject using medical imaging devices such as CT, MR,
Detector in x-ray imaging equipment is acquired, to obtain data for projection.Wherein, nyquist sampling law can be based on
Carry out acquired projections data, i.e. the sample frequency of gathered data is more than the rotating speed of anode target material, for example, by using more than anode target material
Twice of sample frequency of speed-frequency carries out the acquisition of data for projection.
Step S12 analyzes data for projection to obtain the focus parameter of oscillation of bulb.
Specifically, after being analyzed, handled based on data for projection acquired in step S11, focus oscillation can be calculated
The focuses parameter of oscillation such as frequency and focus shock range, and such as focal position, coke can also be obtained based on the focus parameter of oscillation
The information such as the intensity data distribution in spot size and x-ray imaging equipment on detector.
Step S13 monitors the operating status of x-ray imaging equipment according to focus parameter of oscillation.
Specifically, can x-ray imaging equipment be monitored according to focus parameter of oscillation acquired in step S12 in real time
Operating status.For example, frequency acquisition anode target material rotating speed can be shaken according to focus, anode target material is obtained according to focus shock range
Shaking amplitude etc. is rotated, to obtain the operation conditions of x-ray imaging equipment Anodic target；It can be according to focal position, focus ruler
Intensity data distribution in very little, focus frequency of oscillation, focus shock range and x-ray imaging equipment on detector etc. obtains
Operation conditions of filament in x-ray imaging equipment etc.；Monitoring X ray can be realized by the operation conditions of comprehensive all parts
The purpose of imaging device operating status.
It, can also be by triggering warning device, and with all in addition, when monitoring that X camera shooting imaging device operations occur abnormal
Such as sound, light and/or vibration mode are by being presented corresponding warning message, and the alarm on warning device or controlling equipment
It may include the relevent informations such as the module to break down, the type of failure and Failure elimination suggestion in information.
The method of above-mentioned detection x-ray imaging equipment operation, x-ray imaging equipment is obtained by analyzing data for projection
Focus parameter of oscillation, and learn that the components such as current x-ray imaging equipment filament, anode target material are worked as based on the focus parameter of oscillation
Preceding operation conditions, so realize detect x-ray imaging equipment running status while, moreover it is possible to x-ray imaging equipment into
Row failure predication breaks down suddenly at runtime to avoid x-ray imaging equipment, so as to promote making for x-ray imaging equipment
With efficiency, it is ensured that the personal safety of subject.
Fig. 2 is that the flow of method run in one embodiment according to focus frequency of oscillation monitoring x-ray imaging equipment is shown
It is intended to.As shown in Fig. 2, in another optional embodiment, a kind of method for monitoring the operation of x-ray imaging equipment, it may include
Following steps：
Step S21 obtains the data for projection of x-ray imaging equipment.
Specifically, using x-ray imaging equipment carry out such as test or subject is scanned imaging, treatment
In the process, data for projection can be obtained by carrying out data acquisition to detector.
Step S22 obtains the period of change of focal position according to the intensity distribution of data for projection.
Specifically, it analyzed, handled by the intensity distribution to data for projection acquired in step S21, to obtain X
The situation of change of focal position in radiation imaging apparatus, and then obtain the period of change of focal position.
Step S23 obtains focus frequency of oscillation according to period of change.
Step S24 obtains the anode target material rotating speed of x-ray imaging equipment according to focus frequency of oscillation.
Step S25 compares anode target material rotating speed with desired speed, whether to judge the operating status of anode target material
Normally；Wherein, above-mentioned desired speed is the rated speed that is set according to instrument performance, and can be by judging that anode target material turns
Whether whether difference between speed and desired speed determine the operating status of anode target material in the preset error range of instrument
Normally.For example, if the difference between anode target material rotating speed and desired speed can determine except above-mentioned preset error range
The failure of current anode target material；Alternatively, the trend changed over time according to error, predicts the service life of bulb, prepares in advance
Spare part improves efficiency of service.
Fig. 3 is the flow for monitoring the method that x-ray imaging equipment is run in another embodiment according to focus oscillation amplitude
Schematic diagram, Fig. 4 are the schematic diagrames of focal position period of change-amplitude；In Fig. 4 X-axis be focal position period of change (View), Y
Axis is focal position amplitude of variation (Slice).As shown in figs. 34, in another optional embodiment, a kind of monitoring X ray
The method of imaging device operation, it may include following steps：
Step S31 obtains the data for projection of x-ray imaging equipment.
Step S32 calculates the changing value of focal position to obtain focus oscillation amplitude in period of change.
Specifically, as shown in figure 4, by such as A (227,5.906), B (182,6.223), C (1655,5.787), D
Multiple point coordinates such as (1541,6.331), E (2615,5.88), F (2578,6.452) are calculated, i.e., by calculating focus
The displacement distance of (Focal spot) in the Y-axis direction can calculate focus oscillation amplitude in current X-ray imaging device at this time
Etc. parameters.
Step S33, the anode target material that x-ray imaging equipment is obtained according to focus oscillation amplitude rotate shaking amplitude.
Anode target material shaking amplitude and normal amplitude threshold range are compared by step S34, to judge anode target material
Whether operating status is normal.For example, if anode target material shaking amplitude can know current sun not in normal amplitude threshold range
The failure of pole target.
In another optional embodiment, as shown in figs. 34, vibrated according to focus acquired in above-described embodiment
Parameter, to adjust the collimators parameters such as the collimation width of collimator in x-ray imaging equipment and/or location information, with collimation
Device is modified.For example, when focus oscillation amplitude is higher than preset oscillation amplitude threshold value, it can be by increasing the collimation of collimator
Width is modified, and the position of collimator opening can be also adjusted according to parameters such as focus oscillation amplitude and focal positions, with
The further utilization ratio for promoting dosage and the quality of x-ray imaging device scan imaging.
It, as shown in figs. 2 to 4, can also be according to anode acquired in above-described embodiment in another optional embodiment
The parameters such as target rotating speed and anode target material rotation shaking amplitude, matching comparison is carried out, and then can be real by accumulating data with history
Now to the prediction of the service life of anode target material.
In another optional embodiment, as shown in figs. 2 to 4, on the basis of above-described embodiment, product may also be combined with
Between timesharing and focal position period of change (View) value, to calculate the frequency of oscillation of focal position (i.e. turn of anode target material
Speed), to judge bulb Anodic target whether in normal condition.
It, as shown in figs. 2 to 4, can also be according to upper on the basis of above-described embodiment in another optional embodiment
The relevant informations such as focus parameter of oscillation and the data for projection of acquisition are stated, obtain focal position, the focal spot size of x-ray imaging equipment
And intensity data distribution in x-ray imaging equipment on detector etc.；It subsequently can be according to focal position, focal spot size and X
Intensity data distribution in radiation imaging apparatus on detector etc. judges whether the operating status of x-ray imaging equipment is normal.
Further, by the way that the data in focal position, focal spot size and x-ray imaging equipment on detector are strong
Degree distribution etc. is compared respectively with preset rated value, it may be determined that each focus parameter of oscillation is with the presence or absence of abnormal.Work as judgement
Intensity data distribution into x-ray imaging equipment on detector is consistent, focal spot size is normal, and focal position is abnormal, then says
There are electric field controls failure of removal in bright x-ray imaging equipment；When determining, the data in x-ray imaging equipment on detector are strong
Degree distribution is inconsistent, focal position is normal, and focal spot size is abnormal, then illustrates that there are High voltage output mistakes in x-ray imaging equipment
Imitate failure；When determining, the distribution of the intensity data in x-ray imaging equipment on detector is inconsistent, and focal position and focus ruler
It is very little abnormal, then illustrate that there are the failures such as high pressure failure or bulb failure in x-ray imaging equipment；When determining focus characteristic not
When stablizing, then illustrate that there are focal point control Module Fail failures in x-ray imaging equipment.In addition, finding x-ray imaging equipment
During middle failed module there are X ray, the data such as other daily records or feedback parameter are may also be combined with, to failed module into advancing one
The concrete analysis of step.
In addition, in another optional embodiment, it can also be by analyzing the intensity data on detector
It can also learn the abnormal conditions of tube filament.For example, due to tube filament it is normal when, data for projection intensity is according to certain rule
Rule is uniformly distributed, therefore obtains current intensity data distribution by calculating, to obtain the size and shape of bulb focus；Work as ball
When spot silk occurs abnormal, it is abnormal will to correspond to appearance for Beam distribution on detector.Meanwhile when x-ray system high pressure generator
Tube voltage output abnormality when being such as less than normal value, may result in the effective electron density of tube filament transmitting with respect to normal condition
Under it is relatively low, intensity data and focus point shape under normal circumstances can be significantly different.
The method of detection x-ray imaging equipment operation in above-described embodiment, can be by analyzing ball in x-ray imaging equipment
The current vibration acceleration of pipe obtains the speed-frequency of anode target material, and the speed-frequency based on the anode target material learns such as sun
The service life information of the bearing of pole target, and then while detection x-ray imaging equipment running status is realized, moreover it is possible to X
Radiation imaging apparatus carries out failure predication, breaks down to avoid x-ray imaging equipment, is penetrated so as to promote X suddenly at runtime
The service efficiency of line imaging equipment, it is ensured that the personal safety of subject.Meanwhile pass through intensity distribution, the focus to data for projection
Shape, focal spot size etc. are analyzed, and then can timely monitor that the x-ray system failure simultaneously can quickly judge according to its otherness
Go out exception, by the failure found timely report to system convenient in time repair, so as to effectively avoid faulty equipment after
Continuous use causes clinical scanning image artifact occur.
Fig. 5 is the flow of the method run in one embodiment according to vibration acceleration frequency monitoring x-ray imaging equipment
Schematic diagram.Since the Main Patterns of current bulb failure are bulb bearing failure, and due to currently to the anode target material axis of bulb
The service life held lacks effective predicting means, can only just be found, and then can be brought to user much when bulb breaks down
It is uncertain.So as shown in figure 5, present invention also provides the method that another monitoring x-ray imaging equipment is run, can wrap
Include following steps：
Step S41 obtains the vibration acceleration of bulb.
Specifically, when the anode target material in bulb rotates, it can be by using vibrating sensings such as acceleration transducers
Device acquires current vibration acceleration.
Step S42 obtains the speed-frequency of anode target material according to vibration acceleration.
Specifically, the vibration acceleration in step S41, spectrum information is obtained by using Fourier transformation, from
And the speed-frequency of current anode target material can be obtained.
Step S43 detects the current operating status of x-ray imaging equipment according to speed-frequency.
Specifically, it can be matched by such as built-in frequency-service life information, to obtain the bearing of anode target material
State, and can the current operating status of x-ray imaging equipment be judged according to the bearing state.
Further, it can be accumulated, counted according to historical data, analyzing the above-mentioned frequency-service life information of acquisition, and can
Realized and interacted by specific communication mode homologous ray, bulb bearing state is recorded in real time, and by the data of record and
Above-mentioned frequency-service life information is matched, is compared, to predict the bearing life of bulb.
Fig. 6 is the structure diagram for the device that the operation of x-ray imaging equipment is monitored in one embodiment, and Fig. 7 is a reality
Apply the modular structure schematic diagram for the device that the operation of x-ray imaging equipment is monitored in example.As shown in figs. 6-7, in the embodiment of the present application
A kind of device for detecting the operation of x-ray imaging equipment is additionally provided, x-ray imaging equipment may include being provided with rotary anode target
The bulb 5 of material 52, the device may include vibrating sensor 53, data processor 55 and detector 56.Wherein, vibrating sensor 53
Anode target material 52 can be closed on to be fixedly installed in region 54 on shell 51, available for sensing the current vibration acceleration of bulb 5；
Data processor 55 is connect with vibrating sensor 53, available for obtaining the speed-frequency of anode target material according to vibration acceleration；Inspection
Device 56 is surveyed to connect with data processor 55, available for speed-frequency is matched with built-in frequency-service life information, with
Obtain the bearing service life information of anode target material.
In the above-described embodiment, accelerated by the vibrating sensor being arranged on bulb to obtain the current vibration of bulb
Degree, and the current vibration acceleration obtains the speed-frequency of anode target material using data processor for analysis, and detector then can base
The service life information of the bearing of such as anode target material is learned in the speed-frequency of the anode target material, and then is realizing that detecting X penetrates
While line imaging equipment running status, moreover it is possible to failure predication is carried out to x-ray imaging equipment, to avoid x-ray imaging equipment
It breaks down suddenly at runtime.
Further, since the rotary anode of bulb is by motor-driven, and motor can not be kept away in rotary course
Exempt to cause vibration, thus in the present embodiment by increase on bulb shell a vibrating sensor (such as acceleration transducer) come
Acceleration signal is recorded, and spectrum information is obtained using Fourier transformation, so as to obtain current anode target material rotating speed frequency
Rate information so as to obtain the bearing state of bulb, subsequently passes through CANOpen agreements, SPI protocol, RS485 agreements etc. again
Specific communication mode is interacted with scanning imaging system communicate, with it is real-time record bulb bearing state while, to institute
The historical data that the data of acquisition add up with system is compared, and then predicts bulb bearing service life, while can also be incited somebody to action pre-
The data of survey carry out output and show, are carried out ahead of time note that so as to promote making for x-ray imaging equipment with system for prompting operating personnel
With efficiency, it is ensured that the personal safety of subject.
Fig. 8 is the schematic diagram of x-ray imaging equipment in an embodiment.As described in Figure 8, the present embodiment provides a kind of X ray
Imaging device can include X ray bulb 10, detector 11 and x-ray imaging equipment fault diagnosis device 12.Wherein, X ray
Bulb 10 includes tube filament 101 and anode target material 102, and a large amount of electronics is generated simultaneously under external high pressure by tube filament 101
On bombardment to anode target material 102, so as to generate a focus on anode target material 102, X ray can be generated from the focal point,
The X ray can generate projection on the surface of detector 11, and the specific data of the X ray are further received by detector 11
(namely data for projection).X-ray imaging equipment fault diagnosis device 12 can be communicated to connect with detector 11, for receiving by visiting
The current collected data for projection of device 11 is surveyed, and the data are further processed to judge that current X-ray imaging device is
It is no to produce failure.
Specifically, Fig. 9 is the module diagram of x-ray imaging equipment fault diagnosis device in Fig. 8.As shown in figure 9, X is penetrated
Line imaging equipment fault diagnosis device 12 may further include data acquisition module 121 and data processing module 122, by data
Acquisition module 121 obtains above-mentioned data for projection, and by the data for projection of acquisition be transmitted to data processing module 122 with into
Row data processing.Further, data processing module 122 can also include computing unit 1221, determination unit 1222, reference value
Acquiring unit 1223 and judging unit 1224.Specifically, computing unit 1221 is used to be believed according to the intensity of data for projection and position
Breath establishes the intensity distribution situation of the data for projection, determination unit 1222 for determined from above-mentioned intensity distribution one or
Several characteristic parameters.Reference value acquiring unit 1223 can be after determination unit determines characteristic parameter, from x-ray imaging equipment
Corresponding reference value is obtained in the preset database of trouble-shooter, and by judging unit 1224 to characteristic parameter and reference
Value is compared, if when differing greatly of the two, can determine failure currently to have occurred in system X, and can pass through
The empirical analysis of operating personnel determines to generate the possible cause of failure.
In some embodiments, determination unit can obtain a maximum intensity value, and by reference value according to intensity distribution
Acquiring unit obtains corresponding standard maximum intensity value.Judging unit can to the maximum intensity value and standard maximum intensity value into
Row difference operation simultaneously obtains a difference, when the difference is more than a threshold value, then can determine that current X-ray imaging device occurs
Failure.Further, due to being that the intensity of the data for projection obtained produces exception, therefore it may determine that and be likely to X ray
The high pressure generator (not shown) or bulb of imaging device are abnormal, so as to cause X-ray energy it is excessively high.
Figure 10 is the internal structure chart of x-ray imaging equipment fault diagnosis device in Fig. 8.As shown in Figure 10, above-mentioned X is penetrated
Line imaging equipment fault diagnosis device may include such as processor connected by system bus, non-volatile memory medium, interior
Memory, communication interface, display device and input unit etc..Above-mentioned processor can be used for providing calculating and control function, with
Support the operation of whole operation console.The behaviour of the types such as Unix or Windows can be stored in non-volatile memory medium
Make system.Above-mentioned built-in storage can provide running environment for the operating system in non-volatile memory medium, the built-in storage
In can be stored with computer-readable instruction fetch, and when the computer-readable instruction fetch is performed by above-mentioned processor, may be such that processing
The method that device performs the x-ray imaging equipment fault diagnosis in the embodiment of the present application.Communication interface can be used for scanning gantry and
Communication connection, such as control instruction can be sent to scanning gantry, downloads image quality parameter from upper.Above-mentioned display device can be
Liquid crystal display or electric ink display screen etc.；Input unit can be the touch layer or calculating covered on display screen
Physical button, trace ball or touch panel for being set on machine equipment etc. can also be external such as physical keyboards, virtual key
Disk, Trackpad or mouse etc..It will be understood by those skilled in the art that the structure shown in Figure 10, only with the application side
The block diagram of the relevant part-structure of case does not form the restriction of ustomer premises access equipment that application scheme is applied thereon, specifically
Ground ustomer premises access equipment can include either combining certain components or with difference than components more or fewer shown in figure
Component arrangement.
Figure 11 is the flow diagram of x-ray imaging equipment fault diagnosis method in an embodiment.Based on above-described embodiment
In x-ray imaging equipment fault diagnosis device, the present embodiment further provides for a kind of x-ray imaging equipment fault diagnosis side
Method, as shown in figure 11, this method may comprise steps of：
Step S1：Obtain the data for projection received by detector.
X ray is had issued, and after projection on the detector, detector can collect a series of in X ray bulb.It can
To obtain these, with carry out subsequently judge x-ray imaging equipment whether the operation of failure.
Step S2:Characteristic parameter to obtain current X-ray is handled data for projection.
After data for projection is got, can data processing further be carried out to the data, use and obtain these data
Characteristic parameter.
Figure 12 is the schematic diagram of intensity distribution in an embodiment.Specifically, as shown in figure 12, in synchronization, detection
The data for projection that device is received is fixed, i.e., for all correspondences of the every bit on detector, there are one data for projection.Wherein, by
Different in the launching position of X ray on the detector, intensity may also be different.Therefore for each projection that detector is received
Data, all corresponding X-ray intensity there are one at its location information on the detector and the position.It can be penetrated according to the X
Line intensity and location information determine X ray distribution situation on the detector namely the intensity distribution of data for projection.
Further, after the intensity distribution is got, the intensity point can be empirically obtained according to the intensity distribution
The characteristic parameter of cloth is to characterize the characteristic of current X-ray.
Step S3：Obtain the reference value corresponding with characteristic parameter to prestore in x-ray imaging equipment.
Specifically, it after characterization is digitized to the situation of current X-ray with characteristic parameter, can again obtain in X
Prestore in radiation imaging apparatus with the corresponding reference value of this feature parameter.The reference value is set from previous x-ray imaging
The standby empirical data that can characterize X ray current signature acquired in normal operation.
Step S4：Characteristic parameter and reference value are compared, and whether x-ray imaging equipment is determined according to comparison result
It breaks down.
Specifically, since reference value is the experience that is used to characterize X ray of the previous x-ray imaging equipment in normal operation
Data, and characteristic parameter is currently obtained for characterizing the data of X ray, therefore characteristic parameter and reference value can be compared
Compared with, if the difference of the two is excessive, can be confirmed current X-ray imaging device be not on normal work state, i.e., this
When x-ray imaging equipment failure has occurred.
Above-mentioned x-ray imaging equipment fault diagnosis method can be carried out by obtaining detector data, and to it at data
Reason to further determine that the characteristic parameter of detector data, and can obtain with the corresponding reference value of characteristic parameter, pass through ratio
Compared with there is no significant difference between characteristic parameter and reference value, to determine whether current X-ray imaging device breaks down.
In order to enable those skilled in the art to more clearly understand the present invention, based on what is provided in above-described embodiment
X-ray imaging equipment fault diagnosis method, is below further elaborated the above method.
Illustratively, please continue to refer to Figure 12, due to the intensity of X ray depend on bulb transmitting X ray quantity and
The high pressure and tube current situation loaded in current X-ray imaging device, therefore can be sentenced by obtaining the strength conditions of X ray
Whether current system X of breaking breaks down.In some embodiments, can by according to certain sequence (such as by row or by row
Sequence) intensity value at more each position, and determine a maximum intensity value one by one.In the present embodiment, it is maximum
Intensity value is 6 μ Sv.Later, corresponding standard maximum intensity value can be obtained.For example, by many experiments it can be found that in X
During system worked well, the maximum value of the intensity of collected X ray can determine one always between 4 μ Sv and 5 μ Sv
A standard maximum intensity value is 4.5 μ Sv, if the difference of actual strength value and the normal intensity value is beyond the μ Sv of -0.5 μ Sv~+0.5
Range, then can determine current X-ray imaging device generate X-ray energy it is excessively high, i.e., x-ray imaging equipment have occurred therefore
Barrier.In the present embodiment, since the practical maximum intensity value of acquisition is between 6 μ Sv, with 4.5 μ Sv of standard maximum intensity value
Difference for 6 μ Sv-4.5 μ Sv=1.5 μ Sv, have exceeded the range allowed, hence, it can be determined that current system X have occurred therefore
Barrier.It is possible to further determine to may be overtension that abnormal electrical power supply such as loads；Or may be that bulb generates exception
The X-ray beam in unit area is caused to increase, causes the intensity of the collected data for projection of detector to increase.
It should be noted that in other embodiments, features described above parameter can also be X ray minimal intensity value or
Average intensity value, at this point it is possible to obtain corresponding X ray standard minimal intensity value or standard average intensity value to carry out after
It is continuous relatively and to determine whether current X-ray imaging device breaks down, specific comparison procedure and the phase in above-described embodiment
Similar, this will not be repeated here.
In other embodiments, the size value of focus can also be determined according to intensity distribution, is obtained by comparing practical
Focal spot size value and standard focal spot size value, determine whether current system X breaks down.
Specifically, since focus during beam bombardment anode target material by generating, therefore tube filament breaks down and causes
Electron beam reduces or causes electron escape in anode target material appearance damage rather than be captured, and is likely to cause focus
Size reduce.
Figure 13 is the schematic diagram that focal spot size value is obtained in an embodiment.As shown in figure 13, in the present embodiment, Ke Yiqu
The size in region (region that i.e. in figure box framed) of the intensity more than 3 μ Sv is as focal spot size value.In the present embodiment
In, the focal spot size value actually obtained is confirmed as 4mm2(i.e. 2mm × 2mm=4mm2).The present invention is implemented for convenience of description
Example, might as well assume focal spot size value under normal circumstances between 4.4mm2With 4.8mm2Between, you can with a standard focus ruler
Very little value is 4.6mm2, and can determine that a threshold value is -0.2mm2~+0.2mm2.However, in the present embodiment, it is practical to obtain
Focal spot size value be 4mm2, standard focal spot size is 4.6mm2, the difference of the two is 4mm2-4.6mm2=-0.6mm2, have exceeded
Above-mentioned threshold value.Therefore it can determine that failure has occurred in current X-ray imaging device, and may determine that abort situation may be penetrated for X
The tube filament or anode target material of ray tube.
In some embodiments, features described above parameter can also be the position of focus, at this time can be by obtaining standard coke
Point position, practical focal position is compared with standard focal position, if factual focus location and standard focal position
Offset exceeds some given area, then can determine x-ray imaging device fails.
Figure 14 is the schematic diagram that focal position is obtained in an embodiment.Specifically, as shown in figure 14, it may be determined that maximum strong
Position where spending (5 μ Sv i.e. shown in figure) is the position where focus in current X-ray imaging device, coordinate be (2,
2).For the ease of illustrating the embodiment of the present invention, it there is no harm in tentative standard focal position and be arranged at (3,1), and allow focus position
The offset put is 1mm, and in other words, the point within justifying as illustrated in the drawing can be viewed as residing for focus under normal circumstances
Position, i.e., the threshold value of the offset be 0mm~1mm.However, in the present embodiment, practical focal position and standard focus
Offset between position isHave exceeded above-mentioned threshold value.Therefore it can determine that x-ray imaging is set
It is standby that failure has occurred.Further, since focus is that the beam bombardment anode target material sent out by tube filament generates, therefore can be with
Determine to may be since tube filament partial short circuit causes Beam distribution unevenness or anode target material to shift, cause coke
It moves point position.
Figure 15 is the schematic diagram of x-ray imaging equipment in a specific embodiment.As shown in figure 15, the present embodiment provides one kind
Specific x-ray imaging equipment, can include power supply 60, console 61, high pressure generator 62, detector 63, collimator 64 and X
Ray tube 65.Wherein, power supply 60 is electrically connected with console 61 for powering to console 61, and console 61 can be with detector
63 communicate to connect and are connect with high pressure generator 62, high pressure generator 62 and X ray bulb 65 can by high-tension cable into
Row electrical connection, collimator 64 are arranged between X ray bulb 65 and detector 63.Further, X ray bulb 65 can also wrap
Include the tube filament 651 being oppositely arranged and anode target material 652.
Figure 16 is the flow diagram of x-ray imaging equipment fault diagnosis method in a specific embodiment, as shown in figure 16,
Based on above-mentioned x-ray imaging equipment, the present embodiment provides a kind of specific x-ray imaging equipment fault diagnosis method, this method
It can include：
Step S70：Sweep parameter is set.
Specifically, it before scanning starts, needs first to set sweep parameter, for example scanning voltage and sweep current and sweeps
The time retouched.In the present embodiment, in order to obtain considerable X ray, can setting scanning voltage, sweep current can for 1.2kV
To be set as 80mA, sweep time could be provided as 4.5s, i.e. X ray bulb is stopped after X ray 4.5s is sent out.
Step S71：Collimation position is set.
Specifically, the position of collimator 64 can be adjusted so that the X ray that X ray bulb 65 emits passes through collimator 64
It can all be received after collimation by detector 63.
Step S72：Scan simultaneously gathered data.
Specifically, high pressure generator 62 can be controlled to export a high pressure by console 61, which can be with trigger ball
Spot silk 641 sends out a large amount of electronics to form electron beam, and electron beam can bombard one focus of formation on anode target material 652,
A large amount of X ray can be generated in the focal point, and the surface of detector 63 is incident upon after being collimated via collimator 64.Detector 63
The data for the projection that X ray is formed can be acquired as data for projection, and these data for projection are transferred to console 61, by
Console 61 carries out further data processing to the data for projection.
Step S73：Analyze gathered data.
Specifically, console 61 can obtain the intensity and location information of data for projection, and be organized into intensity distribution, then root
Determine that maximum intensity value, focal spot size value, focal position etc. can characterize the characteristic parameter of X ray according to the intensity distribution.
Further, console 61 can obtain corresponding standard maximum intensity value, standard focal spot size value and standard
The reference values such as focal position, and be respectively compared characteristic parameter and corresponding reference value, if the difference of the two is more than to allow
Range, it is determined that failure has occurred in x-ray imaging equipment.The processing procedure and above-described embodiment of data for projection in the present embodiment
In it is similar, this will not be repeated here.
Step S74：Interpretation of result.
It specifically, can be by virtue of experience further true by operating personnel after determining that failure has occurred in x-ray imaging equipment
Fixed possible failure cause.For example, when maximum intensity value is normal, and during the exception of focal position, it may be determined that may be that power supply loses
Effect.When maximum intensity value is abnormal, and focal position is normal, it may be determined that may be high pressure generator failure.Work as maximum intensity
When value, focal position, focal spot size value are abnormal, it may be determined that may be high pressure generator failure or X ray bulb
Failure.In other embodiments, can be combined with x-ray imaging equipment work log or feedback parameter data with further
Determine specific invalid position.
A kind of x-ray imaging equipment is present embodiments provided, including memory, processor and storage on a memory and can
The computer program run on a processor, the processor realize following steps when performing the computer program：Obtain institute
State the data for projection received by detector；Characteristic parameter to obtain current X-ray is handled the data for projection；It obtains
Take the reference value corresponding with the characteristic parameter to prestore；The characteristic parameter and the reference value are compared, and according to
Comparison result determines whether the x-ray imaging equipment breaks down.
The present embodiment additionally provides a kind of computer readable storage medium, is stored thereon with computer program, the computer
Following steps are realized when program is executed by processor：Obtain the data for projection received by the detector；To the projection number
According to the characteristic parameter handled to obtain current X-ray；Obtain the reference value corresponding with the characteristic parameter to prestore；By institute
It states characteristic parameter to be compared with the reference value, and determines whether the x-ray imaging equipment occurs event according to comparison result
Barrier.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a non-volatile computer and can be read
In storage medium, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage is situated between
Matter can be magnetic disc, CD, read-only memory (Read-Only Memory, ROM) etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that those of ordinary skill in the art are come
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
- A kind of 1. method for monitoring the operation of x-ray imaging equipment, which is characterized in that including：Data for projection is obtained, the data for projection is obtained by the X ray that the bulb that detector receives is emitted；The data for projection is analyzed to obtain the focus parameter of oscillation of the bulb；The operating status of the x-ray imaging equipment is monitored according to the focus parameter of oscillation.
- 2. according to the method described in claim 1, it is characterized in that, the focus parameter of oscillation includes focus frequency of oscillation；Institute The analysis data for projection is stated to obtain the focus parameter of oscillation of the bulb；The X is monitored according to the focus parameter of oscillation The operating status of radiation imaging apparatus, including：The period of change of focal position is obtained according to the intensity distribution of the data for projection；The focus frequency of oscillation is obtained according to the period of change；The anode target material rotating speed of the x-ray imaging equipment is obtained according to the focus frequency of oscillation；The anode target material rotating speed is compared with desired speed, to judge the operating status of the anode target material whether just Often.
- 3. according to the method described in claim 1, it is characterized in that, the focus parameter of oscillation includes focus oscillation amplitude；Institute The analysis data for projection is stated to obtain the focus parameter of oscillation of the bulb；The X is monitored according to the focus parameter of oscillation The operating status of radiation imaging apparatus, including：The period of change of focal position is obtained according to the intensity distribution of the data for projection；The changing value of the focal position is calculated in the period of change to obtain the focus oscillation amplitude；The anode target material that the x-ray imaging equipment is obtained according to the focus oscillation amplitude rotates shaking amplitude；The anode target material rotation shaking amplitude of acquisition is compared with normal amplitude threshold range, to judge the anode Whether the operating status of target is normal.
- 4. it according to the method described in claim 1, it is characterized in that, further includes：The service life of the anode target material is predicted according to the focus parameter of oscillation；And/orWhen monitoring the operating status exception of the x-ray imaging equipment according to the focus parameter of oscillation, warning message is exported.
- 5. it according to the method described in claim 1, it is characterized in that, further includes：The collimator parameter of the x-ray imaging equipment is adjusted according to the focus parameter of oscillation；Wherein, the collimator parameter includes collimation width and/or punctual device aperture position.
- 6. according to the method described in claim 5, it is characterized in that, the collimator parameter include collimation width when, described The collimator parameter of the x-ray imaging equipment is adjusted according to the focus parameter of oscillation, including：When focus shock range is higher than preset shock range threshold value, increase the collimation width.
- 7. according to the method described in claim 5, it is characterized in that, the collimator parameter includes collimation width and punctual device is opened During mouth position, the collimator parameter of the x-ray imaging equipment according to the focus shakes parameter adjustment, including：According to the focus shock range and the focal position, collimator aperture position is adjusted.
- 8. it according to the method described in claim 1, it is characterized in that, further includes：Detector in focal position and focal spot size and the x-ray imaging equipment is obtained according to the focus parameter of oscillation On intensity data distribution；The fortune of the x-ray imaging equipment is judged according to the distribution of the focal position, the focal spot size and the intensity data Whether row state is normal.
- A kind of 9. method for monitoring the operation of x-ray imaging equipment, which is characterized in that the x-ray imaging equipment includes being built-in with The bulb of rotary anode target, the method includes：Obtain the vibration acceleration of the bulb；The speed-frequency of the anode target material is obtained according to the vibration acceleration；The speed-frequency is matched with built-in frequency-service life information, to obtain the bearing of the anode target material Service life information.
- 10. a kind of device for monitoring the operation of x-ray imaging equipment, which is characterized in that the x-ray imaging equipment includes bulb, The anode target material of rotary type is provided in the bulb, described device includes：Vibrating sensor is set on the bulb, for sensing the current vibration acceleration of the bulb；Data processor is connect with the vibrating sensor, for obtaining the anode target material according to the vibration acceleration Speed-frequency；Detector is connect with the data processor, for by the speed-frequency and built-in frequency-service life information into Row matching, to obtain the bearing service life information of the anode target material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810002878.7A CN108209951A (en) | 2018-01-02 | 2018-01-02 | Monitor the method and device of x-ray imaging equipment operation |
| US16/138,930 US10660601B2 (en) | 2018-01-02 | 2018-09-21 | Systems and methods for monitoring a medical device |
| US16/881,057 US11213272B2 (en) | 2018-01-02 | 2020-05-22 | Systems and methods for monitoring a medical device |
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| CN110057610A (en) * | 2019-04-25 | 2019-07-26 | 上海联影医疗科技有限公司 | Vibration information determines method, apparatus, medical imaging equipment and storage medium |
| CN110547819A (en) * | 2019-09-11 | 2019-12-10 | 山东新华医疗器械股份有限公司 | Intelligent control device and method for CT |
| CN110720938A (en) * | 2018-10-23 | 2020-01-24 | 北京信立锐成医疗器械有限公司 | Monitoring system and method for X-ray bulb tube |
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| CN112325812A (en) * | 2020-09-23 | 2021-02-05 | 武汉钢铁有限公司 | Fault detection method and system for thickness gauge X-ray generating device |
| CN113796875A (en) * | 2021-09-16 | 2021-12-17 | 上海联影医疗科技股份有限公司 | Method and system for monitoring motion state of medical scanning equipment and electronic device |
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| CN113796875A (en) * | 2021-09-16 | 2021-12-17 | 上海联影医疗科技股份有限公司 | Method and system for monitoring motion state of medical scanning equipment and electronic device |
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