CN211484619U - X-ray imaging system - Google Patents
X-ray imaging system Download PDFInfo
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- CN211484619U CN211484619U CN201921362195.9U CN201921362195U CN211484619U CN 211484619 U CN211484619 U CN 211484619U CN 201921362195 U CN201921362195 U CN 201921362195U CN 211484619 U CN211484619 U CN 211484619U
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Abstract
The embodiment of the utility model discloses X ray imaging system, this accuse system includes: a bulb for outputting X-rays; a detector for receiving the X-rays and generating scan data from the received X-rays; a triggering device for outputting at least a stop perspective request signal; the control mechanism is used for detecting the states of the bulb tube and the detector according to the perspective stopping request signal and enabling the bulb tube and the detector to enter a non-working state when the bulb tube is detected to be in a non-outgoing state and the detector is detected to be in a non-receiving state; a processor for generating a fluoroscopic image from scan data generated by the X-rays received by the detector. The problem that the brightness of a last frame of perspective image cannot be guaranteed in an X-ray imaging system in the prior art is solved.
Description
Technical Field
The embodiment of the utility model provides a relate to the medical equipment field, especially relate to an X ray imaging system.
Background
Cone-beam ct (cbct), an imaging component for positioning a patient's treatment position in a linear accelerator, has been widely used in image-guided radiation therapy (IGRT) and Adaptive Radiotherapy (ART).
In the practical application of IGRT, there is a need for perspective image capture. This time is random because the perspective request start and the perspective request end are manually input signals. And the signal is directly acted on the bulb tube to enable the bulb tube to stop beam outgoing, so that the phenomenon that the acquisition time of the last frame perspective image is insufficient can occur, the last frame perspective image is required to be displayed on a display, and the brightness of the last frame perspective image is obviously lower than that of the previous perspective image which is normally acquired.
In summary, the prior art X-ray imaging system has a problem that the brightness of the end frame fluoroscopic image cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides an X-ray imaging system, include:
a bulb for outputting X-rays;
a detector for receiving the X-rays and generating scan data from the received X-rays;
a triggering device for outputting at least a stop perspective request signal;
the control mechanism is used for detecting the states of the bulb tube and the detector according to the perspective stopping request signal and enabling the bulb tube and the detector to enter a non-working state when the bulb tube is detected to be in a non-outgoing state and the detector is detected to be in a non-receiving state;
a processor for generating a fluoroscopic image from scan data generated by the X-rays received by the detector.
Furthermore, the working mode of the bulb tube and the detector is discontinuous; and when detecting that the bulb tube is currently in a non-outgoing state and the detector is currently in a non-receiving state according to the fluoroscopy stop request signal, the control mechanism directly enables the bulb tube and the detector to enter a non-working state.
Furthermore, the working mode of the bulb tube and the detector is discontinuous; when the control mechanism detects that the bulb tube is currently in the wire outgoing state and the detector is in the receiving state according to the perspective stopping request signal, the control mechanism enables the bulb tube and the detector to be in the non-working state during the period that the bulb tube is in the next non-wire outgoing state and the detector is in the next non-receiving state.
Furthermore, the working mode of the bulb tube and the detector is discontinuous; when the control mechanism detects that the bulb tube is in a wire outgoing state currently and the detector is in a receiving state according to the fluoroscopy stopping request signal, the control mechanism enables the bulb tube and the detector to be in a non-working state after the bulb tube enters a non-wire outgoing state from the current wire outgoing state and the detector receives the X-rays output by the bulb tube.
Further, the trigger device is used for outputting a perspective request signal, and the control mechanism comprises a time sequence control board;
and the time sequence control board is used for triggering the bulb tube and the detector to enter a working state according to the perspective request.
Further, the time sequence control board is used for outputting a high-voltage time sequence signal for controlling the state of the bulb tube, a detector time sequence signal for controlling the detector, and a perspective control signal for controlling the high-voltage time sequence signal and the detector time sequence signal, and controlling the states of the high-voltage time sequence signal and the detector time sequence signal through the perspective control signal to enable the bulb tube and the detector to be in a working state or a non-working state.
Further, the trigger device is arranged on the time sequence control board.
Further, the display device is further included and used for displaying the perspective image.
The embodiment of the utility model provides a technical scheme of X ray imaging system, through bulb tube output X ray; receiving X-rays through a detector, and generating scanning data according to the received X-rays; outputting at least a stop perspective request signal by a triggering device; detecting the states of the bulb tube and the detector through a control mechanism according to the perspective stopping request, and enabling the bulb tube and the detector to enter a non-working state when detecting that the bulb tube is in a non-outgoing state and the detector is in a non-receiving state; a fluoroscopic image is generated by a processor from scan data generated from the X-rays received by the detector. The bulb tube and the detector are enabled to enter the non-working state when the bulb tube is in the non-outgoing state and the detector is in the non-receiving state, so that the bulb tube can be ensured to output enough rays for the last frame image, the detector can acquire enough scanning data for the last frame image, and the processor can output a perspective image with normal brightness, so that the radiation quantity received by a patient corresponds to a high-quality perspective image, the patient is prevented from receiving meaningless ray radiation, and the method has high clinical popularization value.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an X-ray imaging system provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another X-ray imaging system provided by the embodiment of the present invention;
fig. 3 is a timing diagram generated by the timing control board according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of another X-ray imaging system provided by an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described clearly and completely through embodiments with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
Fig. 1 is an embodiment of the present invention provides an X-ray imaging system, including: the detector 12, the trigger device 131, the control mechanism 13 and the processor 14, wherein the bulb 11 is used for outputting X-rays; the detector 12 is used for receiving the X-ray and generating scanning data according to the received X-ray; the triggering device 131 is configured to output at least a request to stop perspective; the control mechanism 13 is used for detecting the states of the bulb and the detector according to the request of stopping perspective and enabling the bulb 11 and the detector 12 to enter a non-working state when detecting that the bulb 11 is in a non-outgoing state and the detector 12 is in a non-receiving state; the processor 14 is used to generate a fluoroscopic image from the scan data generated by the X-rays received by the detector.
In the present embodiment, the CBCT integrated on the linear accelerator is taken as an example for explanation, and a control signal for ending the perspective image acquisition is temporarily determined by a technician according to actual needs.
The non-outgoing state is a state that the bulb tube is suspended to be outgoing. Because the high-voltage time sequence signal of the bulb tube is a discrete square wave signal, the working state of the bulb tube comprises the following steps: the outgoing line state when the ray is output and the non-outgoing line state when the ray is suspended to be output; the non-receiving state is a state that the detector stops receiving the ray, and the working state of the detector comprises the following working states because the detector time sequence signal of the detector is a discrete square wave signal: a receive state when a ray is received, and a non-receive state when the ray is suspended from being received. Therefore, the working states of the bulb and the detector are discontinuous.
Optionally, when the control mechanism detects that the bulb is currently in the non-outgoing state and the detector is in the non-receiving state according to the perspective stopping request signal, the control mechanism directly enables the bulb and the detector to enter the non-working state. Since the scan data of the last frame fluoroscopic image in this case is completed before the detector enters the current non-receiving state, the scan data of the last frame fluoroscopic image is complete, and the last frame fluoroscopic image reconstructed based on the complete scan data is also complete.
Since the bulb tube does not output rays in the non-outgoing state, and the detector does not receive rays in the non-receiving state, the control mechanism of the embodiment enables the bulb tube and the detector to be in the non-working state during the next non-outgoing state of the bulb tube and the corresponding non-receiving state of the detector when detecting that the bulb tube is currently in the outgoing state and the detector is in the receiving state according to the fluoroscopy stop request signal.
Optionally, when the control mechanism detects that the bulb is currently in the outgoing line state and the detector is in the receiving state according to the fluoroscopy stop request signal, the control mechanism enables the bulb and the detector to be in the non-working state when the bulb enters the non-outgoing line state from the current outgoing line state and the detector finishes receiving the rays output by the bulb. That is, when the current outgoing state of the bulb is finished and the receiving state of the detector is finished, the bulb and the detector are in a non-working state.
Preferably, the triggering device is further configured to output a perspective request signal; the control mechanism controls the bulb tube and the detector to enter a working state according to the perspective request signal.
Preferably, as shown in fig. 2 and 3, the control mechanism 13 includes a timing control board 132, and the triggering device 131 is connected through the timing control board 132. The timing control board 132 is used for outputting a high-voltage timing signal for controlling the state of the bulb tube 11, a detector timing signal for controlling the detector 12, and a perspective control signal for controlling the high-voltage timing signal and the detector timing signal, and controlling the states of the high-voltage timing signal and the detector timing signal through the perspective control signal to enable the bulb tube and the detector to be in a working state or a non-working state.
Illustratively, as shown in fig. 2, 3 and 4, the control mechanism 13 generates a high-level perspective control signal when receiving a perspective request signal from the triggering device 131 at time 1, and generates a high-voltage timing signal for controlling the bulb 11 by controlling the high-voltage generating mechanism 111 at time 2 and a probe timing signal for controlling the probe 12 at time 3 according to the perspective control signal. The high-voltage time sequence signal and the detector time sequence signal are both discrete square wave signals, the high-voltage time sequence signal jumps to be low level at the moment 4, and the detector time sequence signal jumps to be low level at the moment 5. It will be appreciated that when the high voltage timing signal is at a high level, such as for a period of time between time 2 and time 4, the bulb 11 is in an outgoing line state, and when the high voltage timing signal is at a low level, such as for a period of time between time 6 and time 7, the bulb 11 is in a non-outgoing line state; when the detector timing signal is at a high level, such as the period between times 3 and 5, detector 12 is in a receiving state, and when the detector timing signal is at a low level, detector 12 is in a non-receiving state.
When a user presses or touches the trigger device 131 at a time 8 when the bulb tube 11 and the detector 12 are in a working state, for example, the trigger device 131 outputs a perspective stop signal, the timing control board 132 detects the states of the high-voltage timing signal and the detector timing signal, and if both are in a low level, the perspective control signal is directly jumped to the low level, so that the bulb tube and the detector are in a non-working state; if the high level and the low level are both in the high level, the ending time of the high level time sequence signal and the current high level of the detector time sequence signal is determined, such as the time 9, then a control signal jumping time is determined, such as the time 10, the perspective control signal is jumped to be in the low level, the high level time sequence signal and the detector time sequence signal are stopped being output, and the bulb tube and the detector are enabled to enter the non-working state. Wherein the time 10 preferably lags behind the time 9.
Preferably, the triggering device 131 is preferably disposed on the timing control board 132 to facilitate data communication between the triggering device and the timing control board.
Preferably, the system further comprises a display device 15, the display device 15 being adapted to display the fluoroscopic image for facilitating a user to view the fluoroscopic image of the patient.
The embodiment of the utility model provides a technical scheme of X ray imaging system, through bulb tube output X ray; receiving X-rays through a detector, and generating scanning data according to the received X-rays; outputting at least a stop perspective request signal by a triggering device; detecting the states of the bulb tube and the detector through a control mechanism according to the perspective stopping request, and enabling the bulb tube and the detector to enter a non-working state when detecting that the bulb tube is in a non-outgoing state and the detector is in a non-receiving state; a fluoroscopic image is generated by a processor from scan data generated from the X-rays received by the detector. The bulb tube and the detector are enabled to enter the non-working state when the bulb tube is in the non-outgoing state and the detector is in the non-receiving state, so that the bulb tube can be ensured to output enough rays for the last frame image, the detector can acquire enough scanning data for the last frame image, and the processor can output a perspective image with normal brightness, so that the radiation quantity received by a patient corresponds to a high-quality perspective image, the patient is prevented from receiving meaningless ray radiation, and the method has high clinical popularization value.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (8)
1. An X-ray imaging system, comprising:
a bulb for outputting X-rays;
a detector for receiving the X-rays and generating scan data from the received X-rays;
a triggering device for outputting at least a stop perspective request signal;
the control mechanism is used for detecting the states of the bulb tube and the detector according to the perspective stopping request signal and enabling the bulb tube and the detector to enter a non-working state when the bulb tube is detected to be in a non-outgoing state and the detector is detected to be in a non-receiving state;
a processor for generating a fluoroscopic image from scan data generated by the X-rays received by the detector.
2. The X-ray imaging system of claim 1, wherein the bulb and detector are discontinuous in operation; and when detecting that the bulb tube is currently in a non-outgoing state and the detector is currently in a non-receiving state according to the fluoroscopy stop request signal, the control mechanism directly enables the bulb tube and the detector to enter a non-working state.
3. The X-ray imaging system of claim 1, wherein the bulb and detector are discontinuous in operation; when the control mechanism detects that the bulb tube is currently in the wire outgoing state and the detector is in the receiving state according to the perspective stopping request signal, the control mechanism enables the bulb tube and the detector to be in the non-working state during the period that the bulb tube is in the next non-wire outgoing state and the detector is in the next non-receiving state.
4. The X-ray imaging system of claim 1, wherein the bulb and detector are discontinuous in operation; when the control mechanism detects that the bulb tube is in a wire outgoing state currently and the detector is in a receiving state according to the fluoroscopy stopping request signal, the control mechanism enables the bulb tube and the detector to be in a non-working state after the bulb tube enters a non-wire outgoing state from the current wire outgoing state and the detector receives the X-rays output by the bulb tube.
5. The X-ray imaging system of any one of claims 1-4, wherein the triggering device is configured to output a fluoroscopy request signal, and the control mechanism comprises a timing control board;
and the time sequence control board is used for triggering the bulb tube and the detector to enter a working state according to the perspective request.
6. The X-ray imaging system of claim 5,
the time sequence control board is used for outputting a high-voltage time sequence signal for controlling the state of the bulb tube, a detector time sequence signal for controlling the detector and a perspective control signal for controlling the high-voltage time sequence signal and the detector time sequence signal, and controlling the states of the high-voltage time sequence signal and the detector time sequence signal through the perspective control signal to enable the bulb tube and the detector to be in a working state or a non-working state.
7. The X-ray imaging system of claim 5, wherein the triggering device is disposed on the timing control board.
8. The X-ray imaging system of claim 1, further comprising a display device for displaying the fluoroscopic image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921362195.9U CN211484619U (en) | 2019-08-21 | 2019-08-21 | X-ray imaging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921362195.9U CN211484619U (en) | 2019-08-21 | 2019-08-21 | X-ray imaging system |
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| Publication Number | Publication Date |
|---|---|
| CN211484619U true CN211484619U (en) | 2020-09-15 |
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| CN201921362195.9U Active CN211484619U (en) | 2019-08-21 | 2019-08-21 | X-ray imaging system |
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| CN (1) | CN211484619U (en) |
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