CN118142101A - Sliding rail CT guiding accelerator treatment system and treatment method thereof - Google Patents
Sliding rail CT guiding accelerator treatment system and treatment method thereof Download PDFInfo
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- CN118142101A CN118142101A CN202410356709.9A CN202410356709A CN118142101A CN 118142101 A CN118142101 A CN 118142101A CN 202410356709 A CN202410356709 A CN 202410356709A CN 118142101 A CN118142101 A CN 118142101A
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- 230000033001 locomotion Effects 0.000 claims abstract description 16
- 238000001959 radiotherapy Methods 0.000 claims abstract description 5
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- 238000002591 computed tomography Methods 0.000 claims description 6
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Abstract
The invention discloses a sliding rail CT guiding accelerator treatment system and a treatment method thereof, which belong to the field of medical equipment, and realize the processes of one-time positioning, resetting and treatment of a patient by sharing a treatment bed with a CT and an accelerator, thereby reducing the influence caused by multiple positioning and eliminating errors caused by different bed differences; the intelligent positioning auxiliary system can monitor the position of a patient in real time through the position information of the patient, ensure the position accuracy in the treatment process and improve the position accuracy in the treatment process. The CT is arranged on the moving mechanism, and the central axis of motion of the CT, the rotation center of the treatment bed and the center of the accelerator are collinear; the intelligent positioning auxiliary system comprises a positioning auxiliary device arranged at one side of the treatment bed and a sensing device arranged at the bottom of the bed plate of the treatment bed. The invention is mainly used for radiotherapy.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a sliding rail CT guide accelerator treatment system and a treatment method thereof.
Background
At present, a patient needs to scan before treatment on a large-aperture CT and then go to an accelerator for treatment after scanning before radiotherapy, and because two positioning is needed, the two positioning on the large-aperture CT scanning bed and the accelerator treatment bed are difficult to ensure. Meanwhile, the large-aperture CT scanning bed and the accelerator treatment bed are different, the sinking amount of a patient is different when the two beds are positioned, the positions of the patient during scanning and accelerator treatment on the large-aperture CT are deviated based on the reasons, so that the deviation exists during treatment, the final treatment effect is affected, and meanwhile, the patient needs to be positioned in a CT examination room and an accelerator treatment room respectively, the flow is complex, the burden of the patient is increased, and the treatment efficiency is affected.
Disclosure of Invention
The invention aims to provide a sliding rail CT guiding accelerator treatment system and a treatment method thereof, which realize the processes of one-time positioning, resetting and treatment of a patient by sharing a treatment bed with an accelerator through CT, reduce the influence caused by multiple positioning and eliminate the error caused by different bed differences; the intelligent positioning auxiliary system can monitor the position of a patient in real time through the position information of the patient, ensure the position accuracy in the treatment process and improve the position accuracy in the treatment process.
The invention is realized by the following technical scheme:
A sliding rail CT guiding accelerator treatment system comprises a CT and an accelerator, wherein a treatment bed is arranged between the CT and the accelerator, the treatment bed is a central rotating treatment bed, the CT is arranged on a moving mechanism, the central axis of motion of the CT, the rotation center of the treatment bed and the center of the accelerator are collinear, so that the patient center is kept unchanged before and after the treatment bed rotates, and the treatment precision is ensured; the intelligent positioning auxiliary system comprises a plurality of positioning auxiliary devices arranged on one side of the treatment bed and a plurality of sensing devices arranged on the bottom of the bed plate of the treatment bed.
Further, the moving mechanism comprises a base which is symmetrically arranged, the base is fixed on the ground, sliding rails are arranged on the base, racks are arranged on the bases on the side edges of the sliding rails, sliding seats are arranged on the sliding rails on two sides, mounting seats are arranged on the sliding seats on two sides, the two mounting seats are connected through a transmission shaft, a bearing is arranged between the transmission shaft and the mounting seats, gears are arranged on two sides of the transmission shaft and meshed with the racks, a driving motor is fixedly arranged on the sliding seat on one side, an output shaft of the driving motor is connected with the transmission shaft through a coupling, and CT is arranged on the mounting seats.
Further, a magnetic grating ruler is fixedly installed on the base at one side, a measuring head matched with the magnetic grating ruler is installed at the bottom of the sliding seat, and the magnetic grating ruler is matched with the measuring head to collect positions in real time, so that a driving motor is regulated and controlled.
Further, limit switches are arranged at two ends of the base, and limiting blocks matched with the limit switches are arranged on the sliding seat and used for moving limiting.
Further, the two gears and the rack are arranged in a staggered manner, so that gaps between the gears and the rack are eliminated when the movement direction is converted, and the movement precision is ensured.
Further, the positioning auxiliary device is a high-resolution camera, the high-resolution camera is located at the side and the upper side of the treatment couch, the body position information of the patient is collected through the high-resolution camera, the body position and the movement condition of the patient are captured in real time, the change of the body position in the treatment process of the patient is monitored, and the positioning accuracy of the treatment couch after the two working positions are switched is verified.
Further, the sensing device is a pressure sensor and is used for collecting historical patient positioning data, including patient weight, bed board sinking and the like, and the sensing device is used for training a machine learning model by combining body position information collected by the high-resolution camera, predicting and adjusting the optimal position of a patient treatment bed, and improving comfort and safety of the patient.
A treatment method of a sliding rail CT guide accelerator, which uses the sliding rail CT guide accelerator treatment system, comprises the following steps:
1) Acquiring a CT image, and acquiring tumor image information of a patient through CT scanning;
2) Making/adjusting a radiotherapy plan, and determining a target area, a tumor center and the like according to the acquired CT image;
3) Rotating the treatment bed to the accelerator side, positioning the treatment bed firmly through a pin shaft, enabling a patient to lie on the treatment bed, and finishing patient positioning and positioning through an accelerator laser lamp and an intelligent positioning auxiliary system;
4) Rotating the treatment bed to the CT side, positioning the treatment bed firmly through a pin shaft, and verifying whether the patient is switched to the CT working position according to the expected after the conversion of the bed by the intelligent positioning auxiliary system, if the deviation exists, adjusting the position of the bed according to the difference value output by the intelligent positioning auxiliary system, and if the deviation does not exist, driving a sliding rail CT to scan the patient by a driving motor to obtain the image information of the patient;
5) Calculating the deviation of the tumor center according to the acquired CT image information;
6) Rotating the treatment bed to the accelerator side, positioning the treatment bed firmly through a pin shaft, and moving the scanning bed according to the deviation obtained in the step 5);
7) The accelerator beam is emitted and the treatment is completed according to the parameters of the treatment plan.
Compared with the prior art, the invention has the beneficial effects that:
1. the CT and the accelerator share one treatment bed, so that the one-time positioning, resetting and treatment processes of the patient are realized, the influence caused by multiple positioning is reduced, and the error caused by different bed differences is eliminated.
2. The intelligent positioning auxiliary system based on the camera and the pressure sensor can monitor the position of the patient in real time through the position information of the patient, ensure the position accuracy in the treatment process, improve the position accuracy in the treatment process, provide the optimal position for the patient and put, and ensure the accuracy and effect of medical treatment.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic structural view of the moving mechanism of the present invention.
In the figure: 1. CT; 2. a moving mechanism; 3. a treatment couch; 4. an accelerator; 5. a positioning auxiliary device; 6. an induction device; 7. a base; 8. a slide rail; 9. a rack; 10. a driving motor; 11. a mounting base; 12. a measuring head; 13. a limit switch; 14. a gear; 15. a transmission shaft 16 and a magnetic grating ruler.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, embodiment 1, a sliding rail CT guiding accelerator treatment system, which includes a CT1 and an accelerator 4, a treatment couch 3 is further disposed between the CT1 and the accelerator 4, the treatment couch 3 is a central rotation type treatment couch, the CT1 is mounted on the moving mechanism 2, and the central axis of motion of the CT1, the rotation center of the treatment couch 3 and the center of the accelerator 4 are collinear, so as to keep the center of the patient unchanged before and after the rotation of the treatment couch 3, and ensure the treatment precision; the intelligent positioning auxiliary system comprises a plurality of positioning auxiliary devices 5 arranged on one side of the treatment bed 3 and a plurality of sensing devices 6 arranged on the bottom of the bed plate of the treatment bed 3.
As shown in fig. 2, in the embodiment 2, a sliding rail CT guiding accelerator treatment system, the moving mechanism 2 includes symmetrically arranged bases 7, the bases 7 are fixed on the ground, sliding rails 8 are respectively provided on the bases 7 on the sides of the sliding rails 8, racks 9 are respectively provided on the bases 7 on the sides of the sliding rails 8, sliding carriages are respectively provided on the sliding rails 8 on the two sides, mounting seats 11 are respectively provided on the sliding carriages on the two sides, the two mounting seats 11 are connected by a transmission shaft 15, a bearing is provided between the transmission shaft 15 and the mounting seats 11, gears 14 are respectively provided on the two sides of the transmission shaft 15, the gears 14 are meshed with the racks 9, a driving motor 10 is fixedly mounted on one sliding carriage, an output shaft of the driving motor 10 is connected with the transmission shaft 15 by a coupling, and the CT1 is mounted on the mounting seat 11; a magnetic grating ruler 16 is fixedly arranged on the base 7 at one side, a measuring head 12 matched with the magnetic grating ruler 16 is arranged at the bottom of the sliding seat, and the magnetic grating ruler 16 and the measuring head 12 are matched for real-time position acquisition to regulate and control the driving motor 10; limit switches 13 are arranged at two ends of the base 7, and limiting blocks matched with the limit switches 13 are arranged on the sliding seat and used for limiting movement at two ends; the two gears 14 and the rack 9 are arranged in a staggered manner, so that gaps between the gears 14 and the rack 9 are eliminated when the movement direction is converted, and the movement precision is ensured; the positioning auxiliary device 5 is a high-resolution camera, the high-resolution camera is positioned at the side and above the treatment couch 3, the body position information of the patient is collected through the high-resolution camera, the body position and the movement condition of the patient are captured in real time, the change of the body position in the treatment process of the patient is monitored, and the positioning accuracy of the treatment couch 3 after the two working positions are switched is verified; the sensing device 6 is a pressure sensor, and is used for collecting patient historical positioning data, including patient weight, bed board sinking, and the like, training a machine learning model (the prior art) by combining body position information collected by a high-resolution camera, predicting and adjusting the optimal position of a patient treatment table, improving patient comfort and safety, and otherwise being the same as that of the embodiment 1.
Embodiment 3, a method for treating a sled CT guided accelerator, using the sled CT guided accelerator treatment system of embodiment 1 or 2, comprising the steps of:
1) Acquiring CT images (first examination or in-treatment examination, such as self-adaption), and acquiring tumor image information of a patient through CT scanning;
2) Making/adjusting a radiotherapy plan, and determining a target area, a tumor center and the like according to the acquired CT image;
3) Rotating the treatment bed 3 to the accelerator side, positioning the treatment bed 3 firmly through a pin shaft, enabling a patient to lie on the treatment bed 3, and completing patient positioning and positioning through an accelerator laser lamp and an intelligent positioning auxiliary system;
4) Rotating the treatment couch 3 to the CT side, positioning the treatment couch 3 firmly through a pin shaft, and verifying whether a patient is switched to a CT working position according to the expected after the couch is converted by the intelligent positioning auxiliary system, if the deviation exists, adjusting the couch position according to the difference value output by the intelligent positioning auxiliary system, and if the deviation does not exist, driving the sliding rail CT1 to scan the patient by the driving motor 10 to obtain patient image information;
5) Calculating the deviation of the tumor center according to the acquired CT image information;
6) Rotating the treatment bed 3 to the accelerator side, positioning the treatment bed 3 firmly through a pin, and moving the scanning bed according to the deviation obtained in the step 5;
7) The accelerator beam is emitted and the treatment is completed according to the parameters of the treatment plan.
The CT1 is arranged on the moving mechanism 2, forward and backward movement can be realized, the treatment couch 3 is positioned between the accelerator 4 and the CT1, the treatment couch 3 can rotate around the center, the two working positions of the accelerator treatment position and the CT scanning position are different by 180 degrees, the moving central axis of the movable CT1 can pass through the rotation center of the treatment couch and the center of the accelerator, so that the center of a patient is kept unchanged before and after the treatment couch 3 rotates, the treatment precision is ensured, the high-resolution camera 5 of the intelligent positioning auxiliary system is arranged at the side or the upper part of the couch for detecting the body position information of the patient, and the pressure sensor 6 is arranged below the couch board for detecting the weight of the patient or the sinking amount of the couch board.
Claims (8)
1. A slide rail CT guided accelerator treatment system, characterized by: the device comprises a CT (1) and an accelerator (4), wherein a treatment bed (3) is arranged between the CT (1) and the accelerator (4), the treatment bed (3) is a central rotary treatment bed, the CT (1) is arranged on a moving mechanism (2), the central axis of motion of the CT (1), the rotation center of the treatment bed (3) and the center of the accelerator (4) are collinear, so that the patient center is kept unchanged before and after the treatment bed (3) rotates, and the treatment precision is ensured; the intelligent positioning auxiliary system comprises a plurality of positioning auxiliary devices (5) arranged on one side of the treatment bed (3) and a plurality of sensing devices (6) arranged at the bottom of the bed board of the treatment bed (3).
2. The sled CT guided accelerator treatment system of claim 1, wherein: the utility model provides a mobile mechanism (2) including base (7) that the symmetry set up, all be equipped with slide rail (8) on base (7), all be equipped with rack (9) on base (7) of slide rail (8) side, all slide on both sides slide rail (8) and be equipped with mount pad (11), connect through transmission shaft (15) between two mount pads (11), be equipped with the bearing between transmission shaft (15) and mount pad (11), transmission shaft (15) both sides are equipped with gear (14), gear (14) and rack (9) meshing, fixed mounting has driving motor (10) on one side slide, the output shaft of driving motor (10) is connected with transmission shaft (15) through the shaft coupling, CT (1) are installed on mount pad (11).
3. The sled CT guided accelerator treatment system of claim 2, wherein: the base (7) on one side is also fixedly provided with a magnetic grating ruler (16), the bottom of the sliding seat is provided with a measuring head (12) matched with the magnetic grating ruler (16), and the magnetic grating ruler (16) and the measuring head (12) are matched to collect positions in real time to regulate and control the driving motor (10).
4. The sled CT guided accelerator treatment system of claim 2, wherein: the two ends of the base (7) are provided with limit switches (13), and the slide seat is provided with limiting blocks matched with the limit switches (13) for limiting the movement of the two ends.
5. The sled CT guided accelerator treatment system of claim 2, wherein: the two gears (14) are arranged in a staggered manner with the rack (9), so that gaps between the gears (14) and the rack (9) are eliminated when the movement direction is converted, and the movement precision is ensured.
6. The sled CT guided accelerator treatment system of claim 1, wherein: the positioning auxiliary device (5) is a high-resolution camera, the high-resolution camera is located on the side and the upper side of the treatment bed (3), patient position information is collected through the high-resolution camera, the position and movement condition of a patient are captured in real time, the change of the position of the patient in the treatment process is monitored, and the positioning accuracy of the treatment bed (3) after two working positions are switched is verified.
7. The sled CT guided accelerator treatment system of claim 1, wherein: the sensing device (6) is a pressure sensor and is used for collecting historical positioning data of a patient, including the weight of the patient and the sinking of the bed board.
8. A treatment method of a slide rail CT guide accelerator is characterized by comprising the following steps of: use of a slide rail CT guidance accelerator treatment system according to any of claims 1-7, comprising the steps of:
1) Acquiring a CT image, and acquiring tumor image information of a patient through CT scanning;
2) Making/adjusting a radiotherapy plan, and determining a target area and a tumor center according to the acquired CT image;
3) Rotating the treatment bed (3) to the accelerator side, positioning the treatment bed (3) firmly through a pin shaft, and enabling a patient to lie on the treatment bed (3), wherein positioning and positioning of the patient are completed through an accelerator laser lamp and an intelligent positioning auxiliary system;
4) Rotating the treatment bed (3) to the CT side, positioning the treatment bed (3) firmly through a pin shaft, and verifying whether a patient is switched to a CT working position according to the expected after the conversion of the bed by an intelligent positioning auxiliary system, if the deviation exists, adjusting the position of the bed according to the difference value output by the intelligent positioning auxiliary system, and if the deviation does not exist, driving a sliding rail CT (1) to scan the patient by a driving motor (10) to obtain patient image information;
5) Calculating the deviation of the tumor center according to the acquired CT image information;
6) Rotating the treatment bed (3) to the accelerator side, positioning the treatment bed (3) firmly through a pin, and moving the scanning bed according to the deviation obtained in the step 5);
7) The accelerator beam is emitted and the treatment is completed according to the parameters of the treatment plan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410356709.9A CN118142101A (en) | 2024-03-27 | 2024-03-27 | Sliding rail CT guiding accelerator treatment system and treatment method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410356709.9A CN118142101A (en) | 2024-03-27 | 2024-03-27 | Sliding rail CT guiding accelerator treatment system and treatment method thereof |
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| CN118142101A true CN118142101A (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410356709.9A Pending CN118142101A (en) | 2024-03-27 | 2024-03-27 | Sliding rail CT guiding accelerator treatment system and treatment method thereof |
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| CN (1) | CN118142101A (en) |
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