WO2014183642A1 - 放射治疗设备 - Google Patents

放射治疗设备 Download PDF

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Publication number
WO2014183642A1
WO2014183642A1 PCT/CN2014/077446 CN2014077446W WO2014183642A1 WO 2014183642 A1 WO2014183642 A1 WO 2014183642A1 CN 2014077446 W CN2014077446 W CN 2014077446W WO 2014183642 A1 WO2014183642 A1 WO 2014183642A1
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WO
WIPO (PCT)
Prior art keywords
radiotherapy
bed
monitoring
monitoring unit
pet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2014/077446
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English (en)
French (fr)
Inventor
刘剑
李敦�
倪成
李博
齐伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai United Imaging Healthcare Co Ltd
Original Assignee
Shanghai United Imaging Healthcare Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai United Imaging Healthcare Co Ltd filed Critical Shanghai United Imaging Healthcare Co Ltd
Publication of WO2014183642A1 publication Critical patent/WO2014183642A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1048—Monitoring, verifying, controlling systems and methods
    • A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/037—Emission tomography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4417—Constructional features of apparatus for radiation diagnosis related to combined acquisition of different diagnostic modalities
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1048—Monitoring, verifying, controlling systems and methods
    • A61N5/1064—Monitoring, verifying, controlling systems and methods for adjusting radiation treatment in response to monitoring
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/4808—Multimodal MR, e.g. MR combined with positron emission tomography [PET], MR combined with ultrasound or MR combined with computed tomography [CT]
    • G01R33/481—MR combined with positron emission tomography [PET] or single photon emission computed tomography [SPECT]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0033—Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of imaging apparatus in a room
    • A61B5/0037—Performing a preliminary scan, e.g. a prescan for identifying a region of interest
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like
    • A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body

Definitions

  • Radiotherapy equipment refers to a device that uses high-energy electromagnetic radiation (X-radiation, gamma radiation) or particle radiation (electrons, protons, carbon ions) to destroy a diseased tissue, and is widely used in medical treatment in cancer.
  • High radiation doses are produced in a targeted manner in the radiation center of a radiation therapy device, but the problem of radiation targets changing in the body often occurs during the radiation process. If the tumor has grown or has shrunk during the time between planned and actual radiation. Moreover, the center of the lesion area changes according to the progress of the radiation during the treatment.
  • An imaging medium for monitoring treatment proposes an X-ray apparatus and an ultrasonic apparatus. But these devices only provide a limited solution to this problem. Ultrasound imaging lacks penetration depth for many applications. In X-ray imaging, the X-ray sensor may be destroyed or damaged by the gamma rays of the accelerator. In addition, the quality of the organization's shooting often fails to achieve satisfactory results. Therefore, it is currently mainly used to assist the locator and fixture or the label attached to the patient's skin to ensure that the patient is in the same position as the previous radiation plan in the radiation device. The radiation center of the radiation device is thus actually coincident with the radiation target. However, these auxiliary positioners and fixtures are relatively expensive and give the patient an uncomfortable feeling.
  • the invention provides a radiation therapy device with an imaging device capable of monitoring and treating, and accurately monitoring a patient (lesion) in real time through an imaging device, thereby effectively improving the precision of the radiation therapy.
  • the radiotherapy apparatus of the present invention includes: a radiation therapy unit; a hospital bed for supporting and moving the patient; and an imaging device disposed in a horizontal movement direction of the bed of the hospital bed, the imaging device for positioning a patient's patient part, wherein
  • the imaging device includes an imaging channel through which the bed is passed, the bed moving the bed between the radiation treatment portion and the imaging device in a horizontal movement direction of the bed according to the needs of radiation therapy or imaging.
  • the imaging device may include any one of a PET monitoring unit, a CT monitoring unit, and an MR monitoring unit, or the imaging device includes a PET monitoring unit and a CT monitoring unit, or the imaging device The PET monitoring unit and the MR monitoring unit are included, or the imaging device includes a CT monitoring unit and an MR monitoring unit.
  • the radiation therapy apparatus further includes a bracket for supporting the hospital bed.
  • the bracket includes a lifting rod that supports the bed board, and a bottom frame that lifts and lowers the lifting rod.
  • the lifting rod is a "T"-shaped lifting rod having an upper width and a lower width.
  • the upper surface of the lifting rod contacting the hospital bed is provided with a sliding wheel.
  • the hospital bed is located on a front surface of the radiation therapy unit, and any one of the PET monitoring unit, the CT monitoring unit, and the MR monitoring unit is located on a rear surface of the radiation therapy unit.
  • one of the PET monitoring unit, the CT monitoring unit, and the MR monitoring unit is located at a front surface of the radiation therapy unit, and the bed is located at the radiation therapy unit and the PET monitoring unit, the CT monitoring unit, and the MR Between one of the monitoring departments.
  • one of the PET monitoring unit, the CT monitoring unit, and the MR monitoring unit is located on a front surface of the radiation therapy unit, and the bed is located on a back surface of the radiation therapy unit.
  • the hospital bed is located on a rear surface of the radiation therapy unit, and one of the PET monitoring unit, the CT monitoring unit, and the MR monitoring unit is located between the radiation therapy unit and the hospital bed.
  • the hospital bed is located on a front surface of the radiation therapy unit, and one of the PET monitoring unit, the CT monitoring unit, and the MR monitoring unit is located between the radiation therapy unit and the hospital bed.
  • the hospital bed is located on the front side of the radiation therapy unit, and the PET monitoring unit and the MR monitoring unit are located on the back side of the radiation therapy unit.
  • the radiation therapy unit and the hospital bed are located between the PET monitoring unit and the MR monitoring unit.
  • the PET monitoring unit and the MR monitoring unit are located on the front side of the radiation therapy unit, and the bed is located on the back side of the radiation therapy unit.
  • the hospital bed is located on the front side of the radiation therapy unit, and the PET monitoring unit and the MR monitoring unit are located between the radiation therapy unit and the hospital bed.
  • the PET monitoring unit and the MR monitoring unit are integrally formed.
  • the hospital bed is located on a front surface of the radiation therapy unit, and the PET monitoring unit and the CT monitoring unit are located on a back surface of the radiation therapy unit.
  • the radiation therapy unit and the hospital bed are located between the PET monitoring unit and the CT monitoring unit.
  • the PET monitoring unit and the CT monitoring unit are located on the front side of the radiation therapy unit, and the bed is located on the back side of the radiation therapy unit.
  • the hospital bed is located on the front side of the radiation therapy unit, and the PET monitoring unit and the CT monitoring unit are located between the radiation therapy unit and the hospital bed.
  • the PET monitoring unit and the CT monitoring unit are integrally formed.
  • the radiation treatment portion includes a bed plate passage through which the bed plate passes, and the bed moves the bed plate between the bed plate passage and the imaging passage in a horizontal movement direction of the bed plate according to the need of radiation therapy or imaging.
  • the imaging device includes a driving device that is independent of the radiation therapy portion.
  • the bottom surface of the hospital bed includes a rotating chassis that drives the rotation of the hospital bed.
  • the bottom surface of the radiation treatment unit includes a rotating chassis that drives the radiation treatment unit to rotate.
  • the CT monitoring unit includes a CT monitor and a CT bracket, and the CT monitor is tiltably disposed on the CT bracket.
  • the radiological medical device provided by the embodiment of the invention combines different imaging devices to achieve accurate synchronous image localization of the patient's tumor treatment, and effectively improves the treatment accuracy and effectiveness. Rate.
  • Embodiments of the present invention also provide a method of combining different imaging devices with a radiation therapy unit, for example, a method of combining PET imaging technology and CT scanning technology (or MR scanning technology) into a radiotherapy device, which can be selectively required. The ward of the treated patient is monitored to facilitate treatment.
  • FIG. 1 is a front view of a first embodiment of a radiotherapy apparatus according to the present invention
  • FIG. 2 is a rear view of a first embodiment of a radiotherapy apparatus according to the present invention
  • FIG. 1 is a schematic side view of a first embodiment
  • FIG. 4 is a schematic view of a T-bracket of the radiotherapy apparatus of the present invention.
  • FIG. 5 is a side elevational view of a first embodiment of a radiotherapy apparatus of the present invention
  • Figure 6 is a side view of a first embodiment of a radiotherapy apparatus of the present invention
  • Figure 7 is a first embodiment of the radiotherapy apparatus of the present invention
  • FIG. 8 is a side view of a first embodiment of a radiotherapy apparatus according to the present invention
  • FIG. 9 is a schematic perspective view showing a CT monitoring portion of a radiotherapy apparatus according to a second embodiment of the present invention.
  • FIG. 10 is a front elevational view of a sixth embodiment of the radiotherapy apparatus of the present invention
  • Figure 11 is a rear view of a sixth embodiment of the radiotherapy apparatus of the present invention
  • Figure 12 is a fourth embodiment of the radiotherapy apparatus of the present invention
  • FIG. 13 is a side view of a fourth embodiment of a radiotherapy apparatus according to the present invention
  • FIG. 14 is a side view of a fourth embodiment of a radiotherapy apparatus according to the present invention
  • FIG. 16 is a side elevational view of an exemplary embodiment of a fourth embodiment of the radiotherapy apparatus of the present invention
  • Figure 17 is a schematic view of a conventional radiotherapy apparatus including a CT scanner.
  • Treatment Head 2 Rack 3: Processor 5: Patient
  • PET monitoring unit 241 MR monitoring unit (CT monitoring unit) BEST MODE FOR CARRYING OUT THE INVENTION
  • CT monitoring unit MR monitoring unit
  • PET imaging uses the isotope of the emitted positron as a marker, introduces it into a certain part of the brain to participate in the known biochemical metabolic process, and uses modern computed tomography to quantify the metabolic rate of the specific metabolic process in which the marker participates.
  • the form of imaging is expressed.
  • FDG is a compound with a similar structure to glucose. It will accumulate in malignant cells after intravenous injection, so PET can identify malignant tumors. Benign tumors and normal tissues can also distinguish recurrent tumors from peripheral necrosis and scar tissue.
  • FIG. 1 is a front view showing a first embodiment of a radiation therapy apparatus of the present invention
  • FIG. 2 is a first embodiment of the radiation therapy apparatus of the present invention
  • 1 is a schematic side view of a first embodiment of the radiotherapy apparatus of the present invention
  • FIG. 4 is a schematic view of a T-bracket 40 of the radiotherapy apparatus of the present invention.
  • the radiation therapy apparatus includes a radiation therapy section 10, a PET monitoring section 31, and a hospital bed.
  • the radiation treatment unit 10 includes an accelerator 12 for emitting radiation; a central radiation perpendicular to the accelerator 12, which is in a planar shape, and is used for determining a detector 13 for treating the contour shape of the radiation beam, and the detector 13 is foldable or accommodating as required.
  • the accelerator 12 and the detector 13 are located above and below the patient, respectively, and the radiation reaches the detector 13 through the patient.
  • the accelerator 12 and the detector 13 are rotated by the center line of the horizontal movement direction of the bed board 21 by the turntable 11.
  • the turntable 11 is provided with a cylindrical bed channel 15 extending through the turntable 11 for increasing the horizontal movement range of the bed.
  • the side where the accelerator 12 and the probe 13 are disposed with the radiation treatment unit 10 is the front side, and the bed is located on the front side of the radiation treatment unit 10.
  • the bed includes a bed board 21 for the patient to lie flat and a bed board drive 22 that is horizontally or tiltably movable under the drive of the bed board drive 22.
  • a disc-shaped rotating chassis 14 is provided on the bottom surface of the hospital bed, and the rotating chassis 14 rotates the bed centered on the vertical center line of the rotating chassis 14.
  • the PET monitoring unit 31 is located on the back surface of the radiation therapy unit 10, and forms an image on a portion of the human body that needs to be inspected.
  • the PET monitoring unit 31 is an independent device and is driven by an independent driving device without being affected by the radiation therapy unit 10.
  • the bed needs to pass through the bed passage 15 of the radiotherapy unit 10 to reach the imaging channel 32 of the PET monitoring portion 31, so that the length of the bed needs to be lengthened, in order to reduce the elastic change of the elongated bed plate 21
  • a bracket 40 for supporting the bed plate is further provided between the PET monitoring unit 31 and the radiation treatment unit 10.
  • the bracket 40 is also designed as a lifting bracket for the lifting of the bed board 21
  • the bracket 40 includes: a lifting rod 42 and a bottom frame 43 for lifting and lowering the lifting rod 42.
  • the lifting rod 42 may be a T-shaped structure with an upper width and a lower width, and the structure can increase the lifting rod.
  • the contact area with the bed board 21 and the increased force surface are advantageous for the stability of the apparatus.
  • the sliding wheel 41 can be added above the lifting rod 42 to reduce the frictional force with the upper surface of the lifting rod 42 when the bed board 21 moves.
  • Example 2 (Example 2 of the present invention will be described in detail below with reference to Fig. 5):
  • Fig. 5 is a side view showing an example 2 of the first embodiment of the radiation therapy apparatus of the present invention. The radiation therapy apparatus shown in Fig.
  • the radiation treatment unit 10 includes an accelerator 12 for emitting radiation; a central radiation perpendicular to the accelerator 12, which is in a planar shape, and is used for determining a detector 13 for treating the contour shape of the radiation beam, and the detector 13 is foldable or accommodating as required.
  • the accelerator 12 and the detector 13 are located above and below the patient, respectively, and the radiation reaches the detector 13 through the patient.
  • the accelerator 12 and the detector 13 are rotated by the turntable 11 with the center line of the horizontal movement direction of the bed plate 21 as an axis.
  • the turntable 11 is provided with a cylindrical bed passage 15 penetrating the turntable 11 for increasing the horizontal movement range of the bed.
  • the side where the accelerator 12 and the detector 13 are disposed with the radiation treatment unit 10 is the front side, PET
  • the monitoring unit 31 is located on the front side of the radiation therapy unit 10, and the bed is located between the radiation therapy unit 10 and the PET monitoring unit 31.
  • the bed includes a bed board 21 for the patient to lie flat and a bed board drive 22 that is horizontally or tiltably movable under the drive of the bed board drive 22.
  • a disk-shaped rotating chassis 14 which rotates the bed around the vertical centerline of the rotating chassis 14.
  • the PET monitoring section 31 forms an image of a portion of the human body that needs to be inspected.
  • the PET monitoring unit 31 is an independent device and is driven by an independent driving device without being affected by the radiation therapy unit 10.
  • the bed can be moved to the radiation range as long as it moves horizontally forward, and the horizontal movement can be performed backward.
  • the patient is sent to the imaging area of the PET monitoring section 31.
  • the bed board 21 does not need to pass through the radiation therapy section 10 during the examination, so the bed board 21 does not need to be too long, and space can be saved.
  • the radiation treatment unit 10 may also have no bed channel 15. This is because the bed passage is set to facilitate the passage of the bed 21 to the PET monitoring portion 31 (as shown in Example 1).
  • the PET monitoring portion 31 is located on the front side of the radiation treatment portion 10, and the bed is located in the radiation.
  • Fig. 6 is a side view showing an example 3 of the first embodiment of the radiation therapy apparatus of the present invention.
  • the radiation therapy apparatus shown in Fig. 6 includes a radiation therapy section 10, a PET monitoring section 31, and a hospital bed.
  • the radiation treatment unit 10 includes an accelerator 12 for emitting radiation; a central radiation perpendicular to the accelerator 12, which is in a planar shape, and is used for determining a detector 13 for treating the contour shape of the radiation beam, and the detector 13 is foldable or accommodating as required.
  • the accelerator 12 and the detector 13 are respectively located above the patient and Below, the radiation reaches the detector 13 through the patient.
  • the accelerator 12 and the detector 13 are rotated about the center line of the horizontal movement direction of the bed board 21 by the turntable 11.
  • the turntable 11 is provided with a cylindrical bed channel 15 extending through the turntable 11 for increasing the horizontal movement range of the bed.
  • the side where the accelerator 12 and the detector 13 are disposed with the radiation treatment unit 10 is the front side, and the bed is located at the back of the radiation treatment unit 10.
  • the bed includes a bed board 21 for the patient to lie flat and a bed board drive 22 which is horizontally or tiltably movable under the drive of the bed board drive 22.
  • a disc-shaped rotating chassis 14 is provided on the bottom surface of the hospital bed, and the rotating chassis 14 rotates the bed centered on the vertical center line of the rotating chassis 14.
  • the PET monitoring unit 31 is located between the hospital bed and the radiation therapy unit 10, and forms an image on a portion of the human body that needs to be inspected.
  • the PET monitoring unit 31 is an independent device and is driven by an independent driving device. Driven, not affected by the radiation treatment unit 10.
  • the bed needs to pass through the imaging channel 32 of the PET monitoring section 31 to reach the bed channel 15 of the radiation therapy section 10, so that the length of the bed needs to be lengthened, in order to reduce the elastic variation of the elongated bed plate 21
  • a bracket 40 for supporting the bed plate is further provided between the PET monitoring unit 31 and the radiation treatment unit 10.
  • FIG 4 is a schematic view of a T-bracket of the radiation therapy apparatus of the present invention.
  • the bracket 40 is also designed as a liftable bracket 40 for the lifting and lowering of the bed board 21, and the bracket 40 includes: a lifting rod 42 and a bottom frame 43 for lifting and lowering the lifting rod 42.
  • the lifting rod 42 may be The upper and lower narrow T-shaped structure can increase the contact area between the lifting rod 42 and the bed board 21, increase the force receiving surface, and is advantageous for the stability of the device.
  • the sliding wheel 41 can also be added above the lifting rod 42 to reduce The frictional force with the upper surface of the lifting rod 42 when the bed board 21 moves.
  • Example 4 As example of the first embodiment of the present invention will be described in detail below with reference to FIGS. 4 and 7.
  • Fig. 7 is a side view showing an example 4 of the first embodiment of the radiation therapy apparatus of the present invention.
  • the radiation therapy apparatus shown in Fig. 7 includes a radiation therapy section 10, a PET monitoring section 31, and a hospital bed.
  • the radiation treatment unit 10 includes an accelerator 12 for emitting radiation; a central radiation perpendicular to the accelerator 12, which is in a planar shape, and is used for determining a detector 13 for treating the contour shape of the radiation beam, and the detector 13 is foldable or accommodating as required.
  • the accelerator 12 and the detector 13 are located above and below the patient, respectively, and the radiation reaches the detector 13 through the patient.
  • the accelerator 12 and the detector 13 are rotated by the turntable 11 with the center line of the horizontal movement direction of the bed plate 21 as an axis.
  • the turntable 11 is provided with a cylindrical bed passage 15 penetrating the turntable 11 for increasing the horizontal movement range of the bed.
  • the side where the accelerator 12 and the detector 13 are disposed with the radiation treatment unit 10 is the front side, and the bed is located at the back of the radiation treatment unit 10.
  • the bed includes a bed board 21 for the patient to lie flat and a bed board drive 22 which is horizontally or tiltably movable under the drive of the bed board drive 22.
  • a disc-shaped rotating chassis 14 is provided on the bottom surface of the hospital bed, and the rotating chassis 14 rotates the bed centered on the vertical center line of the rotating chassis 14.
  • the PET monitoring unit 31 is located on the front side of the radiation therapy unit 10, and forms an image on a portion of the human body that needs to be inspected.
  • the PET monitoring unit 31 is an independent device and is driven by an independent driving device without being affected by the radiation therapy unit 10.
  • the bed needs to pass through the bed channel 15 of the radiotherapy section 10 to reach the imaging channel 32 of the PET monitoring section 31, so that the length of the bed needs to be lengthened, in order to reduce the elastic change of the elongated bed plate 21
  • a bracket 40 for supporting the bed plate is further provided between the PET monitoring unit 31 and the radiation treatment unit 10.
  • the bracket 40 is also designed as a liftable bracket 40 for the lifting and lowering of the bed board 21, for which the bracket 40 is
  • the utility model comprises: a lifting rod 42 and a bottom frame 43 for lifting and lowering the lifting rod 42.
  • the lifting rod 42 can be a T-shaped structure with an upper width and a lower width, and the structure can increase the contact area between the lifting rod 42 and the bed board 21, Increasing the force receiving surface is advantageous for the stability of the device.
  • the sliding wheel 41 can also be added above the lifting rod 42 to reduce the frictional force with the upper surface of the lifting rod 42 when the bed board 21 moves.
  • Fig. 8 is a side view showing an example 5 of the first embodiment of the radiation therapy apparatus of the present invention.
  • the radiation therapy apparatus shown in Fig. 8 includes a radiation therapy section 10, a PET monitoring section 31, and a hospital bed.
  • the radiation treatment unit 10 includes an accelerator 12 for emitting radiation; a central radiation perpendicular to the accelerator 12, which is in a planar shape, and is used for determining a detector 13 for treating the contour shape of the radiation beam, and the detector 13 is foldable or accommodating as required.
  • the accelerator 12 and the detector 13 are located above and below the patient, respectively, and the radiation reaches the detector 13 through the patient.
  • the accelerator 12 and the detector 13 are rotated by the turntable 11 with the center line of the horizontal movement direction of the bed plate 21 as an axis.
  • the turntable 11 is provided with a cylindrical bed passage 15 penetrating the turntable 11 for increasing the horizontal movement range of the bed.
  • the side where the accelerator 12 and the detector 13 are disposed with the radiation treatment unit 10 is the front side, and the bed is located on the front side of the radiation treatment unit 10, the bed including the bed board 21 for the patient lying down and the bed board drive 22, the bed board 21 being on the bed board
  • the drive 22 is driven to move horizontally or obliquely.
  • a disc-shaped rotating chassis 14 is provided on the bottom surface of the hospital bed, and the rotating chassis 14 rotates the bed centered on the vertical center line of the rotating chassis 14.
  • the PET monitoring unit 31 is located on the front surface of the radiation therapy unit 10, and forms an image on a portion of the human body that needs to be inspected.
  • the PET monitoring unit 31 is an independent device that is driven by a separate drive unit and is not affected by the radiation therapy unit 10.
  • the bed needs to pass through the imaging channel 32 of the PET monitoring section 31 to reach the bed channel 15 of the radiation therapy section 10, so that the length of the bed needs to be lengthened, in order to reduce the elastic change of the elongated bed plate 21
  • a bracket 40 for supporting the bed plate is further provided between the PET monitoring unit 31 and the radiation treatment unit 10.
  • FIG 4 is a schematic view of a T-bracket of the radiation therapy apparatus of the present invention.
  • the bracket 40 is also designed as a liftable bracket 40 for the lifting and lowering of the bed board 21, and the bracket 40 includes: a lifting rod 42 and a bottom frame 43 for lifting and lowering the lifting rod 42.
  • the lifting rod 42 may be The upper and lower narrow T-shaped structure can increase the contact area between the lifting rod 42 and the bed board 21, increase the force receiving surface, and is advantageous for the stability of the device.
  • the sliding wheel 41 can also be added above the lifting rod 42 to reduce The frictional force with the upper surface of the lifting rod 42 when the bed board 21 moves.
  • the radiation treatment section 10 may also have no bed passage 15. This is because the bed passage is set to facilitate the passage of the bed 21 to the PET monitoring portion 31 (as shown in Example 1), whereas in the example 5, as described above, the PET monitoring portion 31 is located on the front side of the radiation treatment portion 10, and the bed board 21 There is no need to pass through the radiation treatment unit 10, that is, the radiation treatment unit 10 may not have the bed channel 15.
  • the PET monitoring unit 31 is close to the hospital bed, and the moving line of the hospital bed is inspected and re-treated, and the treatment process of the treatment effect is also checked after the treatment, thereby improving the efficiency of the entire treatment. Moreover, the distance between the PET monitoring unit 31 and the accelerator 12 of the radiation therapy unit 10 is significantly shortened, which is advantageous for reducing the driving error during the movement of the bed, and the purpose of accurate treatment is achieved. PET imaging technology as a tumor-specific technology, its advantage in the detection of tumors is
  • the radiological medical device of the first embodiment of the present invention utilizes PET imaging technology to achieve accurate synchronous image localization of the patient's tumor treatment, and effectively improves the treatment accuracy and efficiency.
  • the imaging device is a CT monitoring unit
  • Computed Tomography which uses a precisely collimated X-ray beam to scan a section of the human body together with a highly sensitive detector, and reconstructs the tumor by CT scan.
  • CT Computed Tomography
  • the precise three-dimensional position A technical solution combining CT scanning technology and radiotherapy equipment is disclosed in Chinese Patent Publication No. CN101801272. As shown in FIG.
  • a linear accelerator having a CT scanner includes: a treatment head 1 that emits a megavolt radiation beam to a patient 5; and a plurality of X-ray sources located in the chassis 2 for use in a patient 5 transmitting a corresponding kilovolt radiation beam; a detector, located in the frame 2, for receiving a plurality of kilovolt radiation beams; and a processor 3, based on the plurality of kilovolt radiation received by the detector The beam is used to generate a three-dimensional image of the volume.
  • CT Computerputed Tomography
  • the second embodiment of the present invention also provides five different examples to specify the radiation therapy device in detail. . It should be understood that, unless otherwise stated, the structures, features, and advantages in the five different examples of the second embodiment of the present invention may refer to the five examples of the first embodiment and their corresponding FIGS. 1 to 8.
  • the PET monitoring unit 31 is replaced with the CT monitoring unit 31, and the PET chassis 30 is replaced with the CT chassis 30, and details are not described herein.
  • the CT monitoring unit 31 is an independent device and is driven by an independent driving device without being affected by the radiation therapy unit 10.
  • the CT monitoring unit 31 shown in Fig. 9 performs front-to-back (AB) tilting on the CT gantry 30.
  • AB front-to-back
  • CT can generate an accurate stereoscopic image of the lesion area, which is extremely advantageous for the treatment.
  • the combination of the CT and the CT monitoring unit can realize tumor treatment and accurate synchronous image localization of the patient at any position, which is advantageous for improving the treatment accuracy and efficiency.
  • the precise three-dimensional position of the tumor can be reconstructed during the CT scan, which greatly improves the tumor treatment accuracy of the radiation, can more accurately avoid the irradiation of important tissues near the tumor, and greatly improve the positioning speed of the tumor, and complete the CT scan.
  • Tumor radiation therapy can be performed in a short period of time, without changing the patient's position during the period, so the speed and accuracy from positioning to treatment can be greatly accelerated, and the treatment process is accelerated.
  • the imaging device is an MR monitoring unit Magnetic Resonance System (MR) is a type of radio frequency signal from the precessed nuclear magnetic moment for a patient or other object in the imaging space. Imaging medical diagnostic device.
  • MR Magnetic Resonance System
  • MR has no ionizing radiation damage to the human body, and MR can obtain native three-dimensional cross-sectional imaging without rebuilding to obtain multi-directional images.
  • the soft tissue structure of the cross-sectional image of the diagnostic object obtained by MR is clear, and the multi-sequence imaging obtained by MR and various image types provide more abundant image information for clearing the nature of the lesion.
  • CN101347656 a kind of patent is disclosed.
  • a combined radiation therapy and magnetic resonance apparatus solution wherein it is specifically disclosed that the radiation treatment portion is disposed in the lumen of the magnetic resonance diagnosis portion, and high-quality image monitoring is performed during the radiation treatment by the magnetic resonance diagnostic apparatus.
  • the third embodiment of the present invention provides a Radiotherapy equipment, by magnetic resonance (MR: Magnetic resonance) State control portion lesion area (e.g. tumor) to be monitored, And the strong magnetic field of MR does not affect the X-ray trajectory in radiation therapy, effectively improving the accuracy of radiation therapy.
  • MR Magnetic resonance
  • the third embodiment of the present invention also provides five different examples to explain the radiation in detail. Treatment equipment.
  • the radiological medical device of the third embodiment of the present invention utilizes MR imaging with good soft tissue resolution and high contrast resolution to achieve accurate synchronous image localization of the patient's tumor treatment, which is beneficial to improve treatment accuracy and efficiency.
  • the MR monitoring department avoids damage to the human body caused by X-rays or radionuclide scanning imaging in other monitoring equipment such as CT imaging equipment, and can scan the human body multiple times without causing harm to the human body.
  • the imaging device includes a PET monitoring unit and an MR monitoring unit. Since the MR scanning technology itself is difficult to accurately diagnose early cancer, the fourth embodiment of the present invention performs positron emission tomography (Positron Emission Tomography). PET technology and MR scanning technology combined with radiotherapy equipment, through the PET and MR monitoring department to accurately monitor the patient's site in real time, effectively improve the accuracy of radiotherapy.
  • the fourth embodiment of the present invention utilizes the advantages of PET imaging described above, and combines PET imaging technology and MR imaging technology into a radiotherapy device to achieve accurate monitoring of early cancer, and effectively improve the accuracy and therapeutic effect of radiation therapy. According to the position of the imaging device (for example, PET and MR monitoring department) and the radiation therapy department Relationships, the fourth embodiment of the present invention separately provides five different examples to illustrate the radiotherapy apparatus in detail.
  • Example 6 Examples of the present invention will be described in detail below with reference to FIG. 4 and FIGS. 10 to 12
  • FIG. 6 is a front view showing an example 6 of a radiation therapy apparatus according to a fourth embodiment of the present invention
  • FIG. 11 is a rear view showing an example 6 of the radiation therapy apparatus of the present invention
  • FIG. 12 is a side view of the example 6 of the radiation therapy apparatus of the present invention.
  • Figure 4 is a schematic view of a "T" shaped stent of a radiation therapy device of the present invention.
  • the radiation therapy apparatus includes a radiation therapy unit 10, a hospital bed 20, a PET monitoring unit 231, and an MR monitoring unit 241.
  • the radiation treatment unit 10 includes an accelerator 12 for emitting radiation; a central radiation perpendicular to the accelerator 12, in a planar shape, and a detector 13 for determining the contour shape of the therapeutic radiation beam, the detector 13 being foldable or accommodating as required.
  • the accelerator 12 and the detector 13 are located above and below the patient, respectively, and the radiation reaches the detector 13 through the patient.
  • the accelerator 12 and the detector 13 are rotated by the turntable 11 with the center line of the horizontal movement direction of the bed 21 as an axis.
  • the turntable 11 is provided with a cylindrical bed passage 15 penetrating the radiation treatment portion 10 for increasing the horizontal movement range of the bed 21.
  • the side of the radiation therapy unit 10 in which the accelerator 12 and the detector 13 are provided is the front side, and the bed 20 is located on the front side of the radiation therapy unit 10.
  • the bed 20 includes a bed board 21 for the patient to lie flat and a bed board drive 22 which is horizontally or tiltably movable by the bed board drive 22.
  • a disc-shaped rotary chassis 14 is provided on the bottom surface of the hospital bed 14, and the rotary chassis 14 rotates the hospital bed 20 centering on the vertical center line of the rotary chassis 14.
  • the PET monitoring unit 231 and the MR monitoring unit 241 are located on the back of the radiation therapy unit 10. In the face, an image is formed on the part of the patient 5 that needs to be examined.
  • the PET monitoring unit 231 and the MR monitoring unit 241 are independent devices, and are driven by independent driving devices, and are not affected by the radiation therapy unit 10.
  • the bed plate 21 needs to pass through the bed channel 15 of the radiation treatment unit 10 to reach the imaging channel 32 of the PET monitoring portion 231 and the MR monitoring portion 241, so that the length of the bed 21 needs to be lengthened, in order to reduce
  • a bracket 40 for supporting the bed board 21 is further provided between the PET monitoring unit 231 and the radiation therapy unit 10, because of the adverse effect of the elastic change of the elongated bed board 21 on the precise control of the bed 20.
  • bracket 40 For a detailed structural feature of the bracket 40, reference may be made to FIG. 4 and the detailed description of the bracket 40 of the first embodiment in the first embodiment, and details are not described herein.
  • FIG. 4 is a schematic view of a "T"-shaped bracket of the radiation therapy apparatus of the present invention
  • FIG. 13 is a side view of the example 7 of the radiation therapy apparatus of the present invention.
  • the radiotherapy apparatus shown in Fig. 13 includes a radiation therapy section 10, a hospital bed 20, a PET monitoring section 231, and an MR monitoring section 241. For details, refer to the description of the radiotherapy apparatus of Example 6.
  • the side where the radiation treatment unit 10 is provided with the accelerator 12 and the detector 13 is the front side
  • the PET monitoring unit 231 and the MR monitoring unit 241 are located on the front side of the radiation therapy unit 10
  • the hospital bed 20 is located in the radiation therapy unit 10 and the two monitoring units. between.
  • the bed 20 includes a bed board 21 for the patient to lie flat and a bed board drive 22 that is horizontally or tiltably movable under the drive of the bed board drive 22.
  • a disk-shaped rotary chassis 14 is provided on the bottom surface of the hospital bed 20, and the rotary chassis 14 rotates the hospital bed 20 around the vertical center line of the rotary chassis 14.
  • the PET monitoring section 231 and the MR monitoring section 241 form an image of a portion of the body of the patient 5 that needs to be inspected.
  • the PET monitoring unit 231 and the MR monitoring unit 241 are independent devices, and are driven by independent driving devices, and are not affected by the radiation therapy unit 10.
  • the bed 21 needs to pass through the imaging channel 32 of the PET monitoring unit 231 to reach the imaging channel 32 of the MR monitoring unit 241, so that the length of the bed 21 needs to be lengthened, in order to reduce the lengthened bed plate. 21 elastic changes to the bed
  • bracket 40 for supporting the bed board 21 between the PET monitoring unit 231 and the MR monitoring unit 241.
  • bracket 40 For a detailed structural feature of the bracket 40, reference may be made to FIG. 4 and the detailed description of the bracket 40 of the first embodiment in the first embodiment, and details are not described herein.
  • the positions of the PET monitoring unit 231 and the MR monitoring unit 241 can be interchanged.
  • the hospital bed 20 is located between the radiation therapy unit 10 and the two monitoring sections, and the bed board 20 can move the patient to the radiation range of the radiation therapy section 10 as long as it moves forward, and can move the patient backwards by moving the patient.
  • the one-way driving distance of the bed board 21 is shortened with respect to the example 6, so that the bed board 21 does not need to be too long, and space can be saved.
  • Example 8 Example 8 according to the present invention will be described in detail below with reference to Figs. 4 and 14) Fig.
  • the radiotherapy apparatus shown in Fig. 14 includes a radiotherapy unit 10, a hospital bed 20, a PET monitoring unit 231, and an MR monitoring unit 241.
  • a radiotherapy unit 10 for details, refer to the description of the radiotherapy apparatus of Example 6.
  • the side where the radiation treatment unit 10 is provided with the accelerator 12 and the probe 13 is the front side, and the hospital bed 20 is located on the front side of the radiation treatment unit 10.
  • the bed 20 includes a bed board 21 for a patient lying down and a bed board drive 22, which can be driven by the bed board drive 22 Move horizontally or tilted.
  • a disk-shaped rotary chassis 14 is provided on the bottom surface of the hospital bed 20, and the rotary chassis 14 rotates the hospital bed 20 around the vertical center line of the rotary chassis 14.
  • the PET monitoring unit 231 is located on the back surface of the radiation therapy unit 10, and the MR monitoring unit 241 is located on the front surface of the radiation therapy unit 10, and the radiation therapy unit 10 and the hospital bed 20 are located between the PET monitoring unit 231 and the MR monitoring unit 241.
  • the PET monitoring unit 231 and the MR monitoring unit 241 are independent devices, respectively, and are driven by independent driving devices, and are not affected by the radiation therapy unit 10.
  • the bed board 21 needs to pass through the bed passage 15 of the radiation treatment section 10 to reach the imaging passage 32 of the PET monitoring section 231, so that the bed board
  • the length of 21 needs to be lengthened.
  • a bracket 40 for supporting the bed board 21 is further disposed between the PET monitoring unit 231 and the radiation treatment unit 10.
  • bracket 40 For a detailed structural feature of the bracket 40, reference may be made to FIG. 4 and the detailed description of the bracket 40 of the first embodiment in the first embodiment, and details are not described herein.
  • the positions of the PET monitoring unit 231 and the MR monitoring unit 241 can be interchanged.
  • the MR monitoring portion 241 is placed at a position close to the hospital bed 20, and the bed plate 21 can be sent to the radiation of the radiation therapy portion 10 and the imaging channel 32 of the PET monitoring portion 231 as long as it moves horizontally forward. Inside, the horizontal movement rearward can shorten the one-way driving distance of the bed board 21 in the imaging channel 32 of the MR monitoring section 241 with respect to the example 6, so that the bed board 21 does not need to be too long, and space can be saved.
  • Example 9 Example 9 according to the present invention will be described in detail below with reference to Figs. 4 and 15) Fig.
  • the radiation therapy apparatus shown in Fig. 15 includes a radiation therapy section 10, a hospital bed 20, a PET monitoring section 231, and an MR monitoring section 241.
  • the side where the radiation treatment unit 10 is provided with the accelerator 12 and the probe 13 is the front side, and the hospital bed 20 is located on the back side of the radiation treatment unit 10.
  • the bed 20 includes a bed board 21 for a patient lying down and a bed board drive 22 that is horizontally or tiltably movable under the drive of the bed board drive 22.
  • a disk-shaped rotary chassis 14 is provided on the bottom surface of the hospital bed 20, and the rotary chassis 14 rotates the hospital bed 20 around the vertical center line of the rotary chassis 14.
  • the PET monitoring unit 231 and the MR monitoring unit 241 are located on the front side of the radiation therapy unit 10, and form an image on a part of the body of the patient 5 to be inspected.
  • the PET monitoring unit 231 and the MR monitoring unit 241 are independent devices, respectively, and are driven by independent driving devices, and are not affected by the radiation therapy unit 10.
  • the bed board 21 needs to pass through the bed passage 15 of the radiation treatment section 10 to reach the imaging passage 32 of the PET monitoring section 231, so that the bed board
  • the length of 21 needs to be lengthened.
  • a bracket 40 for supporting the bed board 21 is further disposed between the PET monitoring unit 231 and the radiation treatment unit 10.
  • the holder 40 can also be located between the PET monitoring unit 231 and the MR monitoring unit 241.
  • bracket 40 For a detailed structural feature of the bracket 40, reference may be made to FIG. 4 and the detailed description of the bracket 40 of the first embodiment in the first embodiment, and details are not described herein.
  • the positions of the PET monitoring portion 231 and the MR monitoring portion 241 may be interchanged or may be integrally formed.
  • Example 10 is a side elevational view of an exemplary embodiment of a radiation therapy device of the present invention.
  • the radiotherapy apparatus shown in Fig. 16 includes a radiation therapy section 10, a hospital bed 20, a PET monitoring section 231, and an MR monitoring section 241.
  • a radiation therapy section 10 includes a radiation therapy section 10, a hospital bed 20, a PET monitoring section 231, and an MR monitoring section 241.
  • the side of the radiation treatment unit 10 in which the accelerator 12 and the detector 13 are provided is a front surface
  • the hospital bed 20 is located on the front side of the radiation treatment unit 10, and the hospital bed 20 includes a bed board 21 for the patient to lie flat and a bed board driver 22, the bed board 21 can be moved horizontally or obliquely under the drive of the bed drive 22.
  • the PET monitoring unit 231 and the MR monitoring unit 241 are located between the hospital bed 20 and the radiation therapy unit 10, and form an image of a part of the body 5 that needs to be examined.
  • the PET monitoring unit 231 and the MR monitoring unit 241 are independent devices, respectively, and are driven by independent driving devices, and are not affected by the radiation therapy unit 10.
  • the bed 21 needs to pass through the bed path 15 of the imaging channel 32 of the PET monitoring unit 231 and the MR monitoring unit 241 to reach the treatment area of the radiation treatment unit 10, so that the length of the bed 21 needs to be lengthened.
  • the PET monitoring department In order to reduce the adverse effect of the elastic change of the elongated bed board 21 on the precise control of the bed 20, in the PET monitoring department
  • a bracket 40 for supporting the bed board 21 is also provided between the 231 and the radiation treatment unit 10.
  • the holder 40 can also be located between the PET monitoring unit 231 and the MR monitoring unit 241.
  • bracket 40 For a detailed structural feature of the bracket 40, reference may be made to FIG. 4 and the detailed description of the bracket 40 of the first embodiment in the first embodiment, and details are not described herein.
  • the positions of the PET monitoring portion 231 and the MR monitoring portion 241 may be interchanged or may be integrally formed.
  • the PET monitoring unit 231 and the MR monitoring unit 241 are close to the hospital bed 20, and the moving line of the bed board 21 is inspected and re-treated, and the treatment process of the therapeutic effect is also checked after the treatment to improve the entire treatment. s efficiency.
  • the PET monitoring unit 231 The distance between the MR monitoring unit 241 and the accelerator 12 of the radiation therapy unit 10 is significantly shortened, which is advantageous for reducing the driving error during the movement of the bed board 21, and the purpose of accurate treatment is achieved.
  • the fourth embodiment of the present invention selectively monitors the ward of a patient in need of treatment by combining PET imaging technology and MR scanning technology in a radiotherapy apparatus, thereby realizing accurate synchronized image localization of the patient's tumor treatment.
  • the imaging device includes a PET monitoring unit and a CT monitoring unit. Since the CT scanning technology itself is difficult to accurately diagnose early cancer, the fifth embodiment of the present invention performs positron emission tomography (Positron Emission Tomography). PET technology and CT scanning technology combined with radiotherapy equipment, through the PET and CT monitoring department to accurately monitor the patient's site in real time, effectively improve the accuracy of radiotherapy. As described in the first embodiment, in the early stage of tumor chemotherapy and radiotherapy, PET examination can find out whether the tumor treatment has taken effect and provide assistance for determining the next treatment plan.
  • the fifth embodiment of the present invention utilizes the advantages of PET imaging described above, and combines PET imaging technology and CT imaging technology into a radiotherapy device to achieve accurate monitoring of early cancer, and effectively improve the accuracy and therapeutic effect of radiation therapy. Similar to the fourth embodiment, the fifth embodiment of the present invention also provides five different examples to specify the radiation therapy apparatus in accordance with the positional relationship of the imaging apparatus (e.g., PET and CT monitoring section) with the radiation treatment section. It should be understood that the structures, features, and advantages in the five different examples of the fifth embodiment of the present invention can be referred to the five examples of the fourth embodiment and their corresponding FIGS. 10 to 16 unless otherwise specified.
  • the MR monitoring unit 241 is replaced with the CT monitoring unit 241, and details are not described herein.
  • the fifth embodiment of the present invention selectively monitors the ward of a patient in need of treatment by combining PET imaging technology and CT scanning technology into a radiotherapy apparatus, thereby realizing accurate synchronized image localization of the patient's tumor treatment. , effectively improving the treatment accuracy and effectiveness.
  • the present invention can also provide other embodiments, such as the method of combining the MR scanning technology and the CT scanning technology in the radiotherapy device, to selectively monitor the ward of the patient in need of treatment.

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Abstract

一种放射治疗设备，包括放射治疗部（10）、用于支撑并移动患者（5）的病床（20）、及设置在病床（20）的床板（21）水平移动方向上的成像设备（31），所述成像设备（31）用于定位患者（5）的病患部位。所述放射治疗设备通过成像设备（31）实时地对治疗中的患者（5）进行扫描，并根据扫描的结果调整治疗方案，有效地提高放射治疗的精度和速度，在保证足够的辐射剂量照射在肿瘤区域的同时尽可能减少损伤患者（5）的健康组织。

Description

放射治疗设备
本申请要求 2013年 5月 15日提交中国专利局、 申请号为
201310180654.2, 发明名称为 "放射治疗设备"的中国专利申请的优 先权， 其全部内容通过引用结合在本申请中。
技术领域 本发明涉及医疗设备领域，尤其是一种具有成像设备监控治疗功 能的放射治疗设备。 背景技术 放射治疗设备是指利用高能电磁辐射 (X辐射、 伽马辐射)或粒子 辐射 (电子、 质子、 碳离子)来破坏病变的组织的设备， 在医学中广泛 应用于肿瘤治疗。在放射治疗设备的放射中心有针对性地产生高放射 剂量， 但是在辐射的过程中常常会出现辐射目标在身体中变化的问 题。 如肿瘤在计划放射和实际放射之间的时间内已经长大或已经缩 小。而且在治疗的过程中根据辐射的进行，病变区域的中心发生变化。 为此已经提出在放射过程中通过成像设备来监控放射目标在身体中 的位置，以相应的控制射线或必要时能够中断放射并由此提高治疗效 果， 这对于上腹部和下腹部以及盆腔中的放射目标、 如前列腺来说尤 其重要， 为使目标区域之外的放射剂量最小并由此保护健康组织， 全 部射线的产生环绕病变区域进行。由此使射线剂量集中在旋转轴区域 内的射线中。
用于监控治疗的成像介质提出了 X射线装置以及超声波装置。 但这些装置仅对该问题提供了有限的解决方案。超声波成像对于很多 应用来说缺乏穿透深度。 在 X射线成像中 X射线传感器可能会被加 速器的伽马射线摧毁或伤害。此外对组织的拍摄质量常常是不能达到 满意的效果。 因此目前主要釆用辅助定位器和固定装置或者粘贴在患者皮肤 上的标记来保证患者在放射装置中位于与先前放射计划中相同的位 置并由此使放射装置的放射中心与放射目标也事实上重合。但这些辅 助定位器和固定装置比较昂贵， 并且对患者带来不适的感觉。 此外还 蕴藏着放射误差的危险，因为在放射过程中通常不会再检查放射中心 的实际位置。 这些问题都造成了影响治疗过程的精度和速度的因素。 在保证足够高的辐射剂量照射在肿瘤区域的同时尽可能减少损害患 者的健康组织成为急需解决的问题。 发明内容 为了解决现有技术中的问题，有必要在放射治疗的过程中实时的 对肿瘤的状态进行监控， 并进行辐射调整。 本发明提供一种具有成像 设备可以监控治疗的放射治疗设备， 通过成像设备实时的对病患（病 灶）去进行准确监控， 有效的提高放射治疗的精度。 本发明的放射治疗设备包括： 放射治疗部； 用于支撑并移动患者 的病床； 及设置在病床的床板水平移动方向上的成像设备， 所述成像 设备用于定位患者的病患部位， 其中， 所述成像设备包括使床板通过 的成像通道， 所述病床根据放射治疗或成像的需要， 可使床板沿床板 水平移动方向在放射治疗部与成像设备之间移动。 作为本发明的一个实施例， 所述成像设备可以包括 PET监控部、 CT监控部、 MR监控部中的任意一种， 或者所述成像设备包括 PET 监控部和 CT监控部，或者所述成像设备包括 PET监控部和 MR监控 部， 或者所述成像设备包括 CT监控部和 MR监控部。 作为本发明的一个实施例，所述放射治疗设备还包括用于支撑病 床的支架。 作为本发明的一个实施例， 所述支架包括支撑床板的升降杆， 以 及对升降杆进行升降驱动的底框。 作为本发明的一个实施例， 所述升降杆为上宽下窄的 "T" 字型 升降杆。 作为本发明的一个实施例，所述升降杆接触病床的上表面设有滑 动轮。 作为本发明的一个实施例， 所述病床位于放射治疗部的正面， 所 述 PET监控部、 CT监控部、 MR监控部中的任意一种位于放射治疗 部的背面。 作为本发明的一个实施例， 所述 PET监控部、 CT监控部、 MR 监控部中的一种位于放射治疗部的正面，病床位于放射治疗部和该所 述 PET监控部、 CT监控部、 MR监控部中的一种之间。 作为本发明的一个实施例， 所述 PET监控部、 CT监控部、 MR 监控部中的一种位于放射治疗部的正面， 病床位于放射治疗部的背 面。 作为本发明的一个实施例， 所述病床位于放射治疗部的背面， 所 述 PET监控部、 CT监控部、 MR监控部中的一种位于放射治疗部和 病床之间。 作为本发明的一个实施例， 所述病床位于放射治疗部的正面， 所 述 PET监控部、 CT监控部、 MR监控部中的一种位于放射治疗部和 病床之间。 作为本发明的一个实施例， 所述病床位于放射治疗部的正面、 PET监控部和 MR监控部位于放射治疗部的背面。 作为本发明的一个实施例， 所述放射治疗部和病床位于 PET监 控部和 MR监控部之间。 作为本发明的一个实施例， 所述 PET监控部和 MR监控部位于 放射治疗部的正面， 病床位于放射治疗部的背面。 作为本发明的一个实施例， 所述病床位于放射治疗部的正面， PET监控部与 MR监控部位于放射治疗部和病床之间。 作为本发明的一个实施例， 所述 PET监控部和 MR监控部一体 形成。 作为本发明的一个实施例， 所述病床位于放射治疗部的正面， 所 述 PET监控部和 CT监控部位于放射治疗部的背面。 作为本发明的一个实施例， 所述放射治疗部和病床位于 PET监 控部和 CT监控部之间。 作为本发明的一个实施例，所述 PET监控部和 CT监控部位于放 射治疗部的正面， 病床位于放射治疗部的背面。 作为本发明的一个实施例， 所述病床位于放射治疗部的正面， PET监控部与 CT监控部位于放射治疗部和病床之间。 作为本发明的一个实施例，所述 PET监控部和 CT监控部一体形 成。 作为本发明的一个实施例，所述放射治疗部包括使床板通过的床 板通道， 所述病床根据放射治疗或成像的需要， 可使床板沿床板水平 移动方向在床板通道与成像通道之间移动。 作为本发明的一个实施例， 所述成像设备包括驱动装置， 所述驱 动装置独立于所述放射治疗部。 作为本发明的一个实施例，所述病床底面包括带动病床旋转的旋 转底盘。 作为本发明的一个实施例，所述放射治疗部的底面包括带动放射 治疗部进行旋转的旋转底盘。 作为本发明的一个实施例，所述 CT监控部包括 CT监控器和 CT 支架， CT监控器可倾斜的设置于 CT支架上。 本发明实施例提供的放射医疗设备结合不同的成像设备，实现对 病人的肿瘤治疗的精确同步影像定位， 有效的提高了治疗精度和效 率。 本发明实施例还提供将不同的成像设备与放射治疗部进行结合， 例如， 将 PET显像技术和 CT扫描技术（或 MR扫描技术）结合于放 疗设备中的方式， 可以有选择性的对需要治疗的患者的病区进行监 控， 更加便利治疗。 附图说明 图 1为本发明的放射治疗设备的第一实施例示例 1正面示意图； 图 2为本发明的放射治疗设备的第一实施例示例 1背面示意图； 图 3为本发明的放射治疗设备的第一实施例示例 1侧面示意图； 图 4为本发明的放射治疗设备的 T型支架示意图；
图 5为本发明的放射治疗设备的第一实施例示例 2侧面示意图； 图 6为本发明的放射治疗设备的第一实施例示例 3侧面示意图； 图 7为本发明的放射治疗设备的第一实施例示例 4侧面示意图； 图 8为本发明的放射治疗设备的第一实施例示例 5侧面示意图； 图 9为本发明第二实施例的放射治疗设备的 CT监控部倾斜示意 图；
图 10为本发明的放射治疗设备的第四实施例示例 6正面示意图； 图 11为本发明的放射治疗设备的第四实施例示例 6背面示意图； 图 12为本发明的放射治疗设备的第四实施例示例 6侧面示意图； 图 13为本发明的放射治疗设备的第四实施例示例 7侧面示意图； 图 14为本发明的放射治疗设备的第四实施例示例 8侧面示意图； 图 15为本发明的放射治疗设备的第四实施例示例 9侧面示意图； 图 16为本发明的放射治疗设备的第四实施例示例 10侧面示意 图； 以及
图 17为现有的包括 CT扫描仪的放疗设备示意图。
符号说明
1 : 治疗头 2: 机架 3: 处理器 5: 患者
10 放射治疗部 11 : 转盘 12: 加速器
13 探测器 14: 旋转底盘 15: 床板通道
20 病床 21 : 床板 22: 床板驱动器
30 PET机架 （MR机架， CT机架）
31 PET监控部 （MR监控部， CT监控部）
32 成像通道 40: 支架
41 滑动轮 42: 升降杆 43: 底框
231 : PET监控部 241 : MR监控部 （ CT监控部） 具体实施方式 以下结合附图详细说明本发明的具体实施例。 第一实施例： 成像设备为 PET监控部 本发明第一实施例将正电子发射计算机断层显像 （ Positron Emission Tomography, 简称 PET )技术与放疗设备结合的方式， 通过 PET监控部实时的对病去进行准确监控， 有效的提高放射治疗的精 度。
PET成像是利用发射正电子的同位素作为标记物，将其引入脑内 某一局部地区参与已知的生化代谢过程，利用现代化计算机断层扫描 技术将标记物所参与的特定代谢过程的代谢率以立体成像的形式表 达出来。 目前 PET检查 85%是用于肿瘤的检查， 因为绝大部分恶性 肿瘤葡萄糖代谢高， FDG作为与葡萄糖结构相似的化合物， 静脉注 射后会在恶性肿瘤细胞内积聚起来， 所以 PET 能够鉴别恶性肿瘤与 良性肿瘤及正常组织，同时也可对复发的肿瘤与周围坏死及瘢痕组织 加以区分， 现多用于肺癌、 乳腺癌、 大肠癌、 卵巢癌、 淋巴瘤， 黑色 素瘤等的检查， 其诊断准确率在 90%以上。这种检查对于恶性肿瘤病 是否发生了转移， 以及转移的部位一目了然， 这对肿瘤诊断的分期， 是否需要手术和手术切除的范围起到重要的指导作用。 在肿瘤化疗、 放疗的早期， PET检查即可发现肿瘤治疗是否已经起效， 并为确定下 一步治疗方案提供帮助。 本发明中正是利用上述 PET成像优点， 将 PET成像技术和放疗技术结合的方式，有效的提高了放射治疗的准确 性和治疗效果。 根据成像设备（例如， PET监控部）与放射治疗部的位置关系， 本发明第一实施例又进一步分别提供 5 种不同的示例来详细说明放 射治疗设备。 示例 1 (以下参考图 1至图 4详细说明本发明的示例 1 ): 图 1为本发明的放射治疗设备的第一实施例示例 1正面示意图； 图 2为本发明的放射治疗设备的第一实施例示例 1背面示意图； 图 3 为本发明的放射治疗设备的第一实施例示例 1侧面示意图； 图 4为本 发明的放射治疗设备的 T型支架 40示意图。 如图 1至图 4所示， 放 射治疗设备包括放射治疗部 10、 PET监控部 31及病床。 其中放射治 疗部 10包括用于发射放射线的加速器 12; 垂直于加速器 12射出的 中心放射线， 呈平面状， 用于确定治疗放射线束的轮廓形状的探测器 13， 探测器 13根据要求可折叠或收纳在放射治疗部 10内。 在初始状 态下所述加速器 12和探测器 13分别位于患者的上方和下方，放射线 通过患者到达探测器 13上。 为了调整放射线的入射角度， 所述加速 器 12和探测器 13在转盘 11的带动下以床板 21水平移动方向的中心 线为轴心进行旋转。所述转盘 11上设有贯通转盘 11的圓筒形床板通 道 15， 用于增加病床的水平移动范围。
以放射治疗部 10设置加速器 12和探测器 13的一侧为正面， 病 床位于放射治疗部 10的正面。 所述病床包括用于患者平躺的床板 21 及床板驱动器 22， 床板 21在床板驱动器 22的驱动下可水平或倾斜 移动。 在病床的底面上还设有圓盘状的旋转底盘 14， 所述旋转底盘 14以旋转底盘 14的垂直中心线为中心， 带动病床进行旋转。 所述 PET监控部 31位于放射治疗部 10的背面、 对人体中需要 检查的部分形成图像。 本发明的放射治疗设备中， PET监控部 31为 独立的设备， 通过独立的驱动装置进行驱动， 不受放射治疗部 10的 影响。
在示例 1的放射治疗设备中， 病床需要通过放射治疗部 10的床 板通道 15后才能到达 PET监控部 31的成像通道 32， 这样病床的长 度就需要加长， 为了减少加长后的床板 21弹性变化对病床精确控制 的不利影响， 在 PET监控部 31及放射治疗部 10之间还设有支撑床 板的支架 40。
所述支架 40为了配合床板 21 的升降， 也设计为可升降的支架
40， 为此所述支架 40包括： 升降杆 42， 及对升降杆 42进行升降驱 动的底框 43， 所述升降杆 42可以是上宽下窄的 T型结构， 这种结构 可以增加升降杆 42与床板 21的接触面积、增加受力面， 对设备的稳 定性有利， 在升降杆 42的上方还可以增加滑动轮 41， 减少床板 21 移动时与升降杆 42上表面的摩擦力。 示例 2 (以下参考图 5详细说明本发明的示例 2 ): 图 5为本发明的放射治疗设备的第一实施例示例 2侧面示意图。 如图 5所示放射治疗设备包括放射治疗部 10、PET监控部 31及病床。 其中放射治疗部 10包括用于发射放射线的加速器 12; 垂直于加速器 12射出的中心放射线， 呈平面状， 用于确定治疗放射线束的轮廓形 状的探测器 13， 探测器 13根据要求可折叠或收纳在放射治疗部 10 内，在初始状态下所述加速器 12和探测器 13分别位于患者的上方和 下方， 所述放射线通过患者到达探测器 13上。 为了调整放射线的入 射角度，所述加速器 12和探测器 13在转盘 11的带动下以床板 21水 平移动方向的中心线为轴心进行旋转。 所述转盘 11上设有贯通转盘 11的圓筒形床板通道 15， 用于增加病床的水平移动范围。
以放射治疗部 10设置加速器 12和探测器 13的一侧为正面， PET 监控部 31位于放射治疗部 10的正面，病床位于放射治疗部 10和 PET 监控部 31之间。所述病床包括用于患者平躺的床板 21及床板驱动器 22,床板 21在床板驱动器 22的驱动下可水平或倾斜移动。 在病床的 底面上还设有圓盘状的旋转底盘 14，所述旋转底盘 14以旋转底盘 14 的垂直中心线为中心， 带动病床进行旋转。
所述 PET监控部 31对人体中需要检查的部分形成图像。 本发明 的放射治疗设备中， PET监控部 31为独立的设备， 通过独立的驱动 装置进行驱动， 不受放射治疗部 10的影响。
与第一实施例示例 1 不同的是， 在这里病床位于放射治疗部 10 和 PET监控部 31之间， 病床只要向前水平移动就能将患者送到放射 范围内， 向后水平移动就能将患者送到 PET监控部 31的成像区域， 相对于示例 1， 检查的过程中床板 21不需要穿过放射治疗部 10， 所 以床板 21不需要太长， 可以节省空间。 示例 2中， 所述放射治疗部 10也可以没有床板通道 15。 这是由 于床板通道的设置是为了便于床板 21通过到达 PET监控部 31 (如示 例 1所示）， 然而示例 2中， 如上所述， PET监控部 31位于放射治疗 部 10的正面，病床位于放射治疗部 10和 PET监控部 31之间， 因此， 床板 21无需穿过放射治疗部 10， 也就是说， 放射治疗部 10也可以 没有床板通道 15。 示例 3 (以下参考图 4、 图 6详细说明根据本发明的第一实施例 的示例 3 ): 图 6为本发明的放射治疗设备的第一实施例示例 3侧面示意图。 如图 6所示放射治疗设备包括放射治疗部 10、PET监控部 31及病床。 其中放射治疗部 10包括用于发射放射线的加速器 12; 垂直于加速器 12射出的中心放射线， 呈平面状， 用于确定治疗放射线束的轮廓形 状的探测器 13， 探测器 13根据要求可折叠或收纳在放射治疗部 10 内，在初始状态下所述加速器 12和探测器 13分别位于患者的上方和 下方， 所述放射线通过患者到达探测器 13上。 为了调整放射线的入 射角度，所述加速器 12和探测器 13在转盘 11的带动下以床板 21水 平移动方向的中心线为轴心进行旋转。 所述转盘 11上设有贯通转盘 11的圓筒形床板通道 15， 用于增加病床的水平移动范围。
以放射治疗部 10设置加速器 12和探测器 13的一侧为正面， 病 床位于放射治疗部 10的背面。 所述病床包括用于患者平躺的床板 21 及床板驱动器 22， 所述床板 21在床板驱动器 22的驱动下可水平或 倾斜移动。 在病床的底面上还设有圓盘状的旋转底盘 14， 所述旋转 底盘 14以旋转底盘 14的垂直中心线为中心， 带动病床进行旋转。
所述 PET监控部 31位于病床与放射治疗部 10之间、 对人体中 需要检查的部分形成图像， 根据本发明的放射治疗设备中， PET监控 部 31为独立的设备， 通过独立的驱动装置进行驱动， 不受放射治疗 部 10的影响。
在示例 3的放射治疗设备中， 病床需要通过 PET监控部 31的成 像通道 32后才能到达放射治疗部 10的床板通道 15， 这样病床的长 度就需要加长， 为了减少加长后的床板 21弹性变化对病床精确控制 的不利影响， 在 PET监控部 31及放射治疗部 10之间还设有支撑床 板的支架 40。
图 4为本发明的放射治疗设备的 T型支架示意图。 支架 40为了 配合床板 21 的升降， 也设计为可升降的支架 40， 为此所述支架 40 包括： 升降杆 42， 及对升降杆 42进行升降驱动的底框 43， 所述升降 杆 42可以是上宽下窄的 T型结构，这种结构可以增加升降杆 42与床 板 21的接触面积、 增加受力面， 对设备的稳定性有利， 在升降杆 42 的上方还可以增加滑动轮 41， 减少床板 21移动时与升降杆 42上表 面的摩擦力。
相对于第一实施例示例 1， 在这里 PET监控部 31靠近病床， 病 床的移动线路符合先检查再治疗，治疗后还需检查治疗效果的治疗流 程， 提高整个治疗的效率。 示例 4 (以下参考图 4、 图 7详细说明本发明第一实施例的示例
4 ): 图 7为本发明的放射治疗设备的第一实施例示例 4侧面示意图。 如图 7所示放射治疗设备包括放射治疗部 10、PET监控部 31及病床。 其中放射治疗部 10包括用于发射放射线的加速器 12; 垂直于加速器 12射出的中心放射线， 呈平面状， 用于确定治疗放射线束的轮廓形 状的探测器 13， 探测器 13根据要求可折叠或收纳在放射治疗部 10 内，在初始状态下所述加速器 12和探测器 13分别位于患者的上方和 下方， 所述放射线通过患者到达探测器 13上。 为了调整放射线的入 射角度，所述加速器 12和探测器 13在转盘 11的带动下以床板 21水 平移动方向的中心线为轴心进行旋转。 所述转盘 11上设有贯通转盘 11的圓筒形床板通道 15， 用于增加病床的水平移动范围。
以放射治疗部 10设置加速器 12和探测器 13的一侧为正面， 病 床位于放射治疗部 10的背面。 所述病床包括用于患者平躺的床板 21 及床板驱动器 22， 所述床板 21在床板驱动器 22的驱动下可水平或 倾斜移动。 在病床的底面上还设有圓盘状的旋转底盘 14， 所述旋转 底盘 14以旋转底盘 14的垂直中心线为中心， 带动病床进行旋转。
所述 PET监控部 31位于放射治疗部 10的正面、 对人体中需要 检查的部分形成图像。 本发明的放射治疗设备中， PET监控部 31为 独立的设备， 通过独立的驱动装置进行驱动， 不受放射治疗部 10的 影响。
在示例 4的放射治疗设备中， 病床需要通过放射治疗部 10的床 板通道 15后才能到达 PET监控部 31的成像通道 32， 这样病床的长 度就需要加长， 为了减少加长后的床板 21弹性变化对病床精确控制 的不利影响， 在 PET监控部 31及放射治疗部 10之间还设有支撑床 板的支架 40。
图 4为本发明的放射治疗设备的 T型支架示意图。 支架 40为了 配合床板 21 的升降， 也设计为可升降的支架 40， 为此所述支架 40 包括： 升降杆 42， 及对升降杆 42进行升降驱动的底框 43， 所述升降 杆 42可以是上宽下窄的 T型结构，这种结构可以增加升降杆 42与床 板 21的接触面积、 增加受力面， 对设备的稳定性有利， 在升降杆 42 的上方还可以增加滑动轮 41， 减少床板 21移动时与升降杆 42上表 面的摩擦力。
相对于前几个示例， 在这里 PET监控部 31与放射治疗部 10的 加速器 12的距离明显缩短， 对于减少病床移动过程中的驱动误差有 利， 实现了精确治疗的目的。 示例 5 (以下参考图 4、 图 8详细说明本发明第一实施例的示例 5 ) 图 8为本发明的放射治疗设备的第一实施例示例 5侧面示意图。 如图 8所示放射治疗设备包括放射治疗部 10、PET监控部 31及病床。 其中放射治疗部 10包括用于发射放射线的加速器 12; 垂直于加速器 12射出的中心放射线， 呈平面状， 用于确定治疗放射线束的轮廓形 状的探测器 13， 探测器 13根据要求可折叠或收纳在放射治疗部 10 内，在初始状态下所述加速器 12和探测器 13分别位于患者的上方和 下方， 所述放射线通过患者到达探测器 13上。 为了调整放射线的入 射角度，所述加速器 12和探测器 13在转盘 11的带动下以床板 21水 平移动方向的中心线为轴心进行旋转。 所述转盘 11上设有贯通转盘 11的圓筒形床板通道 15， 用于增加病床的水平移动范围。
以放射治疗部 10设置加速器 12和探测器 13的一侧为正面， 病 床位于放射治疗部 10的正面， 所述病床包括用于患者平躺的床板 21 及床板驱动器 22， 所述床板 21在床板驱动器 22的驱动下可水平或 倾斜移动。 在病床的底面上还设有圓盘状的旋转底盘 14， 所述旋转 底盘 14以旋转底盘 14的垂直中心线为中心， 带动病床进行旋转。
所述 PET监控部 31位于放射治疗部 10的正面、 对人体中需要 检查的部分形成图像。 根据本发明的放射治疗设备中， PET监控部 31 为独立的设备， 通过独立的驱动装置进行驱动， 不受放射治疗部 10的影响。
在示例 5的放射治疗设备中， 病床需要通过 PET监控部 31的成 像通道 32后才能到达放射治疗部 10的床板通道 15， 这样病床的长 度就需要加长， 为了减少加长后的床板 21弹性变化对病床精确控制 的不利影响， 在 PET监控部 31及放射治疗部 10之间还设有支撑床 板的支架 40。
图 4为本发明的放射治疗设备的 T型支架示意图。 支架 40为了 配合床板 21 的升降， 也设计为可升降的支架 40， 为此所述支架 40 包括： 升降杆 42， 及对升降杆 42进行升降驱动的底框 43， 所述升降 杆 42可以是上宽下窄的 T型结构，这种结构可以增加升降杆 42与床 板 21的接触面积、 增加受力面， 对设备的稳定性有利， 在升降杆 42 的上方还可以增加滑动轮 41， 减少床板 21移动时与升降杆 42上表 面的摩擦力。
类似于示例 2， 在示例 5中， 所述放射治疗部 10也可以没有床 板通道 15。 这是由于床板通道的设置是为了便于床板 21 通过到达 PET监控部 31 (如示例 1所示；)， 然而示例 5中， 如上所述， PET监 控部 31位于放射治疗部 10的正面，床板 21无需穿过放射治疗部 10， 也就是说， 放射治疗部 10也可以没有床板通道 15。
相对于前几个示例， 在这里 PET监控部 31靠近病床， 病床的移 动线路符合先检查再治疗， 治疗后还需检查治疗效果的治疗流程， 提 高整个治疗的效率。 而且 PET监控部 31与放射治疗部 10的加速器 12 的距离明显缩短， 对于减少病床移动过程中的驱动误差有利， 实 现了精确治疗的目的。 PET成像技术作为专门针对肿瘤的技术，其对肿瘤的检查优势是
CT或磁共振等设备无法比拟的， 本发明第一实施例的放射医疗设备 利用 PET成像技术， 实现对病人的肿瘤治疗的精确同步影像定位， 有效的提高了治疗精度和效率。 第二实施例： 成像设备为 CT监控部
X线断层扫描 （CT: Computed Tomography ), 它是利用精确准 直的 X线束与灵敏度极高的探测器一同围绕人体的某一部位作一个 接一个的断面扫描， 并且通过 CT扫描可以重建出肿瘤的精确三维位 置。 在公开号为 CN101801272 的中国专利中就公开了一种利用 CT 扫描技术和放疗设备组合在一起的技术方案。如图 17所示， 具有 CT 扫描仪的直线加速器包括： 治疗头 1， 所述治疗头向患者 5发射兆伏 级辐射射束； 多个 X射线源， 位于机架 2内， 用于向患者 5发射相 应的千伏级辐射射束； 检测器， 位于机架 2内， 用于接收多个千伏级 辐射射束； 以及处理器 3， 基于所述检测器接收的多个千伏级辐射射 束来生成所述体积的三维图像。 X 线断层扫描 （CT : Computed Tomography )是公知技术， 它是利用精确准直的 X线束与灵敏度极 高的探测器一同围绕人体的某一部位作断面扫描， 并且通过 CT扫描 可以重建出肿瘤的精确三维位置。 但是这种附属在放疗设备内部的 CT扫描设备因为空间和结构受限， 成像效果无法与独立的 CT扫描 仪相比较。 本发明中通过将 CT监控部和放射治疗部结合的方法， 有效的提 高放射治疗的精度和速度。 与第一实施例类似的， 根据第二实施例成 像设备（例如， CT监控部）与放射治疗部的位置关系， 本发明第二 实施例也分别提供 5种不同的示例来详细说明放射治疗设备。 需要了解的是， 如无特别说明， 本发明第二实施例的 5种不同示 例中的结构、特征和优点可以参考第一实施例的 5种示例及其对应的 图 1至图 8，只是将其中的 PET监控部 31替换为 CT监控部 31， PET 机架 30替换为 CT机架 30即可， 在此不予赘述。 本发明第二实施例的放射治疗设备中， CT监控部 31为独立的设 备， 通过独立的驱动装置进行驱动， 不受放射治疗部 10的影响。 如 图 9所示 CT监控部 31在 CT机架 30上进行前后 （ A-B )倾斜， 通 过这种方法 CT可以生成病变区域的精确立体图像，对治疗极为有利。 根据本发明第二实施例的放射医疗设备， 通过和 CT监控部的组 合使用可以在任意位置上实现对病人的肿瘤治疗和精确同步影像定 位， 有利于提高治疗精度和效率。 在 CT扫描过程中可以重建出肿瘤 的精确三维位置， 这大大提高了放射线的肿瘤治疗精度， 可以更精确 地避免对肿瘤附近重要组织的照射， 也大大提高了肿瘤的定位速度， 在完成 CT扫描后可以在短时间内进行肿瘤放射治疗， 期间不需要改 变病人的体位， 因此可以大大加速从定位到治疗的速度和精度， 加快 了治疗的流程。 第三实施例： 成像设备为 MR监控部 磁共振成像系统（ Magnetic Resonance， 简称 MR )是一种基于所 检测到的来自进动的核磁矩的射频信号对在成像空间中的患者或其 它物体进行成像的医疗诊断装置。在现代医疗诊断的断面图像处理领 域， 作为 "非侵入性，， ( Non-invasive )检查方法， MR对人体没有电 离辐射损伤、 MR能获得原生三维断面成像而无需重建就可获得多方 位的图像、 MR获取的诊断对象的断面图像软组织结构显示清晰， 而 且 MR获取的多序列成像、 多种图像类型， 为明确病变性质提供更丰 富的影像信息。 在公开号为 CN101347656专利中， 公开了一种组合放射治疗和 磁共振设备方案，其中具体公开了放射治疗部分设置在磁共振诊断部 分的内腔中，通过磁共振诊断设备在放射治疗期间进行高质量的图像 监控。 这种方案虽然能同时用 MR 的图像引导放疗准确治疗， 但是 MR强磁场会改变放疗电子束的轨迹， 同时也会干扰 X射线的轨迹， 所以很难做到准确控制 X射线的治疗剂量。 本发明第三实施例提供一种放射治疗设备， 通过磁共振（MR: Magnetic resonance )监控部对病变区域（如肿瘤） 的状态进行监控， 并使 MR的强磁场不影响放射治疗中的 X射线轨迹， 有效的提高放 射治疗的精度。 同样的， 与第一实施例类似， 根据第三实施例成像设备（例如， MR监控部）与放射治疗部的位置关系， 本发明第三实施例也分别提 供 5种不同的示例来详细说明放射治疗设备。 需要了解的是， 如无特 别说明， 本发明第三实施例的 5种不同示例中的结构、特征和优点可 以参考第一实施例的 5种示例及其对应的图 1至图 8， 只是将其中的 PET监控部 31替换为 MR监控部 31， PET机架 30替换为 MR机架 30即可， 在此不再赘述。 本发明第三实施例的放射医疗设备利用 MR成像具有良好软组 织分辨力和对比分辨率高的特性，实现对病人的肿瘤治疗的精确同步 影像定位， 有利于提高治疗精度和效率。 而且通过 MR监控部， 避免 了其他监控设备如 CT成像设备中的 X线或放射性核素扫描显像等射 线辐射对人体的损害， 可以多次对人体进行扫描， 不会对人体造成伤 害。 第四实施例： 成像设备包括 PET监控部和 MR监控部 由于 MR扫描技术本身很难做到精确的癌症早期诊断，本发明第 四实施例将正电子发射计算机断层显像 （ Positron Emission Tomography, 简称 PET )技术和 MR扫描技术结合于放疗设备中的方 式， 通过 PET与 MR监控部实时的对病患部位进行准确监控， 有效 的提高放射治疗的精度。 如第一实施例所述， 在肿瘤化疗、放疗的早期， PET检查即可发 现肿瘤治疗是否已经起效， 并为确定下一步治疗方案提供帮助。 本发 明第四实施例正是利用上述 PET成像优点， 将 PET成像技术和 MR 成像技术结合于放疗设备的方式， 实现对早期癌症的准确监控， 有效 的提高了放射治疗的准确性和治疗效果。 根据成像设备 (例如， PET与 MR监控部）与放射治疗部的位置 关系，本发明第四实施例又分别提供 5种不同的示例来详细说明放射 治疗设备。
示例 6 (以下参考图 4以及图 10至图 12详细说明本发明的示例
6 ): 图 10为本发明第四实施例的放射治疗设备的示例 6正面示意图； 图 11为本发明的放射治疗设备的示例 6背面示意图； 图 12为本发明 的放射治疗设备的示例 6侧面示意图； 图 4为本发明的放射治疗设备 的 "T" 字型支架示意图。 如图 10至图 12所示， 放射治疗设备包括 放射治疗部 10、 病床 20、 PET监控部 231及 MR监控部 241。 其中 放射治疗部 10 包括用于发射放射线的加速器 12; 垂直于加速器 12 射出的中心放射线、 呈平面状， 用于确定治疗放射线束的轮廓形状的 探测器 13， 探测器 13根据要求可折叠或收纳在放射治疗部 10内。 在初始状态下所述加速器 12和探测器 13分别位于患者的上方和下 方，放射线通过患者到达探测器 13上。 为了调整放射线的入射角度， 所述加速器 12和探测器 13在转盘 11的带动下以床板 21水平移动方 向的中心线为轴心进行旋转。 所述转盘 11上设有贯通放射治疗部 10 的圓筒形床板通道 15， 用于增加床板 21的水平移动范围。
以放射治疗部 10设有加速器 12和探测器 13的一侧为正面， 病 床 20位于放射治疗部 10的正面。 所述病床 20包括用于患者平躺的 床板 21及床板驱动器 22， 床板 21在床板驱动器 22的驱动下可水平 或倾斜移动。 在病床 20的底面上还设有圓盘状的旋转底盘 14， 所述 旋转底盘 14以旋转底盘 14的垂直中心线为中心， 带动病床 20进行 旋转。
所述 PET监控部 231和 MR监控部 241位于放射治疗部 10的背 面， 对患者 5身体中需要检查的部位形成图像。 所述 PET监控部 231 和 MR监控部 241分别为独立的设备，通过独立的驱动装置进行驱动， 不受放射治疗部 10的影响。
在本实施例的放射治疗设备中， 床板 21需要通过放射治疗部 10 的床板通道 15后才能到达 PET监控部 231和 MR监控部 241的成像 通道 32， 这样床板 21的长度就需要加长， 为了减少加长后的床板 21 弹性变化对病床 20精确控制的不利影响， 在 PET监控部 231及放射 治疗部 10之间还设有支撑床板 21的支架 40。
关于支架 40的具体结构特征可以参考图 4以及第一实施例中示 例 1的关于支架 40的详细描述， 在此不予赘述。
上述支架 40也可以设置在 PET监控部 231和 MR监控部 241之 间。 示例 7 (以下参考图 4、 图 13详细说明根据本发明的示例 7 ) 图 4 为本发明的放射治疗设备的 "T" 字型支架示意图； 图 13 为本发明的放射治疗设备的示例 7侧面示意图。 如图 13所示放射治 疗设备包括放射治疗部 10、 病床 20、 PET监控部 231及 MR监控部 241， 详细内容可以参考示例 6关于放射治疗设备的说明。
以放射治疗部 10设有加速器 12和探测器 13的一侧为正面， PET 监控部 231与 MR监控部 241位于放射治疗部 10的正面，病床 20位 于放射治疗部 10和所述两个监控部之间。所述病床 20包括用于患者 平躺的床板 21及床板驱动器 22， 床板 21在床板驱动器 22的驱动下 可水平或倾斜移动。在病床 20的底面上还设有圓盘状的旋转底盘 14， 所述旋转底盘 14以旋转底盘 14的垂直中心线为中心， 带动病床 20 进行旋转。 所述 PET监控部 231和 MR监控部 241对患者 5身体中需要检 查的部分形成图像。 所述 PET监控部 231和 MR监控部 241分别为 独立的设备， 通过独立的驱动装置进行驱动， 不受放射治疗部 10的 影响。
在本实施例的放射治疗设备中，床板 21需要通过 PET监控部 231 的成像通道 32后才能到达 MR监控部 241的成像通道 32内，这样床 板 21的长度就需要加长，为了减少加长后的床板 21弹性变化对病床
20精确控制的不利影响， 在 PET监控部 231及 MR监控部 241之间 还设有支撑床板 21的支架 40。
关于支架 40的具体结构特征可以参考图 4以及第一实施例中示 例 1的关于支架 40的详细描述， 在此不予赘述。
在这里 PET监控部 231和 MR监控部 241的位置可以互换。 与示例 6不同的是病床 20位于放射治疗部 10和两个监控部之 间，床板 20只要向前移动就能将患者送到放射治疗部 10的放射范围 内， 向后移动就能将患者送到 PET监控部 231和 MR监控部 241的 成像通道 32内， 相对于示例 6， 床板 21的单向驱动距离变短， 所以 床板 21不需要太长， 可以节省空间。 示例 8 (以下参考图 4、 图 14详细说明根据本发明的示例 8 ) 图 14为本发明的放射治疗设备的示例 8侧面示意图。如图 14所 示放射治疗设备包括放射治疗部 10、病床 20、 PET监控部 231及 MR 监控部 241， 详细内容可以参考示例 6关于放射治疗设备的说明。
以放射治疗部 10设有加速器 12和探测器 13的一侧为正面， 病 床 20位于放射治疗部 10的正面。 所述病床 20包括用于患者平躺的 床板 21及床板驱动器 22， 所述床板 21在床板驱动器 22的驱动下可 水平或倾斜移动。 在病床 20的底面上还设有圓盘状的旋转底盘 14， 所述旋转底盘 14以旋转底盘 14的垂直中心线为中心， 带动病床 20 进行旋转。
PET监控部 231位于放射治疗部 10的背面、 MR监控部 241位 于放射治疗部 10的正面， 所述放射治疗部 10和病床 20位于 PET监 控部 231和 MR监控部 241之间。 所述 PET监控部 231和 MR监控 部 241分别为独立的设备， 通过独立的驱动装置进行驱动， 不受放射 治疗部 10的影响。
在本实施例的放射治疗设备中， 床板 21需要通过放射治疗部 10 的床板通道 15后才能到达 PET监控部 231的成像通道 32，这样床板
21的长度就需要加长，为了减少加长后的床板 21弹性变化对病床 20 精确控制的不利影响， 在 PET监控部 231及放射治疗部 10之间还设 有支撑床板 21的支架 40。
关于支架 40的具体结构特征可以参考图 4以及第一实施例中示 例 1的关于支架 40的详细描述， 在此不予赘述。
在这里 PET监控部 231和 MR监控部 241的位置可以互换。 相对于示例 6， 在这里将 MR监控部 241放置在离病床 20近的 位置，床板 21只要向前水平移动就能将患者送到放射治疗部 10的放 射范及 PET监控部 231 的成像通道 32 内， 向后水平移动就能将患 MR监控部 241的成像通道 32内， 相对于示例 6， 床板 21的单向驱 动距离变短， 所以床板 21不需要太长， 可以节省空间。 示例 9 (以下参考图 4、 图 15详细说明根据本发明的示例 9 ) 图 15为本发明的放射治疗设备的示例 9侧面示意图。如图 15所 示放射治疗设备包括放射治疗部 10、病床 20、 PET监控部 231及 MR 监控部 241， 详细内容可以参考示例 6关于放射治疗设备的说明。 以放射治疗部 10设有加速器 12和探测器 13的一侧为正面， 病 床 20位于放射治疗部 10的背面。 所述病床 20包括用于患者平躺的 床板 21及床板驱动器 22， 所述床板 21在床板驱动器 22的驱动下可 水平或倾斜移动。 在病床 20的底面上还设有圓盘状的旋转底盘 14， 所述旋转底盘 14以旋转底盘 14的垂直中心线为中心， 带动病床 20 进行旋转。
所述 PET监控部 231和 MR监控部 241位于放射治疗部 10的正 面、对患者 5身体中需要检查的部位形成图像。 所述 PET监控部 231 和 MR监控部 241分别为独立的设备，通过独立的驱动装置进行驱动， 不受放射治疗部 10的影响。
在本实施例的放射治疗设备中， 床板 21需要通过放射治疗部 10 的床板通道 15后才能到达 PET监控部 231的成像通道 32，这样床板
21的长度就需要加长，为了减少加长后的床板 21弹性变化对病床 20 精确控制的不利影响， 在 PET监控部 231及放射治疗部 10之间还设 有支撑床板 21的支架 40。 支架 40也可位于 PET监控部 231和 MR 监控部 241之间。
关于支架 40的具体结构特征可以参考图 4以及第一实施例中示 例 1的关于支架 40的详细描述， 在此不予赘述。
在这个实施例中 PET监控部 231和 MR监控部 241的位置可以 互换， 也可以一体形成。
相对于前几个示例 6-8，在这里 PET监控部 231和 MR监控部 241 与放射治疗部 10的加速器 12的距离明显缩短， 对于减少床板 21移 动过程中的驱动误差有利， 实现了精确治疗的目的。 示例 10 (以下参考图 4、 图 16详细说明根据本发明的示例 10 ) 图 16为本发明的放射治疗设备的示例 10侧面示意图。 如图 16 所示放射治疗设备包括放射治疗部 10、 病床 20、 PET监控部 231及 MR监控部 241，详细内容可以参考示例 6关于放射治疗设备的说明。 以放射治疗部 10设有加速器 12和探测器 13的一侧为正面， 病 床 20位于放射治疗部 10的正面， 所述病床 20包括用于患者平躺的 床板 21及床板驱动器 22， 所述床板 21在床板驱动器 22的驱动下可 水平或倾斜移动。
所述 PET监控部 231和 MR监控部 241位于病床 20与放射治疗 部 10之间， 对患者 5身体中需要检查的部位形成图像。 所述 PET监 控部 231和 MR监控部 241分别为独立的设备，通过独立的驱动装置 进行驱动， 不受放射治疗部 10的影响。
在本实施例的放射治疗设备中，床板 21需要通过 PET监控部 231 和 MR监控部 241的成像通道 32的床板通道 15后才能到达放射治疗 部 10的治疗区域， 这样床板 21的长度就需要加长， 为了减少加长后 的床板 21弹性变化对病床 20精确控制的不利影响， 在 PET监控部
231及放射治疗部 10之间还设有支撑床板 21的支架 40。 支架 40也 可位于 PET监控部 231和 MR监控部 241之间。
关于支架 40的具体结构特征可以参考图 4以及第一实施例中示 例 1的关于支架 40的详细描述， 在此不予赘述。
在这个实施例中 PET监控部 231和 MR监控部 241的位置可以 互换， 也可以一体形成。
相对于前几个示例 6-9，在这里 PET监控部 231和 MR监控部 241 靠近病床 20， 床板 21的移动线路符合先检查再治疗， 治疗后还需检 查治疗效果的治疗流程，提高整个治疗的效率。 而且 PET监控部 231 和 MR监控部 241与放射治疗部 10的加速器 12的距离明显缩短，对 于减少床板 21移动过程中的驱动误差有利，实现了精确治疗的目的。 本发明第四实施例通过将 PET显像技术和 MR扫描技术结合于 放疗设备中的方式， 有选择性的对需要治疗的患者的病区进行监控， 实现对病人的肿瘤治疗的精确同步影像定位，有效的提高了治疗精度 和效率。并且 MR监控部和放射治疗部为独立的设备，避免了 MR的 磁场对放射治疗的干 4尤。 第五实施例： 成像设备包括 PET监控部和 CT监控部 由于 CT扫描技术本身很难做到精确的癌症早期诊断， 本发明第 五实施例将正电子发射计算机断层显像 （ Positron Emission Tomography, 简称 PET )技术和 CT扫描技术结合于放疗设备中的方 式， 通过 PET与 CT监控部实时的对病患部位进行准确监控，有效的 提高放射治疗的精度。 如第一实施例所述， 在肿瘤化疗、放疗的早期， PET检查即可发 现肿瘤治疗是否已经起效， 并为确定下一步治疗方案提供帮助。 本发 明第五实施例正是利用上述 PET成像优点， 将 PET成像技术和 CT 成像技术结合于放疗设备的方式， 实现对早期癌症的准确监控， 有效 的提高了放射治疗的准确性和治疗效果。 与第四实施例类似的，根据成像设备（例如， PET与 CT监控部 ) 与放射治疗部的位置关系，本发明第五实施例也提供 5种不同的示例 来详细说明放射治疗设备。 需要了解的是， 如无特别说明， 本发明第 五实施例的 5种不同示例中的结构、特征和优点可以参考第四实施例 的 5种示例及其对应的图 10至图 16， 只是将其中的 MR监控部 241 替换为 CT监控部 241即可， 在此不再赘述。 本发明第五实施例通过将 PET显像技术和 CT扫描技术结合于放 疗设备中的方式， 有选择性的对需要治疗的患者的病区进行监控， 实 现对病人的肿瘤治疗的精确同步影像定位，有效的提高了治疗精度和 效率。 本发明还可以提供其他实施例， 例如将 MR扫描技术和 CT扫描 技术结合于放疗设备中的方式，有选择性的对需要治疗的患者的病区 进行监控， 具体实施方式可以参考前述实施例， 在此不予赘述。 虽然本发明披露如上， 但本发明并非限定于此。 任何本领域技术 人员， 在不脱离本发明的精神和范围内， 均可作各种更动与修改， 因 此本发明的保护范围应当以权利要求所限定的范围为准。

Claims

权 利 要 求
1. 一种放射治疗设备， 其特征在于包括： 放射治疗部； 用于支撑并 移动患者的病床； 及设置在病床的床板水平移动方向上的成像设备， 所述成像设备用于定位患者的病患部位， 其中， 所述成像设备包括使 床板通过的成像通道， 所述病床根据放射治疗或成像的需要， 可使床 板沿床板水平移动方向在放射治疗部与成像设备之间移动。
2. 如权利要求 1所述的放射治疗设备， 其特征在于， 所述成像设备 包括 PET监控部、 CT监控部、 MR监控部中的一种， 或者包括 PET 监控部和 CT监控部，或者包括 PET监控部和 MR监控部，或者所述 成像设备包括 CT监控部和 MR监控部。
3. 如权利要求 1所述的放射治疗设备， 其特征在于， 所述放射治疗 设备还包括用于支撑病床的支架。
4. 如权利要求 3所述的放射治疗设备， 其特征在于， 所述支架包括 支撑床板的升降杆， 以及对升降杆进行升降驱动的底框。
5. 如权利要求 4所述的放射治疗设备， 其特征在于， 所述升降杆为 上宽下窄的 "T" 字型升降杆。
6. 如权利要求 4或 5所述的放射治疗设备， 其特征在于， 所述升降 杆接触病床的上表面设有滑动轮。
7. 如权利要求 2所述的放射治疗设备， 其特征在于， 所述病床位于 放射治疗部的正面， 所述 PET监控部、 CT监控部、 MR监控部中的 一种位于放射治疗部的背面。
8. 如权利要求 2所述的放射治疗设备， 其特征在于， 所述 PET监控 部、 CT监控部、 MR监控部中的一种位于放射治疗部的正面， 病床 位于放射治疗部和该所述 PET监控部、 CT监控部、 MR监控部中的 一种之间。
9. 如权利要求 2所述的放射治疗设备， 其特征在于， 所述 PET监控 部、 CT监控部、 MR监控部中的一种位于放射治疗部的正面， 病床 位于放射治疗部的背面。
10.如权利要求 2所述的放射治疗设备， 其特征在于， 所述病床位于 放射治疗部的背面， 所述 PET监控部、 CT监控部、 MR监控部中的 一种位于放射治疗部和病床之间。
11.如权利要求 2所述的放射治疗设备， 其特征在于， 所述病床位于 放射治疗部的正面， 所述 PET监控部、 CT监控部、 MR监控部中的 一种位于放射治疗部和病床之间。
12.如权利要求 2所述的放射治疗设备， 其特征在于， 所述病床位于 放射治疗部的正面、 PET监控部和 MR监控部位于放射治疗部的背 面。
13.如权利要求 2所述的放射治疗设备， 其特征在于， 所述放射治疗 部和病床位于 PET监控部和 MR监控部之间。
14.如权利要求 2所述的放射治疗设备， 其特征在于， 所述 PET监控 部和 MR监控部位于放射治疗部的正面， 病床位于放射治疗部的背 面。
15.如权利要求 2所述的放射治疗设备， 其特征在于， 所述病床位于 放射治疗部的正面， PET监控部与 MR监控部位于放射治疗部和病床 之间。
16.如权利要求 12， 14和 15任一项所述的放射治疗设备， 其特征在 于， 所述 PET监控部和 MR监控部一体形成。
17.如权利要求 2所述的放射治疗设备， 其特征在于， 所述病床位于 放射治疗部的正面，所述 PET监控部和 CT监控部位于放射治疗部的 背面。
18.如权利要求 2所述的放射治疗设备， 其特征在于， 所述放射治疗 部和病床位于 PET监控部和 CT监控部之间。
19.如权利要求 2所述的放射治疗设备， 其特征在于， 所述 PET监控 部和 CT监控部位于放射治疗部的正面，病床位于放射治疗部的背面。
20.如权利要求 2所述的放射治疗设备， 其特征在于， 所述病床位于 放射治疗部的正面， PET监控部与 CT监控部位于放射治疗部和病床 之间。
21.如权利要求 17， 19和 20任一项所述的放射治疗设备， 其特征在 于， 所述 PET监控部和 CT监控部一体形成。
22.如权利要求 1所述的放射治疗设备， 其特征在于， 所述放射治疗 部包括使床板通过的床板通道， 所述病床根据放射治疗或成像的需
23.如权利要求 1所述的放射治疗设备， 其特征在于， 所述成像设备 包括驱动装置， 所述驱动装置独立于所述放射治疗部。
24.如权利要求 1所述的放射治疗设备， 其特征在于， 所述病床底面 包括带动病床旋转的旋转底盘。
25.如权利要求 1所述的放射治疗设备， 其特征在于， 所述放射治疗 部的底面包括带动放射治疗部进行旋转的旋转底盘。
26.如权利要求 2所述的放射治疗设备， 其特征在于， 所述 CT监控 部包括 CT监控器和 CT支架， CT监控器可倾斜的设置于 CT支架上。
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