CA2189019A1 - Positioning device and method for radiation treatment - Google Patents

Positioning device and method for radiation treatment

Info

Publication number
CA2189019A1
CA2189019A1 CA002189019A CA2189019A CA2189019A1 CA 2189019 A1 CA2189019 A1 CA 2189019A1 CA 002189019 A CA002189019 A CA 002189019A CA 2189019 A CA2189019 A CA 2189019A CA 2189019 A1 CA2189019 A1 CA 2189019A1
Authority
CA
Canada
Prior art keywords
focus volume
voxel
radiation
volume
dwell time
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.)
Granted
Application number
CA002189019A
Other languages
French (fr)
Other versions
CA2189019C (en
Inventor
Dan Leksell
Borje Nilsson
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.)
Elekta Instrument AB
Original Assignee
Dan Leksell
Borje Nilsson
Elekta Instrument Ab
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 Dan Leksell, Borje Nilsson, Elekta Instrument Ab filed Critical Dan Leksell
Publication of CA2189019A1 publication Critical patent/CA2189019A1/en
Application granted granted Critical
Publication of CA2189019C publication Critical patent/CA2189019C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like
    • A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body
    • A61B6/0421—Supports, e.g. tables or beds, for the body or parts of the body with immobilising means
    • 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
    • A61N5/103—Treatment planning systems
    • 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
    • A61N5/1077—Beam delivery systems
    • A61N5/1084—Beam delivery systems for delivering multiple intersecting beams at the same time, e.g. gamma knives
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K5/00—Irradiation devices
    • G21K5/10—Irradiation devices with provision for relative movement of beam source and object to be irradiated
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
    • A61B2090/101—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis for stereotaxic radiosurgery
    • 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
    • A61N5/1042—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy with spatial modulation of the radiation beam within the treatment head

Abstract

A radiotherapy appliance having controllable radiation beam(s) which converge on a focus volume wherein an object being irradiated can be movably positioned relative to the focus volume for varying time periods and with varying radiation exposure rates, optimally under control of a computer. The computer controls the focus volume radiation beam size, intensity and exposure time for subareas of the treatment target in response to a radiation dose distribution determined for the treatment target. A determination of the radiation beam size, intensity and dwell time of the focus volume in the target area, is made by initially dividing up the specified treatment area into volume elements or voxels and having biological characteristics of the treatment area assigned to each voxel. The energy deposition incident to each voxel to provide this biological characteristic is then calculated. Finally, from the energy deposition incident on each voxel, the dwell time of the focus volume at particular voxels can be determined. Once the dwell time has been determined, the computer generates a sequence of motor control movements to move the patient with respect to the focus volume such that the focus volume is at a position sufficiently long within the treatment target to deliver the necessary radiation for each voxel.
CA002189019A 1994-06-09 1995-06-09 Positioning device and method for radiation treatment Expired - Lifetime CA2189019C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/255,667 1994-06-09
US08/255,667 US5528651A (en) 1994-06-09 1994-06-09 Positioning device and method for radiation treatment
PCT/SE1995/000695 WO1995033519A1 (en) 1994-06-09 1995-06-09 Positioning device and method for radiation treatment

Publications (2)

Publication Number Publication Date
CA2189019A1 true CA2189019A1 (en) 1995-12-14
CA2189019C CA2189019C (en) 2004-01-27

Family

ID=22969367

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002189019A Expired - Lifetime CA2189019C (en) 1994-06-09 1995-06-09 Positioning device and method for radiation treatment

Country Status (9)

Country Link
US (4) US5528651A (en)
EP (1) EP0764040B1 (en)
JP (1) JPH10501151A (en)
CN (1) CN1047734C (en)
AT (1) ATE287751T1 (en)
CA (1) CA2189019C (en)
DE (1) DE69533958T2 (en)
ES (1) ES2232824T3 (en)
WO (1) WO1995033519A1 (en)

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Also Published As

Publication number Publication date
JPH10501151A (en) 1998-02-03
EP0764040B1 (en) 2005-01-26
DE69533958T2 (en) 2005-06-30
US5805661A (en) 1998-09-08
US5528651A (en) 1996-06-18
CN1149260A (en) 1997-05-07
CA2189019C (en) 2004-01-27
WO1995033519A1 (en) 1995-12-14
ATE287751T1 (en) 2005-02-15
US6049587A (en) 2000-04-11
EP0764040A1 (en) 1997-03-26
US5629967A (en) 1997-05-13
CN1047734C (en) 1999-12-29
ES2232824T3 (en) 2005-06-01
DE69533958D1 (en) 2005-03-03

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