GB2340716A - Patient position monitoring system - Google Patents

Patient position monitoring system Download PDF

Info

Publication number
GB2340716A
GB2340716A GB9817371A GB9817371A GB2340716A GB 2340716 A GB2340716 A GB 2340716A GB 9817371 A GB9817371 A GB 9817371A GB 9817371 A GB9817371 A GB 9817371A GB 2340716 A GB2340716 A GB 2340716A
Authority
GB
United Kingdom
Prior art keywords
patient
position information
monitoring system
information
position monitoring
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.)
Withdrawn
Application number
GB9817371A
Other versions
GB9817371D0 (en
Inventor
Nicholas Collett
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9817371A priority Critical patent/GB2340716A/en
Publication of GB9817371D0 publication Critical patent/GB9817371D0/en
Publication of GB2340716A publication Critical patent/GB2340716A/en
Withdrawn legal-status Critical Current

Links

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
    • A61B6/08—Auxiliary means for directing the radiation beam to a particular spot, e.g. using light beams
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/113—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb occurring during breathing
    • 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
    • A61B6/54—Control of apparatus or devices for radiation diagnosis
    • A61B6/541—Control of apparatus or devices for radiation diagnosis involving acquisition triggered by a physiological signal
    • 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
    • A61N2005/1059—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam using cameras imaging the patient
    • 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
    • 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
    • A61N5/1065—Beam adjustment
    • A61N5/1067—Beam adjustment in real time, i.e. during treatment

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

A set of flat coloured discs are attached to the patient. These are imaged via cameras and the XYZ position of each disc is defined in virtual space by triangulation. This information is recorded and used to position the patient accurately. In addition the position information of the patient is monitored and recorded during Radiotherapy treatment. The discs may also be used to give positional information about the position of a body surface, i.e. during breathing or respiration.

Description

2340716 Title: Patient Position Monitoring System
Background:
Radiotherapy applies a calculated amount of electron energy to tumours. In order to achieve this patients have to be aligned correctly in positions that can be accurately reproduced when required. As living beings patients have a tendency to move, and unless this is detected, the wrong areas are irradiated. Currently this is achieved by immobilising the patient with various physical restraints, however once positioned and physically checked the operator assumes that there will be no further movement.
Description:
The Patient Position Monitoring System monitors the position of marks or tattoos applied to the patient to assist with the alignment. This is carried out continuously in a non-contact method.
Highly coloured spots are stuck to the patient on top of the patient tattooed marks. llhe area to be monitored is a cube of space.
Two or more cameras are mounted on the room walls or the simulator to provide coverage of the required spots. The camera field of view is adjusted to such that the width of the field of view is approximately the width of the cube of interest. By calibration the angle of position of the spot can be calculated.
In order to recognise the coloured spot and its position the image from all cameras is digitally frame grabbed and converted to hue and saturation. The pixels are filtered to accept only those with the correct hue. The result is integrated to provide a precise point of x and y coordinates. These x and y co-ordinates correspond to an angle offset from the direction the camera is pointing. By combining these angles from a combination of cameras a precise position in space can be defined.
By recording the original patient set-up the Patient Position Monitoring System can constantly check whether there has been any significant movement.
The system will also allow monitoring of breathing movement and could be used to synchronise radiation bursts to provide a more accurate dose field.
Applications also include use in Diagnostic irnaging such as image fusion and subtraction.
z

Claims (7)

Claims
1. A Patient Position Monitoring System comprising flat coloured discs on the patient surface to provide virtual space position information of a point(s) using electronic imaging.
2. Recording and electronic comparison of position information of claim 1 to align patient from previous position information.
3. Recording and electronic comparison of position information of claim 1 where information is obtained from another system as in claim 1 situated in another room.
4. Continuous position information acquisition to provide position information as in claim 1 to provide output to other systems.
5. Continuous position information obtained as in claim 1 to monitor patient movement during treatment or tests.
6. Use of coloured discs attached to the patient to provide reference points for position information.
7. Position information is on three sides of the patient.
m
GB9817371A 1998-08-11 1998-08-11 Patient position monitoring system Withdrawn GB2340716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9817371A GB2340716A (en) 1998-08-11 1998-08-11 Patient position monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9817371A GB2340716A (en) 1998-08-11 1998-08-11 Patient position monitoring system

Publications (2)

Publication Number Publication Date
GB9817371D0 GB9817371D0 (en) 1998-10-07
GB2340716A true GB2340716A (en) 2000-02-23

Family

ID=10836996

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9817371A Withdrawn GB2340716A (en) 1998-08-11 1998-08-11 Patient position monitoring system

Country Status (1)

Country Link
GB (1) GB2340716A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003011394A1 (en) * 2001-07-27 2003-02-13 Bhc Engineering, Lp Method and device for monitoring real-time position of an area targeted by a radiosurgery system
EP1342488A3 (en) * 2002-03-07 2004-02-04 Siemens Aktiengesellschaft Method and device for repeated relative repositioning of a patient
WO2005044378A1 (en) * 2003-11-08 2005-05-19 Medical Intelligence Medizintechnik Gmbh Patient identification system and patient positioning method
WO2006001768A1 (en) * 2004-06-29 2006-01-05 Elekta Ab (Publ) Collision detecting device and method
WO2006005021A2 (en) * 2004-06-30 2006-01-12 Accuray Incorporated Vest-based respiration monitoring system
WO2016138851A1 (en) * 2015-03-02 2016-09-09 Shanghai United Imaging Healthcare Co., Ltd. System and method for patient positioning cross reference to related applications
US11576578B2 (en) 2015-03-02 2023-02-14 Shanghai United Imaging Healthcare Co., Ltd. Systems and methods for scanning a patient in an imaging system
US11576645B2 (en) 2015-03-02 2023-02-14 Shanghai United Imaging Healthcare Co., Ltd. Systems and methods for scanning a patient in an imaging system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2287598A (en) * 1994-03-17 1995-09-20 Roke Manor Research Video-based systems for computer assisted surgery and location
EP0737439A2 (en) * 1995-04-08 1996-10-16 Dornier Medizintechnik GmbH Device for locating concretions in the body
WO1998004194A1 (en) * 1996-07-31 1998-02-05 University Of Pittsburgh Of The Commonwealth System Of Higher Education Apparatus for automatically positioning a patient for treatment/diagnoses
GB2317317A (en) * 1996-08-16 1998-03-18 Siemens Medical Systems Inc Identification of a patient for radiation treatment
WO1998011822A1 (en) * 1996-09-19 1998-03-26 University Of Pittsburgh Of The Commonwealth System Of Higher Education Apparatus responsive to movement of a patient during treatment/diagnosis
WO1998020795A1 (en) * 1996-11-13 1998-05-22 Glasgow Caledonian University Company Ltd. Medical imaging systems

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2287598A (en) * 1994-03-17 1995-09-20 Roke Manor Research Video-based systems for computer assisted surgery and location
EP0737439A2 (en) * 1995-04-08 1996-10-16 Dornier Medizintechnik GmbH Device for locating concretions in the body
WO1998004194A1 (en) * 1996-07-31 1998-02-05 University Of Pittsburgh Of The Commonwealth System Of Higher Education Apparatus for automatically positioning a patient for treatment/diagnoses
GB2317317A (en) * 1996-08-16 1998-03-18 Siemens Medical Systems Inc Identification of a patient for radiation treatment
WO1998011822A1 (en) * 1996-09-19 1998-03-26 University Of Pittsburgh Of The Commonwealth System Of Higher Education Apparatus responsive to movement of a patient during treatment/diagnosis
WO1998020795A1 (en) * 1996-11-13 1998-05-22 Glasgow Caledonian University Company Ltd. Medical imaging systems

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003011394A1 (en) * 2001-07-27 2003-02-13 Bhc Engineering, Lp Method and device for monitoring real-time position of an area targeted by a radiosurgery system
US7343189B2 (en) 2002-03-07 2008-03-11 Siemens Aktiengesellschaft Method and device for placing a patient repeatedly into the same relative position
EP1342488A3 (en) * 2002-03-07 2004-02-04 Siemens Aktiengesellschaft Method and device for repeated relative repositioning of a patient
WO2005044378A1 (en) * 2003-11-08 2005-05-19 Medical Intelligence Medizintechnik Gmbh Patient identification system and patient positioning method
WO2006001768A1 (en) * 2004-06-29 2006-01-05 Elekta Ab (Publ) Collision detecting device and method
US7492866B2 (en) 2004-06-29 2009-02-17 Elekta Ab (Publ) Collision detecting device and method
AU2005257724B2 (en) * 2004-06-29 2010-06-03 Elekta Ab (Publ) Collision detecting device and method
CN101022851B (en) * 2004-06-29 2010-06-16 伊莱克塔公司 Collision detecting device and method
WO2006005021A3 (en) * 2004-06-30 2006-04-06 Accuray Inc Vest-based respiration monitoring system
WO2006005021A2 (en) * 2004-06-30 2006-01-12 Accuray Incorporated Vest-based respiration monitoring system
WO2016138851A1 (en) * 2015-03-02 2016-09-09 Shanghai United Imaging Healthcare Co., Ltd. System and method for patient positioning cross reference to related applications
US11020022B2 (en) 2015-03-02 2021-06-01 Shanghai United Imaging Healthcare Co., Ltd. System and method for patient positioning during a medical imaging procedure
US11253171B2 (en) 2015-03-02 2022-02-22 Shanghai United Imaging Healthcare Co., Ltd. System and method for patient positioning
US11576578B2 (en) 2015-03-02 2023-02-14 Shanghai United Imaging Healthcare Co., Ltd. Systems and methods for scanning a patient in an imaging system
US11576645B2 (en) 2015-03-02 2023-02-14 Shanghai United Imaging Healthcare Co., Ltd. Systems and methods for scanning a patient in an imaging system

Also Published As

Publication number Publication date
GB9817371D0 (en) 1998-10-07

Similar Documents

Publication Publication Date Title
Murphy et al. Image-guided radiosurgery for the spine and pancreas
Schweikard et al. Respiration tracking in radiosurgery
US6702459B2 (en) Mobile radiography system and process
US6865253B2 (en) Method and device for accurately positioning a patient in radiotherapy and/or radiosurgery
EP1123059B1 (en) System for positioning patients
US6144875A (en) Apparatus and method for compensating for respiratory and patient motion during treatment
US7349730B2 (en) Radiation modulator positioner
CA2213069C (en) Identification system and method for radiation therapy
US7318805B2 (en) Apparatus and method for compensating for respiratory and patient motion during treatment
US8351573B2 (en) Device and method for positioning a target volume in a radiation therapy apparatus
Rogus et al. Accuracy of a photogrammetry‐based patient positioning and monitoring system for radiation therapy
US20040042583A1 (en) Patient positioning system for radiotherapy/radiosurgery based on stereoscopic X-ray unit
US9883818B2 (en) Fiducial localization
US20050027194A1 (en) Frameless radiosurgery treatment system and method
Chang et al. Accuracy and feasibility of cone‐beam computed tomography for stereotactic radiosurgery setup
EP2574373A1 (en) Radiotherapy system adapted to monitor a target location in real time
CA2416887A1 (en) Method and apparatus for lesion localization, definition and verification
Kim et al. Evaluation of intrafraction patient movement for CNS and head & neck IMRT
Wagner et al. Optical tracking technology in stereotactic radiation therapy
GB2340716A (en) Patient position monitoring system
JPH11197259A (en) Patient positioning device for use in therapy system
JP4159227B2 (en) Patient position deviation measuring device, patient positioning device using the same, and radiotherapy device
Spadea et al. Patient set-up verification by infrared optical localization and body surface sensing in breast radiation therapy
JP2001259059A (en) Lesion part tracking method and device, radiation method and device using the tracking method, and radiotherapy apparatus
US20040042582A1 (en) Method and apparatus for locating a medical target

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)