WO2004096047A2 - Fantome pour le controle qualite d'un systeme de simulation virtuelle d'un traitement de radiotherapie - Google Patents
Fantome pour le controle qualite d'un systeme de simulation virtuelle d'un traitement de radiotherapie Download PDFInfo
- Publication number
- WO2004096047A2 WO2004096047A2 PCT/FR2004/000987 FR2004000987W WO2004096047A2 WO 2004096047 A2 WO2004096047 A2 WO 2004096047A2 FR 2004000987 W FR2004000987 W FR 2004000987W WO 2004096047 A2 WO2004096047 A2 WO 2004096047A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- densities
- core
- elements
- phantom
- quality control
- Prior art date
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
-
- 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
- A61B6/58—Testing, adjusting or calibrating apparatus or devices for radiation diagnosis
- A61B6/582—Calibration
- A61B6/583—Calibration using calibration phantoms
-
- 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
- A61N5/1075—Monitoring, verifying, controlling systems and methods for testing, calibrating, or quality assurance of the radiation treatment apparatus
- A61N2005/1076—Monitoring, verifying, controlling systems and methods for testing, calibrating, or quality assurance of the radiation treatment apparatus using a dummy object placed in the radiation field, e.g. phantom
Definitions
- the present invention relates to the field of radiotherapy. More specifically, it relates to a device of the type known as a "ghost" used for the preparation of the apparatus during virtual simulation operations preparing the execution of a radiotherapy treatment by means of a scanner or similar.
- a device of the type known as a "ghost" used for the preparation of the apparatus during virtual simulation operations preparing the execution of a radiotherapy treatment by means of a scanner or similar.
- the treatment of tumors by radiotherapy is now possible using devices which include a medical imaging device such as a scanner, coupled to a radiation emitting device used for the treatment of the patient.
- a medical imaging device such as a scanner
- a radiation emitting device used for the treatment of the patient.
- the preparation of these devices, before the effective realization of the irradiation of the patient comprises a step called “virtual simulation”.
- This term refers to a set of software that allows the user to define or calculate what is called the “treatment isocenter", that is the point area where the radiation must converge before destroy the tumor and then simulate the treatment to be performed using reconstructed X-rays.
- Two software components are used during the virtual simulation phase: software that defines the contours of the tumor to be treated and, secondly, the organisms that it is important not to reach during the emission. radiation;
- the device providing the virtual simulation proposes all the movements of a particle accelerator using the parameterized software. But classically, the relevance of the data provided by these software can be controlled only during a simulation performed in the presence of the patient, which is binding for the latter. It is therefore desirable to have a tool which makes it possible to carry out a control of the relevance of the operation of the virtual simulation software outside the presence of the patient.
- ghosts For the calibration of scanners, devices called "ghosts". They are constituted by a volume of known dimensions of a material (water, polystyrene of various densities, plexiglass) behaving essentially in the same way as the human tissue which is concerned by the examination, from the point of view of the absorption and scattering of the radiation used. These known phantoms are not adapted to the realization of a virtual simulation as we have just defined it.
- the aim of the invention is to propose a phantom for testing all the virtual simulation functions of a radiotherapy system using an imaging device such as a scanner, during a minimum number of minutes. operations.
- the subject of the invention is a phantom for the quality control of a virtual simulation system of a radiotherapy treatment comprising a medical imaging device, characterized in that it comprises: a support box,
- a core disposed in said support box and constituted by a plurality of elements of different shapes, dimensions and densities, said densities simulating the densities of various organs and environments of the human body, two of these elements being constituted by two truncated pyramids of different densities nested one inside the other, at least one of them not having a total symmetry with respect to its longitudinal axis,
- the phantom is of cubic general shape.
- one of the beads is placed in the center of the core.
- the phantom has six removable lateral faces enclosing metal wires defining geometrical figures.
- the phantom according to the invention is composed in the first place of a support box, preferably of cubic form.
- a support box preferably of cubic form.
- On this support box are mounted at least two plates on which is embodied a geometrical figure using metal wires which are drowned, placed opposite each other on the support box. These two plates are used to verify that the divergence of the reconstructed image is correct.
- all the faces of the support box include such plates, so that it is possible to perform a maximum of divergence tests during a single operation.
- the box is lined internally by volumes with remarkable geometric shapes and different densities, to simulate the densities of various organs (such as breast, muscle, bone, lungs filled with air).
- One of these volumes in particular, consists of interlocking pyramid trunks.
- FIG. 1 shows in perspective an example of a support box for a phantom according to the invention and the side faces associated therewith;
- the support casing 1 shown in FIG. 1 is constituted by the assembly of two elements which, in the example shown, constitute a cube of 19 cm side.
- the first element 2 is an open box on its upper face, whose base is a square of 19 cm side and whose side faces have a height of 18 cm.
- the second element 3 is a 19 cm square and 1 cm thick square plate which is disposed at the upper part of the box 1 so as to form a cover for the first element 2.
- These two elements 2, 3 are a material such as impact polystyrene (density 1.05), but could also be polymethylmethacrylate (PMMA) for example.
- PMMA polymethylmethacrylate
- the support box 2 is intended to enclose a core 4, an example of which is shown in FIG. 2.
- This core 4 is constituted by a cubic assembly 17 cm apart, composed of elements some of which possess remarkable geometric properties, and presenting various densities representative of the densities of the various organs and media of the human body that the radiation of the radiotherapy device are likely to cross.
- these elements are four cubes 5, 6, 7, 8 of 3.5 cm side each occupying a vertex of the core 4. Two of these cubes 5, 6 are placed on two diagonally opposite vertices. These cubes 5, 6, 7, 8 are all of different densities.
- cube 5 has a density of 0.991 simulating that of the breast
- cube 6 has a density of 1.609 simulating that of bone
- cube 7 has a density of 1.062 simulating that of muscle
- cube 8 has a density of 0.465 simulating that of the exhaled lung
- non-radiolucent material such as steel 9, 10 for simulating treatment isocenters. Steel is chosen in preference to other materials because it is clearly visible in the images rebuilt and does not cause too many artifacts on this image.
- These two elements 11, 12 have different densities.
- the assembly formed by these two elements 11, 12 is intended to form the central part of the core 4. It has a length "L" of 13.5 cm, therefore less than the length of an edge of the core 4 that it do not cross right through.
- a steel ball 13 simulating a treatment isocenter is chosen to that the ball 13 is exactly in the center of the cube formed by the assembled core 4.
- the remaining 17 of the cubic core 4, in which are placed the various elements 5, 6, 7, 8, 11, 12, 14, 15, 16, is constituted by a polystyrene body.
- the casing 1 is coated on its six faces by plates 18, 19, 20, 21, 22, 23 square 20 cm side and 0.5 cm thick which are fixed removably by screws 1 cm in length in a material that is diotransparent such as nylon.
- These plates 18-23 are made of Plexiglas, and they include, embedded in their mass, son of a metal such as copper which draw geometric figures such as those shown in Figure 1.
- Each of these figures can be dedicated to the verification of one or more particular functions of the software, in view of the way in which the software has restored their form.
- the fact of having six such removable plates 18-23 is advantageous in that it makes it possible to test a maximum of anointings during a single test. It would remain in the spirit of the invention to provide a lower number of removable plates.
- a minimum of two plates 18-23 disposed on two opposite faces of the core 4 is necessary to verify that the divergence of the reconstructed image is correct. For this purpose patterns forming circles as shown on the plates 18, 21 of Figure 1 are particularly indicated.
- the ghost just described and represented is only an example; In particular, it would remain in the spirit of the invention to give it a shape other than cubic.
- the cube has the advantage of great ease of handling and interchangeability of the plates 18-23 constituting its outer faces.
- the shapes and dimensions of the elements forming the core 4 may be different from those which have been described. However, the presence of elements nested in pyramid trunks 11, 12 of different densities is indispensable. This allows to check:
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/553,781 US7397024B2 (en) | 2003-04-23 | 2004-04-22 | Phantom for the quality control of a radiotherapy treatment virtual simulation system |
DK04742562T DK1615560T3 (da) | 2003-04-23 | 2004-04-22 | Fantom til kvalitetskontrol af et system til virtuel simulering af en stråleterapeutisk behandling |
EP04742562A EP1615560B1 (fr) | 2003-04-23 | 2004-04-22 | Fantome pour le controle qualite d'un systeme de simulation virtuelle d'un traitement de radiotherapie |
DE602004006736T DE602004006736T2 (de) | 2003-04-23 | 2004-04-22 | Phantom für die qualitätskontrolle eines systems zur virtuellen simulation einer radiotherapeutischen behandlung |
PL04742562T PL1615560T3 (pl) | 2003-04-23 | 2004-04-22 | Fantom do kontroli jakości systemu symulacji wirtualnej do radioterapii |
CA2523215A CA2523215C (fr) | 2003-04-23 | 2004-04-22 | Fantome pour le controle qualite d'un systeme de simulation virtuelle d'un traitement de radiotherapie |
SI200430409T SI1615560T1 (sl) | 2003-04-23 | 2004-04-22 | Fantom za kontrolo kakovosti sistema za virtualnosimulacijo zdravljenja z radioterapijo |
CY20071101125T CY1106832T1 (el) | 2003-04-23 | 2007-08-28 | Ομοιωμα για τον ελεγχο ποιοτητας ενος συστηματος εικονικης προσομοιωσης μιας θεραπειας με χρηση ακτινοβολιας |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0304987A FR2854050B1 (fr) | 2003-04-23 | 2003-04-23 | Fantome pour le controle qualite d'un systeme de simulation virtuelle d'un traitement de radiotherapie |
FR0304987 | 2003-04-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004096047A2 true WO2004096047A2 (fr) | 2004-11-11 |
WO2004096047A3 WO2004096047A3 (fr) | 2005-01-06 |
Family
ID=33104340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2004/000987 WO2004096047A2 (fr) | 2003-04-23 | 2004-04-22 | Fantome pour le controle qualite d'un systeme de simulation virtuelle d'un traitement de radiotherapie |
Country Status (13)
Country | Link |
---|---|
US (1) | US7397024B2 (fr) |
EP (1) | EP1615560B1 (fr) |
AT (1) | ATE363230T1 (fr) |
CA (1) | CA2523215C (fr) |
CY (1) | CY1106832T1 (fr) |
DE (1) | DE602004006736T2 (fr) |
DK (1) | DK1615560T3 (fr) |
ES (1) | ES2288260T3 (fr) |
FR (1) | FR2854050B1 (fr) |
PL (1) | PL1615560T3 (fr) |
PT (1) | PT1615560E (fr) |
SI (1) | SI1615560T1 (fr) |
WO (1) | WO2004096047A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007081662A2 (fr) * | 2006-01-05 | 2007-07-19 | Koninklijke Philips Electronics, N.V. | Fantôme réglable |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7356120B2 (en) * | 2005-09-23 | 2008-04-08 | Accuray Incorporated | Integrated quality assurance for in image guided radiation treatment delivery system |
US7594753B2 (en) | 2007-03-29 | 2009-09-29 | Accuray Incorporated | Phantom insert for quality assurance |
GB0712682D0 (en) * | 2007-06-29 | 2007-08-08 | King S College Hospital Nhs Fo | Phantom for imaging apparatuses |
US7967507B2 (en) * | 2008-03-14 | 2011-06-28 | The United States of America as represented by the Secretary of Commerce, NIST | Dimensional reference for tomography |
WO2016049589A1 (fr) * | 2014-09-26 | 2016-03-31 | Battelle Memorial Institute | Article de test de qualité d'image |
WO2016049585A1 (fr) | 2014-09-26 | 2016-03-31 | Battelle Memorial Institute | Ensemble article de test de qualité d'image |
CZ306069B6 (cs) * | 2015-10-06 | 2016-07-20 | Fakultní nemocnice Ostrava | Mechanický fantom simulace pohybu ozařovaného ložiska tumoru |
CN107753050B (zh) * | 2017-10-27 | 2021-12-24 | 厦门市领汇医疗科技有限公司 | 一种用于测试cbs-ct机性能和图像质量的综合模体 |
WO2023003994A1 (fr) * | 2021-07-22 | 2023-01-26 | The University Of Toledo | Dispositif fantôme solide pour balayage de faisceau |
CN116359257A (zh) * | 2021-12-27 | 2023-06-30 | 同方威视技术股份有限公司 | 标定组件、标定模体及标定方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US4055771A (en) * | 1976-10-26 | 1977-10-25 | Alderson Research Laboratories, Inc. | Test body for a scanning tomographic analytical apparatus |
US5416816A (en) * | 1994-01-27 | 1995-05-16 | Boston Test Tool Company | Calibration template for computed radiography |
DE19819928A1 (de) * | 1998-05-05 | 1999-11-11 | Philips Patentverwaltung | Verfahren für ein Schichtbilder erzeugendes Abbildungssystem |
US6409515B1 (en) * | 1999-08-03 | 2002-06-25 | General Electric Company | Imaging system phantom |
Family Cites Families (10)
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JPS5594241A (en) * | 1979-01-11 | 1980-07-17 | Hitachi Medical Corp | Xxray transverse layer device |
US4646334A (en) * | 1982-11-30 | 1987-02-24 | Zerhouni Elias A | Radiographic test phantom for computed tomographic lung nodule analysis |
US4613754A (en) * | 1983-12-29 | 1986-09-23 | Shell Oil Company | Tomographic calibration apparatus |
US4985906A (en) * | 1987-02-17 | 1991-01-15 | Arnold Ben A | Calibration phantom for computer tomography system |
US4873707A (en) * | 1987-09-11 | 1989-10-10 | Brigham & Women's Hospital | X-ray tomography phantoms, method and system |
US6231231B1 (en) * | 1999-06-24 | 2001-05-15 | General Electric Company | Modular interchangeable phantoms for multiple x-ray systems |
US6674834B1 (en) * | 2000-03-31 | 2004-01-06 | Ge Medical Systems Global Technology Company, Llc | Phantom and method for evaluating calcium scoring |
US6697451B2 (en) * | 2001-09-05 | 2004-02-24 | Ge Medical Systems Global Technology Company, Llc | Dynamic phantom and method for evaluating calcium scoring |
US7127096B2 (en) * | 2001-11-20 | 2006-10-24 | Accuimage Diagnostics Corp. | Method and software for improving coronary calcium scoring consistency |
US7387439B2 (en) * | 2006-02-15 | 2008-06-17 | Carestream Health, Inc. | X-ray beam calibration for bone mineral density assessment using mammography system |
-
2003
- 2003-04-23 FR FR0304987A patent/FR2854050B1/fr not_active Expired - Fee Related
-
2004
- 2004-04-22 CA CA2523215A patent/CA2523215C/fr not_active Expired - Lifetime
- 2004-04-22 DK DK04742562T patent/DK1615560T3/da active
- 2004-04-22 DE DE602004006736T patent/DE602004006736T2/de not_active Expired - Lifetime
- 2004-04-22 SI SI200430409T patent/SI1615560T1/sl unknown
- 2004-04-22 US US10/553,781 patent/US7397024B2/en not_active Expired - Fee Related
- 2004-04-22 PT PT04742562T patent/PT1615560E/pt unknown
- 2004-04-22 AT AT04742562T patent/ATE363230T1/de not_active IP Right Cessation
- 2004-04-22 WO PCT/FR2004/000987 patent/WO2004096047A2/fr active IP Right Grant
- 2004-04-22 ES ES04742562T patent/ES2288260T3/es not_active Expired - Lifetime
- 2004-04-22 EP EP04742562A patent/EP1615560B1/fr not_active Expired - Lifetime
- 2004-04-22 PL PL04742562T patent/PL1615560T3/pl unknown
-
2007
- 2007-08-28 CY CY20071101125T patent/CY1106832T1/el unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4055771A (en) * | 1976-10-26 | 1977-10-25 | Alderson Research Laboratories, Inc. | Test body for a scanning tomographic analytical apparatus |
US5416816A (en) * | 1994-01-27 | 1995-05-16 | Boston Test Tool Company | Calibration template for computed radiography |
DE19819928A1 (de) * | 1998-05-05 | 1999-11-11 | Philips Patentverwaltung | Verfahren für ein Schichtbilder erzeugendes Abbildungssystem |
US6409515B1 (en) * | 1999-08-03 | 2002-06-25 | General Electric Company | Imaging system phantom |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007081662A2 (fr) * | 2006-01-05 | 2007-07-19 | Koninklijke Philips Electronics, N.V. | Fantôme réglable |
WO2007081662A3 (fr) * | 2006-01-05 | 2008-02-07 | Koninkl Philips Electronics Nv | Fantôme réglable |
US7738624B2 (en) | 2006-01-05 | 2010-06-15 | Koninklijke Philips Electronics N.V. | Adjustable phantom |
Also Published As
Publication number | Publication date |
---|---|
WO2004096047A3 (fr) | 2005-01-06 |
US20060239414A1 (en) | 2006-10-26 |
PL1615560T3 (pl) | 2007-10-31 |
ATE363230T1 (de) | 2007-06-15 |
FR2854050A1 (fr) | 2004-10-29 |
US7397024B2 (en) | 2008-07-08 |
EP1615560B1 (fr) | 2007-05-30 |
DE602004006736D1 (de) | 2007-07-12 |
SI1615560T1 (sl) | 2007-10-31 |
DE602004006736T2 (de) | 2008-01-31 |
EP1615560A2 (fr) | 2006-01-18 |
CY1106832T1 (el) | 2012-05-23 |
FR2854050B1 (fr) | 2005-07-22 |
CA2523215A1 (fr) | 2004-11-11 |
DK1615560T3 (da) | 2007-10-01 |
ES2288260T3 (es) | 2008-01-01 |
CA2523215C (fr) | 2011-09-06 |
PT1615560E (pt) | 2007-09-05 |
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