EP1794719A2 - Systeme d'imagerie destine a afficher une structure de configuration changeante au fil du temps - Google Patents
Systeme d'imagerie destine a afficher une structure de configuration changeante au fil du tempsInfo
- Publication number
- EP1794719A2 EP1794719A2 EP05776677A EP05776677A EP1794719A2 EP 1794719 A2 EP1794719 A2 EP 1794719A2 EP 05776677 A EP05776677 A EP 05776677A EP 05776677 A EP05776677 A EP 05776677A EP 1794719 A2 EP1794719 A2 EP 1794719A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- image
- configuration
- changing
- reference image
- rendering
- 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- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T13/00—Animation
- G06T13/20—3D [Three Dimensional] animation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T19/00—Manipulating 3D models or images for computer graphics
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2210/00—Indexing scheme for image generation or computer graphics
- G06T2210/41—Medical
Definitions
- the present invention relates to an imaging system for use in monitoring a structure having a configuration which changes with time, such as for example a functioning heart.
- LV Left Ventricle
- Imaging technology enables static volume (3D) images and dynamic volume (4D) images to be generated.
- Cardiac imaging systems such as Ultrasound, CT or MRI Imaging have been developed to image the LV during the cardiac cycle.
- a specific ultrasound imaging technique is disclosed in WO2004003851.
- the invention provides an imaging system for displaying image data representative of a structure of temporally changing configuration, the system comprising display rendering means for processing data representative of the changing configuration of the structure and rendering a display comprising a reference image of the structure in a predetermined configuration and superposing with the reference image a changing image of the structure which changes in configuration with respect to time.
- the system includes data acquisition means for acquiring the data representative of the structure configuration as it varies with time.
- the system may include ultrasound imaging apparatus for acquiring the data.
- the acquisition means preferably acquires 3D volume, data for processing.
- the invention provides a method of rendering image data representative of a structure of temporally changing configuration, the method comprising processing data representative of the changing configuration of the structure and rendering a display comprising a reference image of the structure in a predetermined configuration and superposing with the reference image a changing image of the structure which changes in configuration with respect to time.
- the reference image is preferably a static image of the structure, remaining static whilst the configuration of the changing image changes with respect to time.
- the system preferably comprises a 3D imaging system and the reference image and/or the changing image is beneficially a 3D rendered image.
- the temporally changing structure typically changes in configuration cyclically and the changing image beneficially represents the cyclically changing 3D volume of the structure.
- the reference image represents the maximum volume of the structure.
- the structure monitored may comprise the Left Ventricle (LV) of a heart, in which case the reference image is beneficially representative of the LV End Diastole (ED).
- LV Left Ventricle
- ED LV End Diastole
- the invention provides a method of imaging the Left Ventricle (LV) of a heart comprising rendering a display comprising a reference image of the LV in End Diastole and superposing with the reference image a changing image of the LV through the heart beating cycle.
- LV Left Ventricle
- the invention provides a computer program product comprising a set of instructions enabling performance of the method.
- - Figure 1 is a schematic flowchart representing operation of a system in accordance with the present invention
- - Figure 2 is an ultrasound image of the LV of a patient's heart showing the computer generated border
- Figure 3 shows a series of 3D mesh frames of the LV at different time periods within the cardiac cycle, superposed with the 3D ED mesh
- Figure 4 is a schematic representation of the data acquisition system.
- figure 1 shows a flowchart of steps taken in a technique according to the invention to generate a visualisation of the LV beat.
- the LV of a patient is initially monitored (block 100) using conventional monitoring techniques such as ultrasound imaging and or ECG, to ascertain the ED (end-diastole) phase (block 110) of the cardiac cycle.
- conventional monitoring techniques such as ultrasound imaging and or ECG, to ascertain the ED (end-diastole) phase (block 110) of the cardiac cycle.
- a 3D echocardiography system could be utilised.
- the system having means for acquiring a digital image sequence, and is associated to a digital processing system for processing the acquired 3D volume data.
- the examination system 550 shown in figure 4 comprises means for providing image data to the processing system which has at least one output 506 to provide image data to display and/or storage means 530,540.
- the display and storage means may respectively be the screen and memory of a workstation 510.
- the workstation 510 may also comprise a keyboard 531 and a mouse 532.
- the image processing system 520 may be a suitably programmed computer of a workstation 510, or a special purpose processor having circuit means such as filters, logic operators, memories that are arranged to perform the functions of the method steps according to the invention.
- the processing system 520 may use a computer program product having program instructions to be executed by the computing means of the processing system 520 in order to carry out the method steps.
- the 3D image data corresponding to the LV at the ED phase of the cardiac cycle is processed to generate a computed border 400 of the LV, as seen in figure 2.
- a computer algorithm then prompts a user to select a series of points (block 120) within the computer generated border and then uses the information to generate a 3D mesh (block 130) that completely covers the area of the image within the border and thus specifies the surface of the LV.
- This segmentation technique is related to the Finite Element Method, which is one of several standard mathematical techniques used in the analysis of image data). In this manner, a reference mesh is obtained for the ED phase of the LV during the cardiac cycle. If necessary the computer generated mesh can be modified at this stage (block 140).
- the ES (End-Systole) (block 200) phase of the LV is then ascertained in a similar manner with the border of the LV again being determined (block 210) and the corresponding mesh generated (block 230) through the user selecting a series of points (block 220). Again this mesh can be modified if necessary (block 240).
- the border of the LV is determined from a sequence of 3D images within the cardiac cycle at selected time intervals (block 300) from ED to ES (block 310), and the corresponding mesh is generated automatically (block 320), which if necessary can be modified (block 330).
- the system then renders an image display having a reference image of the structure in a preselected configuration (the ED phase of the LV), superposed with the changing image of the structure as it changes with respect to time.
- the 3D LV border can be displayed as a live beating object and when displayed within the ED reference mesh, clear departures can be seen between the current frame and the reference frame 500 during the cardiac cycle (figure 3). Furthermore, the superposition of meshes also highlights any global movement the LV may undertake during for example, respiration.
- Such visualisation images provide a collective account of the motion of the surface of the LV as it changes with respect to time and therefore, in contrast to the prior art in which only one frame time is shown, the visualisation illustrates the changes of the LV border over the whole heart cycle.
- MRI Magnetic Resonance Imaging
- CT Computed Tomography
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Graphics (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Image Processing (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US60580804P | 2004-08-31 | 2004-08-31 | |
PCT/IB2005/052803 WO2006025005A2 (fr) | 2004-08-31 | 2005-08-26 | Systeme d'imagerie destine a afficher une structure de configuration changeantus0530512 e au fil du temps |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1794719A2 true EP1794719A2 (fr) | 2007-06-13 |
Family
ID=35677551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05776677A Withdrawn EP1794719A2 (fr) | 2004-08-31 | 2005-08-26 | Systeme d'imagerie destine a afficher une structure de configuration changeante au fil du temps |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1794719A2 (fr) |
JP (1) | JP2008511368A (fr) |
WO (1) | WO2006025005A2 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006020864A1 (de) * | 2006-05-04 | 2007-11-08 | Siemens Ag | Verfahren zur Ermittlung und Anzeige von wenigstens einer Information über ein Zielvolumen |
JP5775823B2 (ja) * | 2009-01-13 | 2015-09-09 | コーニンクレッカ フィリップス エヌ ヴェ | 画像ベースの臨床試験評価 |
US9990735B2 (en) | 2012-04-04 | 2018-06-05 | Konica Minolta, Inc. | Image generation device that acquires images based on a periodic variation of an anatomical structure |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2545349B1 (fr) * | 1983-05-04 | 1986-09-26 | Duret Francois | Procede de saisie de la forme d'organes humains ou d'anomalies pathologiques et dispositif pour sa mise en oeuvre |
JP3713329B2 (ja) * | 1996-06-04 | 2005-11-09 | 株式会社東芝 | 超音波ドプラ診断装置 |
JPH11290325A (ja) * | 1998-04-09 | 1999-10-26 | Hitachi Medical Corp | 超音波診断装置 |
JP4763883B2 (ja) * | 2000-09-18 | 2011-08-31 | 株式会社東芝 | 超音波診断装置 |
EP1527422B1 (fr) | 2002-06-28 | 2019-05-22 | Koninklijke Philips N.V. | Procede de traitement d'images pour afficher des informations relatives aux mouvements des parois d'un objet 3-d deformable |
JP4041391B2 (ja) * | 2002-12-19 | 2008-01-30 | アロカ株式会社 | 超音波診断装置 |
-
2005
- 2005-08-26 JP JP2007529103A patent/JP2008511368A/ja active Pending
- 2005-08-26 WO PCT/IB2005/052803 patent/WO2006025005A2/fr active Application Filing
- 2005-08-26 EP EP05776677A patent/EP1794719A2/fr not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2006025005A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2006025005A2 (fr) | 2006-03-09 |
JP2008511368A (ja) | 2008-04-17 |
WO2006025005A3 (fr) | 2006-05-11 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20070402 |
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AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
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17Q | First examination report despatched |
Effective date: 20070730 |
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DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: KONINKLIJKE PHILIPS N.V. |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: G06T 19/00 20110101AFI20190123BHEP |
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GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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INTG | Intention to grant announced |
Effective date: 20190402 |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: DOLIMIER, DAMIEN Inventor name: ZHENG, CHUAN Inventor name: ALLAIN, PASCAL Inventor name: GERARD, OLIVIER |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20190813 |