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WO2008047266A2 - Procédé permettant d'exécuter l'analyse automatisée des vaisseaux côté table dans un bloc opératoire - Google Patents

Procédé permettant d'exécuter l'analyse automatisée des vaisseaux côté table dans un bloc opératoire Download PDF

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Publication number
WO2008047266A2
WO2008047266A2 PCT/IB2007/054110 IB2007054110W WO2008047266A2 WO 2008047266 A2 WO2008047266 A2 WO 2008047266A2 IB 2007054110 W IB2007054110 W IB 2007054110W WO 2008047266 A2 WO2008047266 A2 WO 2008047266A2
Authority
WO
WIPO (PCT)
Prior art keywords
vessel
screen
server
client
section
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/IB2007/054110
Other languages
English (en)
Other versions
WO2008047266A3 (fr
Inventor
Daniel Simon Anna Ruijters
Wiet Ging Hoei Lie
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Priority to EP07826695A priority Critical patent/EP2073707A2/fr
Publication of WO2008047266A2 publication Critical patent/WO2008047266A2/fr
Publication of WO2008047266A3 publication Critical patent/WO2008047266A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/504—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of blood vessels, e.g. by angiography
    • 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
    • A61B6/46—Arrangements for interfacing with the operator or the patient
    • A61B6/461—Displaying means of special interest
    • A61B6/465—Displaying means of special interest adapted to display user selection data, e.g. graphical user interface, icons or menus
    • 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
    • A61B6/46—Arrangements for interfacing with the operator or the patient
    • A61B6/467—Arrangements for interfacing with the operator or the patient characterised by special input means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/11—Region-based segmentation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10116—X-ray image
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30004—Biomedical image processing
    • G06T2207/30101—Blood vessel; Artery; Vein; Vascular

Definitions

  • the present invention relates to the field of interventional angio procedures.
  • the present invention relates to a method of performing tableside Automatic Vessel Analysis (AVA) in an Operation Room (OR).
  • AVA tableside Automatic Vessel Analysis
  • Interventional angio procedures such as X-ray angio procedures, are based on the real time 2D minimally invasive image guidance of endovascular material through the vessels of an object, e.g. the human vessels.
  • the well known imaging modality of choice for the interactive tracking of the guide wires and catheters is an X- ray angio machine.
  • 3D Rotational Angiography 3D-RA
  • 3D-RA 3D Rotational Angiography
  • a Table Side Module as a touch screen device enables the clinician to perform simple operations on an available volume of 3D-RA data, such as rotate, zoom in and out, store view etc.
  • the US 2006/0020915 Al describes a system and a method for improved surgical workflow development which enables to create and to edit a modifiable module used to direct a medical procedure through a sequence of images and functions included in the module.
  • the module may be stored on a server or may be loaded onto a touch- screen display allowing the surgeon to touch the screen with his hand or a stylus to interact with or modify the module.
  • CA 2 356 367 Al describes a wireless handheld device screen-capture printing technology.
  • a software on the device may gathers the screen- capture information locally when requested to do so by the device operator and transmits it, with routing information, via a communication network to a wireless server that formats and routes it to the specified destination device.
  • AVA allows the clinician to select a vessel segment, which is analyzed.
  • the result of this analysis is a cross sectional view of the vessel, at a user-defined location, showing vessel shape related data, such as the minimum and maximum diameter and area of a fitted ellipse at that location. Furthermore, a graph, illustrating the diameter of the vessel along its path, may be shown.
  • the graph may also indicate the maximum stenosis, percentage of the occlusion, etc. This tool is very valuable to the clinician, and is used frequently, because it allows him to assess a stenosis in the vessel, and helps him to select a stent length and diameter for the further operation.
  • the method enables the physician to use the Automated Vessel Analysis tool at the table side, in other words, to perform AVA in the Operation Room (OR) via placing probes through a touch-screen computer device.
  • the user touches the screen of the computer device step c, d of claim 1
  • coordinates are transferred to a storage of the same device or/and a second one, e.g. a server.
  • the server will position a probe with respect to a so called voxel volume.
  • the probe is a geometrical shape, fitted around a vessel at a given position.
  • the probe may consists of a sphere:
  • the radius of the sphere should be slightly greater than the radius of the explored vessel. Interactive selection of the correct radius is easy with a proper graphical user interface, when the 3D sphere is rendered together with a 3D triangle surface representation of the boundary of the vessels, created for example by a marching cubes algorithm.
  • the sphere should be positioned so that the vessel intersects the sphere, at least partially.
  • the orientation of the probe's plane, the local co-ordinate system of this plane and the position of the probe's sphere can be adjusted, based by using as origin the coordinates passed by the screen device, and as direction the viewing vector of the camera.
  • the first intersection of the line and the segmented vessels, will serve to position the first probe (Step c) of claim 1).
  • the vessel radius is estimated according to the position of the probe. Executing a vessel tracing function
  • the executing of the vessel tracing function is initialized by touching the screen. If the orientation of the plane of the probe is adjusted to the vessel (the probe is aligned), the direction of the normal is reversed if the new plane normal is opposite to the old plane normal. Next, u and v axis of the plane are chosen so that they are orthogonal to the new plane normal and orthogonal to each other and are as close as possible to the old u and v axes (if any). Consistent u and v axes are necessary for a smooth endoview of the vessel during vessel tracing. These u and v axes are also used for the adjustment of the sphere centre.
  • the proposed solution to use the method via a touch-screen may be characterised by the fact that it is easy to use. Together with the fact that it improves the workflow of the physician, it can be seen as an added value for 3D-RA. The availability of this function at the tableside may improve the workflow of the intervention considerably.
  • the proposed method is generally independent of the system architecture.
  • a preferred embodiment is a client-server system.
  • the system is based on the known interaction of a server, e.g. a workstation, which holds the 3D data, and performs the actual rendering of the data to images and a device called client, for example, a remote touch screen device, such as a Tablet PC or handheld device, which displays the images, and handles the user interaction.
  • client should be able to do some basic processing, but does not need to have the massive processing power of the workstation. It has a touch-screen and preferably can be, but is not necessarily wireless.
  • the server e.g. WLAN
  • the proposed method may take the limitations of the processing capabilities of the client and the bandwidth of the connection into account.
  • the method may comprise the following steps: A 3D-RA data set is acquired by the server. An image of vascular data is displayed on the screen of the client. The user selects a position of the first probe, by pressing the screen of the client, either using his hand, or a stylus pen. The probe is placed on the vessel in the voxel volume at the corresponding position. A cross-section of the vessel at the chosen position is displayed in the image. Then, the user selects a position of a second probe, by pressing the screen. Also this probe is placed on the vessel in the voxel volume at the corresponding position. A cross-section of the vessel at the chosen position may be displayed in the image.
  • the position of the probes can preferably be moved through the vessel by pressing up or down arrow signs, preferably located on the screen next to the cross-section. Finally, the user presses a sign like a "Trace button” that is displayed on the screen. Then, a graph may be shown by the screen, illustrating the diameter along the traced path.
  • the method comprises the steps of: construction of an image of a vessel tree out of a 3D Rotational
  • Angiography (3D-RA) data set of an object's volume by a server transferring the image of the vessel tree from the server to a client (touch screen device); displaying the image at a screen of the client; choosing a first vessel section of a vessel of the displayed vessel tree by touching the screen at a corresponding first location; transferring the coordinates of the first vessel section from the client to the server; extracting a first cross section through the vessel tree by the server, wherein the centre of the cross section corresponds to the centre of the first vessel section; transferring an image of the first cross section from the server to the client; displaying the image of the cross section at the screen of the client; choosing a second vessel section of the vessel of the displayed vessel tree by touching the screen at a corresponding second location; transferring the coordinates of the second vessel section from the client to the server; extracting a second cross section through the vessel tree by the server, wherein the centre of the cross section corresponds to the centre of the second vessel section; transferring an image of the second cross section from the server to the client
  • Fig. 1 to 4 show a front view at a computer device with different images on its touch-screen.
  • a rotational angiography run is transferred to a 3D-RA workstation, not shown here, and a voxel volume is reconstructed, as usual.
  • the user can rotate, translate and zoom the volume (using the mouse, the Table Side Module, or follow C-arm), as usual via the workstation.
  • the workstation will also perform a segmentation of vessels in the voxel volume, and build a vessel tree graph.
  • the 3D-RA workstation will act as server in this embodiment of the invention. Workflow step 2
  • the server When the user selects a Tableside AVA application, the server will transfer a present view of the 3D-RA volume to a computer device 1, shown in Fig. 1.
  • the client will then display the view as an image at a screen 2. This means that only a 2D image (the view on the volume) needs to be transferred.
  • the computer device 1 is now ready to receive the user input.
  • the computer device 1 is a remote touch screen device (e.g. a Tablet PC) and will act as a client.
  • Fig.l When the user touches the screen 2 of the client, shown in Fig.l, coordinates are transferred to the workstation that acts as a server.
  • the server will position a probe with respect to the voxel volume. This means that a line is followed; using as origin the coordinates passed by the client, and as direction the viewing vector of a camera.
  • the first intersection of the line and segmented vessels 3, will serve to position the first probe 4.
  • the probe's centre 5 is positioned on the appropriate centreline of the segmented vessel tree 6.
  • the probe's normal corresponds to the tangent vector of the vessel centreline at the probe's centre 5.
  • the server creates a cross section 7 corresponding to a first vessel section through the voxel volume, shown in Fig. 2.
  • the centre of the cross section 7 corresponds to the probe's centre 5, and the normal of the cross section corresponds to the probe's normal.
  • the cross section 7 is transferred as an image 8 to the client, as well as an updated image 9 of the view on the volume.
  • the updated image view on the volume will visualize the selected probe 4 with respect to the vessels 3.
  • the server will then move the probe 4 along the centreline of the segmented vessel 3, and send an update of the cross-section 5 and the view on the volume to the client.
  • Workflow steps 5 and 6 When the user clicks on the view of the volume on the client's screen 2 after the first probe has been placed, the second probe 12 will be placed (Fig. 3). In order to do this, the same actions as for the first probe will be performed.
  • Workflow step 7 When the user presses the "Trace” button sign 13, after both probes 4, 12 have been placed, the client will notify the server to run the tracing algorithm (Fig. 3).
  • the server will now perform a trace through the vessel tree 6, which means that the path of centreline is followed from the first probe 4 (first vessel section) to the second probe 12 (a second vessel section). Along this path, the diameter and area of the cross-section of the vessel 3 will be recorded. Using the resulting data, a stenosis can be identified. The data will be represented in a graph 14, which will be sent to the client (shown in Fig. 4)

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Human Computer Interaction (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

Cette invention concerne un procédé permettant d'exécuter une analyse automatisée des vaisseaux (AVA) dans un bloc opératoire (OR). Le procédé susmentionné comprend les étapes qui consistent à construire une image d'une ramification de vaisseaux (3) à partir d'un ensemble de données d'angiographie rotationnelle en 3D (3D-RA) du volume d'un objet; à afficher l'image (9) sur un écran (2) d'un dispositif informatique (1); à choisir une première section de vaisseau d'un vaisseau appartenant à la ramification de vaisseaux affichée en touchant l'écran à un premier emplacement correspondant, à choisir une seconde section de vaisseau du même vaisseau en touchant l'écran à un second emplacement correspondant; à exécuter une fonction de traçage du vaisseau tout le long du trajet du vaisseau entre la première section du vaisseau et la seconde section du vaisseau, la forme du vaisseau entre les deux sections de vaisseau étant examinée de manière analytique, puis à afficher une image des données correspondant à la forme du vaisseau sur l'écran.
PCT/IB2007/054110 2006-10-16 2007-10-09 Procédé permettant d'exécuter l'analyse automatisée des vaisseaux côté table dans un bloc opératoire Ceased WO2008047266A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07826695A EP2073707A2 (fr) 2006-10-16 2007-10-09 Procédé permettant d'exécuter l'analyse automatisée des vaisseaux côté table dans un bloc opératoire

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06122317.8 2006-10-16
EP06122317 2006-10-16

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WO2008047266A2 true WO2008047266A2 (fr) 2008-04-24
WO2008047266A3 WO2008047266A3 (fr) 2008-08-14

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EP (1) EP2073707A2 (fr)
CN (1) CN101522105A (fr)
WO (1) WO2008047266A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008040806A1 (de) * 2008-07-28 2010-02-11 Carl Zeiss Surgical Gmbh Verfahren zur Auswertung medizinischer Bilddaten
CN102356408A (zh) * 2009-03-20 2012-02-15 皇家飞利浦电子股份有限公司 场景视图的可视化
US11409422B2 (en) 2017-12-20 2022-08-09 Koninklijke Philips N.V. Device, system and method for interacting with vessel images

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2356367A1 (fr) 2001-08-09 2003-02-09 Trevor Skillen Technologie d'impression d'ecran de dispositif portatif sans fil
US20060020915A1 (en) 2004-07-22 2006-01-26 General Electric Company System and method for improved surgical workflow development

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4411075B2 (ja) * 2001-10-16 2010-02-10 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ プローブ位置合わせのための枝選択方法
JP2005528157A (ja) * 2002-06-04 2005-09-22 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 回転血管造影法に基づく冠状動脈構造のハイブリッド３ｄ再構成
DE102004057308A1 (de) * 2004-11-26 2006-07-13 Siemens Ag Angiographische Röntgendiagnostikeinrichtung zur Rotationsangiographie
JP3977373B2 (ja) * 2004-12-08 2007-09-19 ザイオソフト株式会社 通信端末
US7826647B2 (en) * 2005-11-23 2010-11-02 General Electric Company Methods and systems for iteratively identifying vascular structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2356367A1 (fr) 2001-08-09 2003-02-09 Trevor Skillen Technologie d'impression d'ecran de dispositif portatif sans fil
US20060020915A1 (en) 2004-07-22 2006-01-26 General Electric Company System and method for improved surgical workflow development

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008040806A1 (de) * 2008-07-28 2010-02-11 Carl Zeiss Surgical Gmbh Verfahren zur Auswertung medizinischer Bilddaten
CN102356408A (zh) * 2009-03-20 2012-02-15 皇家飞利浦电子股份有限公司 场景视图的可视化
US11409422B2 (en) 2017-12-20 2022-08-09 Koninklijke Philips N.V. Device, system and method for interacting with vessel images

Also Published As

Publication number Publication date
WO2008047266A3 (fr) 2008-08-14
CN101522105A (zh) 2009-09-02
EP2073707A2 (fr) 2009-07-01

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