WO2015150553A1 - Procédé et appareil de simulation de la conduite réelle d'un appareil d'analyse diagnostique - Google Patents

Procédé et appareil de simulation de la conduite réelle d'un appareil d'analyse diagnostique Download PDF

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Publication number
WO2015150553A1
WO2015150553A1 PCT/EP2015/057396 EP2015057396W WO2015150553A1 WO 2015150553 A1 WO2015150553 A1 WO 2015150553A1 EP 2015057396 W EP2015057396 W EP 2015057396W WO 2015150553 A1 WO2015150553 A1 WO 2015150553A1
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WO
WIPO (PCT)
Prior art keywords
terminal
examination
database
real
image sequence
Prior art date
Application number
PCT/EP2015/057396
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German (de)
English (en)
Inventor
Andreas BRÜCKMANN
Original Assignee
Brückmann Andreas
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 Brückmann Andreas filed Critical Brückmann Andreas
Publication of WO2015150553A1 publication Critical patent/WO2015150553A1/fr

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
    • G09B23/286—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine for scanning or photography techniques, e.g. X-rays, ultrasonics

Definitions

  • the invention relates to a method for imitating a real guide of a diagnostic test apparatus according to claim 1 and an arrangement therefor according to claim 7, as well as a program code according to claim 10.
  • DE 102 22 655 A1 discloses a system and a method for training an ultrasound technique in which a simulation system and a control means are used. This is in particular the use of a patient dumbbell. In accordance with a position of an image of a transducer on the dummy, an image corresponding to this position is displayed on a display device.
  • DE 198 38 140 C1 discloses a method and apparatus for Aufna hme of ultrasound images.
  • the object to be examined is scanned line by line.
  • mutually parallel layers or mutually rotationally symmetric slices of the object are bombarded with ultrasound.
  • a sensor is integrated, with which the position of the transducer can be detected.
  • the data are joined together.
  • US 2001/0306025 A1 discloses an ultrasound simulation system. Again, the position of an ultrasound probe is recorded when recording the ultrasound data, so that a subsequent reconstruction of the detected organ is possible. A data storage unit enables a subsequent evaluation of the data. A similar device is also disclosed in WO 2008/071454 A2 and in US 2010/0179428 Al.
  • the object is achieved with a method for imitating a real guidance of a diagnostic examination device with the features of claim 1 and with regard to the device aspect with an arrangement for imitating a real guidance of a diagnostic examination device having the features of claim.
  • a program code for a terminal communicating with a remote server is also provided.
  • the subclaims include expedient and / or advantageous embodiments of the method and arrangement.
  • a server with a database for imitating a real guide of a diagnostic examination device.
  • the database is used to store at least one image sequence of individual picture elements obtained and stored during a real examination course.
  • the server communicates with at least one terminal.
  • the terminal has a stored chertes program for displaying the image sequence on the terminal on.
  • Each individual picture element of the image sequence is assigned real position data of an examination device.
  • the method is carried out such that at the terminal a controlled display of the individual picture elements by the operation of an operating means arranged on the terminal takes place such that control signals generated by the officialsm be aligned with the real position data in such a way that the real leadership of the examination device is translated into an executable on the terminal virtual management of the examination device.
  • a single picture element corresponding to the real guidance of the examination device is continuously displayed on the terminal from the image sequence.
  • the basic idea of the method is thus to store image data obtained in real examinations stored on a server. These image data are in the form of individual images in an image sequence. Each frame is assigned the real position data of the examination apparatus used in the examination.
  • the terminal communicates with the server via a communication network and serves to display the image data.
  • the terminal contains an operating means with which the display of the image data can be controlled via corresponding control signals.
  • the display of the image data now takes place in such a way that the control signals generated by the operating means on the terminal are compared with the real position data assigned to the individual images from the individual image sequence.
  • This adjustment means that now on the operation of the control element on the terminal virtual guidance of the examination device is generated.
  • the user of the terminal thus actuates the operating means and on the terminal, the individual images from the image sequence are displayed, as is the case with the real leadership of the examination device.
  • the operating means on the terminal serves as vi vtual examination device, while the display on the terminal presents the image data as if the user was currently performing an investigation.
  • the handling of the examination device and thus also the execution of the examination are therefore imitated by the method.
  • the terminal has as operating means a touch-sensitive display surface.
  • movements of a pointer means placed on the display surface or are used as control signals Fingers used.
  • the display of the corresponding individual picture element takes place on the display surface of the terminal.
  • the user can, for example, move his finger or another pointer element over the display surface of a so-called smartphone or a tablet computer as if the finger or the pointer element were the real examination device. According to this movement, the single image displayed on the display then changes while the user performs a virtual scan on the display via the finger movement.
  • the database is designed as a Fal l schemesbank, being executed by the database initiated and controlled by the terminal investigative selection of individual medical cases from a plurality of stored in the case database image sequences. The user can therefore select via the terminal from a plurality of stored examination courses.
  • the database is designed as a method database.
  • the database is used to carry out a searchable selection of examination methodologies initiated by the terminal and based on a plurality of image sequences stored in the method database.
  • the user of the terminal can, for example, select between ultrasound scans, tomography scans and other diagnostic scanning methods.
  • additional data obtained from the real examination process are assigned to the respective image sequence.
  • the additional data are then retrievable during the virtual tour and are also displayed on the terminal.
  • Such additional data can be, for example, so-called Doppler scans produced during an ultrasound examination, with which the blood flow in vascular systems can be represented.
  • the method can in particular be used for the storage, processing and display of a sequence of images in the form of a sequence of position-dependent ultrasound images.
  • an arrangement for imitation of a real guide of a diagnostic examination device includes a server with a database for at least one image sequence of individual picture elements obtained and stored during a real examination course.
  • the server is designed for communication with at least one terminal.
  • the terminal includes a stored program for displaying the image sequence on the terminal and provided on the terminal operating means for displaying the Bil d tile in the form of a virtual guide of the examination device.
  • the terminal is designed in particular as a telecommunications terminal with a touch-sensitive display surface.
  • the database has a case database and / or a method database, wherein the case database has ordered image sequences according to individual cases and the method database has ordered image sequences according to examination methods.
  • a program code for a communicating with a remote server terminal loads an image sequence of individual picture elements obtained from a remote database onto the terminal during a real examination and continues to display the image sequence on the terminal, wherein the operation of an operating means arranged on the terminal translates into a virtual guidance of the examination device Finally, in the case of the virtual guide, the program code displays a single picture element from the picture sequence on the terminal that corresponds in each case to the real guide of the examination device.
  • FIGS. 1 to 11 are used for clarification.
  • the same reference numerals are used for identical and / or equivalent components and method steps.
  • 1 shows an exemplary flowchart of the method according to the invention with reference to a block diagram
  • 2 shows an exemplary provision of an image sequence for carrying out the method
  • FIG. 5 shows an exemplary representation of a virtual guide by means of a touch-sensitive display
  • FIG. 6 is an exemplary representation of additional image information, in particular ere an ultrasonic Doppler coding,
  • FIG. 7 shows an exemplary representation of a special identification, in particular a labeling, of an image area
  • FIG. 11 shows an exemplary display of a selection menu via anatomically different examination methods.
  • the illustrated arrangement comprises a server 1 with a database 2.
  • the database contains both a database 2a for stored image sequences and a database 2b for additional information and data associated with the image sequences.
  • a terminal 5 which with the server 2 performs a bidirectional data exchange via a communication network, not shown here.
  • the terminal is in the example shown here, a tablet computer.
  • a so-called smartphone or a comparable device is also possible in its place.
  • the image sequences 3 are originally obtained in real examinations and processed for later use in the process.
  • the server 2 therefore advantageously has a communication link with a medical examination device 6, for example an ultrasound diagnostic device, a tomography device or a device for other diagnostic imaging methods.
  • a medical examination device 6 for example an ultrasound diagnostic device, a tomography device or a device for other diagnostic imaging methods.
  • this communication connection is not absolutely necessary for carrying out the method according to the invention.
  • the image sequences obtained in the examination device are processed either on a processing unit connected thereto, for example a local computer with corresponding software, in the examination device itself or on the server for the method.
  • the server Towards the terminal 5, the server outputs the correspondingly processed image sequences to the terminal together with additional information 7. Finally, the thus transformed data are displayed in the terminal with a corresponding software, the pictorial representation as nachfo ling described as a virtual guide and imposes the Nachvol at the examination device 6 performed real examination process.
  • Fig. 2 shows an exemplary provision of an image sequence for carrying out the method.
  • the starting point here is a real examination procedure on an examination device 6, which is here exemplified as an ultrasound diagnostic device.
  • the user of the examination device for example a doctor, thereby guides an ultrasound head in a specific manner over the area to be diagnosed, for example the abdomen of a patient.
  • characteristic real movements 8 are performed with the ultrasound transducer.
  • ultrasound images 9 appear on a display of the examination device.
  • Each of the ultrasound images thus corresponds to a specific position the ultrasound head and the movement of the ultrasound head, for example, across the abdomen of the patient, thus leading to a sequence of Ultraschallbi countries.
  • Each individual ultrasound image thus forms a single image element 4, to which real position data 10 are assigned in each case.
  • the plurality of individual image elements formed in this way forms the entire diagnostic data material 11 of a specific, real movement 8 of the ultrasound head.
  • the amount of ultrasound images is combined in a next step to form an image sequence 3.
  • Each frame 4 is expediently designed in the form of a data format that can be displayed on the one hand by virtually all terminals and on the other hand ensures the highest possible image quality in conjunction with a sufficiently good data compression for fast transmission over a communication network.
  • JPG and / or PNG data formats are Especially useful.
  • other formats can also be used.
  • both approximate information about the arrangement of the individual image within the image sequence as well as explicit information about a position of the ultrasound head in a defined coordinate system can be obtained.
  • the approximate indications suffice to completely classify the individual image element a us when the ultrasound head has been moved over the area to be diagnosed in a predetermined and generally standardized or directly understandable manner.
  • explicit coordinates will be required if the movement of the ultrasound head is virtually arbitrary in a manner not previously determined. In such a case, at least the most accurate spatial coordinates are required, which must be additionally recorded.
  • the real position data 10 are present in the form of spatial coordinates, these essentially contain spatial coordinates in the sense of a Cartesian coordinate system, in cylinder or in spherical coordinates, as well as additional information about the axial position of the ultrasound head and its pivot angle with respect to a defined one Axis.
  • the ultrasound head it is possible, in particular, for the ultrasound head to be held at a specific location on the patient's abdomen while being rotated about its axis of the device or inclined relative to the abdomen.
  • the real position data emerge from a generally customary and sta ndardtechniken movement of the ultrasound head, essentially suffices only a continuous indexing in the sense of a serial number, so that the order of the captured individual images is maintained. As a result, the Erfa solution of the individual images can be made very simple. An actual information about the specific position of the ultrasound head and its position in space is no longer necessary.
  • a linkage parameter is required which indicates that the corresponding image sequence has emerged exactly from a specific movement 8 and thus defines this image sequence. Since it is possible in the majority of cases, the movement of the ultrasound lkopfes either with the usual direction in the anatomical area markings or specify the usual in the field of ultrasound diagnostics guides the transducer in their unified designations also specific to the fundamentally, the detailed detection of coordinates omitted as soon as it is ensured that the movement of the ultrasound head takes place according to a generally agreed, uniform and standardized pattern. In such a case, the amount of data to be collected is considerably reduced.
  • the edited image sequence 3 expediently contains concrete information about the technical design of the operation of the ultrasound device, such as the modulation method used in the sense of a B, duplex, triplex, color, color-doppler, pulse-wave Doppler or M -Modes, a 2D, 3D, 4D real-time mode, a use of contrast agents and the like more information that describe the investigation methodology and the boundary conditions applied sufficiently concrete and ambiguous characterize.
  • the edited image sequence 3 may include additional examination data, such as data obtained from a Doppler method where, and the like data more.
  • 3 shows an exemplary retrieval of the image sequence and its representation at the terminal.
  • the starting point of the method steps that take place here is the image sequence 3 stored and searchable on the server 2 in its database, which as described above resulted from a processing of the data material 11 obtained during the real examination.
  • the image sequence 3 consists of a plurality of individual image elements 4 and the individual images associated real position data 10.
  • the terminal 5 is in the present example, a so-called smartphone with a touch-sensitive display surface 12. The processing steps described below are carried out within the terminal. 5
  • the terminal contains a program code provided for this purpose. This can be designed in particular in the form of a so-called app. This is a program that is intended to be executed on a terminal designed in this way, serves to perfect and specialize the functions of the terminal and is kept ready by the servers for downloading installation on the terminal.
  • the program code provides means for a searching access and a selection on thematically upstream and accordingly stored on the database of the server image sequences. These funds will be described below.
  • the latter is either loaded as a whole from the server into the working memory of the terminal.
  • the method steps explained below are carried out completely within the terminal without communication with the server.
  • parts of the image sequence, in particular individual image elements 4 in each case, and the data associated therewith are transmitted individually by the server to the terminal and processed there.
  • both the one and the other method mode can be activated.
  • the criterion for this is the quality and the data rate of the corresponding communication connection between the server and the terminal or the processing capacity available in the terminal.
  • the image sequence 3 is unpacked in a process step 13 their individual pixels 4. This is done either after the download of the image sequence on the terminal or by the access of the terminal on the server itself. A first frame is then displayed on the display surface 12. In a next step The user performs a pointer element or a finger in the known manner on the displayed on the terminal single image. These movements 14 are registered by the touch-sensitive display surface with respect to their directions and detected as control signals 15. These control signals are supplied to an adjustment 16 and compared with the real position data 10 of the individual picture elements within the image sequence.
  • the indices i form the real position data of the executed scan.
  • two-dimensional index fields (i, j) are also possible, the individual image sequence being provided with a two-dimensional index assignment.
  • Such real position data readily translates bi-directional finger movements on the display.
  • the index i stands for a scan in a transverse direction
  • the index j for a scan in the direction of the body longitudinal axis.
  • the user can by the appropriate adapted translation of the Stier signals into the real position data thereby imitates a scan in a quasi arbitrary direction.
  • the movement of the finger corresponds to a virtual guidance of the examination apparatus, for example an ultrasound head, which in principle completely equals the previously performed real guidance of the examination apparatus and tracks its real movement.
  • the applied finger thus serves as a virtual examination device, in particular as a virtual ultrasound head. For the user, the impression of a "finger scans" arises.
  • the operating element on the terminal does not necessarily have to be a touch-sensitive display surface in every case. It is also possible to implement the said method steps using direction keys or a mini-joystick.
  • Fig. 4 shows an exemplary representation of a user menu of an app running on the device.
  • the utility menu describes a kind of bookmark entry that the user has previously created.
  • the user menu contains a designation 19 of the examined anatomical structure and a labeling 20 of the available image sequences given here as a numbering.
  • a preview image 21 is added to quickly inform the user.
  • a button 23 allows the deletion of the entry.
  • Fig. 5 shows an exemplary representation of a virtual guide by means of a touch-sensitive display.
  • the virtual guide display includes an image section 24 and a selection section 25.
  • the image section 24 is used the display of the above-mentioned individual picture elements 4. About a Jerusalemg elegant finger and its displacement, the virtual leadership described above is effected. During the displacement of the applied finger, the image content of the image section 24 thus changes virtually continuously in the context of the spatial resolution ensured by the image sequence.
  • the operating section 25 contains a number of control panels for additional functionalities. These are in the present case a field 26 for exiting the display, a field 27 for activating a Doppler representation, a field 28 for generating an ultrasonic pivot by 90 °, and a field 29 for generating a label insertable into the display.
  • the operating section effectively provides some basic functions that a real examination device also has in principle. It is thus also in addition to the imitation of a Letsa blue setting and switching on or off of additional functions possible.
  • Fig. 6 shows such an addition of an additional function to a first example.
  • Doppler information is inserted into the image by means of a color Doppler coding 30.
  • Doppler information represents the blood flow in the scanned area and is an additional factor This is added to the image sequence as additional information and thus activated and displayed.
  • the Doppler information can either be displayed as a still image, in which case it is essentially a mere symbolic display
  • the clip sequence can be displayed either as a movie format such as MPEG, MOV, MP4 and the like, but also as a so-called animated GIF image is the double representation in an obvious way the display of a periodic Play that essentially captures and outputs the effect to be displayed.
  • FIG. 7 shows an exemplary representation of a special identification, in particular a labeling, of an image area.
  • the labeling is triggered by the tapping of the field 29, which in the present example is marked "label.”
  • This activates a so-called selection box 31 in the area of the image section 24, which is scaled, shifted, stretched and compressed by means of the movement of the finger can, whereby the insertion of a designation tion, a so-called label.
  • the user is thereby given the opportunity to add additional information that seems important to him to the displayed image sequences and to mark them.
  • Fig. 8 shows an exemplary representation of a rotation of the virtual U ntsuchungs confuses by 90 °.
  • This representation is effected by actuation of the field 28, here designated A -> P.
  • the display volume shown in FIG. 5 is pivoted by 90 °.
  • This pivoting corresponds to the real examination of an axial rotation of the ultrasound head by 90 °.
  • the field 28 exactly the images from the image sequence are displayed that have been recorded with such a position of the ultrasound head. This is not just a mere rotation of the image shown, but a change in the method of investigation, which can be reproduced and imitated with this function.
  • FIG. 9 shows an exemplary display for a selection menu 40 about stored individual cases.
  • the individual cases are summarized in this example to so-called top groups, which relate to different anatomical areas and sections of the human body.
  • top groups relate to different anatomical areas and sections of the human body.
  • a list 33 below shows a list of keywords in the form of keywords that can be represented and called up to be selected.
  • the display 10 shows an exemplary display 34 for information about a selected individual case.
  • the display includes a description 35 of the respective case, a short clip 36 in the form of a summary video and one or more example images 37 for orientation.
  • the user can select the respective components individually and look at each other in detail.
  • the actual start of the imitative ultrasound examination is effected with a field 38.
  • the display on the display surface then changes, for example, to the illustration in FIG. 5.
  • FIG. 11 shows an exemplary display of a selection menu 39 via anatomically different examination methods.
  • This selection menu takes into account, for example, how the ultrasound head has been guided to the examined area.
  • "Abdominal” here means, for example, the scanning of the abdomen by placing the ultrasound head on the abdominal wall "vaginally”. about inserting the ultrasound head into the vagina.
  • the corresponding fields lead the user to the image sequences arranged according to these criteria within the database of the server.
  • the method according to the invention is not restricted to such an application.
  • the ultrasound data and the image sequences and individual images obtained therefrom it is also readily possible to process other image sequences from imaging processes in the manner described.
  • imaging methods in which the principle of ultrasound diagnostics is basically also used, such as, for example, the method of echocardiography.
  • the data can also be processed from tomographic methods of various types, for example data from a computed tomography, a magnetic resonance tomography or a positron emission tomography in the manner described.

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Abstract

L'invention concerne un procédé et un système de simulation de la conduite réelle d'un appareil d'analyse diagnostique, comprenant un serveur, doté d'une base de données pour au moins une séquence d'images obtenues et mémorisées lors d'une opération d'analyse réelle à partir d'éléments d'images individuels, qui communique avec un terminal sur lequel est stocké un programme afin d'afficher la séquence d'images sur ledit terminal, chaque élément d'image individuel étant associé à des données de position réelles d'un appareil d'analyse. Sur le terminal, l'affichage des éléments d'images individuels de la séquence d'images est commandé en actionnant un moyen de commande disposé sur le terminal de telle façon que les signaux de commande générés par ledit moyen de commande sont alignés avec les données de position réelles et que la conduite réelle de l'appareil d'analyse est convertie en une conduite virtuelle dudit appareil exécutable sur le terminal. Cette conduite virtuelle permet de visualiser en continu sur le terminal un élément d'image individuel de la séquence d'images qui correspond à la conduite réelle de l'appareil d'analyse.
PCT/EP2015/057396 2014-04-02 2015-04-02 Procédé et appareil de simulation de la conduite réelle d'un appareil d'analyse diagnostique WO2015150553A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014206328.0A DE102014206328A1 (de) 2014-04-02 2014-04-02 Verfahren zur Imitation einer realen Führung eines diagnostischen Untersuchungsgerätes, Anordnung und Programmcode hierfür
DE102014206328.0 2014-04-02

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
US10810907B2 (en) 2016-12-19 2020-10-20 National Board Of Medical Examiners Medical training and performance assessment instruments, methods, and systems

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DE10222655A1 (de) * 2002-05-22 2003-12-18 Dino Carl Novak System, Verfahren und Computerprogrammprodukt zum Trainieren einer Durchschallungstechnik, insbesondere der Ultraschalltechnik
DE102005037806A1 (de) * 2004-08-13 2006-02-23 General Electric Co. Verfahren und Vorrichtung zur Vergrösserung des Sichtfelds bei der Ultraschallbildgebung
WO2007025608A1 (fr) * 2005-09-01 2007-03-08 Tomtec Imaging Systems Gmbh Procede et dispositif de navigation et de mesure dans un ensemble de donnees d'image a plusieurs dimensions
WO2007100263A1 (fr) * 2006-03-03 2007-09-07 Sinvent As Procédé de simulation d'images ultrasonores
WO2009117419A2 (fr) * 2008-03-17 2009-09-24 Worcester Polytechnic Institute Système virtuel interactif pour la formation en ultrasons
GB2479406A (en) * 2010-04-09 2011-10-12 Medaphor Ltd Ultrasound Simulation Training System
WO2013150436A1 (fr) * 2012-04-01 2013-10-10 Ariel-University Research And Development Company, Ltd. Dispositif de formation d'utilisateurs d'un dispositif d'échographie

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DE19838140C1 (de) 1998-08-21 2000-04-20 Tomtec Imaging Syst Gmbh Verfahren und Vorrichtung zur Aufnahme von Ultraschallbildern
WO2008071454A2 (fr) 2006-12-12 2008-06-19 Unbekannte Erben Nach Harald Reindell, Vertreten Durch Den Nachlasspfleger, Rechtsanwalt Und Notar Pohl, Kay-Thomas Procédé et disposition pour le traitement de volumes d'images ultrasonographiques ainsi que programme informatique correspondant et support de stockage correspondant lisible sur ordinateur

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DE10222655A1 (de) * 2002-05-22 2003-12-18 Dino Carl Novak System, Verfahren und Computerprogrammprodukt zum Trainieren einer Durchschallungstechnik, insbesondere der Ultraschalltechnik
DE102005037806A1 (de) * 2004-08-13 2006-02-23 General Electric Co. Verfahren und Vorrichtung zur Vergrösserung des Sichtfelds bei der Ultraschallbildgebung
WO2007025608A1 (fr) * 2005-09-01 2007-03-08 Tomtec Imaging Systems Gmbh Procede et dispositif de navigation et de mesure dans un ensemble de donnees d'image a plusieurs dimensions
WO2007100263A1 (fr) * 2006-03-03 2007-09-07 Sinvent As Procédé de simulation d'images ultrasonores
WO2009117419A2 (fr) * 2008-03-17 2009-09-24 Worcester Polytechnic Institute Système virtuel interactif pour la formation en ultrasons
GB2479406A (en) * 2010-04-09 2011-10-12 Medaphor Ltd Ultrasound Simulation Training System
WO2013150436A1 (fr) * 2012-04-01 2013-10-10 Ariel-University Research And Development Company, Ltd. Dispositif de formation d'utilisateurs d'un dispositif d'échographie

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10810907B2 (en) 2016-12-19 2020-10-20 National Board Of Medical Examiners Medical training and performance assessment instruments, methods, and systems

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