orthopedic surgery 3d planner - module: bone extractor
Contents
1. sss nennen ene nennnnnn nnn nnn nennen eee nnns 11 Te Syster FEqUIE BIeHES ito i 12 5 Additional mfornmation 13 1 Information about manufacturer ud ual OptiMedi Sp lka z o o ul Portowa 13b lok 1 70B 76 200 Stupsk tel 48 222198588 e mail info optimedi pl SN Version BH 1 5 5 224 2 Introduction Orthopedic Surgery 3D Planner Module Bone Extractor is a medical software supporting preoperative planning for orthopaedic surgical interventions in hip region It allows loading of 3D DICOM image of patient s hip and a three dimensional femur model creation It may be subsequently printed using 3D printing technology to obtain a physical model The application was designed for professional user and should be applied only in health care facilities 3 Application s main window Figure 3 1 shows the main window divided into several regions iS OptiMedi Bone Extractor Basic Anonymous Patient File Help View YF AM M E ry 4 un 5 E settings WA i vd EL Bone model generation Enable Select Region Of Interest Bone model generation m 215 305 325 134 37 119 14 126 95 mm Figure 3 1 Application s main window 3 1 Main menu Contains principal application commands 3 2 3D View Displays DICOM data in 3D view 3 32. Model generation process is divided into set of easy steps described below 5 1 Region of interest selection First step consists of selecting a region that includes targeted section of bone Select Select Region Of Interest then on the image select area that includes femur see Figure 5 2 select OK The overlay region will be limited to the selected region of interest Important aspect of region of interest selection is application s efficiency The smaller the region the lower memory usage and better performance 5 2 Greyscale spectrum selection 8 Figure 5 2 Region of interest selection 5 2 Greyscale spectrum selection Next step is to set greyscale interval in a way that extracts only the targeted bone tissue regions Use Greyscale threshold sliders The overlay display 15 synchronised with the slider 5 3 Model type selection Choose type of the model to be generated by selecting corresponding option Whole bone tissue or Femur In case of Whole bone tissue selection the model can be directly generated by pressing Generate model button The model will contain all bone tissue detected in the selected region of interest To generate the model of femur select Femur option and proceed to the next step 5 4 Femur extraction Femur extraction can be divided into three steps pre selection of a femur head exact adjustment of the head position and femur image separation 5 4 1 Femur head pre selection To pre
3. ORTHOPEDIC SURGERY 3D PLANNER MODULE BONE EXTRACTOR User manual 1 5 5 224 2013 OptiMedi rights reserved CE Cracow August 14 2014 Contents 1 Information about the 2 2 sodio ton a seme edet iu 3 3 Application s main WINdOW ccccccccccccceccceccaceessseeseceeccceeeeeeeseaaaaaeesseseeseeeeeeeeeeeeseaaaaaaessseeeeeceeeeeeeeeaas 4 o pin ER 4 Di Di ON TCV mr cT 4 WIG AP outa teatusacecbeu E 4 Dias WICW SE UIN OS N 5 25 Bone model BetietdllOR AE 5 O mO 5 SEEN P ICI Dm s 5 4 Loading and displaying DICOM images 6 5 Bone model generation I A m 7 Subs SU Se HOTEOS It eni cot oco eerie eoo cca arate 1 5 2 Greyscalespectrun selection o uut T 8 25 55 Model Type Se e t OD Orden 22000 cum dt bcd ab eat Sd sao iad 8 LMR El ACUI OM ea oat 8 head pie Se le CUlON ard dbet A OT 8 342 Adjustimg position Of femur hedd rtt ee pite E e e 9 XA aS EMI IUE E a I T T TE 10 6 Generating and saving the model
4. 2D View Displays DICOM data as a set of 2D slices representing three perpendicular planes 3 4 View settings 5 3 4 View settings A set of properties that can be used to modify object s display Each object can be independently set to be displayed or hidden show hide and its transparency setting can be modified with use of slider 3 5 Bone model generation A set of tools allowing bone model creation 3 6 Information A bar displaying informations concerning position of slices and tools for bone model creation 3 7 Separators Vertical window fields separators are movable and can be rearranged to best respond to customers needs as shown on Figure 3 2 amp OptiMedi Bone Extractor Basic Anonymous Patient File Help 215 305 325 124 37 119 14 126 95 mm Figure 3 2 Window appearance with displaced separator 2013 OptiMedi AII rights reserved 4 Loading and displaying DICOM images dcm files that constitutes the image and select OK In order to open a three dimensional DICOM image in File menu choose option Open then select one of A window will be displayed to allow for choosing DICOM series to be used in the program see Figure 4 1 After choosing appropriate series and setting windowing parameters size and position of window select Open amp OptiMedi Bone Extractor Basic File Help amp Select DICOM Series TK miedn
5. d 5 4 Femur extraction 10 Figure 5 5 Femur head position after adjustment 5 4 3 Femur extraction The last step is to extract femur After the correct fit this step requires only selection of Separate button When the extraction is successful the overlay is indicating only the femur see Figure 5 6 Verify the accurateness of extraction Figure 5 6 The result of femur extraction 2013 OptiMedi rights reserved 6 Generating and saving model In order to generate three dimensional bone model of the entire bone tissue or separated femur select Gen erate model button The model will be created basing on the overlay area and will be displayed in 3D View see Figure 6 1 Display mode can be modified hide show set transparency using View settings menu for object entitled Model Generated model can be exported as STL file by selecting Save model button The model can be deleted by selection of Delete model button Figure 6 1 The final model of femur 11 7 System requirements Minimum CPU Intel Core 13 2 5 GHz RAM 8GB Graphics card NVIDIA GeForce GT 610 512 MB OS 64 bit Windows 7 NET Framework 4 0 Recommended CPU Intel Core 17 2 5 GHz RAM 16GB Graphics card NVIDIA GeForce GTX 660 1024 MB OS 64 bit Windows 7 NET Framework 4 0 12 8 Additional information Customer can be provided with free paper edition of the manual To make an order contact us by e mail info opti
6. icy inna TK 5 View settings Bone model generation Figure 4 1 DICOM series selection When loaded the image will be displayed as three intersecting slices Using scrollbars in section 2D View allows for independent repositioning of the slices Mouse controller can be used in 3D View section for rotating moving click and hold Control key and zooming click and hold Shift key View settings menu for object Planes Hiding and showing the slices as well as changes to their transparency in 3D View can be accessed through To restore default settings for display of 3D View use right mouse button in 3D View section and select Default view 5 Bone model generation To begin model generation select option Enable in section Bone model generation A set of options shown on Figure 5 1 will be displayed Bone model generation Enable Select Region Of Interest Greyscale threshold 1 Find bone head position Automatic Select the area including bone head and click the butten Find bone head 2 Fit bone head position 3 Separate femur Generate model Delete model Save model Figure 5 1 Options for bone model generation A yellow overlay will be displayed on the image indicating image points which will be included in the model Display of the overlay can be modified using View settings menu for object entitled Overlay
7. medi pl Delivery time never exceeds 10 working days starting from the order day Manuals are available in English and Polish To view the digital edition of manual one must have a PDF viewer If you do not have one download for example free Adobe Reader using following link http get adobe com uk reader 13
8. select femur s head position a sphere in 3D View in a way that it approximately indicates head location Selection of Automatic or Manual options switches between corresponding ways of executing this process To use automatic femur head location select Automatic option surround with cuboid in 3D View and with rectangles in 2D View the area containing femur s head and select Find bone head Detected position of the head will be marked with a sphere and it will be possible to manually refine sphere s position see Figure 5 3 2013 OptiMedi rights reserved 5 4 Femur extraction 9 Figure 5 3 Preliminary selection of head location site a selection of area that contains the head b automatic detection of head position c selected position after manual refinement With option Manual selected the sphere can be moved freely and its radius can be modified with use of circles displayed in 2D View 5 4 2 Adjusting position of femur head Next step is to adjust the approximate head position to the image To do this ensure that the head has already been surrounded by the sphere Select Fit The sphere will be repositioned to the best spot see Figure 5 4 Verify the accurateness of adjustment The surface of the sphere must cover the surface of the head in the most exact way possible see Figure 5 5 Figure 5 4 Adjusting position of femur head a before adjustment b after adjustment 2013 OptiMedi rights reserve
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