medical 3d printing and standard requirement issues€¦ · 21/01/2019 · medical 3d printing and...
TRANSCRIPT
![Page 1: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/1.jpg)
Medical 3D printing and Standard requirement issues
Kyu Won Shim MD, PhD.Department of Neurosurgery, Severance Children’s
Hospital, Yonsei University, College of Medicine, Seoul, Korea
1
![Page 2: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/2.jpg)
No conflict of interest
2
![Page 3: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/3.jpg)
3
The application of 3D printingThe pros and cons of 3D printing
Pros- High versatility of design- Custom made manufacturing which has been impossible to be
mass manufacturing.- High efficient manufacturing which has no way to be possible so far.- Simplified and regional manufacturing Cons- Limitation of size and speed of manufacturing- No to possible to be mass production- Not east to reach higher level of designing and quality control- Limitation of materials
![Page 4: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/4.jpg)
4
![Page 5: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/5.jpg)
5
![Page 6: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/6.jpg)
Skull DefectsCancer which destructing skull and adjacent structures TraumaInfection
Common situation in NeurosurgeryCosmetic appearance?
Skull -> Protection-> Normal CSF circulation-> Prevention of Syndrome of Trephined. 6
![Page 7: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/7.jpg)
Workflow for Medical 3D Printing
7
![Page 8: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/8.jpg)
George E, Liacouras P, Rybicki FJ, Mitsouras D. Measuring and Establishing the Accuracy and Reproducibility of 3D Printed Medical Models. Radiographics. 2017 Sep-Oct;37(5):1424-1450
8
![Page 9: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/9.jpg)
• Materialise's Interactive Medical Image Control System
• Mimics is the medical image based processing tool for creating 3D models, and linking the models to rapid prototyping (RP), computer aided engineering (CAE), computer aided design (CAD), and surgery planning.
• SurgiCase CMF is Materialise’s CT based craniomaxillofacial surgical planning software.
9
![Page 10: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/10.jpg)
Segmentation; thresholding
• create models based on the grayvalues (Hounsfield units in CT images)
• A grayvalue is a number associated with an image pixel defining the shade (white, gray, or black) of the pixel.
• By grouping together similar grayvalues, the image data can be segmented, and models created.
•
10
![Page 11: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/11.jpg)
Create cranioplasty prosthesis
11
![Page 12: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/12.jpg)
Creation of the cranioplasty prosthesis; sequence of CAD operations
12
![Page 13: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/13.jpg)
Creation of the cranioplasty prosthesis; sequence of CAD operations
13
![Page 14: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/14.jpg)
- 3D Mirroring of Defect- Restoration of Defect
Workflow for Implant
14
![Page 15: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/15.jpg)
• Restoration of Defect• Design of basic Prosthesis• Design of Mesh (Porous) Part and Solid Part Implant• Maximal approximation to original 3D
Solid
Mesh (Porous)
Workflow for Implant
15
![Page 16: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/16.jpg)
On demand design of Flange for Screw and plate
Workflow for Implant
16
![Page 17: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/17.jpg)
Workflow for Implant
17
![Page 18: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/18.jpg)
Creation of the cranioplasty prosthesis
• This prosthesis has some specific characteristics:– A certain shape, depending on the used guiding curves.– A certain thickness, depending on the used offset
parameter.– A certain clearance from the bone, depending on the
used hollowing distance.
18
![Page 19: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/19.jpg)
Patient-specific Implant(PSI)Medical Requirements of PSI
1. Fully covering of defect and patients specific function2. Low infection and inflammatory reaction3. Physically inert4. Biocompatible and tissue friendly 5. Easy to handle and form as we wish6. Easy to use and be accessible
19
![Page 20: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/20.jpg)
Additive Manufacturing Standards Structure
20
![Page 21: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/21.jpg)
21
![Page 22: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/22.jpg)
22
![Page 23: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/23.jpg)
23
![Page 24: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/24.jpg)
24
![Page 25: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/25.jpg)
25
![Page 26: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/26.jpg)
ISO/IEC JTC 1 /WG 12 - 3D Printing and Scanning
26
![Page 27: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/27.jpg)
ISO/IEC JTC 1/WG 12 - 3D Printing and Scanning
27
![Page 28: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/28.jpg)
Segmentation: thresholding • Create models based on the grayvalues (Hounsfield
units in CT images)• A grayvalue is a number associated with an image
pixel defining the shade (white, gray, or black) of the pixel
• By grouping together similar grayvalues, the image data can be segmented, and models created
28
![Page 29: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/29.jpg)
Segmentation of Medical Images
29
![Page 30: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/30.jpg)
Segmentation of Medical Images
30
![Page 31: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/31.jpg)
Segmentation of Medical Images
31
![Page 32: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/32.jpg)
32
![Page 33: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/33.jpg)
33
![Page 34: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/34.jpg)
George E, Liacouras P, Rybicki FJ, Mitsouras D. Measuring and Establishing the Accuracy and Reproducibility of 3D Printed Medical Models. Radiographics. 2017 Sep-Oct;37(5):1424-1450
34
![Page 35: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/35.jpg)
• Foreword
• Introduction
• 1. Scope
• 2. Normative references
• 3. Terms and definitions
• 4. Symbols and abbreviated terms
• 5. Objective of segmentation for orbital wall
• 6. Process Flow
• 7. Data preparation
• 8. Preprocessing
• 9. Network structure for segmentation
• 10. Evaluation
• 11. Post processing
• Annex A (informative). Clinical background
• Annex B. Considerations for overall segmentation performance
• Annex C. References
35
NP Draft : Information technology — 3D Printing and Scanning —Segmentation for Image-Based Modeling of Orbit
![Page 36: Medical 3D printing and Standard requirement issues€¦ · 21/01/2019 · Medical 3D printing and Standard requirement issues Kyu Won Shim MD, PhD. Department of Neurosurgery, Severance](https://reader035.vdocuments.net/reader035/viewer/2022081614/5fc464bd8688fa2a0977b09e/html5/thumbnails/36.jpg)
Conclusion• Image; CT, MRI….• DICOM• Segmentation• 3D handler• STL based imager• CAD/CAM• Slicer/G coder• 3D printing
Application orientated standardization
36