Best Practices in 3D Printing: An MSK Perspective Kenneth C. Wang, - - PowerPoint PPT Presentation

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Best Practices in 3D Printing: An MSK Perspective Kenneth C. Wang, - - PowerPoint PPT Presentation

Feb 14, 2024 627 likes •1.07k views

Best Practices in 3D Printing: An MSK Perspective Kenneth C. Wang, M.D., Ph.D. Staff Radiologist, Baltimore VA Medical Center Assistant Professor (Adjunct), University of Maryland SOM @SIIM_Tweets #SIIM18 Disclosures Research support: 3D

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Best Practices in 3D Printing: An MSK Perspective

Kenneth C. Wang, M.D., Ph.D. Staff Radiologist, Baltimore VA Medical Center Assistant Professor (Adjunct), University of Maryland SOM

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Disclosures

  • Research support: 3D Systems
  • Co-founder, DexNote LLC
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Outline

  • Clinical collaboration
  • Image acquisition
  • Model construction
  • Printing
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Outline

Imaging Modeling Printing Collaboration

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Collaboration

  • Understand the clinical problem
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Collaboration

  • Understand the clinical problem
  • e.g. shoulder arthroplasty
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Shoulder arthroplasty

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Shoulder arthroplasty

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Glenoid bony morphology

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Glenoid bony morphology

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Glenoid bony morphology

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Glenoid bony morphology

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Glenoid bony morphology

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Glenoid bony morphology

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Glenoid bony morphology

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Glenoid bony morphology

  • Selection of procedure
  • Use of surgical adjuncts
  • Angulation of central pin
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Glenoid bony morphology

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Outline

Imaging Modeling Printing Collaboration

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Slice thickness

  • Isotropic or near-isotropic voxels
  • Balance against image noise
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Soft tissue kernel

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Field of view

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Outline

Imaging Modeling Printing Collaboration

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Image pre-processing

  • Filtering
  • Cropping
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Image pre-processing

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Image pre-processing

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Bones can be challenging

  • Osteopenia
  • Osteophytes
  • Articular bodies
  • Surgical fragments
  • Bone-on-bone contact
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Bones can be challenging

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Bones can be challenging

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Bones can be challenging

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Imprinted identifier

  • Accession number
  • Research identifier
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Virtual model QA

  • Mask / surface verification in three planes
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Archive model file(s)

  • Encapsulated STL, DICOM 2018b

http://dicom.nema.org

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Outline

Imaging Modeling Printing Collaboration

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Printed model QA

  • Physical measurement of key dimensions of printed model
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Printed model QA

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Printed model QA

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Outline

Imaging Modeling Printing Collaboration

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Collaboration

  • Model attributes
  • Modeling decisions
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Collaboration

  • Communication
  • Material options
  • Iterative process
  • Opportunity to engage
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Conclusions

Imaging Modeling Printing Collaboration

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Acknowledgments

  • Dr. Elias Melhem
  • Dr. Jeffrey Hirsch
  • Dr. Peter Liacouras, 3D MAC, WRNMMC
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