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

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 Systems • Co-founder, DexNote LLC @SIIM_Tweets #SIIM18

Outline • Clinical collaboration • Image acquisition • Model construction • Printing @SIIM_Tweets #SIIM18

Outline Imaging Collaboration Modeling Printing @SIIM_Tweets #SIIM18

Collaboration • Understand the clinical problem @SIIM_Tweets #SIIM18

Collaboration • Understand the clinical problem • e.g. shoulder arthroplasty @SIIM_Tweets #SIIM18

Shoulder arthroplasty @SIIM_Tweets #SIIM18

Shoulder arthroplasty @SIIM_Tweets #SIIM18

Glenoid bony morphology @SIIM_Tweets #SIIM18

Glenoid bony morphology @SIIM_Tweets #SIIM18

Glenoid bony morphology @SIIM_Tweets #SIIM18

Glenoid bony morphology @SIIM_Tweets #SIIM18

Glenoid bony morphology @SIIM_Tweets #SIIM18

Glenoid bony morphology @SIIM_Tweets #SIIM18

Glenoid bony morphology @SIIM_Tweets #SIIM18

Glenoid bony morphology • Selection of procedure • Use of surgical adjuncts • Angulation of central pin @SIIM_Tweets #SIIM18

Glenoid bony morphology @SIIM_Tweets #SIIM18

Outline Imaging Collaboration Modeling Printing @SIIM_Tweets #SIIM18

Slice thickness • Isotropic or near-isotropic voxels • Balance against image noise @SIIM_Tweets #SIIM18

Soft tissue kernel @SIIM_Tweets #SIIM18

Field of view @SIIM_Tweets #SIIM18

Outline Imaging Collaboration Modeling Printing @SIIM_Tweets #SIIM18

Image pre-processing • Filtering • Cropping @SIIM_Tweets #SIIM18

Image pre-processing @SIIM_Tweets #SIIM18

Image pre-processing @SIIM_Tweets #SIIM18

Bones can be challenging • Osteopenia • Osteophytes • Articular bodies • Surgical fragments • Bone-on-bone contact @SIIM_Tweets #SIIM18

Bones can be challenging @SIIM_Tweets #SIIM18

Bones can be challenging @SIIM_Tweets #SIIM18

Bones can be challenging @SIIM_Tweets #SIIM18

Imprinted identifier • Accession number • Research identifier @SIIM_Tweets #SIIM18

Virtual model QA • Mask / surface verification in three planes @SIIM_Tweets #SIIM18

Archive model file(s) • Encapsulated STL, DICOM 2018b http://dicom.nema.org @SIIM_Tweets #SIIM18

Outline Imaging Collaboration Modeling Printing @SIIM_Tweets #SIIM18

Printed model QA • Physical measurement of key dimensions of printed model @SIIM_Tweets #SIIM18

Printed model QA @SIIM_Tweets #SIIM18

Printed model QA @SIIM_Tweets #SIIM18

Outline Imaging Collaboration Modeling Printing @SIIM_Tweets #SIIM18

Collaboration • Model attributes • Modeling decisions @SIIM_Tweets #SIIM18

Collaboration • Communication • Material options • Iterative process • Opportunity to engage @SIIM_Tweets #SIIM18

Conclusions Imaging Collaboration Modeling Printing @SIIM_Tweets #SIIM18

Acknowledgments • Dr. Elias Melhem • Dr. Jeffrey Hirsch • Dr. Peter Liacouras, 3D MAC, WRNMMC @SIIM_Tweets #SIIM18

@SIIM_Tweets #SIIM18