A 3D printing-based realistic anthropomorphic dental phantom and its imaging evaluation

Do Il Lee, Zepa Yang, Jong-Hyo Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

In this study, we present a 3D-printing based realistic anthropomorphic dental phantom and its imaging evaluation. A real skull phantom was scanned with CBCT with high resolution, and then image segmentation and 3D modeling were carried out for bones, teeth, and soft tissue. Followed by was 3D printing of bones and teeth with gypsum, with additional 3 teeth being printed with metal separately. For soft tissue, a negative model was first printed with PMMA, and then silicon gel was casted into the negative model with printed bones and teeth set in place. The created phantom was scanned with by using an MDCT and dental CBCT scanner for image quality evaluation of CT images, panoramic images, and also metal artifacts. Our goal was to make our phantom to mimic the real skull phantom. Our proposed phantom's CT, panoramic images look almost the same with the real skull phantom's one. Mean HU of bone was comparable between 3D printed and real skull phantoms (1860 vs 1730), and mean HU of soft tissue was 40 in 3D printed dental phantom. Image quality of dental CT images assessed by an expert was comparable between real skull and 3D printed phantom. Especially, the metal artifacts from the metal printed teeth was rated as realistically mimicking the real crowned teeth. Our study demonstrated the feasibility of making 3D printing-based making realistic anthropomorphic phantoms which can be used in various dental imaging studies.

Original languageEnglish
Title of host publicationMedical Imaging 2019
Subtitle of host publicationImaging Informatics for Healthcare, Research, and Applications
EditorsPeter R. Bak, Po-Hao Chen
PublisherSPIE
ISBN (Electronic)9781510625556
DOIs
StatePublished - 1 Jan 2019
EventMedical Imaging 2019: Imaging Informatics for Healthcare, Research, and Applications - San Diego, United States
Duration: 17 Feb 201918 Feb 2019

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume10954
ISSN (Print)1605-7422

Conference

ConferenceMedical Imaging 2019: Imaging Informatics for Healthcare, Research, and Applications
CountryUnited States
CitySan Diego
Period17/02/1918/02/19

Fingerprint

Imaging Phantoms
printing
teeth
skull
Printing
Tooth
Bone
Metals
Imaging techniques
evaluation
bones
Tissue
Image quality
Skull
Calcium Sulfate
Gypsum
metals
Polymethyl Methacrylate
Silicon
artifacts

Keywords

  • 3D printer
  • Anthropomorphic
  • CT
  • Dental phantom
  • Image evaluation
  • Panoramic

Cite this

Lee, D. I., Yang, Z., & Kim, J-H. (2019). A 3D printing-based realistic anthropomorphic dental phantom and its imaging evaluation. In P. R. Bak, & P-H. Chen (Eds.), Medical Imaging 2019: Imaging Informatics for Healthcare, Research, and Applications [1095415] (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 10954). SPIE. https://doi.org/10.1117/12.2513155
Lee, Do Il ; Yang, Zepa ; Kim, Jong-Hyo. / A 3D printing-based realistic anthropomorphic dental phantom and its imaging evaluation. Medical Imaging 2019: Imaging Informatics for Healthcare, Research, and Applications. editor / Peter R. Bak ; Po-Hao Chen. SPIE, 2019. (Progress in Biomedical Optics and Imaging - Proceedings of SPIE).
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Lee, DI, Yang, Z & Kim, J-H 2019, A 3D printing-based realistic anthropomorphic dental phantom and its imaging evaluation. in PR Bak & P-H Chen (eds), Medical Imaging 2019: Imaging Informatics for Healthcare, Research, and Applications., 1095415, Progress in Biomedical Optics and Imaging - Proceedings of SPIE, vol. 10954, SPIE, Medical Imaging 2019: Imaging Informatics for Healthcare, Research, and Applications, San Diego, United States, 17/02/19. https://doi.org/10.1117/12.2513155

A 3D printing-based realistic anthropomorphic dental phantom and its imaging evaluation. / Lee, Do Il; Yang, Zepa; Kim, Jong-Hyo.

Medical Imaging 2019: Imaging Informatics for Healthcare, Research, and Applications. ed. / Peter R. Bak; Po-Hao Chen. SPIE, 2019. 1095415 (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 10954).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

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AB - In this study, we present a 3D-printing based realistic anthropomorphic dental phantom and its imaging evaluation. A real skull phantom was scanned with CBCT with high resolution, and then image segmentation and 3D modeling were carried out for bones, teeth, and soft tissue. Followed by was 3D printing of bones and teeth with gypsum, with additional 3 teeth being printed with metal separately. For soft tissue, a negative model was first printed with PMMA, and then silicon gel was casted into the negative model with printed bones and teeth set in place. The created phantom was scanned with by using an MDCT and dental CBCT scanner for image quality evaluation of CT images, panoramic images, and also metal artifacts. Our goal was to make our phantom to mimic the real skull phantom. Our proposed phantom's CT, panoramic images look almost the same with the real skull phantom's one. Mean HU of bone was comparable between 3D printed and real skull phantoms (1860 vs 1730), and mean HU of soft tissue was 40 in 3D printed dental phantom. Image quality of dental CT images assessed by an expert was comparable between real skull and 3D printed phantom. Especially, the metal artifacts from the metal printed teeth was rated as realistically mimicking the real crowned teeth. Our study demonstrated the feasibility of making 3D printing-based making realistic anthropomorphic phantoms which can be used in various dental imaging studies.

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M3 - Conference contribution

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BT - Medical Imaging 2019

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PB - SPIE

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Lee DI, Yang Z, Kim J-H. A 3D printing-based realistic anthropomorphic dental phantom and its imaging evaluation. In Bak PR, Chen P-H, editors, Medical Imaging 2019: Imaging Informatics for Healthcare, Research, and Applications. SPIE. 2019. 1095415. (Progress in Biomedical Optics and Imaging - Proceedings of SPIE). https://doi.org/10.1117/12.2513155