Quasi-simultaneous 3D printing of muscle-, lung- and bone-equivalent media: a proof-of-concept study.

Physical and Engineering Sciences in Medicine
T KairnS B Crowe

Abstract

3D printing is a promising solution for the production of bespoke phantoms and phantom components, for radiotherapy dosimetry and quality assurance (QA) purposes. This proof-of-concept study investigated the use of a dual-head printer to deposit two different filaments (polylactic acid (PLA) and StoneFil PLA-concrete (Formfutura BV, Nijmegen, Netherlands)) at several different in-fill densities, to achieve quasi-simultaneous 3D printing of muscle-, lung- and bone-equivalent media. A Raise 3D Pro 3D printer (Raise 3D Technologies Inc, Irvine, USA) was used to print one thoracic and one cranial phantom slab. Analysis using in-house 3D print QA software showed that the two humanoid phantom slabs geometrically matched the stereolithography (STL) files on which they were based, within 0.3 mm, except in one area of the thoracic slab that was affected by thermal warping by up to 3.4 mm. The 3D printed muscle, lung and bone materials in the two humanoid phantom slabs were approximately radiologically-equivalent to human muscle, lung and bone. In particular, the use of StoneFil with a nominally constant in-fill density of 100% resulted in regions that were approximately inner-bone-equivalent, at kV and MV energies. These regions were bo...Continue Reading

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Citations

Jan 15, 2021·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·Scott B CroweTanya Kairn
Jul 15, 2020·Medical Dosimetry : Official Journal of the American Association of Medical Dosimetrists·Tanya KairnScott B Crowe
Feb 17, 2021·Physical and Engineering Sciences in Medicine·Paul H CharlesTanya Kairn
Jun 11, 2021·Physical and Engineering Sciences in Medicine·Susannah ClelandTanya Kairn
Aug 31, 2021·Physical and Engineering Sciences in Medicine·Emily Simpson-PageScott B Crowe

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Software Mentioned

MeshMixer
3D
In
house
StoneFil
3D Slicer
Raise
Slicer
IdeaMaker
TinkerCAD

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