التفاصيل البيبلوغرافية
| العنوان: |
Characterization of 3-Dimensional Printing and Casting Materials for use in Computed Tomography and X-ray Imaging Phantoms |
| المؤلفون: |
Yunker, B. E., Holmgren, A., Stupic, K. F., Wagner, J. L., Huddle, S., Shandas, R., Weir, R. F., Keenan, K. E., Garboczi, E., Russek, S. E. |
| المساهمون: |
Material Measurement Laboratory |
| المصدر: |
Journal of Research of the National Institute of Standards and Technology ; volume 125 ; ISSN 2165-7254 |
| بيانات النشر: |
National Institute of Standards and Technology (NIST) |
| سنة النشر: |
2020 |
| مصطلحات موضوعية: |
General Engineering |
| الوصف: |
Imaging phantoms are used to calibrate and validate the performance of medical computed tomography (CT) systems. Many new materials developed for three-dimensional (3D) printing processes may be useful in the direct printing or casting of biomimetic and geometrically accurate CT and X-ray phantoms. The X-ray linear attenuation coefficients of polymer samples were measured to discover materials for use as tissue mimics in phantoms. This study included a cohort of polymer compounds that were tested in cured form. The cohort consisted of 101 standardized polymer samples fabricated from: two-part silicones and polyurethanes used in commercial casting processes; one-part optically cured polyurethanes used in 3D printing; and fused deposition thermoplastics used in 3D printing. The testing was performed with a commercial micro-CT imaging system from 40 kVp to 140 kVp. The X-ray linear coefficients of the samples and human tissues were plotted with error bars to allow the reader to identify suitable mimics. The X-ray linear attenuation coefficients of the tested material samples spanned a wide range of values, with a small number of them overlapping established human tissue mimic values. Twenty 3D printer materials and one castable polyurethane tracked nylon and polymethyl methacrylate (PMMA) as established X-ray mimics for fat. Five 3D printer materials tracked water as an established X-ray mimic for muscle. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| DOI: |
10.6028/jres.125.029 |
| الاتاحة: |
http://dx.doi.org/10.6028/jres.125.029 |
| رقم الانضمام: |
edsbas.394A9463 |
| قاعدة البيانات: |
BASE |