Computed Tomography Attenuation of Three-Dimensional (3D) Printing Materials-Depository to Aid in Constructing 3D-Printed Phantoms

被引：1
|
作者：
Kalidindi, Yuktesh [1 ]
Ganapathy, Aravinda Krishna [2 ]
Nayak, Yash [2 ]
Elumalai, Anusha [3 ]
Chen, David Z. [2 ]
Bishop, Grace [3 ]
Sanchez, Adrian [3 ]
Albers, Brian [4 ]
Shetty, Anup S. [3 ]
Ballard, David H. [3 ]
机构：
[1] St Louis Univ, Sch Med, St Louis, MO 63104 USA
[2] Washington Univ St Louis, Sch Med, St Louis, MO 63110 USA
[3] Washington Univ, Sch Med, Mallinckrodt Inst Radiol, St Louis, MO 63110 USA
[4] BJC Healthcare, St Louis Childrens Hosp Med 3D Printing Ctr, St Louis, MO 63110 USA
来源：
MICROMACHINES | 2023年 / 14卷 / 10期
基金：
美国国家卫生研究院;
关键词：
3D printing; FormLabs; attenuation; stereolithography; computed tomography; CT;
D O I：
10.3390/mi14101928
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Three-dimensionally printed phantoms are increasingly used in medical imaging and research due to their cost-effectiveness and customizability, offering valuable alternatives to commercial phantoms. The purpose of this study was to assess the computed tomography (CT) attenuation characteristics of 27 resin materials from Formlabs, a 3D printing equipment and materials manufacturer. Cube phantoms (both solid and hollow constructions) produced with each resin were subjected to CT scanning under varying tube current-time products with attenuation measurements recorded in Hounsfield units (HU). The resins exhibited a wide range of attenuation values (-3.33 to 2666.27 HU), closely mimicking a range of human tissues, from fluids to dense bone structures. The resins also demonstrated consistent attenuation regardless of changes in the tube current. The CT attenuation analysis of FormLabs resins produced an archive of radiological imaging characteristics of photopolymers that can be utilized to construct more accurate tissue mimicking medical phantoms and improve the evaluation of imaging device performance.
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页数：11
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