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Congress: ECR25
Poster Number: C-25755
Type: Poster: EPOS Radiologist (scientific)
Authorblock: N. Dukov, Y. Baneva, Z. Bliznakov, K. S. Bliznakova; Varna/BG
Disclosures:
Nikolay Dukov: Nothing to disclose
Yanka Baneva: Nothing to disclose
Zhivko Bliznakov: Nothing to disclose
Kristina Stanimirova Bliznakova: Nothing to disclose
Keywords: Computer applications, Radiation physics, CT, Experimental investigations, Technical aspects, Technology assessment, Education and training, Quality assurance, Tissue characterisation
Purpose Investigation of the influence of infill pattern and infill percentage on Hounsfield Units (HU) in 3D-printed objects using Fused Filament Fabrication (FFF) and Polylactic Acid (PLA) for phantom creation.
Read more Methods and materials Using a free CAD software a 3D computer model of a cube with a size of 20 mm x 20 mm x 20 mm was generated and exported as an STL file, to serve as a test object. The object was loaded in a slicing software in order to be prepared for 3D printing. The cube was duplicated, resulting in a total of thirty cubes, which were separated in three groups and each group was assigned different infill pattern. The...
Read more Results The resulting 3D printed cubes used in this study can be seen in [fig 2] A slice from the 120 kV scan of the 3D printed cubes can be seen in [fig 3] No noticeable visible differences were observed among the imaged cubes across the three energy levels.The evaluation demonstrated a clear relationship between infill percentage and HU values, where an increase in infill percentage corresponded to an increase in HU. Additionally, variations in HU were observed between different infill patterns, even at the...
Read more Conclusion The results from this study further advance the opportunities for developing low-cost phantoms for radiological applications. Ongoing research focuses on evaluating the impact of infill patterns on more complex-shaped objects and anthropomorphic phantoms.While this study examined three commonly used infill patterns in 3D printing slicing software, numerous other patterns exist. Future studies will explore additional infill patterns and investigate their effects on HU values.This study is financed by the European Union-NextGenerationEU, through the National Recovery and Resilience Plan of the...
Read more References [1]. Vallejos Baier, R., Contreras Raggio, J.I., Toro Arancibia, C., Bustamante, M., Perez, L., Burda, I., Aiyangar, A., and Vivanco, J.F.: Structure-function assessment of 3D-printed porous scaffolds by a low-cost/open source fused filament fabrication printer. Mater Sci Eng C Mater Biol Appl, 123, pp. 111945 (2021).[2]. Alssabbagh, M., Tajuddin, A., Manap, M.B., and Zainon, R.: Evaluation of nine 3D printing materials as tissue equivalent materials in terms of mass attenuation coefficient and mass density. Int J Adv Appl Sci, 4...
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