Evaluation of nine 3D printing materials as tissue equivalent materials in terms of mass attenuation coefficient and mass density

Alssabbagh, et al.

doi:10.21833/ijaas.2017.09.024

Cited by 38 publications

(31 citation statements)

References 14 publications

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“…There fore, among the exist ing fil a ment ma te ri als, the com po si tion of PLA is the most sim i lar to that of the mam mary gland tis sue. These val ues are the same as those re ported by Alssabbagh et al [21], who at tempted to find fil a ment ma te ri als with sim i lar dose dis tri bu tions ac cord ing to the an a tom i cal po si tion.…”

Section: Ta Ble 2 the El E Men Tal Com Po Si Tions Of The Sub Sti Tute Ma Te Ri Als [21]supporting

confidence: 83%

“…Thus, we searched for a com mer cial fil a ment ma te rial sold in the mar ket that could re place the mam mary gland tis sue. Ta ble 2 summa rizes the de tails of the se lected com mer cial fil a ment ma te ri als that have com po si tions and den si ties sim i lar to the hu man body [21]. Af ter eval u at ing the dose of each ma te rial, we searched for the fil a ment ma te rial that showed a dose that was the most sim i lar to that of an ac tual mam mary gland tis sue.…”

Section: Eval U a Tion Of Fil A Ment Ma Te Rialmentioning

confidence: 99%

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Filament material evaluation for breast phantom fabrication using three-dimensional printing

Lee

Kang

et al. 2020

NUCL TECH RAD PROT

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In this study, a method of directly evaluating the dose received by the highly radiation-sensitive mammary gland during mammography was investigated, and a corresponding breast phantom was produced that expresses a mammary gland, as an alternative to the existing mixed-form phantom. After designing this breast phantom by performing Monte Carlo simulations, the glandular dose was evaluated and compared with that of a mixed-form phantom. Then, dose evaluation was conducted for current commercial filament materials that could be used to fabricate the phantom by 3-D printing. The results showed that the dose received by the mammary gland was in the range of 1.089-1.237 mGy, and the average difference from that determined using the mixed-form phantom was approximately 1.2 %. Among the filament materials, polylactic acid showed the dose that was the most similar to that of the mammary gland tissue, differing by approximately 2.4 %. Overall, the research results suggest that it is meaningful to evaluate the glandular dose using the developed phantom instead of a mixed-form phantom. Besides, polylactic acid is the most appropriate material for fabricating the mammary gland tissue using a 3-D printer.

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Section: Ta Ble 2 the El E Men Tal Com Po Si Tions Of The Sub Sti Tute Ma Te Ri Als [21]supporting

confidence: 83%

Section: Eval U a Tion Of Fil A Ment Ma Te Rialmentioning

confidence: 99%

Filament material evaluation for breast phantom fabrication using three-dimensional printing

Lee

Kang

et al. 2020

NUCL TECH RAD PROT

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“…Phantoms used in radiation dosimetry should be made of materials that render the same radiological properties as the real organ tissues, especially in terms of the radiation attenuation. Although various 3D-printing materials have been studied [2,8,9,13,23,24], there is no agreement on printing parameters and settings used, such as the in-90% fill density was best suited for mimicking human soft tissues by using the CubePro 3D printer. Bladder and rectum were 3D printed as hollow objects, with a 90% infilled outer boundary (with thickness about 5-6 mm) and the uterus was solid.…”

Section: Discussionmentioning

confidence: 99%

“…Phantoms used in radiation dosimetry should be made of materials that render the same radiological properties as the real organ tissues, especially in terms of the radiation attenuation. Although various 3D-printing materials have been studied [ 2 , 8 , 9 , 13 , 23 , 24 ], there is no agreement on printing parameters and settings used, such as the infill density and infill pattern of materials with different 3D-printing systems. It appears that depending on the intended application, specific settings should be considered to use with any 3D printer and material.…”

Section: Discussionmentioning

confidence: 99%

“…In this study, ABS filaments were used to print the organs due to its density (1.05 g/cm 3 ) and other properties' similarity to water [23,24]. A fused deposition modelling (FDM) 3D printer (CubePro, 3D Systems Inc., USA) was chosen to print the models due to its ability to print ABS layer-by-layer to create a 3D object.…”

Section: D-printed Internal Organ Construction and Printing Proceduresmentioning

confidence: 99%

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Development of a novel and low-cost anthropomorphic pelvis phantom for 3D dosimetry in radiotherapy

Babaloui¹,

Polak²,

Ghorbani³

et al. 2020

jcb

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Purpose The aim of this study was to construct a low-cost, anthropomorphic, and 3D-printed pelvis phantom and evaluate the feasibility of its use to perform 3D dosimetry with commercially available bead thermoluminescent dosimeters (TLDs). Material and methods A novel anthropomorphic female phantom was developed with all relevant pelvic organs to position the bead TLDs. Organs were 3D-printed using acrylonitrile butadiene styrene. Phantom components were confirmed to have mass density and computed tomography (CT) numbers similar to relevant tissues. To find out clinically required spatial resolution of beads to cause no perturbation effect, TLDs were positioned with 2.5, 5, and 7.5 mm spacing on the surface of syringe. After taking a CT scan and creating a 4-field conformal radiotherapy plan, 3 dose planes were extracted from the treatment planning system (TPS) at different depths. By using a 2D-gamma analysis, the TPS reports were compared with and without the presence of beads. Moreover, the bead TLDs were placed on the organs’ surfaces of the pelvis phantom and exposed to high-dose-rate (HDR) 60 Co source. TLDs’ readouts were compared with the TPS calculated doses, and dose surface histograms (DSHs) of organs were plotted. Results 3D-printed phantom organs agreed well with body tissues regarding both their design and radiation properties. Furthermore, the 2D-gamma analysis on the syringe showed more than 99% points passed 3%- and 3-mm criteria at different depths. By calculating the integral dose of DSHs, the percentage differences were –1.5%, 2%, 5%, and 10% for uterus, rectum, bladder, and sigmoid, respectively. Also, combined standard uncertainty was estimated as 3.5% ( k = 1). Conclusions A customized pelvis phantom was successfully built and assessed to confirm properties similar to body tissues. Additionally, no significant perturbation effect with different bead resolutions was presented by the external TPS, with 0.1 mm dose grid resolution.

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Development of breast phantoms using a 3D printer and glandular dose evaluation

Lee

Yang

2021

J Applied Clin Med Phys

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In this study, breast phantoms were fabricated by emulating glandular and adipose tissues separately using a three-dimensional (3D) printer. In addition, direct and quantitative glandular dose evaluations were performed. A quantitative method was developed to evaluate the glandular and adipose tissues separately when performing glandular dose evaluations. The variables used for glandular dose evaluation were breast thickness, glandular tissue ratio, and additional filter materials. The values obtained using a Monte Carlo simulation and those measured using a glass dosimeter were compared and analyzed. The analysis showed that as the glandular tissue ratio increased, the dose decreased by approximately 10%, which is not a significant variation. The comparison revealed that the simulated values of the glandular dose were approximately 15% higher than the measured values. The use of silver and rhodium filters resulted in a mean simulated dose of 1.00 mGy and 0.72 mGy, respectively, while the corresponding mean measured values were 0.89 mGy ± 0.03 mGy and 0.62 mGy ± 0.02 mGy. The mean glandular dose can be reliably evaluated by comparing the simulated and measured values.

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Evaluation of nine 3D printing materials as tissue equivalent materials in terms of mass attenuation coefficient and mass density

Cited by 38 publications

References 14 publications

Filament material evaluation for breast phantom fabrication using three-dimensional printing

Filament material evaluation for breast phantom fabrication using three-dimensional printing

Development of a novel and low-cost anthropomorphic pelvis phantom for 3D dosimetry in radiotherapy

Development of breast phantoms using a 3D printer and glandular dose evaluation

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