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http://dx.doi.org/10.7742/jksr.2018.12.6.737

A Study on the Fabrication and Comparison of the Phantom for CT Dose Measurements Using 3D Printer  

Yoon, Myeong-Seong (Department of Radiology Science, Health Sciences College, Eulji University)
Kang, Seong-Hyeon (Department of Radiology Science, Health Sciences College, Eulji University)
Hong, Soon-Min (Device Development Team, GreenCross Medical Science)
Lee, Youngjin (Department of Radiology Science, Gachon University)
Han, Dong-Koon (Department of Radiology Science, Health Sciences College, Eulji University)
Publication Information
Journal of the Korean Society of Radiology / v.12, no.6, 2018 , pp. 737-743 More about this Journal
Abstract
Patient exposure dose exposure test, which is one of the items of accuracy control of Computed Tomography, conducts measurements every year based on the installation and operation of special medical equipment under Article 38 of the Medical Law, And keep records. The CT-Dose phantom used for dosimetry can accurately measure doses, but has the disadvantage of high price. Therefore, through this research, the existing CT - Dose phantom was similarly manufactured with a 3D printer and compared with the existing phantom to examine the usefulness. In order to produce the same phantom as the conventional CT-Dose phantom, a 3D printer of the FFF method is used by using a PLA filament, and in order to calculate the CTDIw value, Ion chambers were inserted into the central part and the central part, and measurements were made ten times each. Measurement results The CT-Dose phantom was measured at $30.44{\pm}0.31mGy$ in the periphery, $29.55{\pm}0.34mGy$ CTDIw value was measured at $30.14{\pm}0.30mGy$ in the center, and the phantom fabricated using the 3D printer was measured at the periphery $30.59{\pm}0.18mGy$, the central part was $29.01{\pm}0.04mGy$, and the CTDIw value was measured at $30.06{\pm}0.13mGy$. Analysis using the Mann - Whiteney U-test of the SPSS statistical program showed that there was a statistically significant difference in the result values in the central part, but statistically significant differences were observed between the peripheral part and CTDIw results I did not show. In conclusion, even in the CT-Dose phantom made with a 3D printer, we showed dose measurement performance like existing CT-Dose phantom and confirmed the possibility of low-cost phantom production using 3D printer through this research did it.
Keywords
CT; CT Dose measure; CT-Dose Phantom; 3D printer; CTDIw;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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