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º¸±ÞÇü 3DÇÁ¸°Å͸¦ ÀÌ¿ëÇÑ ÀÎü ¸ðÇü »À ÆÒÅÒ Á¦ÀÛÀÇ ±âÃÊ¿¬±¸: Femur ´ë»óÀ¸·Î ÀûÃþÇü Ãâ·Â ¹æ½Ä ÀÌ¿ë

A Fundamental Study on the Fabrication of Human Model Bone Phantom using an Entry-Level 3D Printer: using FDM Method for the Femur Model

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³²±ÃÀºÀç, ±èµµÈñ, ±è¼ÒÈñ, ¹Ú¼¼Àº, Á¤´Ùºó, ¹Ú»óÇù, Ç㿵ö,
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³²±ÃÀºÀç ( Namkung Eun-Jae ) - Eulji University Department of Radiological Science
±èµµÈñ ( Kim Do-Hee ) - Eulji University Department of Radiological Science
±è¼ÒÈñ ( Kim So-Hui ) - Eulji University Department of Radiological Science
¹Ú¼¼Àº ( Park Se-Eun ) - Eulji University Department of Radiological Science
Á¤´Ùºó ( Jung Da-Bin ) - Eulji University The Graduate School Department of Radiological Science
¹Ú»óÇù ( Park Sang-Hyub ) - Asan Medical Center Department of Radiology
Ç㿵ö ( Heo Yeong-Cheol ) - Eulji University Department of Radiological Science

Abstract

º» ¿¬±¸¿¡¼­´Â º¸±ÞÇü 3D ÇÁ¸°Å͸¦ ÀÌ¿ëÇÏ¿© ÀÎü Femur¿Í À¯»çÇÑ HU °ªÀ» °¡Áø ÆÒÅÒÀ» Á¦ÀÛÇÏ¿© ±âÁ¸ µÅÁö »À¸¦ ´ëüÇÒ ¼ö ÀÖ´ÂÁö ºÐ¼®ÇϰíÀÚ ÇÏ¿´´Ù. ÀÎü FemurÀÇ HU °ªÀ» ¾Ë¾Æº¸±â À§ÇØ ¿¬·Éº° ÃÑ 372¸íÀÇ µ¥ÀÌÅ͸¦ ºÐ¼®ÇÏ¿´´Ù. º¸±ÞÇü 3D ÇÁ¸°Å͸¦ ÀÌ¿ëÇÏ¿© PLA-Cu 20%¸¦ ÀÌ¿ëÇÏ¿© ÀÎü »À ¸ðÇü ÆÒÅÒÀ» Á¦ÀÛÇÏ¿© CT °Ë»çÇÏ¿´´Ù. µÅÁö »À´Â »ýÈÄ 6°³¿ù µÈ µÅÁö·Î µµÃàµÈ Áö 2ÀÏÀÌ Áö³­ »À¸¦ ÀÌ¿ëÇÏ¿´´Ù. °Ë»ç°á°ú ³»ºÎ ä¿ò 80%·Î Á¦ÀÛÇÑ 3D ÇÁ¸°ÆÃ ÆÒÅÒÀÌ ÀÎüÀÇ ¸ðµç µ¥ÀÌÅÍ¿Í À¯»çÇÑ °ªÀÌ ³ªÅ¸³µ°í(p<0.05) µÅÁö»À¿Í´Â Â÷À̰¡ ÀÖ¾ú´Ù(p>0.05). ¶ÇÇÑ ¿¬·É´ëº° FemurÀÇ HU °ªÀÇ °æ¿ì ¿¬·É´ë°¡ Áõ°¡ÇÒ¼ö·Ï HUÀÇ °ªÀº ÁÙ¾îµå´Â °ÍÀ¸·Î È®ÀÎ µÇ¾ú´Ù(p<0.05). 3D ÇÁ¸°ÆÃ°ú HU °ªÀº ÀûÃþ ³ôÀÌ¿¡ ´ëÇØ¼­´Â ¾àÇÑ À½ÀÇ »ó°ü¼ºÀ» È®ÀÎ ÇÏ¿´Áö¸¸ ³»ºÎ ä¿ò¿¡¼­´Â 182.13¡¾1.290À¸·Î °­ÇÑ ¾çÀÇ »ó°ü¼º(R2=0.996)À» È®ÀÎÇÏ¿´´Ù(p<0.05). °á·ÐÀûÀ¸·Î 3D ÇÁ¸°ÆÃÀ» ÀÌ¿ëÇÑ ÀÎü ¸ðÇü ÆÒÅÒÀÌ ±âÁ¸ µÅÁö»À ÆÒÅÒ¿¡ ºñÇØ ÀÎü¿Í À¯»çÇÑ Á¤µµÀÇ HU °ªÀ» ³ªÅ¸³¾ ¼ö ÀÖÀ½À» È®ÀÎÇÒ ¼ö ÀÖ¾úÀ¸¸ç ÀÌ¿¡ º» ¿¬±¸°¡ 3D ÇÁ¸°Å͸¦ ÀÌ¿ëÇÑ ÀÎü ¸ðÇü ÆÒÅÒÀÇ Á¦ÀÛ¿¡ ±âÃÊÀڷḦ Á¦°øÇÒ ¼ö ÀÖÀ» °ÍÀ̶ó »ç·áµÈ´Ù.

The purpose of this study was to create a phantom with a HU value similar to that of the human Femur using a 3D printer to replace the existing pig bone. A total of 372 people were analyzed to determine the HU value of human Femur. Using a 3D printer, a human bone model phantom was fabricated using PLA-Cu 20% and subjected to CT examination. Pig bones were 6 months old pigs, and bones 2 days after slaughter were used. As a result of the examination, the 3D printing phantom made with 80% of the internal filling showed a similar value to all data of the human body (p<0.05), and there was a difference from the pig bone (p>0.05). In addition, in the case of the HU value of Femur by age group, it was confirmed that the value of HU decreased as the age group increased (p<0.05). 3D printing and HU values ??confirmed a weak negative correlation with respect to the stacking height, but confirmed a strong positive correlation (R2 = 0.996) with 182.13¡¾1.290 in the inner filling (p<0.05). In conclusion, it was confirmed that the human body model phantom using 3D printing can exhibit a similar level of HU value to the human body compared to the existing pig bone phantom, and this study will provide basic data for the production of a human body model phantom using a 3D printer.

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CT phantom; 3D printer; human bone model phantom

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