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Abstract

¸ñÀû: ¾ó±¼ Àü»êÈ­´ÜÃþÃÔ¿µ ¿µ»ó°ú ¹ÝÀÚµ¿È­ ÇÁ·Î±×·¥À» ÀÌ¿ëÇÏ¿© ¾È±¸¿ëÀûÀ» ÃøÁ¤ÇÏ°í ¾È±¸¿ëÀûÀÇ ¾ÈÃàÀå°úÀÇ »ó°ü°ü°è ¹× ¾È±¸¿ëÀûÀ» ÃßÁ¤Çϴ ȸ±ÍºÐ¼®À» ¿¬±¸ÇÏ°íÀÚ ÇÏ¿´´Ù.

´ë»ó°ú ¹æ¹ý: ¾ó±¼ Àü»êÈ­´ÜÃþÃÔ¿µÀ» ½ÃÇàÇÑ 20¸í, 40¾ÈÀ» ´ë»óÀ¸·Î ¹ÝÀÚµ¿È­ ÇÁ·Î±×·¥(MATLAB r2009a, MathWorks, Inc., Natick, MA, USA)À» ÀÌ¿ëÇÏ¿© ¾ó±¼ Àü»êÈ­´ÜÃþÃÔ¿µ »çÁøÀÇ Ã࿵»ó°ú °ü»ó¿µ»óÀÇ ¾È±¸ ´Ü¸éÀûÀ» °¢°¢ ÃøÁ¤ÇÏ¿´°í, ÃøÁ¤ ´Ü¸éÀûÀ» ´©ÀûÇÏ¿© ¾È±¸¿ëÀûÀ» °è»êÇÏ¿´´Ù. ¾ÈÃàÀåÀº A-scan ÃÊÀ½Æĸ¦ ÀÌ¿ëÇÏ¿© ÃøÁ¤µÇ¾úÀ¸¸ç, ¾È±¸¿ëÀû°ú ¾ÈÃàÀå °£ ȸ±ÍºÐ¼®À» Æ÷ÇÔÇÑ Åë°èÀû ºÐ¼®À» ½ÃÇàÇÏ¿´´Ù.

°á°ú: ¾È±¸¿ëÀûÀÇ ÃøÁ¤ °á°ú, ³²¼ºÀº Æò±Õ 7.16 ¡¾ 1.80 cm3, ¿©¼ºÀº Æò±Õ 7.24 ¡¾ 3.38 cm3¿´´Ù. ¶ÇÇÑ ¾ÈÃàÀåÀÇ ÃøÁ¤ °á°ú ³²¼ºÀº Æò±Õ 23.47 ¡¾ 0.69 mm, ¿©¼ºÀº Æò±Õ 23.23 ¡¾ 1.64 mm·Î ÃøÁ¤µÇ¾úÀ¸¸ç ¾È±¸¿ëÀû°ú ¾ÈÃàÀåÀº ³²³à °£ À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù. ¾È±¸¿ëÀû°ú ¾ÈÃàÀåÀº Pearson »ó°ü°è¼ö¿Í Àü¹æ±íÀ̸¦ °í·ÁÇÑ Æí»ó°ü°è¼ö¿¡¼­ ¸ðµÎ À¯ÀÇÇÑ ¾çÀÇ »ó°ü°ü°è¸¦ º¸¿´À¸¸ç ´Ü¼øȸ±ÍºÐ¼®À» ÅëÇØ À¯ÀÇÇÑ Åë°è½ÄÀÌ µµÃâµÇ¾ú´Ù(¾È±¸¿ëÀû[cm3] = 0.0056558 x ¾ÈÃàÀå3 [mm3] ? 0.1798106 x ¾ÈÃàÀå2 [mm2] + 32.9008570 [p<0.001, R2=0.384]).

°á·Ð: º» ¿¬±¸ÀÇ ¾È±¸¿ëÀûÃøÁ¤¹ýÀº ºñħ½ÀÀûÀÎ ¾ó±¼ Àü»êÈ­´ÜÃþÃÔ¿µÀ» ÀÌ¿ëÇÑ °ÍÀ¸·Î Ưº°ÇÑ ÀåÄ¡ ¾øÀÌ ¾È±¸¿ëÀûÀ» ÃøÁ¤Çϴµ¥ ¸Å¿ì À¯¿ëÇÑ µµ±¸ÀÌ´Ù. º» ¿¬±¸ÀÇ ¾ÈÃàÀå°úÀÇ Åë°è½ÄÀ» ÅëÇØ ¾È±¸¿ëÀûÀÇ ÃßÁ¤ ¶ÇÇÑ Á¤È®ÇÏ°Ô ÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î ±â´ëµÇ¸ç À̵éÀ» ÅëÇØ ¿©·¯ ¾ÈÁúȯ ¹× ¼ö¼ú ÀüÈÄ ¾È±¸¿ëÀû¿¡ ´ëÇÑ Ãß°¡ ¿¬±¸¿¡ µµ¿òÀÌ µÉ ¼ö ÀÖÀ» °ÍÀ¸·Î »ý°¢µÈ´Ù.

Purpose: To measure the ocular volume from facial computed tomography (CT) scans using a semi-automatic computer program, and to analyze possible correlations between the axial length and ocular volume using regression analysis.

Methods: Forty eyes from 20 facial CT scans were used to measure the ocular volumes. The cross-sectional ocular areas were calculated using a semi-automatic program based on MATLAB r2009a (MathWorks, Inc., Natick, MA, USA), and the ocular volumes were calculated from serial cross-sectional areas. The axial lengths were measured by A-scan ultrasound. Statistical analysis including regression analysis was used to determine possible correlations between the ocular volumes and axial lengths.

Results: The mean ocular volumes measured in males and females were 7.16 ¡¾ 1.80 cm3 and 7.24 ¡¾ 3.38 cm3, respectively. The mean axial lengths measured in males and females were 23.47 ¡¾ 0.69 mm and 23.23 ¡¾ 1.64 mm, respectively. There were positive correlations using Pearson¡¯s correlation coefficient and the partial correlation coefficient adjusted by axial length. Using regression analysis, the following statistically significant equation was derived: (ocular volume [cm3] = 0.0056558 ¡¿ axial length3 [mm3] ? 0.1798106 ¡¿ axial length2 [mm2] + 32.9008570 [p < 0.001, R2 = 0.384]).

Conclusions: The ocular volume measurement tool in this study was noninvasive and very useful, without special equipment. Accurate estimation of ocular volumes by a statistical equation was feasible, and these findings may be helpful in further study of various ocular diseases and in predicting preoperative and postoperative ocular volumes.

Å°¿öµå

Axial length; Facial computed tomography; Ocular volume; Volume measurements

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