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Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
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¿µ¹®Á¦¸ñ(English Title) |
Liver Splitting Using 2 Points for Liver Graft Volumetry |
ÀúÀÚ(Author) |
¼Á¤ÁÖ
¹ÚÁ¾¿ø
Jeong-Joo Seo
Jong-Won Park
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¿ø¹®¼ö·Ïó(Citation) |
VOL 19-B NO. 02 PP. 0123 ~ 0126 (2012. 04) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®Àº »ýü°£ÀÌ½Ä Àü¿¡ º¹ºÎ MDCT(Multi-Detector Computed Tomography) ¿µ»ó¿¡¼ °£ À̽ÄÆíÀÇ Ã¼ÀûÀ» °£´ÜÇÏ°í Á¤È®ÇÏ°Ô °è»êÇϱâ À§ÇÏ¿© Á°£°ú ¿ì°£À» ³ª´©´Â ¹æ¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. º» ¾Ë°í¸®ÁòÀº ±âÁõÀÚ¿Í ¼öÇýÀÚÀÇ ¾ÈÀüÀ» º¸ÀåÇϱâ À§ÇÏ¿© ½Ã½ºÅÛ°ú ÀÇ·áÁøÀÇ »óÈ£ÀÛ¾÷À» ÃÖ¼ÒÈ ÇÏ¿© ÀÇ·áÁøÀÌ ¼ö¼ú Àü À̽ÄÆíÀÇ ÆÇ´ÜÀ» Á¤È®ÇÏ°Ô Ã³¸®ÇÒ ¼ö ÀÖµµ·Ï ÇÏ¿´´Ù. °£ÀÌ ÃßÃâµÈ ¿µ»ó¿¡ Á°£°ú ¿ì°£À» ³ª´ ¼ö ÀÖ´Â 2Á¡(Áß°£ Á¤¸Æ(MHV: Middle Hepatic Vein) ³»ºÎÀÇ ÇÑ Á¡°ú Á¿칮¸Æ(PV: Portal Vein) ºÐÁöºÎ¿¡¼ ÇÑ Á¡)À» ¼±ÅÃÇÑ´Ù. ¼±ÅÃµÈ Áß°£Á¤¸Æ ³»ºÎÀÇ Á¡À» ÀÌ¿ëÇÏ¿© Áß°£Á¤¸ÆÀ» ÀÚµ¿ ÀνÄÇÑ ÈÄ Áß°£Á¤¸ÆÀ» ±âÁØÀ¸·Î Àý°³¼±À» °áÁ¤ÇÏ¿© ¹®¸Æ ºÐÁöºÎÀÇ ÇÑ Á¡À» ¿¬°áÇÏ´Â Àý°³¸éÀ» Çü¼ºÇÑ´Ù. Á°£°ú ¿ì°£ÀÇ Ã¼Àû°ú °£ Àüü¿¡ ´ëÇÑ Á¿찣ÀÇ ºñÀ²À» °è»êÇÑ´Ù. °è»êµÈ üÀûÀÇ Á¤È®¼ºÀ» ÀÔÁõÇϱâ À§ÇØ Áø´Ü ¹æ»ç¼±°ú Àǻ簡 ¼öµ¿À¸·Î ó¸®ÇÏ¿© °è»êÇÑ Ã¼Àû°ú ÇÔ²² ¼ö¼ú Áß È¹µæÇÑ ½ÇÃø¹«°Ô¿Í ºñ±³ÇÏ¿´´Ù. ½ÇÃø¹«°Ô¿Í ¼öµ¿À¸·Î ¿¹ÃøµÈ üÀû »çÀÌÀÇ ¿ÀÂ÷¿¡ ´ëÇÑ Æò±Õ¡¾Ç¥ÁØÆíÂ÷´Â 162.38cm3¡¾124.39ÀÌ°í, ½ÇÃø¹«°Ô¿Í 2Á¡À» ÀÌ¿ëÇÏ¿© ¿¹ÃøµÈ üÀû°úÀÇ ¿ÀÂ÷¿¡ ´ëÇÑ Æò±Õ¡¾Ç¥ÁØÆíÂ÷´Â 107.69cm3¡¾97.24ÀÌ´Ù. ½ÇÃø¹«°Ô¿Í ¼öµ¿À¸·Î ¿¹ÃøµÈ üÀûÀÇ »ó°ü°ü°è´Â 0.79ÀÌ°í, ½ÇÃø¹«°Ô¿Í 2Á¡À» ÀÌ¿ëÇÏ¿© ¿¹ÃøµÈ üÀûÀÇ »ó°ü°ü°è´Â 0.87ÀÌ´Ù. ±×¸®°í 2Á¡À» ¼±ÅÃÇÑ ÈÄ Á¿찣À» ºÐÇÒÇÏ¿© üÀûÀ» °è»êÇÏ´Â ½Ã°£À» ÃøÁ¤ÇÏ¿© ¼ö¼ú½Ç¿¡¼ ½Ç½Ã°£À¸·Î ó¸® °¡´ÉÇÑÁöÀÇ ¿©ºÎ¸¦ È®ÀÎÇÏ¿´´Ù. ÇÑ µ¥ÀÌÅͼ¼Æ®(149.17pages¡¾55.92) ´ç ó¸® ½Ã°£ÀÇ Æò±Õ¡¾Ç¥ÁØÆíÂ÷´Â 57.28sec¡¾32.81ÀÌ´Ù.
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¿µ¹®³»¿ë (English Abstract) |
This paper proposed a method to separate a liver into left and right liver lobes for simple and exact volumetry of the river graft at abdominal MDCT(Multi-Detector Computed Tomography) image before the living donor liver transplantation. A medical team can evaluate an accurate river graft with minimized interaction between the team and a system using this algorithm for ensuring donor's and recipient's safe. On the image of segmented liver, 2 points(PMHV: a point in Middle Hepatic Vein and PPV: a point at the beginning of right branch of Portal Vein) are selected to separate a liver into left and right liver lobes. Middle hepatic vein is automatically segmented using PMHV, and the cutting line is decided on the basis of segmented Middle Hepatic Vein. A liver is separated on connecting the cutting line and PPV. The volume and ratio of the river graft are estimated. The volume estimated using 2 points are compared with a manual volume that diagnostic radiologist processed and estimated and the weight measured during surgery to support proof of exact volume. The mean ¡¾ standard deviation of the differences between the actual weights and the estimated volumes was 162.38cm3¡¾124.39 in the case of manual segmentation and 107.69cm3¡¾97.24 in the case of 2 points method. The correlation coefficient between the actual weight and the manually estimated volume is 0.79, and the correlation coefficient between the actual weight and the volume estimated using 2 points is 0.87. After selection the 2 points, the time involved in separation a liver into left and right river lobe and volumetry of them is measured for confirmation that the algorithm can be used on real time during surgery. The mean ¡¾ standard deviation of the process time is 57.28sec¡¾32.81 per 1 data set (149.17pages¡¾55.92).
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Å°¿öµå(Keyword) |
»ýü°£À̽Ä
MDCT º¹ºÎ¿µ»ó
2Á¡ ÀÌ¿ë °£ ºÐÇÒ
°£ À̽ÄÆíÀÇ Ã¼Àû °è»ê
LDLT(Living Donor Liver Transplantation)
MDCT Abdominal Image
Liver Segmentation Using 2 Points
Liver Graft Volumetry
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