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The Evaluation of Composite Dose using Deformable Image Registration in Adaptive Radiotherapy for Head and Neck Cancer

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Ȳöȯ ( Hwang Chul-Hwan ) - ºÎ»ê°¡Å縯´ëÇб³ º¸°Ç°úÇдëÇÐ ¹æ»ç¼±Çаú
°í¼ºÁø ( Ko Seong-Jin ) - ºÎ»ê°¡Å縯´ëÇб³ º¸°Ç°úÇдëÇÐ ¹æ»ç¼±Çаú
±èâ¼ö ( Kim Chang-Soo ) - ºÎ»ê°¡Å縯´ëÇб³ º¸°Ç°úÇдëÇÐ ¹æ»ç¼±Çаú
±èÁ¤ÈÆ ( Kim Jung-Hoon ) - ºÎ»ê°¡Å縯´ëÇб³ º¸°Ç°úÇдëÇÐ ¹æ»ç¼±Çаú
±èµ¿Çö ( Kim Dong-Hyun ) - ºÎ»ê°¡Å縯´ëÇб³ º¸°Ç°úÇдëÇÐ ¹æ»ç¼±Çаú
ÃÖ¼®À± ( Choi Seok-Yoon ) - ºÎ»ê°¡Å縯´ëÇб³ º¸°Ç°úÇдëÇÐ ¹æ»ç¼±Çаú
¿¹¼ö¿µ ( Ye Soo-Young ) - ºÎ»ê°¡Å縯´ëÇб³ º¸°Ç°úÇдëÇÐ ¹æ»ç¼±Çаú
°­¼¼½Ä ( Kang Se-Sik ) - ºÎ»ê°¡Å縯´ëÇб³ º¸°Ç°úÇдëÇÐ ¹æ»ç¼±Çаú

Abstract

ÀûÀÀ¹æ»ç¼±Ä¡·á(adaptive radiotherapy, ART)½Ã ȹµæµÈ ´Ù´Ü°è CT¿µ»óÀ¸·ÎºÎÅÍ º¯Çü¿µ»óÁ¤ÇÕÀ» ÀÌ¿ëÇÏ¿© Àüü 󹿼±·®¿¡ ´ëÇÑ ÁÖº¯ Á¤»óÁ¶Á÷ÀÇ ÇÕ¼º¼±·®À» ȹµæÇϰí, °¢°¢ÀÇ ´ÜÀÏ Ä¡·á°èȹÀ¸·ÎºÎÅÍ ÇÕ»êµÇ¾îÁø ¼±·®À» ºñ±³ºÐ¼®ÇÏ¿© ÀÓ»óÀû ÀÇÀǸ¦ ¾ò°íÀÚ ÇÑ´Ù. 2011³â 5¿ù 1ºÎÅÍ 2012³â 7¿ù 31ÀϱîÁö µÎ°æºÎ Á¾¾çÀ¸·Î 3Â÷¿ø ÀÔüÁ¶ÇüÄ¡·á, ¼¼±âº¯Á¶¹æ»ç¼±Ä¡·á¸¦ ½ÃÇàÇÑ È¯ÀÚ Áß¿¡¼­ Ä¡·á±â°£ Áß Á¾¾çÅ©±âÀÇ º¯È­, üÁßÀÇ ±Þ°ÝÇÑ °¨¼Ò µîÀ¸·Î ÀÎÇØ ÀûÀÀ¹æ»ç¼±Ä¡·á¸¦ ½ÃÇàÇÑ È¯ÀÚ¸¦ ´ë»óÀ¸·Î ÇÏ¿´´Ù. º¯Çü¿µ»óÁ¤ÇÕÀ» ÀÌ¿ëÇÏ¿© Àüü 󹿼±·®¿¡ ´ëÇÑ ÁÖº¯ Á¤»óÁ¶Á÷ÀÇ ÇÕ¼º¼±·®À» ȹµæÇÒ ¼ö ÀÖ¾úÀ¸¸ç, ´ÜÀÏ Ä¡·á°èȹÀ¸·ÎºÎÅÍ ÇÕ»êµÇ¾îÁø ¼±·®°úÀÇ ºñ±³¿¡¼­ ÇϾǰñ($48.95{pm}3.89$ ¼ö½Ä À̹ÌÁö vs $49.10{pm}3.55$ ¼ö½Ä À̹ÌÁö Gy), ±¸°­($36.93{pm}4.03$ ¼ö½Ä À̹ÌÁö vs $38.97{pm}5.08$ ¼ö½Ä À̹ÌÁö Gy), ÀÌÇϼ±($35.71{pm}6.22$ ¼ö½Ä À̹ÌÁö vs $36.12{pm}6.70$ ¼ö½Ä À̹ÌÁö Gy), ÅΰüÀý($18.41{pm}9.60$ ¼ö½Ä À̹ÌÁö vs $20.13{pm}10.42$ ¼ö½Ä À̹ÌÁö Gy)¿¡¼­ Â÷ÀÌÀÇ °á°ú¸¦ º¸¿´´Ù. ÀûÀÀ¹æ»ç¼±Ä¡·á½Ã º¯Çü¿µ»óÁ¤ÇÕ¿¡ ÀÇÇÑ ÇÕ¼º¼±·®°ú ´ÜÀÏ Ä¡·á°èȹÀ¸·ÎºÎÅÍ ÇÕ»êµÇ¾îÁø ¼±·®°úÀÇ À¯ÀÇÇÑ Â÷À̸¦ È®ÀÎÇÒ ¼ö ÀÖ¾úÀ¸¸ç, ´Ù´Ü°è CT¿µ»óÀ» »ç¿ëÇÏ´Â °æ¿ì º¯Çü¿µ»óÁ¤ÇÕ¿¡ ÀÇÇÑ ÇÕ¼º¼±·®È¹µæÀº ÁÖº¯ Á¤»óÁ¶Á÷¿¡ ´ëÇØ º¸´Ù Á¤È®ÇÑ Æò°¡°¡ °¡´ÉÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.

In adaptive radiotherapy(ART), generated composite dose of surrounding normal tissue on overall treatment course which is using deformable image registration from multistage images. Also, compared with doses summed by each treatment plan and clinical significance is considered. From the first of May, 2011 to the last of July, 2012. Patients who were given treatment and had the head and neck cancer with 3-dimension conformal radiotherapy or intensity modulated radiotherapy, those who were carried out adaptive radiotherapy cause of tumor shrinkage and weight loss. Generated composite dose of surrounding normal tissue using deformable image registration was been possible, statistically significant difference was showed to mandible($48.95{pm}3.89$ ¼ö½Ä À̹ÌÁö vs $49.10{pm}3.55$ ¼ö½Ä À̹ÌÁö Gy), oral cavity($36.93{pm}4.03$ ¼ö½Ä À̹ÌÁö vs $38.97{pm}5.08$ ¼ö½Ä À̹ÌÁö Gy), parotid gland($35.71{pm}6.22$ ¼ö½Ä À̹ÌÁö vs $36.12{pm}6.70$ ¼ö½Ä À̹ÌÁö Gy) and temporomandibular joint($18.41{pm}9.60$ ¼ö½Ä À̹ÌÁö vs $20.13{pm}10.42$ ¼ö½Ä À̹ÌÁö Gy) compared with doses summed by each treatment plan. The results of this study show significant difference between composite dose by deformable image registration and doses summed by each treatment plan, composite dose by deformable image registration may generate more exact evaluation to surrounding normal tissue in adaptive radiotherapy.

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Adaptive Radiotherapy (ART); Deformable Image Registration; Dose Volume Histogram (DVH)

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