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Abstract

¸ñ Àû : ¿¬ºÎÁ¶Á÷Á¾¾çÀ» Á¦°ÅÇÑ Á÷ÈÄ Á¶Á÷³» ¹æ»ç¼±Ä¡·á¿ë µµ°üÀ» »ðÀÔÇÏ¿© ±ÙÁ¢¹æ»ç¼±Ä¡
·á¸¦ ½ÃÇàÇß´ø Áõ·ÊµéÀ» Åä´ë·Î °í¼±·®À² Á¶Á÷³» ¹æ»ç¼±Ä¡·áÀÇ ½Ã¼ú¹æ¹ý, Ä¡·á½Ã±â, ¼±·®,
¹× ºÎÀÛ¿ë µî¿¡ ´ëÇØ ³íÀÇ ÇÏ°íÀÚ ÇÑ´Ù.
Àç·á ¹× ¹æ¹ý : 1995³â 5¿ù¿¡¼­ 1997³â 12¿ù±îÁö 10¸íÀÇ ¿ø¹ß¼º ȤÀº Àç¹ß¼ºÀÇ ¿¬ºÎÁ¶Á÷
Á¾¾ç ȯÀÚ°¡ Á¾¾çÀÇ Á¦ÇÑÀû ÀýÁ¦¼ú ÈÄ¿¡ Á¶Á÷³» ¹æ»ç¼±Ä¡·á ¹× ¿ÜºÎ¹æ»ç¼±Ä¡·á¸¦ ½ÃÇà¹Þ¾Ò
´Ù. Á¾¾çÀ» Á¦°ÅÇÑ Á÷ÈÄ µµ°üÀ» Á¾¾çÀÌ ÀÖ¾ú´ø ÀÚ¸®¿¡ 1¡­1.5§¯ °£°ÝÀ¸·Î »ðÀÔÇÏ¿´°í Á¾¾ç
°¡±îÀÌ¿¡ ½Å°æÇ÷°ü¼Ó ȤÀº »À°¡ ÀÖ¾ú´ø °æ¿ì¿¡´Â Á©Æû, ±ÙÀ°, ȤÀº tissue expander·Î µ¤¾î
À̵é Áß¿ä ±¸Á¶¹°µé°ú µµ°üÀÌ Àû¾îµµ 0.5§¯ °£°ÝÀ» À¯ÁöÇϵµ·Ï ÇÏ¿´´Ù. Á¶Á÷³» ¹æ»ç¼±Ä¡·á´Â
À̸®µð¿ò-192°¡ ÀåÂøµÈ °í¼±·®À² ±ÙÁ¢¹æ»ç¼±Ä¡·á±â¸¦ »ç¿ëÇÏ¿© ¼ö¼ú ÈÄ 6ÀÏ°ºÎÅÍ ½ÃÀÛÇÏ
¿´°í µ¿À§¿ø¼ÒÀÇ Áß½ÉÃàÀ¸·ÎºÎÅÍ 1§¯ °Å¸®¿¡ ÃÑ 12¡­15§í(2¡­2.5§í/fraction)¸¦ ÀÏÀÏ 2ȸ¾¿ 3
ÀÏ°£ ½ÃÇàÇÏ¿´´Ù. ¼ö¼ú ÈÄ ÇÑ ´Þ À̳»¿¡ ¿ÜºÎ¹æ»ç ¼±Ä¡·á¸¦ ½ÃÇàÇÏ¿´À¸¸ç ÃÑ 50¡­55§í¸¦ Á¶
»çÇÏ¿´´Ù.
°á °ú : ¸ðµç ȯÀÚ°¡ °¨¿°À̳ª ÃâÇ÷°ú °°Àº ±ÙÁ¢¹æ»ç¼±Ä¡·á¿Í Á÷Á¢ °ü·ÃµÈ ºÎÀÛ¿ë ¾øÀÌ
°èȹµÇ¾îÁø Á¶Á÷³» ¹æ»ç¼± Ä¡·á¸¦ ¸¶ÃÆ´Ù. Áß¾Ó ÃßÀû°üÂû±â°£ 25°³¿ù°(¹üÀ§ 12¡­41°³¿ù)±î
Áö ±¹¼ÒÀç¹ßÀº °üÂûµÇÁö ¾Ê¾Ò°í RTOG/EORTC µî±Þ 3 ȤÀº 4ÀÇ ¸¸¼º ºÎÀÛ¿ëµµ ¾ø¾ú´Ù.
°á ·Ð : ÁÖÀ§Á¤»óÁ¶Á÷¿¡ Á¶»çµÇ´Â ¹æ»ç¼±·®À» ÃÖ¼ÒÈ­Çϸ鼭 ¼ö¼ú ÈÄ ´Ü±â°£ ³»¿¡ ½ÃÇàÇÒ
¼ö ÀÖ´Â °í¼±·®À² Á¶Á÷³»¹æ»ç¼±Ä¡·á´Â ¿¬ºÎÁ¶Á÷Á¾¾çÀÇ Á¦ÇÑÀû ¼ö¼ú ÈÄÀÇ Ä¡·á¹æ¹ýÀ¸·Î½á ¾È
ÀüÇÏ°í ¼Õ½±°Ô ÀÌ¿ëÇÒ ¼ö ÀÖÀ¸¸ç ¶ÇÇÑ Ä¡·áÈ¿°ú ¹× ºÎÀÛ¿ë Ãø¸é¿¡¼­µµ ¿ì¼öÇÑ Ä¡·á¹æ¹ýÀÌ
´Ù.

Purpose : To discuss the technical aspect of interstitial brachytherapy including
method of implant, insertion time of radioactive source, total radiation dose, and
complication, we reviewed patients who had diagnoses of soft tissue sarcoma and were
treated by conservative surgery, interstitial implant and external beam radiation therapy.
Materials and Methods : Between May 1995 and Dec. 1997, ten patients with primary
or recurrent soft tissue sarcoma underwent surgical resection (wide margin excision)
and received radiotherapy including interstitial brachytherapy. Catheters were placed with
regular intervals of 1¡­1.5 §¯ immediately after tumor removal and covering the critical
structures, such as neurovascular bundle or bone, with gelform, muscle, or tissue
expander in the cases where the tumors were close to those structures. Brachytherapy
consisted of high dose rate, iridium-192 implant which delivered 12¡­15 §í to 1 §¯
distance from the center of source axis with 2¡­2.5 §í/fraction, twice a day, starting on
6th day after the surgery. Within one month after the surgery, total dose of 50¡­55 §í
was delivered to the tumor bed with wide margin by the external beam radiotherapy.
Results : All patients completed planned interstitial brachytherapy without acute side
effects directly related with catheter implantation such as infection or bleeding. With
median follow up duration of 25 months (range 12¡­41 months), no local recurrences
were observed. And there was no severe form of chronic complication (RTOG/EORTC
grade 3 or 4).
Conclusion : The high dose rate interstitial brachytherapy is easy and safe way to
minimize the radiation dose delivered to the adjacent normal tissue and to decrease
radiation induced chronic morbidity suck as fibrosis by reducing the total dose of
external radiotherapy in the management of soft tissue sarcoma with conservative
surgery.

Å°¿öµå

¿¬ºÎÁ¶Á÷Á¾¾ç; Á¶Á÷³» ¹æ»ç¼±Ä¡·á; ±ÙÁ¢¹æ»ç¼±Ä¡·á; °í¼±·®·ü; Interstitial brachytherapy; High dose rate; Soft tissue sarcoma; Technical aspect;

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