Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

È®»êÇü ´Ùħ °íÁÖÆÄ Àü±ØÀ» ÀÌ¿ëÇÑ °£ ¼ÒÀÛ¹ýÀÇ ½ÇÇèÀû ¿¬±¸ An Experimental Study on Hepatic Ablation Using an Expandable

´ëÇѹæ»ç¼±ÀÇÇÐȸÁö 1999³â 41±Ç 6È£ p.1127 ~ 1132
¼Ò¼Ó »ó¼¼Á¤º¸
ÃÖµ¿ÀÏ/Dong Il Choi ÀÓÈ¿±Ù/¹ÚÁ¾¹Î/°­º¸°æ/¿ìÁö¿µ/ÀåÇöÁ¤/±è½ÂÈÆ/ÀÌ¿øÀç/¹Úö±Ù/ÇãÁø¼®/Hyo Keun Lim/Jong Min Park/Bo Kyung Kang/Ji Young Woo/Hyun Jung Jang/Seung Hoon Kim/Won Jae Lee/Cheol Keun Park/Jin Seok Heo

Abstract

¸ñÀû: ÀûÃâµÈ µÅÁö °£¿¡¼­ È®»êÇü ´Ùħ °íÁÖÆÄ Àü±ØÀ» ÀÌ¿ëÇÑ °£ ¼ÒÀÛ¹ýÀ» ½ÃÇàÇÏ¿© °¢Á¶°Ç
¿¡ µû¸¥ ¼ÒÀÛµÈ º´º¯ÀÇ Å©±â¸¦ ¾Ë¾Æ ÀÓ»ó¿¡ ÀÀ¿ëÇÏ°íÀÚ ÇÏ¿´´Ù.
´ë»ó ¹× ¹æ¹ý: ½ÇÇè¿¡ »ç¿ëÇÑ °íÁÖÆÄ ¹ß»ý ÀåÄ¡´Â ´Ü±Ø ¹æ½ÄÀ̾ú´Ù. ¿Üħ Á÷°æÀÌ 15GÀÌ°í
³»ºÎ¿¡ °¢°¢ 4°³¿Í 7°³ÀÇ È®»êÇü °¥°í¸®¸ð¾ç ³»Ä§À» °®´Â µÎ Á¾·ùÀÇ Àü±¹À» »ç¿ëÇÏ¿´´Ù
(RITA Medical System. Mountain View, CA). °¥°í¸® ³»Ä§À» ÆîÄ¡´Â Á¤µµ, ¸ñÇ¥ ÃÖ°í ¿Â
µµ, ¼ÒÀÛ ½Ã°£µéÀ» Á¤ÇÑ ÈÄ ¸ðµç Á¶°ÇÀ» Á¶ÇÕÇÏ¿© ½Å¼±ÇÑ µÅÁö °£¿¡¼­ ½ÇÇèÇÏ¿´´Ù. ¹Ì¸® Á¤
ÇØÁø Á¶°Ç¿¡ µû¶ó ¼ÒÀÛµÈ ¿­¼º º´º¯ÀÇ ÃÖ´ë Á÷°æÀ» Àý´Ü¸é¿¡¼­ ÃøÁ¤ÇÏ¿´À¸¸ç, ±×Áß ´ëÇ¥¼º
ÀÖ´Â 10°³´Â Á¶Á÷º´¸® ¼Ò°ßÀ» °üÂûÇÏ¿´´Ù.
°á°ú: °¥°í¸® ³»Ä§ 4°³ÀÇ È®»êÇü ´Ùħ Àü±¹ÀÇ °æ¿ì °¥°í¸® ³»Ä§À» 3cm·Î ÆîÃÆÀ» ¶§ °ø ¸ð
¾çÀÇ ¿­¼º º´º¯Àº ¼ÒÀÛ ½Ã°£ÀÌ 11ºÐ ±îÁö´Â ¼³Á¤µÈ ¸ñÇ¥ ÃÖ°í ¿Âµµ°¡ ³ôÀ»¼ö·Ï, °íÁÖÆÄ ¹ß
»ý ½Ã°£ÀÌ ±æ¼ö·Ï Ä¿Á³´Ù. 11ºÐ ÀÌÈÄ¿¡´Â ¼ÒÀÛµÈ ºÎÀ§ÀÇ Å©±â¿¡ À¯ÀÇÇÑ Â÷ÀÌ´Â ¾ø¾ú°í, ÃÖ´ë
Ⱦ Á÷°æÀº 3.3cm¿´´Ù. °¥°í¸® ³»Ä§À» 2cm·Î ÆîÄ¡¸é Å©±â´Â ¾à 2/3·Î ÁÙ¾ú°í, °¥°í¸® ³»Ä§À»
1cm·Î ÆîÄ¡¸é ±æÂßÇÑ º´º¯ÀÌ µÇ¾ú´Ù. ³»Ä§ÀÌ 7°³ÀÎ ´Ùħ Àü±¹ÀÇ °æ¿ì °¥°í¸® ³»Ä§À» 3cm,
·Î ÆîÃÆÀ» ¶§ 100¡É¿¡¼­ ¼ÒÀÛ ½Ã°£ 14ºÐ ±îÁö °íÁÖÆÄ ¹ß»ý ½Ã°£ÀÌ ±æ¼ö·Ï º´º¯ÀÌ Ä¿Á³À¸¸ç,
ÃÖ´ëÁ÷°æÀº 4.1cm¿´´Ù. Çö¹Ì°æ ¼Ò°ß¿¡¼­ ¼ÒÀÛ º´º¯Àº °£ ¼¼Æ÷ÀÇ º¯¼ºÀ» º¸ÀÌ´Â ºÎÀ§°¡ ´ëºÎ
ºÐÀ̾úÀ¸¸ç, ±¹¼ÒÀûÀ¸·Î ÀÀ°í¼º ±«»ç°¡ °üÂûµÇ¾ú´Ù.
°á·Ð: È®»êÇü ´Ùħ °íÁÖÆÄ Àü±ØÀ» ÀÌ¿ëÇÑ °£ ¼ÒÀÛ¹ýÀº °¥°í¸® ¸ð¾ç ³»Ä§ÀÇ È®»ê Á¤µµ, ¸ñÇ¥
ÃÖ°í¿Âµµ ¹× ¼ÒÀÛ ½Ã°£¿¡ µû¶ó ¿¹°ß °¡´ÉÇÑ ´Ù¾çÇÑ Å©±âÀÇ ¼ÒÀÛ ºÎÀ§¸¦ ¸¸µé ¼ö ÀÖ¾ú´Ù.
#ÃÊ·Ï#
Purpose: The purpose of this study was to determine the factors influencing on the size
of thermal lesions after ablation using an expandable radio-frequency needle electrode in
porcine liver.
Materials and Methods: Ablation procedures involved the use of a monopolar
radio-frequency generator and 15-G needle electrodes with four and seven retractable
hooks (RITA Medical System, Mountain View, Cal., U.S.A). The ablation protocol in
fresh porcine liver comprised of combinations of varying hook deployment, highest set
temperature, and ablation time. Following ablation, the maximum diameter of all thermal
lesions was measured on a longitudinal section of the specimen. Ten representive lesions
were examined by an experienced pathologist.
Results: At 3-cm hook deployment of the needle electrode with four lateral hooks, the
size of spherical thermal lesions increased substantially with increases in the highest set
temperature and ablation time until 11 minutes. After 11 minutes lesion size remained
similar, with a maximum diameter of 3.3 cm. At 2-cm hook deployment, sizes decreased
to about 2/3 of those at 3 cm, and at 1-cm hook deployment lesions were oblong. At
3-cm hook deployment of a needle electrode with seven hooks, the size of thermal
lesions increased with increasing ablation time until 14 minutes, and the maximum
diameter was 4.1 cm. Microscopic examination showed a wide zone of degeneration and
focal coagulation necrosis.
Conclusion: The size of thermal lesions produced by the use of an expandable
radio-frequency needle electrode were predictable, varying according to degree of hook
deployment, highest set temperature, and ablation time.

Å°¿öµå

Animals; Liver interventional procedure; Radiofrequency (RF) ablation;

¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸

µîÀçÀú³Î Á¤º¸

KoreaMed
KAMS