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Abstract

¸ñÀû : ³ª¼±½Ä CT¸¦ ÀÌ¿ëÇÏ¿© À§¾ÏÀÇ ¼ö¼úÀü ¸²ÇÁÀý º´±â°áÁ¤À» Çϴµ¥ ÀÖ¾î »õ·Î¿î TNM
ºÐ·ù¿¡ µû¸¥ ¼ºÀûÀ» ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.
´ë»ó ¹× ¹æ¹ý : ³ª¼±½Ä CT¸¦ ½ÃÇàÇÏ¿´°í, À§ÀýÁ¦¼úÀº ¹ÞÀº ÁøÇàÀ§¾Ï ȯÀÚ 60¸íÀ» ´ë»óÀ¸·Î
ÇÏ¿´À¸¸ç, Á¶±âÀ§¾Ï ȯÀÚ´Â ´ë»ó¿¡¼­ Á¦¿ÜÇÏ¿´´Ù. ³ª¼±½Ä CT ½ºÄµÀü 600-800§¢ÀÇ ¹°À» °æ±¸
Á¶¿µÁ¦·Î ¸¶½Ã°Ô ÇÏ¿´°í, 150§¢ÀÇ Á¶¿µÁ¦¸¦ ÃÊ´ç 4mLÀÇ ¼Óµµ·Î ÁÖÀÔ½ÃÀÛ ÈÄ 60ÃÊ¿¡ ¹®¸Æ±â
¿µ»óÀ» ¾ò¾ú´Ù. ½ºÄµ¹æ¹ýÀº ÀýÆíµÎ²² 5-7§®¿Í À籸¼º°£°Ý 5-7§®·Î ÇÏ¿´´Ù. ¼ö¼úÀü ³ª¼±½Ä
CT¼Ò°ß¿¡ µû¸¥ ¸²ÇÁÀý º´±â°áÁ¤À» ÀüÇâÀûÀ¸·Î Æò°¡ÇÑ ´ÙÀ½, ¼ö¼ú ¹× º´¸®Àû º´±â¿Í ºñ±³ÇÏ
¿´´Ù. ¸²ÇÁÀý º´±â°áÁ¤Àº »õ·Î¿î TNM staging(UICC TNM classification. 1997)¿¡ µû¶ó, Àü
ÀÌµÈ ±¸¿ª¸²ÇÁÀýÀÇ ¼ö°¡ 1-6°³ÀÏ °æ¿ì¸¦ N1, 7-15°³ÀÏ °æ¿ì¸¦ N2, 16°³ÀÌ»óÀÏ °æ¿ì¸¦ N3·Î
Á¤ÇÏ¿´À¸¸ç, CT¼Ò°ß¿¡¼­ ¸²ÇÁÀýÀÇ ´ÜÃàÁ÷°æÀÌ 5§®ÀÌ»óÀ̰ųª, 5§®ÀÌÇÏÀÎ °æ¿ì¶óµµ ÇѺÎÀ§¿¡
¼­ ¹ÐÁýµÇ¾î ¿©·¯°³°¡ °üÂûµÉ °æ¿ì¸¦ ¸²ÇÁÀý ÀüÀÌ·Î ÆÇÁ¤ÇÏ¿´´Ù.
°á°ú : ÁøÇàÀ§¾ÏÀÇ ¼ö¼ú½Ã¿¡ ¸²ÇÁÀý °ûû¼ú¿¡ ÀÇÇØ ¸ðµÎ 1.334°³ÀÇ ¸²ÇÁÀýÀÌ Á¦°ÅµÇ¾ú°í, ÀÌ
Áß 352°³(26%)ÀÇ ¸²ÇÁÀý¿¡¼­ ÀüÀ̸¦ º¸¿´´Ù. »õ·Î¿î TNMºÐ·ù¿¡ µû¸¥ ¼ö¼úÀü ¸²ÇÁÀý º´±â
°áÁ¤À» Çϴµ¥ ÀÖ¾î ³ª¼±½Ä CTÀÇ Á¤È®µµ°¡ 55%(33/60)¿´°í, 15%(9/60)¿¡¼­ °úº´±â°áÁ¤À»
ÇÏ¿´À¸¸ç, 30%(18/60)¿¡¼­ Àúº´±â°áÁ¤À» ÇÏ¿´´Ù. ³ª¼±½Ä CT´Â 61%ÀÇ ¹Î°¨µµ¿Í 36%ÀÇ Æ¯
À̵µ¸¦ º¸¿´´Ù.
°á ·Ð : »õ·Î¿î TNM ºÐ·ù (UICC)¿¡ µû¸¥ À§¾ÏÀÇ ¼ö¼úÀü ¸²ÇÁÀý º´±â°áÁ¤À» Çϴµ¥ ÀÖ¾î
³ª¼±½Ä CTÀÇ Á¤È®µµ´Â, ¸²ÇÁÀýÀÇ Å©±â ¹× ¸ð¾ç¿¡ µû¸¥ Æò°¡±âÁØÀ» ³·Ãß¾î ÀüÀÌÀÇ °¡´É¼ºÀÌ
³ôÀº ÂÊÀ¸·Î Æò°¡ÇÏ¿´À½¿¡µµ ºÒ±¸ÇÏ°í, Áö±Ý±îÁöÀÇ º¸°íµé°ú ºñ±³ÇÏ¿© ´õ ³·°Ô Æò°¡µÇ¾ú´Ù.
ÀÌ´Â CT¼Ò°ß¿¡¼­ °üÂûµÇ´Â ¸²ÇÁÀýÀÇ ¼ö¿¡ µû¸¥ Æò°¡ÀÇ ¾î·Á¿òÀ» º¸ÀÎ °ÍÀ¸·Î »ý°¢µÇ¸ç, ¸²
ÇÁÀý ÀüÀÌ¿¡ ´ëÇÑ ´Ù°¢ÀûÀÎ Æò°¡¹æ¹ýÀ» ÅëÇÑ ¿¬±¸°¡ ÇÊ¿äÇÒ °ÍÀ¸·Î º»´Ù.
#ÃÊ·Ï#
Purpose : To evaluate preoperative N staging of advanced gastric cancer(AGC) using
helical CT according to the new TNM classification.
Materials and Methods : Helical CT findings of AGCs in N staging were prospectively
evaluated and correlated with pathologic staging in 60 patients with AGCs who
underwent surgery. In all patients, contrast-enhanced helical CT with 5-7§® since
thickness and 5-7§® reconstruction was performed after ingestion of 600-800§¢ of water.
A total of 150§¢ of contrast medium was administered intravenously at a rate of
4mL/sec and CT Scans were obtained 60 seconds after the initiation of intravenous
administration of contrast medium. CT nodal status was assessed according to the 1997
UICC/AJCC N staging system as: No, no lymph node metastatic; N1, 1-6 metastatic
regional lymph nodes; N2, 7-15 metastatic regional lymph nodes; N3, more than 15
metastatic regional lymph nodes at least 5mm in short-axis diameter or more than three
lymph nodes in a focal area(clustered appearance) regardless of size were interpretated
as positive for metastasis.
Results : Of the total 1,334 lymph nodes dissected, 352(26%) were positive for
metastasis. The sensitivity of helical CT scans in N staging of AGCs was 61%,
specificity was 36%, and overall accuracy was 55%(33 of 60 cases), Nine(15%) cases
were overstaged and 18(30%) were understaged.
Conclusion : our results indicate that the results of helical CT in preoperative N staging
of AGCs according to the new TNM classification showed no improvement despite the
application of favorable criteria for lymph node metastasis. Further evaluation using
various analytic approaches is necessary.

Å°¿öµå

Stomach neoplasms; Stomach CT; Lymphatic system neoplasms;

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