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[ColonTODAY 090 - ´ëÀå image-enhanced endoscopy (IEE)]

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Image-enhanced endoscopy (IEE)
Conventional chromoendoscopyVirtual chromoendoscopy
Dye-basedEquipment-based
Contrast: indigocarmine
Absorptive: crystal violet
Optical: NBI (Olympus)
Electronic: FICE, i-scan (Pentax)
Others: BLI, LCI (Fujifilm)
Pit patternCapillary pattern

»ö¼Ò³»½Ã°æÀ» ÀÌ¿ëÇÑ Kudo ºÐ·ù´Â pit patternÀ» º¸´Â °ÍÀÌ°í, NBI µîÀ» ÀÌ¿ëÇÑ Sano ºÐ·ù´Â capillary patternÀ» º¸´Â °ÍÀÔ´Ï´Ù. Hiroshima, NICE, JNETÀº capillary patternÀ» ÁÖ·Î º¸¸é¼­ surface patternÀ» Á¶±Ý ÂüÁ¶ÇÏ´Â ¹æ¹ýÀÔ´Ï´Ù.

Pit´Â intestinal glandÀÇ openingÀÔ´Ï´Ù. IndigocarmineÀ» ºÐ¹«Çϸé dye°¡ pit¿¡ °íÀ̹ǷΠpit°¡ °Ë°Ô º¸ÀÔ´Ï´Ù. Crystal violet ¿°»öÀ» Çϸé pit ÁÖº¯ »óÇǼ¼Æ÷ÀÇ ÇÙÀÌ ¿°»öµÇ¹Ç·Î pit ÀÚü´Â ÇϾé°Ô º¸ÀÔ´Ï´Ù.


[Conventional IEE (pit pattern)]

Kudo ºÐ·ù.

Hyperplastic polypÀ̳ª serrated polyp¿¡¼­´Â crypt »óºÎ Àý¹ÝÀÌ serration µÇ¸é¼­ ÇϺΰ¡ È®´ëµÇ±â ¶§¹®¿¡ pitÀÇ º¯È­°¡ ¿É´Ï´Ù.


[Equipment-base IEE]

»ö¼Ò ºÐ¹« ÈÄ È®´ë³»½Ã°æ ¼Ò°ßÀÎ pit patternÀº ÀÏÂïºÎÅÍ Kudo ºÐ·ù·Î ÅëÀϵǾú½À´Ï´Ù. ¹Ý¸é, NBI¸¦ ÀÌ¿ëÇÑ ´ëÀå³»½Ã°æ È®´ë³»½Ã°æ ¼Ò°ß¿¡ ´ëÇؼ­´Â ¸Å¿ì ¸¹Àº ºÐ·ù¹ýÀÌ ³­¸³ÇÏ¿´½À´Ï´Ù (Utsumi T. Clin Endosc 2015). ¸¶Ä§³» 2016³â ¿©¸§ JNET ºÐ·ù°¡ ³ª¿À¸é¼­ ÃÑÁ¤¸®µÇ´Â ºÐÀ§±âÀÔ´Ï´Ù (Sano Y. Digest Endosc 2016).

Sano ºÐ·ù. Capillary pattern¸¸ °üÂûÇϹǷΠºñ±³Àû °£´ÜÇÑ ºÐ·ùÀÔ´Ï´Ù. ±×·¯³ª Sano ºÐ·ù´Â È®´ë³»½Ã°æ °üÂûÀ» ÀüÁ¦·Î Àû¿ëÇÏ´Â ¹æ¹ýÀÔ´Ï´Ù.

NICE ºÐ·ù. Capillary patternÀ» ÁÖ·Î º¸¸é¼­ »öÁ¶³ª surface patternÀ» °üÂûÇÏ´Â ¹æ¹ýÀÔ´Ï´Ù. NICE II´Â Sano II-IIIA¿Í ºñ½ÁÇÏ°í NICE III´Â Sano IIIB¿Í ºñ½ÁÇÕ´Ï´Ù. Sano capillary pattern classificationÀº È®´ë³»½Ã°æÀ» ÀüÁ¦·Î Àû¿ëÇÑ °ÍÀÎ ¹Ý¸é, NICE ºÐ·ù´Â È®´ë³»½Ã°æÀÌ ¾Æ´Ñ ÀÏ¹Ý ³»½Ã°æÀ» ÀüÁ¦·Î ¸¸µé¾îÁø ¹æ¹ýÀÔ´Ï´Ù.

JNET ºÐ·ù. NICE II¸¦ JNET 2A, 2B·Î ³ª´« °ÍÀ¸·Î ÀÌÇØÇÏ¸é µÇ°Ú½À´Ï´Ù.

Depth of invasion °üÂû¿¡´Â equipment-base IEE (Sano, NICE, JNET ºÐ·ù)º¸´Ù »ö¼Ò³»½Ã°æ ÈÄ È®´ë³»½Ã°æÀ¸·Î °üÂûÇÑ pit pattern ºÐ·ù°¡ ¿ì¿ùÇÑ °ÍÀ¸·Î ÀÎÁ¤µÇ°í ÀÖ½À´Ï´Ù. µû¶ó¼­ three step strategy¶ó´Â °ÍÀÌ Á¦¾ÈµÇ¾ú½À´Ï´Ù. °£´ÜÈ÷ ¸»ÇÏÀÚ¸é ÀÏ¹Ý ³»½Ã°æ(white light endoscopy)¿¡¼­ ÀÌ»ó ¼Ò°ßÀÌ º¸À̸é equipment-based IEE¸¦ Àû¿ë(°¡Àå °£´ÜÇÑ °ÍÀºNBI¸¦ ÄÑ´Â °ÍÀÔ´Ï´Ù)ÇÏ°í ¾È ÁÁÀº ¼Ò°ßÀÌ º¸À̸é pit patternÀ» º¸±â À§ÇÏ¿© crystal violet ¿°»ö ¹× È®´ë³»½Ã°æÀ» ÇÏ´Â °ÍÀÔ´Ï´Ù.

Three step strategy.


[References]

1) NBI magnifying endoscopic classification of colorectal tumors proposed by the Japan NBI Expert Team. Sano Y. Digest Endosc 2016 (PDF)

2) 2017³â 5¿ù 20ÀÏ ³»½Ã°æ±â±â/½ºÅÙÆ®¿¬±¸È¸ ½ÉÆ÷Áö¾ö (±×·£µå¾Ú¹è¼­´õÈ£ÅÚ)

© ÀÏ¿ø³»½Ã°æ±³½Ç ¹Ù¸¥³»½Ã°æ¿¬±¸¼Ò ÀÌÁØÇà. EndoTODAY Endoscopy Learning Center. Lee Jun Haeng.