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The Usefulness of a Suspected Blood Identification System (SBIS) in Capsule Endoscopy according to Various Small Bowel Bleeding Lesions
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Abstract
¸ñÀû: ĸ½¶³»½Ã°æÀº ¿øÀÎ ºÒ¸íÀÇ À§Àå°üÃâÇ÷¿¡¼ À¯¿ëÇÑ °Ë»ç¹ýÀÌ´Ù. ±×·¯³ª °á°ú ºÐ¼®¿¡ ¸¹Àº ½Ã°£ÀÌ ¼Ò¿äµÇ´Â ´ÜÁ¡ÀÌ ÀÖ´Ù. ĸ½¶³»½Ã°æ ÆÇµ¶½Ã »ç¿ëµÇ´Â ÇÁ·Î±×·¥¿¡´Â Àû»öȼÒ(red spot)°¡ ÀÖ´Â ÇÁ·¹ÀÓ(frame)À» ÀÚµ¿À¸·Î ÀνÄÇÒ ¼ö ÀÖ´Â suspected blood identification system (SBIS)ÀÌ ÀÖ¾î ÆÇµ¶¿¡ µµ¿òÀ» ÁÖ°í ÀÖ´Ù. ÃÖ±Ù±îÁö SBIS´Â ³·Àº ¹Î°¨µµ¿Í ³·Àº ¾ç¼º ¿¹Ãøµµ¸¦ º¸ÀÎ´Ù°í ¾Ë·ÁÁ® ÀÖÁö¸¸ ±¹³» ÀÚ·á´Â ¾ø´Â ½ÇÁ¤ÀÌ´Ù. ÀÌ¿¡ ÀúÀÚµéÀº ¿øÀÎ ºÒ¸íÀÇ Çö¼º À§Àå°ü ÃâÇ÷ȯÀÚ¸¦ ´ë»óÀ¸·Î ½ÃÇàÇÑ Ä¸½¶³»½Ã°æ¿¡¼ º´º¯ÀÇ Æ¯¼º¿¡ µû¸¥ SBISÀÇ ¹Î°¨µµ ¹× À¯¿ë¼º À» ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.
´ë»ó ¹× ¹æ¹ý: 2003³â 3¿ùºÎÅÍ 2006³â 1¿ù±îÁö °í·Á´ëÇб³ ¾È¾Ïº´¿ø ¼Òȱ⺴¼¾ÅÍ¿¡¼ Ç÷º¯ ¹× Èæ»öº¯À» ÁÖ¼Ò·Î ³»¿øÇÑ È¯ÀÚµé Áß ¼ÒÀå ÃâÇ÷ º´º¯ÀÌ ÀǽɵǾî ĸ½¶³»½Ã°æÀ» ½ÃÇàÇÏ¿´´ø 95¸íÀ» ´ë»óÀ¸·Î ÇÏ¿´´Ù. µÎ ¸íÀÇ ³»½Ã°æ Àü¹®Àǰ¡ ÆÇµ¶ÇÑ ÈÄ SBISÀÇ °á°ú¿Í ºñ±³ ºÐ¼®ÇÏ¿´´Ù. Ç÷°üÀÌÇü¼ºÁõ, ±Ë¾ç, ¹Ì¶õ ¹× Ȱµ¿¼º ÃâÇ÷ º´º¯À» ÀÇ¹Ì ÀÖ´Â º´º¯À¸·Î °£ÁÖÇÏ¿´À¸¸ç, Ȱµ¿¼º ÃâÇ÷ º´º¯Àº ±âÀúÁúȯ¿¡ °ü°è¾øÀÌ ÃâÇ÷À» Çϰí Àְųª º´º¯¿¡ Ç÷ÈçÀÌ ³²¾Æ ÀÖ´Â °æ¿ì·Î ÇÏ¿´´Ù.
°á°ú: ³»½Ã°æ Àü¹®ÀÇÀÇ ÆÇµ¶ °á°ú 159°³ÀÇ º´º¯(14°³ÀÇ Ç÷°üÀÌ Çü¼ºÁõ, 90°³ÀÇ ±Ë¾ç¼º º´º¯, 55°³ÀÇ ¹Ì¶õ¼º º´º¯)ÀÌ ¹ß°ßµÇ¾úÀ¸¸ç, ÀÌÁß È°µ¿¼º ÃâÇ÷ º´º¯À¸·Î´Â Ç÷°üÀÌÇü¼ºÁõ 9°³, Ȱµ¿±â ±Ë¾ç 7°³¿´´Ù. SBIS¿¡¼´Â 71°³ÀÇ Àû»öÇ¥½Ã°¡ °üÂûµÇ¾ú´Ù. ³»½Ã°æ Àü¹®ÀÇÀÇ ÆÇµ¶ °á°ú¿Í ºñ±³ÇØ º¸¾ÒÀ» ¶§ 31°³ÀÇ º´º¯(9°³ÀÇ Ç÷°üÀÌÇü¼ºÁõ, 19°³ÀÇ È°µ¿±â ±Ë¾ç¼º º´º¯, 4°³ÀÇ ¹Ì¶õ¼º º´º¯)ÀÌ ÀÏÄ¡ÇÏ¿´´Ù. ÀÌÁß SBIS¿¡ ÀÇÇØ ¹ß°ßµÈ Ȱµ¿¼º ÃâÇ÷ º´º¯Àº Ç÷°üÀÌÇü¼ºÁõ 8°³, Ȱµ¿±â ±Ë¾ç 7°³¿´´Ù. ÀüüÀûÀÎ ¹Î°¨µµ¿Í ¾ç¼º ¿¹Ãøµµ´Â °¢°¢ 20%, 44%À̾ú´Ù. º´º¯ Ư¼º¿¡ µû¸¥ ¹Î°¨µµ´Â Ç÷°üÀÌÇü¼ºÁõ 57%, Ȱµ¿±â ±Ë¾ç 83%, ¹Ì¶õ¼º º´º¯ 7%¿´´Ù. ±×·¯³ª Ȱµ¿¼º ÃâÇ÷ º´º¯ÀÇ °æ¿ì¸¸À» ºÐ¼®ÇÏ¿´À» ¶§ ¹Î°¨µµ´Â 93%·Î ³ôÀº °á°ú¸¦ º¸¿´´Ù.
°á·Ð: À̹ø ¿¬±¸¿¡¼ Çö¼º À§Àå°ü ÃâÇ÷ȯÀÚ¸¦ ´ë»óÀ¸·Î ÇßÀ½¿¡µµ SBISÀÇ ÀüüÀûÀÎ ¹Î°¨µµ¿Í ¾ç¼º ¿¹Ãøµµ´Â ³·¾Ò´Ù. ±×·¯³ª º´º¯ÀÇ Æ¯¼º¿¡ µû¸¥ ¹Î°¨µµ´Â Ȱµ¿¼º ÃâÇ÷ º´º¯¿¡¼ ³ôÀº °á°ú¸¦ º¸¿´´Ù. SBIS´Â ĸ½¶³»½Ã°æ ÃÊ±â ÆÇµ¶½Ã ÃâÇ÷ º´º¯ÀÇ ¼±º°À» À§ÇÑ º¸Á¶ÀûÀÎ ¼ö´ÜÀ¸·Î ÀÌ¿ëµÇ¾î¾ß Çϸç, Àû»öȼҰ¡ ¹ß°ßµÇÁö ¾ÊÀ» ¶§ ÃâÇ÷ÀÌ ¾ø´Ù°í ¸»ÇÒ ¼ö ¾øÀ¸¹Ç·Î ĸ½¶³»½Ã°æ ±â·ÏÀ» ÀüºÎ ÆÇµ¶ÇÏ´Â °ÍÀ» °£°úÇØ¼´Â ¾ÈµÉ °ÍÀ¸·Î »ý°¢ÇÑ´Ù.
Background/Aims: Substantial time and attention are required to read and interpret the recordings of capsule
endoscopic images. A suspected blood identification system (SBIS) has been developed to assist in the reading of capsule images. This software automatically marks ¡°red tags¡± that correlate with suspected blood or red areas.
However, the sensitivity and accuracy of the system have not been well characterized. We investigated the usefulness
of the SBIS in capsule endoscopy according to various small bowel bleeding lesions.
Methods: Two expert endoscopists reviewed the capsule images. Angiodysplasias, ulcers and erosion were considered as significant lesions, and active bleeding lesions were considered when bleeding or blood clots were seen in the capsule images. The red tags that were automatically marked by the use of the rapid software were compared to the significant lesions reviewed by the endoscopists.
Results: A total of 95 patients were enrolled in the study. The endoscopists identified 159 significant lesions and 71 lesions marked by red tags were identified by the SBIS. Among the 71 lesions, 31 lesions correctly coincided with the significant lesions. The overall sensitivity and positive predictive value of the use of the SBIS were 20% and 44%, respectively. The sensitivities of active ulcers and active bleeding lesions were 83% and 93%, respectively.
Conclusions: The SBIS should be considered as a rapid screening tool to identify active bleeding lesions, and a complete
review of capsule images by a physician is still needed.
(Korean J Gastrointest Endosc 2008;37:253-258)
Ű¿öµå
ĸ½¶³»½Ã°æ, ¿øÀÎ ºÒ¸íÀÇ À§Àå°ü ÃâÇ÷
Suspected Blood Identification System (SBIS), Capsule endoscopy, Suspected blood identification system, Obscure overt gastrointestinal bleeding
KMID :
0359020080370040253
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À¯È¿¼º°á°ú(Recomendation)
The overall sensitivity and positive predictive value of the use of the SBIS were 20% and 44%, respectively. The sensitivities of active ulcers and active bleeding lesions were 83% and 93%, respectively.