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Abstract

¸ñ Àû : ³ª¼± CTÀÇ °¢½Ã±â¿¡¼­ Á¤»ó ÃéÀå½ÇÁú°ú ÁÖº¯ Ç÷°üÀÇ Á¶¿µÁõ°­ Á¤µµ¸¦ Á¤·®ÀûÀ¸·Î
¿¬±¸ÇÏ¿© ÃéÀå °Ë»ç¿¡ °¡Àå ÀûÇÕÇÑ ½Ã±â¸¦ ¾Ë¾Æ º¸°íÀÚ ÇÏ¿´´Ù.
´ë»ó ¹× ¹æ¹ý : ÀÌÁ߽ñâ¿Í »ïÁ߽ñ⠺¹ºÎ ³ª¼± CT¸¦ ½ÃÇàÇÏ¿´´ø 180¸í (ÀÌÁ߽ñâ 90¸í,
»ïÁ߽ñâ 90¸í)ÀÇ È¯ÀÚ¸¦ ´ë»óÀ¸·Î ÇÏ¿´´Ù. ÀÌÁ߽ñ⠳ª¼± CT´Â 120mlÀÇ Á¶¿µÁ¦¸¦ÃÊ´ç3ml
ÀÇ ¼Óµµ·Î ÁÖÀÔÈÄ 43ÃÊÈÄ¿¡ Á¶±â¿µ»ó°ú 5-6ºÐÈÄ¿¡ Áö¿¬±â¿µ»óÀ» ¾ò¾ú°í, »ïÁ߽ñ⠳ª¼± CT
´Â 120-140mlÀÇ Á¶¿µÁ¦¸¦ ÃÊ´ç 2-4mlÀÇ ¼Óµµ·Î ÁÖÀÔÈÄ 25ÃÊÈÄ¿¡ µ¿¸Æ±â¿µ»óÀ», 60-65ÃÊ ÈÄ
¿¡ ¹®¸Æ±â¿µ»óÀ», 5-6ºÐÈÄ¿¡ Áö¿¬±â¿µ»óÀ» ¾ò¾ú´Ù. ÀÌ È¯ÀÚÁß 10¿¹¿¡¼­ Á¶¿µÀü ¿µ»óÀ» ¾ò¾ú
´Ù. ÃéÀåÀÇ µÎºÎ, üºÎ, ¹ÌºÎÀÇ Èí¼ö°¨¾à°è¼ö¿Í, ÃéÀåüºÎ À§Ä¡¿¡¼­ º¹°­µ¿¸Æ ±â½ÃºÎÀÇ ´ëµ¿
¸Æ°ú ÁÖ°£¹®¸ÆÀÇ Èí¼ö°¨¾à°è¼ö¸¦ ÃøÁ¤ÇÏ¿© °¢ ºÎÀ§¿¡¼­ ½Ã±âº° Á¶¿µÁõ°­ Á¤µµ¸¦ ¾Ë¾Æº¸¾Ò
°í, Á¶¿µÁ¦ÀÇ ÃÑ·®°ú ÃÊ´ç ÁÖÀÔ¾çÀÇ Â÷ÀÌ°¡ ÃéÀå½ÇÁú ¹× ÁÖº¯ Ç÷°üÀÇ Á¶¿µÁõ°­¿¡ ¹ÌÄ¡´Â ¿µ
ÇâÀ» ¾Ë¾Æº¸¾Ò´Ù.
°á °ú : ÃéÀåÀÇ µÎºÎ, üºÎ ¹ÌºÎ»çÀÌ¿¡´Â Åë°èÇÐÀûÀ¸·Î ÀÇ¹Ì ÀÖ´Â Á¶¿µÁõ°­ÀÇ Â÷ÀÌ°¡ ¾ø¾ú
´Ù(p>0.05). ÃéÀåÀº 43ÃÊ Á¶±â¿µ»ó¿¡¼­ °¡Àå ³ôÀº Èí¼ö°¨¾à°è¼ö¸¦ ³ªÅ¸³»¾ú°í(132¡¾20HU)
(p<0.05), ´ëµ¿¸ÆÀº 25ÃÊ µ¿¸Æ±â¿µ»ó¿¡¼­ °¡Àå ³ôÀº Èí¼ö°¨¾à°è¼ö¸¦ ³ªÅ¸³»¾úÀ¸³ª (269¡¾
74HU), °¡Àå ±ÙÁ¢ÇÑ °ªÀ» °®´Â 43ÃÊ Á¶±â ¿µ»ó°ú Åë°èÇÐÀûÀ¸·Î ÀǹÌÀÖ´Â Â÷ÀÌ´Â ¾ø¾ú´Ù
(p<0.05). ÁÖ°£¹®¸Æµµ 43ÃÊ Á¶±â¿µ»ó¿¡¼­ °¡Àå ³ôÀº Èí¼ö°¨¾à°è¼ö¸¦ ³ªÅ¸³»¾ú´Ù(269¡¾74HU)
(p<0.05). »ïÁ߽ñ⠳ª¼± CT¿¡¼­ Á¶¿µÁ¦ÀÇ ÃÑ·®À» ´Þ¸®ÇÑ °æ¿ì¿¡´Â ÃéÀå ¹× ÁÖº¯Ç÷°üÀÇ Á¶
¿µÁõ°­ Á¤µµÀÇ Â÷ÀÌ´Â ¾ø¾ú´Ù(p>0.05). »ïÁ߽ñ⠳ª¼± CT¿¡¼­ ÃÊ´ç ÁÖÀÔ¼Óµµ¸¦ ´Þ¸®ÇÑ °æ¿ì
¿¡´Â ÁÖÀÔ¼Óµµ°¡ Áõ°¡ÇÒ¼ö·Ï ÃéÀå½ÇÁú ¹× ÁÖº¯ Ç÷°üÀÌ ´õ ºü¸¥ ½Ã±â¿¡ Á¶¿µÁõ°­ µÇ´Â °á°ú
¸¦ º¸¿´´Ù(p<0.05).
°á ·Ð : 120-140mlÀÇ ºñÀ̿¼º Á¶¿µÁ¦¸¦ ÃÊ´ç 2-4mlÀÇ ¼Óµµ·Î ÁÖÀÔÇÑ ÈÄ ¿µ»óÀ» ¾ò´Â º¹
ºÎ ³ª¼± CTÀÇ ÀϹÝÀûÀÎ ÇÁ·ÎÅäÄÝÀ» »ç¿ëÇÑ °æ¿ì¿¡ ÃéÀå ¹× ÁÖº¯ Ç÷°üµéÀº 43ÃÊ Á¶±â ¿µ»ó
¿¡¼­ °¡Àå Àß Á¶¿µÁõ°­µÇ¾úÀ¸¸ç, Á¶¿µÁ¦ÀÇ ÃÊ´ç ÁÖÀÔ¾çÀ» ³ôÀÌ´Â °æ¿ì Á¶¿µÁ¦ ÁÖÀÔÈÄ ÃÔ¿µ
Áö¿¬ ½Ã°£À» º¸´Ù ª°Ô ÇÏ¿©¾ß ÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.
#ÃÊ·Ï#
Purpose : To determine by quantitative evaluation of pancreatic and adjacent vascular
enhancement during spiral CT, the ideal scan delay for examination of the pancreas.
Materials and Methods : Dual(n=90) and triple(n=90) phase spiral CT scans of patients
whose pancreas showed no pathologic condition were retrospectively evaluated.
Dual-phase scans were performed at 43 seconds (early), and 5-6 minutes(delayed) after
the injection of 120ml of contrast material at an injection rate of 3ml/sec ; triple-phase
scand were performed at 25 seconds(arterial), 60-65 seconds (portal) and 5-6 minutes
(delayed) after the injection of 120-140ml of contrast material at an injection rate of
2-4ml/sec, and ten patients also underwent precontrast scanning. CT attenuation values
(HU) were measured in the head, body and tail of the pancreas, aorta, and main portal
vein during each phase of all scans. Triple-phase protocol was used to measure the
effect of different total volumes and injection rates on enhancement of the pancreas and
adjacent vessels.
Results : There was no significant difference in the degree of enhancement of the
pancreas head, body and tail during each phase(p>0.05). The pancreas was maximally
enhanced on 43 second delayed scan(132¡¾20HU)(p<0.05), and the aorta, on 25-second
delayed scan(269¡¾74HU), but there was no significant difference between this
enhancement and that seen at 43 seconds(p>0.05). The main portal vein showed
maximum enhancement on 43-second delayed scan(207¡¾44HU)((p<0.05). Different total
volume of contrast material did not change the enhancement of the pancreas and
adjacent vessels. At an injection rate of 2ml/sec, peak enhancement of the pancreas,
aorta and portal vein was obtained on 60-65 second delayed scan, and at 4ml/sec, peak
was obtained on 25 second delayed scan(p<0.05).
Conclusion : Observing the usual protocols for abdominal spiral CT scanning, the
pancreas was most effectively evaluated using a 43-second delayed scan. An increased
injection rate resulted in earlier enhancement of the pancreas, aorta and portal vein.

Å°¿öµå

Computed tomography(CT); helical; Computed tomography(CT); contrast enhancement; Pancreas; CT;

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