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±èÀ¯°æ/Yoo Kyung Kim ¹é½Â±¹/½Å¹ÌÁ¤/ÃÖÇÑ¿ë/Seung Kug Baik/Mi Jeong Shin/Han Yong Choi

Abstract

¸ñÀû:³úµ¿¸Æ·ùÀÇ Ä¡·á¿¡ À־ °¡Àå Áß¿äÇÑ ¿ä¼ÒÁß ÇϳªÀÎ ³úµ¿¸Æ·ù °æºÎÀÇ ¸ð¾çÀ» CT Ç÷°ü
Á¶¿µ¼ú(CT angiography,CTA)À» ÀÌ¿ëÇÏ¿© Æò°¡ÇÏ°í µðÁöÅа¨»êÇ÷°üÁ¶¿µ¼ú(Digital Subtraction
Angiography,DSA)°ú ºñ±³ÇÏ°íÀÚ ÇÏ¿´´Ù.
´ë»ó°ú ¹æ¹ý:³úÁöÁÖ¸·ÇÏÃâÇ÷ÀÌ ÀÖ¾î ³úµ¿¸Æ·ù°¡ ÀǽɵǾî DSA¸¦ ½ÃÇàÇÑ 19¸íÀÇ È¯ÀÚ¿¡¼­ 23
¿¹ÀÇ ³úµ¿¸Æ·ù¸¦ ´ë»óÀ¸·Î ÇÏ¿´´Ù.CTA´Â ´ÙÀýÆí(Multislice)CT¸¦ ÀÌ¿ëÇÏ¿© ½ºÄµÇÑ ÈÄ
SSD(Shaded Surface Display)±â¹ýÀ» ÀÌ¿ëÇÏ¿© ¿µ»óÀ» À籸¼ºÇÑ ÈÄ,ÀÓÀÇÀûÀÎ Àý´Ü ¿µ»óÀ» ¾ò
°í,MPR(Multiplanar Reformatting)±â¹ýÀ» ÷°¡ÇÏ¿© Æò¸é¿µ»óÀ» ¾ò¾ú´Ù.À籸¼ºÇÑ ¿µ»óÀº ³ú
µ¿¸Æ·ùÀÇ °æºÎ¸¦ ºÐ¼®Çϱâ À§ÇØ 4°³ÀÇ ¿µ»ó Áï ¿ÜºÎ¿µ»ó,¸ðµ¿¸Æ ¹æÇâ¿¡¼­ÀÇ ³»ºÎ¿µ»ó,µ¿¸Æ·ù
ÀÇ µ¼ ¹æÇâ¿¡¼­ÀÇ ³»ºÎ¿µ»ó,µ¿¸Æ·ùÀÇ ´Ü¸é¿µ»óÀ» ¾ò¾î ³úµ¿¸Æ·ùÀÇ °æºÎ¸¦ ºÐ¼®ÇÏ°í DSA¿Í ºñ±³ÇÏ¿´´Ù.
°á°ú:23¿¹ÀÇ ³úµ¿¸Æ·ùÀÇ Å©±â´Â 0-12 mm°¡ 20¿¹,12-24 mm°¡ 3¿¹ ¿´À¸¸ç,³úµ¿¸Æ·ùÀÇ °æ
ºÎÀÇ Å©±â´Â Á¼Àº °æ¿ì°¡ 11¿¹,³ÐÀº °æ¿ì°¡ 9¿¹,µ¿¸Æ·ùÀÇ °æºÎÀÇ Å©±â´Â Á¼Áö¸¸ µ¿¸Æ·ùÀÇ Å©
±â¿Í ºñ±³Çؼ­ »ó´ëÀûÀ¸·Î ³ÐÀº °æ¿ì°¡ 3¿¹ À̾ú´Ù.³ÐÀº °æºÎ ³úµ¿¸Æ·ù 9¿¹Áß 6¿¹¿¡¼­´Â DSA
¿Í ºñ±³½Ã CTAÀÇ ¿µ»óÀÌ ³úµ¿¸Æ·ùÀÇ °æºÎ ºÐ¼®¿¡ µµ¿òÀÌ µÇ¾ú°í,ƯÈ÷ ³ÐÀº °æºÎ ³úµ¿¸Æ·ùÁß
¿¡¼­µµ Å©±â°¡ Å« °æ¿ì¿¡ À־´Â 3¿¹ ¸ðµÎ¿¡¼­ CTA·ÎÀÇ ºÐ¼®ÀÌ µµ¿òÀ» ÁÖ¾ú´Ù.³úµ¿¸Æ·ùÀÇ
°æºÎ°¡ Á¼Àº °æ¿ì¿¡´Â 11¿¹Áß 8¿¹¿¡¼­,µ¿¸Æ·ùÀÇ °æºÎÀÇ Å©±â´Â Á¼Áö¸¸ µ¿¸Æ·ùÀÇ Å©±â¿Í ºñ±³
Çؼ­ »ó´ëÀûÀ¸·Î ³ÐÀº °æ¿ì¿¡´Â 3¿¹ ¸ðµÎ¿¡¼­ DSA¿Í CTA¿¡¼­ °æºÎÀÇ Å©±â¸¦ ºñ±³ÇÔ¿¡ ÀÖ¾î
¼­ Â÷ÀÌÁ¡Àº ¾ø¾ú´Ù.³úµ¿¸Æ·ù °æºÎ¸¦ Æò°¡Çϴµ¥ À־,23¿¹Áß 14¿¹¿¡¼­´Â ³×°¡Áö ¿µ»óÁß
¿¡¼­ ¸ðµ¿¸Æ ¹æÇâ¿¡¼­ÀÇ ³»ºÎ¿µ»ó¿¡¼­ °æºÎ°¡ °¡Àå Àß º¸¿´À¸¸ç,6¿¹¿¡¼­´Â ¸ðµ¿¸Æ ¹æÇâ¿¡¼­
ÀÇ ³»ºÎ¿µ»ó°ú ³úµ¿¸Æ·ù ´Ü¸é¿µ»ó µÎ ¿µ»ó¿¡¼­ ¸ðµÎ ºñ½ÁÇÑ Á¤µµ·Î ¿ì¼öÇÑ °á°ú¸¦ º¸¿´´Ù.³Ð
Àº °æºÎ ³úµ¿¸Æ·ù °æ¿ì¿¡´Â 9¿¹Áß 7¿¹¿¡¼­ ³× °¡ÁöÀÇ ³»ºÎ¿µ»ó Áß¿¡¼­ ¸ðµ¿¸Æ¹æÇâ¿¡¼­ÀÇ ³»ºÎ
¿µ»óÀÌ ³úµ¿¸Æ·ùÀÇ °æºÎ¿Í ¸ðµ¿¸Æ°úÀÇ °ü°è¸¦ ºÐ¼®Çϴµ¥ °¡Àå µµ¿òÀÌ µÇ¾ú´Ù.2¿¹¿¡¼­´Â ¸ð
µ¿¸Æ°ú ³úµ¿¸Æ·ù ¾È¿¡ ¼®È¸È­°¡ ÀÖ¾ú´Âµ¥,³»ºÎ¿µ»óÀ¸·Î °æºÎÀÇ ºÐ¼®ÀÌ ´Ù¼Ò ¾î·Á¿ü´Ù.
°á·Ð:³ÐÀº °æºÎ ³úµ¿¸Æ·ùÀÇ Æò°¡¿¡ À־ DSAº¸´Ù CTA°¡ ´Ù¼Ò ¿ì¿ùÇÑ °ÍÀ¸·Î Æò°¡µÇ¾ú°í,
DSA¿¡¼­ °æºÎ ºÐ¼®ÀÌ Èûµç ³úµ¿¸Æ·ùÀÇ °æ¿ì¿¡´Â CTA¸¦ Ãß°¡ÀûÀ¸·Î ÃÔ¿µÇÏ¿© ÀÔ±¸¸¦ Æò°¡ÇÏ
´Â °ÍÀÌ ³úµ¿¸Æ·ùÀÇ ¼ö¼úÀû Ä¡·á»Ó¸¸ ¾Æ´Ï¶ó ÁßÀçÀû Ç÷°ü³» Ä¡·á¿¡µµ µµ¿òÀ» ÁÙ °ÍÀ¸·Î »ý°¢µÈ´Ù.

Purpose: To compare the usefulness of three-dimensional multislice CT angiography(CTA) and digital subtraction angiography (DSA) in the evaluation of intracranial aneurysmal neck.
Materials and Methods: Nineteen patients with intracranial aneurysm (23 cases) underwent DSA and subse-quent CTA. Using a multislice CT scanner and the SSD(shaded surface display) technique, clipping, cutting and the MPR technique,
three-dimensional
images were obtained. These were (a) external, (b) internal, from the direction of the parent artery, (c) internal, from the direction of the aneurysmal dome, and (d) an aneurys-mal cutting image. The CTA findings were retrospectively compared
with
the
DSA images.
Results: Twenty aneurysms were small and three were large. In eleven cases aneurysm neck was small, in nine it was wide, and in three it was relatively wide. For aneurysnal neck evaluation, CTA was superior to DSA in six of nine wide-neck
aneurysms
and
all three large-sized wide-neck aneurysms. In small neck aneurysms 8 of 11 cases and in relatively wide neck all 3 cases showed similarly good images by both modali-ties. Of the 23 cases demonstrated by four different images, 14 cases showed the
best
image in internal image from parent artery direction and 6 cases showed similarly good image in both aneurysmal cutting image and internal image from parent artery direction. In the evaluation of wide neck aneurysms, 7 of 9 cases showed the best
image
at internal image from parent artery direction, compared with other three different images. In two cases of aneurysms, calcification was visible in the aneurysmal wall, so it was difficult to evaluate the aneurysmal neck.
Conclusion: CTA was superior to DSA in the evaluating the intracranial aneurysmal neck. CTA maybe an ad-ditional available modality to evaluate the aneurysmal neck which is difficult to detect by the DSA. And the information of intracranial
aneurysmal
neck through CTA will be of value in surgical and endovascular treatment.

Å°¿öµå

Computed tomography(CT); angiography; Aneurysm; cerebral;

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