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±èÀº¿µ/Eun Young Kim À±½Âȯ/¹ÚÇö¼±/ÀÌÀϱÙ/ÀÓ¸í°ü/Á¶¿µ±¹/¹ÚÇüõ/Seung Hwan Yoon/Hyeon Seon Park/Il Keun Lee/Myung Kwan Lim/Young Kook Cho/Hyung Chun Park

Abstract

°á·Ð
1) ÃøµÎ¿± ÃÖÀü¹æ(temporal pole)¿¡¼­ Ãø³ú½Ç ÃøµÎ°¢ ÃÖÀü¸é±îÁöÀÇ °Å¸®´Â Æò±Õ 29.8¡¾
1.5mm(28.5¡­31mm)¿´´Ù.
2) Çظ¶Ã¼ ÃÖÀü¿¬Àº ¾È¹è(dorsum sella) Àü¹æ 1¡­3mm(Æò±Õ 1.8¡¾0.9mm)¿¡ À§Ä¡ÇÏ¿´´Ù Çظ¶
ü ÃÖÀü¿¬¿¡¼­ ´ë³ú°¢ÀÇ ÈÄ¿¬±îÁöÀÇ ±æÀÌ´Â Æò±Õ 25.6¡¾2.4mm·Î ÀϹÝÀûÀ¸·Î Çظ¶Ã¼ ÀýÁ¦¼ú
À» 25mmÁ¤µµ ½ÃÇàÇÑ´Ù°í º¼ ¶§ ¾È¹è¿Í ´ë³ú°¢ ÈÄ¿¬ÀÌ ÃøµÎ°¢ °³¹æ°ú Çظ¶ÀýÁ¦¼úÀÇ ±âÁØÁ¡
ÀÌ µÊÀ» ¾Ë ¼ö ÀÖ¾ú´Ù
3) Çظ¶Ã¼¸¦ ´ë³ú°¢ ÈÄ¿¬ºÎÀ§±îÁö ÀýÁ¦ÇÑ´Ù°í ÇÒ ¶§ ¿ÜÀ̵µÀü¹æºÎ¿Í ÈĹæºÎÀÇ ºñ°¡ 1.52 : 1
·Î ¿ÜÀ̵µ ÈĹæÀ¸·Î ¾à 10mm¸¦ Á¦°ÅÇØ¾ß ÃæºÐÇÑ Çظ¶Ã¼ ÀýÁ¦°¡ µÊÀ» ¾Ë ¼ö ÀÖ¾ú´Ù
4) ´ë³ú°¢°£ ³úÁ¶(interpeduncular cistern)¸¦ Áö³ª´Â °ü»ó¸é(coronal image)¿¡¼­ ÃøµÎ¿± ÃÖÃø
¸é¿¡¼­ °ç°í¶û(collateral sulcus)±îÁöÀÇ ±æÀÌ´Â ¾à 40.6¡¾3.3mm(37¡­45mm)¿´À¸¸ç, ´ë³ú°¢À»
Åë°úÇÏ´Â °ü»ó¸é¿¡¼­´Â 44¡¾2.3mm(40¡­47mm)·Î ÈĹæÀ¸·Î °¥¼ö·Ï °Å¸®°¡ Ä¿ÁüÀ» ¾Ë ¼ö ÀÖ
¾ú´Ù
5) ´ë³ú°¢°£ ³úÁ¶(interpeduncular cistern)¸¦ Áö³ª´Â °ü»ó¸é(coronal image)¿¡¼­ ÃøµÎ¿± Çϸé
¿¡¼­ ¸Æ¶ô¿­(choroidal fissure)±îÁöÀÇ ³ôÀÌ´Â 30¡¾1.7mm¿´À¸¸ç ¿ÜÀ̵µ(external auditary
meatus)¸¦ Áö³ª´Â °ü»ó¸é¿¡¼­´Â 21.3¡¾1.5mm¿´´Ù. ´ë³ú°¢°£ ³úÁ¶¸¦ Áö³ª´Â °ü»ó¸é¿¡¼­ Ãø
µÎ¿±³»¸éÀÌ Áߵΰ³¿Í¿Í ÀÌ·ç´Â °¢µµ´Â 45.7¡¾3.6µµ¿´À¸¸ç, ¿ÜÀ̵µ¸¦ Áö³ª´Â °ü»ó¸é¿¡¼­ ÃøµÎ
¿±³»¸éÀÌ Áߵΰ³¿Í¿Í ÀÌ·ç´Â °¢µµ´Â 33.2¡¾3.9µµ¿´´Ù.
ÀÌ»óÀÇ °á°ú·Î º¼ ¶§ ÀýÁ¦ÀÇ ´ë»óÀÌ µÇ´Â Çظ¶Ã¼´Â ¿ÜÀ̵µ¸¦ Áß½ÉÀ¸·Î ¾ÕµÚ·Î ¾à 1.5 : 1ÀÇ
ºñ·Î À§Ä¡ÇÏ°í ÀÖÀ¸¸ç µû¶ó¼­ ¼ö¼úÀû Á¢±Ù½Ã ¿ÜÀ̵µ°¡ ¼ö¼úÀû ÁöÇ¥°¡ µÊÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.
¿ÜÀ̵µ¸¦ Áß½ÉÀ¸·Î ÇÏ´Â Á¢±Ù¹ýÀ̳ª ¿ÜÀ̵µ Àü¹æ Á¢±Ù¹ý ¸ðµÎ ÃøµÎ¿±°ßÀÎÀ» ÃÖ¼ÒÈ­Çϱâ À§
Çؼ­ µÎ°³±âÀúÁ¢±Ù¼úÀÌ ÇÊ¿äÇÒ °ÍÀ¸·Î ÆǴܵǸç, ƯÈ÷ ¿ÜÀ̵µ Àü¹æÁ¢±Ù¹ý½Ã ÃøµÎ¿± °ßÀÎÀ»
´õ ¿äÇϹǷΠµÎ°³ÀúÁ¢±Ù¹ýÀÌ ÇÊ¿äÇÒ °ÍÀ¸·Î ÆǴܵȴÙ
#ÃÊ·Ï#
Although subtemporal amygdalohippocampectomy is the ideal approach for pure mesial
temporal lobe epilepsy from the view point that it can resect amygdala. hipocampusis,
and parahippocampal gyrus selectively. This approach has not gained wide popularity
due to shortcomings such as temporal lobe retraction and possible injury to temporal
lobe draining veins.
We analyzed surgical anatomy on MRI scan of 20 persons for the purpose of
modifying the subtemporal approach to overcome the inherent shortcomings. The
distance from temporal pole to anterior margin of temporal horn was 29.8¡¾1.5mm(range.
28.5-31mm). Anterior margin of hippocampus was located 1.8¡¾0.9mm(range. 1-3mm)
anterior to dorsum sella. The length of hippocampus. from anterior to the level of
posterior margin of cerebral External auditary meatus divided the hippocampus. from
anterior to the level of posterior margin of cerebral peduncle, in the ratio of 1.52:1. On
the coronal image through interpeduncular cistern, the distance between lateral margin of
temporal lobe and collateral sulcus was 40.6¡¾3.3mm(37-45mm). On the coronal image
through interpeduncular cistern and through the external auditary meatus, the height
from temporal base line and a line from collateral sulcus to choroidal fissure was 45.7¡¾
3.6 degree and 33.2¡¾3.9 degree. respectively. In conclusion, our results indicated that
external auditary meatus(EAM) is anatomical landmark for subtemporal
amygdalohippocampectomy, and skull base approach focused on either EAM or anterior
to EAM is necessary to minimize morbidity due to temporal lobe retraction and draining
vein injury.

Å°¿öµå

Epilepsy; Subtemporal selective amygdalohippocampectomy; MRI;

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