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°¡Åä¿¡¼­ ½ÇÇèÀûÀ¸·Î À¯¹ßµÈ °â»ó »ç±¸Ã¼ ½Å¿°¿¡ °üÇÑ Gd-DTPA Á¶¿µ Áõ°­ ÈÄÀÇ ¿ªµ¿Àû ½Å ÀÚ±â°ø¸í¿µ»ó Gd-DTPA Enhanced Dynamic Renal MR Imaging of Experimentally Induced Crescentic Glomerulonephritis in Rabbits

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Abstract

¸ñ Àû : °â»ó(ÌÇßÒ) »ç±¸Ã¼½Å¿° (crescentic glomerulonephritis, ÀÌÇÏ CGN)À» °¡Åä¿¡¼­ ½Ç
ÇèÀûÀ¸·Î À¯¹ß½ÃŲ ÈÄ Gd-DTPA Á¶¿µÁõ°­ ¿ªµ¿Àû ÀÚ±â°ø¸í¿µ»ó(dynamic magnetic
resonance image, ÀÌÇÏ DMRI) °Ë»ç¸¦ ½ÃÇàÇÏ¿©, DMRI·Î ÀÌ ÁúȯÀÇ Á¶±âÁø´Ü ¹× ÁøÇà°úÁ¤
À» ÃßÁ¤ÇÒ ¼ö ÀÖ´ÂÁö ±× À¯¿ë¼º¿¡ ´ëÇØ ¾Ë¾Æº¸¾Ò´Ù.
´ë»ó ¹× ¹æ¹ý : Ç׻籸ü ±âÀú ¸· Ç×ü·Î 6¸¶¸®ÀÇ °¡Åä¿¡¼­ CGNÀ» À¯¹ß ½ÃŲÈÄ ¹ßº´ Àü,
¹ßº´ 1ÀÏ, 4ÀÏ, 7ÀÏ, 15ÀÏ, 45ÀÏ ±×¸®°í 113ÀÏ¿¡ º´¸®Á¶Á÷ÇÐÀû º¯È­¸¦ ¾Ë±âÀ§ÇØ ¿¬¼ÓÀûÀ¸·Î
ºÎºÐÀû ½ÅÁ¶Á÷ »ý°Ë ¹× Ç÷û Å©·¹¾ÆƼ´ÑÀÇ ¾çÀ» ÃøÁ¤ÇÏ¿´´Ù. µ¿½Ã¿¡ DMRI(1.0T)¿Í ½Ã°£ ½Å
È£°­µµ °î¼±(time-signal intensity curve, ÀÌÇÏ TSC)À» ¾ò¾î ºñ±³ ºÐ¼®ÇÏ¿´´Ù.
°á °ú : Á¤»ó °¡ÅäÀÇ DMRI´Â ½ÅÇÇÁú°ú ¿Ü¼öÁúÀÇ °æ°è¸é¿¡ ¼¼´¢°ü³»ÀÇ ³óÃàµÈ Gd-DTPA
Áï ¾ã°í °ËÀº ¶ì°¡ Çü¼ºµÈ ÈÄ ±¸½É¼ºÀ¸·Î À̵¿ÇÏ´Â ¾ç»óÀ» ³ªÅ¸³»¾ú´Ù. CGN ¹ßº´ 1, 4ÀÏ¿¡
´Â ¾ã°í °ËÀº¶ì´Â ³ªÅ¸³ªÁö¸¸ ¼±¸íµµ°¡ ¸Å¿ì ¶³¾îÁ³´Ù. TSC´Â ÃÖ°í ½ÅÈ£ °­µµ¿¡ À̸£´Â ½Ã
°£ÀÌ ¾à°£ Áö¿¬µÇ¾ú´Ù. 7, 15ÀÏ¿¡´Â Èñ¹ÌÇÑ °ËÀº ¶ì°¡ º¸¿´À¸³ª ½Ã°£ÀÌ ¿ª½Ã Áö¿¬µÇ¾ú°í, °Ë
Àº ¶ìÀÇ ±¸½É¼º À̵¿Àº °üÂûÇÒ ¼ö ¾ø¾úÀ¸¸ç, TSC¿¡¼­´Â ÃÖ´ë ½ÅÈ£°­µµ°¡ ¶³¾îÁö°í Èı⿡
¼­ °î¼±ÀÇ ´À¸° ÇÏ°­À» º¼ ¼ö ÀÖ¾ú´Ù. 45, 113ÀÏ CGNÀÇ DMRI¿¡¼­´Â °ËÀº ¶ìÀÇ ÃâÇöÀÌ ¸Å
¿ì ¹Ì¾àÇÏ¿´°í, ±¸½É¼º À̵¿µµ °üÂûÇÒ ¼ö ¾ø¾úÀ¸¸ç, TSC´Â ÃÖ´ë ½ÅÈ£°­µµ¿¡ À̸£´Â ½Ã°£ÀÌ
¿ª½Ã Áö¿¬µÇ°í, ÃÖ´ë½ÅÈ£ °­µµ¿¡ µµ´ÞÇÑ ÈÄ ¸Å¿ì ´À¸° ¼Óµµ·Î ¶³¾îÁö´Â ¼Ò°ßÀ» º¸¿´´Ù.
°á ·Ð : Gd-DTPA¸¦ ÀÌ¿ëÇÑ DMRI´Â CGNÀÇ ÁøÇà°úÁ¤ ¹× ¼Õ»óµÈ ½Å±â´ÉÀ» Æò°¡ÇÒ ¼ö ÀÖ
´Â À¯¿ëÇÑ °Ë»ç ¹æ¹ýÀ¸·Î »ý°¢µÈ´Ù.
#ÃÊ·Ï#
Purpose : The purpose of this study was to evaluate the utility of G4-DTPA-enhanced
dynamic MRI (DMRI) in early diagnosis and the assessment of disease processing in
experimentally induced crescentic glomerulonephritis (CGN) in rabbits.
Materials and Methods : In six rabbits, CGN was induced by an injection of
anti-glomerular basement membrane Ab. A time-signal intensity curve (TSC) was
obitained from DMRI on the day before, and at 1, 4, 7, 15, 45 and 113 days after the
induction of CGN. Sequential renal biopsies and TSC, were compared.
Results : In normal kidneys, sequential DMRI demonstrated the intratubular passage of
Gd-DTPA as an inwardly migrating, thin, dark, band pattern. On days 1 and 4, the thin
dark band appeared but was defined and TSC revealed a delay in peak time. On days 7
and 15, movement of the band was seen to be weak and slow, and there was no
centripetal migration. The maximal signal intensity of TSC was delayed, and the curves
declined very slowly. On days 45 and 113, the dark band pattern was very weak and
slow, and again there was no centripetal migration.
Conclusion : GD-DTPA-enhanced DMRI may be of value in the evaluation of disease
processing and the severity of CGN.(J Korean Radiol Soc 1998: 38: 319-327)

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Animal; Kidney; MR; Nephritis;

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KoreaMed
KAMS