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À̵¿¿ì/Dong Woo Lee Á¤ÈÆ/ÀÌ»óÆò/ÃÖ±â¿Ï/À¯ÇüÅÂ/±è¿Áµ¿/ÀÌÁ¤±æ/±èÁ¾±â/Hoon Chung/Sang Pyung Lee/Ki Whan Choi/Hyung Tae Yeo/Ok Dong Kim/Jung Kil Rhee/Jong Ki Kim

Abstract

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ÀÇ °ËÃâ¿¡ ÁßÁ¡À» µÎ°í »ýü³» ¼ö¼Ò ÀÚ±â°ø¸í ºÐ±¤¹ýÀ» ¼öÇàÇÏ¿´´Ù. ÀüÀ̾Ï(n=3) ¼ö¸·Á¾
(n=7), ¾Ç¼ºµî±ÞÀÌ ´Ù¸¥ ¼º»ó¼¼Æ÷Á¾(n=11), ¼ö¼úÈÄÀç¹ß¾Ï(n=2), ±âŸ ´Ù¸¥ Á¾¾ç(n=10)¿¡ ´ëÇØ
ÀÚ±Ø ¿¡ÄÚ(Stimulated echo acquisition method, TE=30ms) ¹× ÀÌÁß ¿¡ÄÚ(Point resolved
spectroscopy. TE=272ms)±â¹ýÀ» »ç¿ëÇÏ¿© ÁÖ¾îÁø Á¾¾çÁ¶Á÷³»¿¡¼­ ¼ö¼Ò ½ºÆåÆ®·³À» ¾ò¾úÀ¸
¸ç ¹° ½ÅÈ£´Â È­ÇÐÀû ¿¡³ÊÁö º¯µ¿ ¼±Åà ÆÞ½º±â¹ý(Chemical shift selective saturation)À¸·Î
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µÇÁö ¾Ê°í ƯÀÌÇÏ°Ô ¾Ë¶ó´Ñ, ±Û·çŸ¹Î/±Û·çŸ¸ÞÀÌÆ® µîÀÇ ¾Æ¹Ì³ë»ê±â°¡ °ËÃâµÇ¾î ½Å°æÃÊÁ¾
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#ÃÊ·Ï#
To determine the spectral pattern of metabolites in 31 brain tumors in which the
presence of lipids, locate and additional intermediary metabolites had been detected , in
vivo1H-MR spectroscopy was performed. Metastasis(n=3), meningioma(n=7)
astrocytic tumors of different grades(n=11), postop recurrent tumors(n=2) and other
tumors(n=10) were examined using the stimulated echo(STEAM, TE=30ms) or double
spin echo technique(PRESS, TE=272ms) with CHESS pulse for water suppression. The
detection of lactate in astrocytic tumors correlated with a higher grade of malignancy,
and lipid was observed in most glioblastomas, Elevated lactate levels in tumors do not
simply originate in the necrotic region, but are related to the high glycolytic activity of
adequately perfused, viable neoplastic cells, Lipid signals were detected in high grade,
late stage brain tumors, indicating the need for enhanced phospholipid metabolism and
membrane degradation, respectively. The absence of lactate and presence of alanine,
glutamate/glutamine in most meningiomas distinguished them from schwannomas and
other glial tumors. Observation of the spectral pattern of metabolites in brain tumors in
which lipid and lactate has been detected might play an important prognostic role in the
management and differentiation of metastasis, glial tumors, tumor recurrence, and other
non-neoplastic diseases.

Å°¿öµå

1H-MRS; Brain tumor metabolism; Spectral pattern; Lactate; Lipid; Malignant grade;

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