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µÎºÎ ¿Ü»ó ȯÀÚ¿¡¼­ Àڱ⠰ø¸í ¿µ»óÀÇ T2 °­Á¶ ¿µ»ó (T2 FFE), FLAIR ¿µ»ó,È®»ê °­Á¶ ¿µ»ó°£ÀÇ º´º¯ ¹ß°ß°ú º´º¯ ¸í·á¼ºÀÇ ºñ±³ A Comparison of Lesion Detection and Conspicuity on T2-weighted Images (T2 FFE), FLAIR and Diffusion-weighted Images in Patients with Traumatic Brain Injury

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±ÇÀº¿ë/Eun Yong Kwon ÀÌ¸í¼·/±è¸í¼ø/È«Àμö/±è¿µÁÖ/Ȳ ±Ý/Myeong Sub Lee/Myung Soon Kim/In Soo Hong/Young Ju Kim/Gum Whang

Abstract

¸ñÀû:¿Ü»ó¼º ³úº´º¯¿¡¼­ T2 °­Á¶¿µ»ó(T2 Fast Field Echo),FLAIR(Fluid Attenuated Inversion
Recovery)¿µ»ó,È®»ê °­Á¶¿µ»óÀÇ º´º¯ ¹ß°ß(lesion detection)°ú º´º¯ ¸í·á¼º(lesion con-
spicuity)À» ºñ±³ÇÏ¿´´Ù.
´ë»ó°ú ¹æ¹ý:³úÀÇ Àڱ⠰ø¸í ¿µ»óÀ» ½ÃÇà ¹ÞÀº µÎºÎ ¿Ü»ó ȯÀÚ 33¸íÀ» ´ë»óÀ¸·Î ÇÏ¿´°í ¼ö»ó
ÈÄ MRIÃÔ¿µ±îÁöÀÇ ±â°£ÀÌ 7 ¿¡¼­ 58ÀÏ À̾ú´Ù.T2 FFE ¿µ»ó,FLAIR¿µ»ó°ú È®»ê °­Á¶¿µ»óÀ»
¾ò ¾úÀ¸¸ç 3°¡Áö Àڱ⠰ø¸í ¿µ»ó ±â¹ý¿¡¼­ ÀÌ»ó ½ÅÈ£ °­µµ¸¦ º¸ÀÌ´Â Ãà³» º´º¯°ú Ãà¿Ü º´º¯ÀÇ
¹ß°ß°ú ¸í·á¼ºÀ» ºñ±³ÇÏ¿´´Ù.
°á°ú:33¸í ÃÑ 108°³(Ãà³» º´º¯ 86°³,Ãà¿Ü º´º¯ 22°³)ÀÇ º´º¯ÀÌ ¹ß°ßµÇ¾ú°í T2 FFE ¿µ»ó¿¡
¼­´Â 88°³(81%),FLAIR ¿µ»ó¿¡¼­´Â 91°³(84%),È®»ê°­Á¶¿µ»ó¿¡¼­´Â 57°³(52%)ÀÇ º´º¯ÀÌ
°üÂûµÇ¾ú´Ù.Á¡»ó ÃâÇ÷ÀÎ °æ¿ì´Â 16°³ÀÇ º´º¯ÀÌ T2 FFE ¿µ»ó¿¡¼­ ¹ß°ßµÇ¾ú°í FLAIR¿µ»ó,È®
»ê °­Á¶¿µ»ó¿¡ ¼­´Â °¢°¢ 1°³ÀÇ º´º¯ÀÌ ¹ß°ßµÇ¾ú´Ù .Ãà¿Ü º´º¯ÀÇ °æ¿ì¿¡´Â T2 FFE ¿µ»ó¿¡¼­
´Â 16°³(72%),FLAIR ¿µ»ó¿¡¼­´Â 21°³ (95%),È®»ê °­Á¶ ¿µ»ó¿¡¼­´Â 11°³(50%)¸¦ ¹ß°ßÇß
´Ù.º´º¯ÀÇ ¸í·á¼ºÀº FLAIR ¿µ»óÀÌ T2 FFE ¿µ»ó,È®»ê °­Á¶¿µ»ó°ú ºñ±³½Ã º´º¯ ¸í·á¼ºÀÌ ³ô
Àº ¿¹°¡ 42°³ º´º¯(75%)¿´´Ù.Ãà¿Ü º´º¯ÀÎ °æ¿ì FLAIR ¿µ»óÀº T2 FFE ¿µ»ó,È®»ê°­Á¶¿µ»ó
°ú ºñ±³½Ã °¢ °¢ 11°³(91%)¿¡¼­ º´º¯ ¸í·á¼ºÀÌ ³ô¾Ò´Ù.
°á·Ð:µÎºÎ ¿Ü»ó ȯÀÚÀÇ Áø´Ü¿¡¼­ FLAIR¿µ»óÀº Ãà³»/Ãà¿Ü º´º¯ÀÇ ¹ß°ß°ú º´º¯ ¸í·á¼ºÀÌ ´Ù¸¥
¿µ »ó ±â¹ý¿¡ ºñÇØ ¿ì¿ùÇÔÀ» º¸¿´´Ù.Á¡»ó ÃâÇ÷ÀÇ Áø´ÜÀº T2 FFE ¿µ»óÀÌ ´õ À¯¸®ÇÏ¿´´Ù.È®»ê
°­ Á¶ ¿µ»óÀº ÀϺΠº´º¯¿¡¼­ ¿ì¿ùÇÔÀ» º¸¿´´Ù.ÀÌ»óÀÇ °á°ú·Î T2 FFE ¿µ»ó,FLAIR ¿µ»ó°ú È®
»ê °­ Á¶ ¿µ»óÀÇ ´Ù¾çÇÑ ¿µ»ó±â¹ýÀº ¿Ü»ó¼º ³úº´º¯ÀÇ Áø´Ü¿¡¼­ »óÈ£ º¸¿ÏÀûÀÎ ¿ªÇÒÀ» ÇÏ´Â À¯
¿ëÇÑ Áø´Ü ¹æ¹ýÀÌ µÉ °ÍÀÌ´Ù.

Purpose: To compare the lesion detectability and conspicuity in traumatic brain injury on T-2 FFE , FLAIR and diffusion weighted imaging (DWI) sequences.
Materials and Methods: Thirty-three patients who underwent MR brain imaging after traumatic brain injury were reviewed. T-2 FFE, FLAIR and diffusion-weighted MR sequences were obtained and were compared in terms of the detectability and
conspicuity
of
intra- and extra- axial lesions which showed abnormal signal in-tensities.
Results: Among 33 patients, a total of 108 lesions were found. T-2 FFE sequences detected 88(81%) of these, FLAIR sequences 91(84%), and diffusion-weighted sequences 57(52%). In the case of petechial hemorrhagic lesions, 16 were detected by T-2
FFE
imaging but only one by FLAIR and one by DWI. Sixteen extra-axial lesions (73%) were detected by T-2 FFE, 21 (95%) by FLAIR, and 11(50%) by DWI. Lesion conspicuity on FLAIR images was judged superior to that on T-2 FFE and diffusion-weighted
images
in
42 lesions (75%). Eleven ex-tra- axial Lesions (92%) were more conspicuous on FLAIR than on T-2 FFE and DWI.
Conclusion: For detecting traumatic brain lesions and determining their conspicuity, FLAIR imaging was more useful than T-2 FFE and diffusion weighting, while T-2 FFE imaging was more sensitive for the detection of petechial hemorrhage. Although
diffusion-weighted imaging was generally inferior to both FLAIR and T-2 FFE in terms of lesion detection and conspicuity, for some lesions it was superior. The results suggest that images obtained at each pulse sequence can be used as
complementary
imaging sequences, and that in traumatic brain injury, the acquisition of FLAIR, T-2 FFE and diffusion-weighted images is useful.

Å°¿öµå

Brain; MR; Brain; injuries; Magnetic resonance (MR);

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