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논문 기본 정보

자료유형
학술저널
저자정보
황금주 (연세대학교 의과대학 진단방사선과학교실)
저널정보
대한영상의학회 대한방사선의학회지 대한방사선의학회지 제34권 제3호
발행연도
1996.1
수록면
425 - 432 (8page)

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Purpose : To assess the frequency and pattern of disc enhancement of lumbar spine on enhanced MR images and todetermine whether enhanced MR images are useful for locating internal disc lesions. Materials and Methods : MRimages of a total of 225 discs from 45 patients were reviewed. Fifteen discs from 15 patients who had previouslyundergone an operation were excluded and 210 discs were therefore studied. T1-, T2-, and gadolinium-enhancedT1-weighted images were obtained after intravenous injection of Gd-DTPA(0.2 ml/kg). Findings were analyzedretrospectively. Results : Sixty-nine(32.6%) of 210 discs showed enhancement. The pattern of enhancement wasintradiscal(linear or nodular) or extradiscal. Of 165 morphologically normal discs, 34(20.6%) discs were enhanced; 32 showed linear and two showed nodular enhancement. All of six ruptured discs were enhanced. Six patients wereoperated on after MRI study ; one case of intradiscal linear enhancement revealed a bulging disc, three of fivepatients were confirmed on surgery as having ruptured discs in view of the extradiscal enhancement and the othertwo patients were confirmed having protruded discs. Conclusion : The pattern of disc enhancement is classifiedinto intradiscal and extradiscal. The former is further classified into linear and nodular. Gd-DTPA enhanced MRimages may be helpful in diagnosing ruptured discs and in detecting pathologic conditions in those patients whosediscs appear to be morphologically normal before enhancement.

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