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논문 기본 정보

자료유형
학술저널
저자정보
우정주 (인제대학교 상계백병원 진단방사선과학교실)
저널정보
대한영상의학회 대한방사선의학회지 대한방사선의학회지 제33권 제5호
발행연도
1995.1
수록면
673 - 679 (7page)

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Purpose : To evaluate the MR image in the differentiation of benign and malignant lesion in compressionfractures of the vertebral body. Materials and Methods : MR images of 47 benign(acute traumatic within onemonth:19, chronic traumatic longer than one month or nontraumatic:28) and 21 metastatic compression fractures wererespectively reviewed in terms of margin of lesions, signal intensity, paraspinal mass formation, soft tissuechange, and involvement of posterior element of vertebra. MR images of T1-(T1WI) and T2*-weighted gradient echo(GE T2WI) sequences were obtained on 0.5 T unit in sagittal and axial orientation with 5mm section thickness.Results : The margin of benign compression fracture was usually indistinct (acute fracture: 90% (17/19), chronicfracture: 68% (19/28)), whereas it was sharply delineated in metastatic compression fracture(92%, 12/13) (p<0.001). Paraspinal mass was seen in both acute traumatic and metastatic compression fractures(acute fracture:26% (5/19), metastatic fracture: 52% (11/21) ). Soft tissue change was seen only in acute compression fractures(58%,11/19). Involvement of posterior element of vertebra was noted in metastatic fracture (71%, 15/21), acutefracture (32%, 6/19) and chronic fracture (7%, 2/28) Conclusion : On MR imaging, involvement of entire portion ofa given vertebral body, sharp margin between normal and abnormal areas in partially involved cases, paraspinalmass formation, and posterior element involvement are more frequently seen in metastatic compression fractures,which are considered to be useful in differentiation between benign and malignant causes of compression fracture.

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