RATIONALE AND OBJECTIVES: The authors evaluated the role of magnetization transfer imaging in differentiation of @entity3478 , with special emphasis on @entity5 . MATERIALS AND METHODS: Fifty-one @entity1 with @entity5 or @entity5 -like lesions who had undergone magnetic resonance (MR) imaging were included. The @entity5 were divided into three groups according to their gross appearance and the origin of tissue: cyst, @entity5 , and noncartilaginous solid @entity5 . A gradient-recalled acquisition in the steady state sequence was used for MR imaging, and examinations were performed both with and without off-resonance magnetization transfer pulses. Magnetization transfer ratios were obtained as an indicator of magnetization transfer effect of the lesions and were compared. Then, the magnetization transfer ratios of all @entity5 in the @entity5 group were compared. The magnetization transfer ratios of benign and malignant solid @entity5 were also compared. RESULTS: The mean magnetization transfer ratio for @entity5 was 0.31 +/- 0.08 (standard deviation), and that of @entity5 was 0.07 +/- 0.03 and 0.40 +/- 0.14, respectively. Comparisons between the three groups showed statistically significant intergroup differences in magnetization transfer ratio (P < .05). In the @entity5 category, @entity83 and @entity258 had a lower magnetization transfer effect than @entity11262 . The mean magnetization transfer ratios of benign (n = 28) and malignant (n = 18) @entity5 were 0.35 +/- 0.11 and 0.39 +/- 0.15, respectively; there was no statistically significant intergroup difference (P = .14). CONCLUSION: Magnetization transfer imaging could be useful for categorizing @entity3478 as cysts, @entity5 , or noncartilaginous solid @entity5 .

Role of magnetization transfer imaging in XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity3478 :: ('MESH:D001859', 'Disease') :: ['bone tumors'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'skeletal tumors', 'cysts and noncartilaginous solid tumors', 'cartilaginous tumors', 'cartilaginous tumor', 'tumors'] @entity83 :: ('MESH:D002812', 'Disease') :: ['enchondroma'] @entity11262 :: ('MESH:D018211', 'Disease') :: ['chondroblastoma and mesenchymal chondrosarcoma'] @entity258 :: ('MESH:D009800', 'Disease') :: ['low-grade chondrosarcoma']
@entity3478 :: (MESH:D001859,Disease) :: ['bone tumors']
