MRI对于骨质疏松性椎体压缩性骨折的诊断价值(新鲜骨折与陈旧性骨折的鉴别)

为探讨MRI对骨质疏松性新鲜与陈旧椎体骨折的鉴别诊断意义,对17例老年人骨质疏松性椎体压缩性骨折于初诊及伤后3、6、12个月行胸腰椎MRI检查,记录其信号改变。并对其腰背痛程度进行评价。结果显示17例骨折椎体急性期均表现为T_1加权像低信号、T_2加权像高信号,伤后逐渐恢复正常。伤后不同时间MRI检查结果相差十分显著(P<0.01)。其腰背痛症状也逐渐减轻,伤后不同时间相差十分显著(P<0.01)。认为MRI可鉴别骨质疏松性新鲜与陈旧骨折,当骨质疏松患者同时存在多个椎体变形时则更具诊断价值。

MRI in Diagnosis of Osteoporotic Vertebral Fractures: Differentiation of Fresh from Old Fractures.

The role of MRI in differential diagnosis of fresh from old vertebral fractures in osteoporosis was studied. The fresh vertebral fractures were investigated in 17 senile osteoporotic patients on serial MRI at the first presentation, and 3, 6 and 12 months after injury.The signal intensity was recorded and the severity of backache assessed.Results showed that all fractured vertebral body showed low intensity on Tl - weighted images and high intensity on T2 - weighted images in the acute phase, then gradually changed their iso-intensity on both Tl - and T2 - weighted images, the difference of both the findings of MRI and backaches severity was highly significant between the duration of disease (P < 0.01) .With MRI, fresh of old vertebral fracture in asteoporotic patients will be indentified. MRI is of greater assistance for di-agnosis when osteoporotic patients have multiple collapses of vertebral bodies.