Magnetic resonance imaging diagnosis and new classification of the osteoporotic vertebral fracture.
Magnetic resonance imaging diagnosis and new classification of the osteoporotic vertebral fracture.
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DOI：
10.1007/s00776-003-0665-3
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发表时间：
2003-01-01
期刊：
影响因子：
--
通讯作者：
Kawai, Shinya
中科院分区：
文献类型：
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作者：
Kanchiku, Tsukasa;Taguchi, Toshihiko;Kawai, Shinya
本研究的目的是探讨磁共振成像（MRI）在诊断骨质疏松症患者椎体骨折时的有用性，并通过比较MRI和X线平片对此类骨折的诊断成功率来决定治疗策略。我们还设计了一个新的分类椎体骨折的基础上MRI表现的患者。研究对象为过去2年来在我科治疗的34例患者，共316例椎体相关骨折。他们包括30名女性和4名男性，平均年龄为82岁（范围61-95岁）。比较X线平片和MRI对椎体骨折的定位诊断率，并观察骨折椎体MRI信号强度的变化。矢状面T1加权像信号改变区分为6种类型：全、前、后、上级、下、中央。MRI对椎体骨折的定位诊断率为98%，优于X线平片的87%。椎体内信号强度变化显示下型和上级型无椎管内突出，神经系统稳定;但全型和后路型椎管内突出发生率高。
The purpose of this study was to investigate the usefulness of magnetic resonance imaging (MRI) in the diagnosis of, and when deciding on treatment policies for, vertebral fractures in patients with osteoporosis by comparing the diagnostic success rates for such fractures using MRI and plain radiographs. We also devised a new classification of vertebral fractures in osteoporotic patients based on MRI findings. The subjects were 34 patients with a total of 316 osteoporosis-related vertebral fractures treated in our department during the past 2 years. They consisted of 30 women and 4 men with an average age of 82 years (range 61-95 years). The site diagnostic rates of plain radiographs and MRI for the vertebral fractures were compared, and changes in signal intensity of the fractured vertebrae in MRI were examined. The areas of change in signal intensity in T1-weighted sagittal images were classified into six types: total, anterior, posterior, superior, inferior, central. The site diagnostic rate for vertebral fractures was 98% for MRI, which was better than the 87% obtained with plain radiographs. Changes in signal intensity in the vertebrae showed no intraspinal protrusion in the inferior and superior types, and neurological stability was achieved; but there was a high frequency of intraspinal protrusion in the total and posterior types.