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fracture acuity?怎么理解?

医学英语版版主 · 最后编辑于 2022-12-24 · IP 江苏江苏
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这个帖子发布于 2 年零 185 天前,其中的信息可能已发生改变或有所发展。

Imaging of the spine is performed in all cases to confirm the fracture level, assess fracture acuity and evaluate for potential contraindications or technical difficulties. Initial imaging often involves conventional frontal or lateral radiographs or computed tomography (CT), yet the capacity of these modalities to assess fracture acuity is limited. Magnetic resonance imaging (MRI) is the investigation of choice. Unhealed acute fractures are optimally shown on a combination of fluidsensitive short-tau inversion recovery (STIR) or T2-weighted fat-saturated fast spin echo sequences, with T2 hyperintense signal representing bone marrow oedema and a T1 hypointense fracture line occasionally visible (Fig. 26.2). MRI allows for the assessment of the vertebral body posterior cortex, spinal canal and neural foramina and can evaluate for fracture retropulsion and epidural tumour extension. It may also identify fractures at other vertebral levels that may not be demonstrated on conventional radiographs. CT is a useful adjunct for pre-procedural imaging, particularly to assess the integrity of the posterior cortex.

为确认骨折节段、评估骨折角度及潜在的禁忌证或技术难度,所有患者均需脊柱成像。虽然初级的影像学检查包括常规的X 线正侧位片和CT检查,但是这些方法评估骨折角度的能力有限,最适合的检查方法是MRI检查。未愈合的新鲜骨折最好在在液体敏感的短时间反转恢复序列和T2加权脂肪饱和快速自旋回波序列显示:T2高信号代表骨髓水肿,T1低信号偶可见骨折线(图26.2)。MRI可评估椎体后皮质、椎管和神经孔的情况,并可评估椎体骨折后碎片移向椎管内和硬膜外肿瘤扩大的情况,还可以识别常规的X线片检查无法显示其他椎体的骨折情况。CT是术前成像有用的辅助检查手段,可以帮助评估椎体后皮质的完整性。


fracture acuity?怎么理解?谢谢

骨折 (1365)
水肿 (152)
硬膜外肿瘤
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