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首页> 外文期刊>Acta Radiologica >Differential diagnosis of vertebral compression fracture using inphase/opposed-phase and short TI inversion recovery imaging
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Differential diagnosis of vertebral compression fracture using inphase/opposed-phase and short TI inversion recovery imaging

机译：同相/相对相和短时间TI反转恢复成像对椎体压缩性骨折的鉴别诊断

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摘要

Background: Magnetic resonance imaging (MRI) is highly useful for detecting diseases of the bone marrow. The sensitivity for detecting compression fracture is very high, but specificity is low for differential diagnosis between malignant and benign cases. Purpose: To evaluate the usefulness of in-phase/opposed-phase and short TI inversion recovery (STIR) magnetic resonance imaging (MRI) of bone marrow for differentiation between benign and malignant vertebral compression fractures. Material and Methods: A retrospective review of 66 patients with 70 vertebral compression fractures was performed. The signal intensity ratio (SIR) defined as SIR (opposed/in) was calculated from in-phase/opposed-phase MR images, and the signal intensity ratio as SIR (STIR) was calculated from STIR MR images. The relationships between values of SIR (opposed/in) and SIR (STIR) and the differential diagnosis of malignant vs. benign fractures were considered. Results: When SIR (opposed/in) was less than 1.0, bone marrow was benign. The bone marrow was malignant when both SIR (opposed/in) was greater than 1.0 and SIR (STIR) was less than 2.0. Conclusion: In cases of acute compression fracture, malignant bone marrow showed SIR(STIR) values less than 2.0 and SIR (in/opposed) greater than 1.0. In contrast, benign bone marrow showed SIR (STIR) values greater than 2.5. For chronic compression fracture, malignant bone marrow showed SIR (in/opposed) greater than 1.0. Bone marrow was benign in all cases with SIR (in/opposed) less than 1.0.
机译：背景：磁共振成像（MRI）对于检测骨髓疾病非常有用。检测压迫性骨折的敏感性很高，但对于良恶性病例的鉴别诊断特异性较低。目的：评估同相/相反相和短期TI反转恢复（STIR）骨髓磁共振成像（MRI）对区分良性和恶性椎体压缩性骨折的有用性。材料与方法：回顾性分析66例70例椎体压缩性骨折的患者。从同相/相反相MR图像中计算出被定义为SIR（相对/输入）的信号强度比（SIR），并且从STIR MR图像中计算出作为SIR（STIR）的信号强度比。考虑SIR（相对/内）和SIR（STIR）值与恶性与良性骨折的鉴别诊断之间的关系。结果：当SIR（相对/输入）小于1.0时，骨髓是良性的。当两个SIR（相对/输入）均大于1.0并且SIR（STIR）均小于2.0时，骨髓是恶性的。结论：在急性压迫性骨折病例中，恶性骨髓的SIR（STIR）值小于2.0，SIR（正反）大于1.0。相反，良性骨髓显示SIR（STIR）值大于2.5。对于慢性压迫性骨折，恶性骨髓显示SIR（相对/相对）大于1.0。在SIR（相对/相对）小于1.0的所有情况下，骨髓都是良性的。

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