中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (21): 5597-5604.doi: 10.12307/2026.696

• 骨与关节图像与影像 bone and joint imaging • 上一篇    下一篇

不同扩散敏感系数弥散加权成像对脊柱结核与布氏杆菌性脊柱炎的诊断价值

孙  娜1,王  辉2,赵古月1,宇洪浩3   

  1. 中国医科大学附属盛京医院,1放射科,3骨科,辽宁省沈阳市  110004;2徐州市第一人民医院放射科,江苏省徐州市  221002
  • 接受日期:2025-05-19 出版日期:2026-07-28 发布日期:2026-03-05
  • 通讯作者: 孙娜,硕士,医师,中国医科大学附属盛京医院放射科,辽宁省沈阳市 110004
  • 作者简介:孙娜,女,1986年生,辽宁省本溪市人,汉族,硕士,医师,主要从事影像诊断方面的研究。

Diagnostic value of diffusion-weighted imaging with different diffusion sensitivity coefficients for spinal tuberculosis and Brucellar spondylitis

Sun Na1, Wang Hui2, Zhao Guyue1, Yu Honghao3   

  1. 1Department of Radiology, 3Department of Orthopedics, Shengjing Hospital Affiliated to China Medical University, Shenyang 110004, Liaoning Province, China; 2Department of Radiology, Xuzhou No.1 People's Hospital, Xuzhou 221002, Jiangsu Province, China
  • Accepted:2025-05-19 Online:2026-07-28 Published:2026-03-05
  • Contact: Sun Na, MS, Physician, Department of Radiology, Shengjing Hospital Affiliated to China Medical University, Shenyang 110004, Liaoning Province, China
  • About author:Sun Na, MS, Physician, Department of Radiology, Shengjing Hospital Affiliated to China Medical University, Shenyang 110004, Liaoning Province, China

摘要:

文题释义:

磁共振弥散加权成像:基于水分子布朗运动特性,通过施加梯度脉冲检测组织中水分子扩散差异,不仅能够早期发现骨质及周围软组织的信号异常,还能够对病变的侵袭范围、程度及稳定性进行评估。在具有细胞膜等结构的组织中,水分子的运动往往会受到限制。不同扩散敏感系数(b值)下的磁共振弥散加权成像能够反映组织内水分子的弥散特性,从而间接反映组织的微观结构变化。而合适的b值对脊柱结核与布氏杆菌性脊柱炎的诊断具有重要意义。
脊柱感染:是病原体侵袭脊柱组织引发的炎症性疾病,核心病理表现为骨质破坏、椎间盘炎症及椎旁软组织受累。脊柱结核以中心型和边缘型骨质破坏为主,布氏杆菌性脊柱炎则以多灶性骨质破坏为特征。脊柱结核椎旁脓肿的脓液中蛋白质含量高于布氏杆菌性脊柱炎,水分子扩散更为受限。

摘要
背景:脊柱结核与布氏杆菌性脊柱炎的临床表现相似,但治疗方案迥异,传统影像学检查难以精准鉴别;弥散加权成像通过表观扩散系数量化组织水分子扩散差异,或为早期鉴别提供新途径,但不同扩散敏感系数下表观扩散系数与炎症指标的关联性尚不明确。
目的:探究不同扩散敏感系数弥散加权成像对脊柱结核与布氏杆菌性脊柱炎的临床诊断价值,并分析表观扩散系数与炎症指标的关联性。
方法:选择2021年6月至2024年6月于中国医科大学附属盛京医院收治并明确诊断的60例脊柱结核患者与60例布氏杆菌性脊柱炎患者作为研究对象,其中脊柱结核组男35例,女25例,平均(53.36±5.45)岁;布氏杆菌性脊柱炎组男38例,女22例,平均(55.47±6.43)岁。采用曲线下面积评估不同扩散敏感系数下弥散加权成像-表观扩散系数鉴别脊柱结核、布氏杆菌性脊柱炎的诊断价值;Pearson相关性分析检验变量之间的关系;应用配对t检验对操作者A和B之间的表观扩散系数进行比较;采用组内相关系数分析不同操作者及同一操作者测量的一致性。
结果与结论:①两组患者的血沉、C-反应蛋白、白细胞水平、腰椎及胸椎受累部位的分布差异有显著性意义(P < 0.05),脊柱结核最易累及腰椎与胸椎,布氏杆菌性脊柱炎最易累及腰椎;②不同扩散敏感系数下脊柱结核组患者病变椎体的表观扩散系数均显著高于布氏杆菌性脊柱炎组(P < 0.05);在不同扩散敏感系数下同一组别中,病变椎体、椎旁脓肿表观扩散系数相比差异有显著性意义(P < 0.05);③扩散敏感系数为400 s/mm2时表观扩散系数的鉴别诊断效能最大,敏感度为95.00%,特异度为96.67%;④不同操作者脊柱结核患者与布氏杆菌性脊柱炎患者弥散加权成像-表观扩散系数的组内相关系数均大于0.75;⑤Pearson相关性分析显示,不同扩散敏感系数下病变椎体的表观扩散系数(1.03×10-3-1.49×10-3 mm2/s)与血沉、C-反应蛋白、白细胞水平均存在显著相关性(P < 0.001);⑥说明弥散加权成像是一种操作简便、稳定性较高的脊柱结核与布氏杆菌性脊柱炎的检测方法,扩散敏感系数为400 s/mm2时的弥散加权成像-表观扩散系数鉴别脊柱结核与布氏杆菌性脊柱炎的诊断效能最大,并且不同扩散敏感系数下病变椎体的表观扩散系数与炎症状态关联密切。


中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程

关键词: 脊柱结核, 布氏杆菌性脊柱炎, 弥散加权成像, 扩散敏感系数, 炎症状态

Abstract: BACKGROUND: Although the clinical manifestations of spinal tuberculosis and Brucella spondylitis are similar, the treatment options are different, and traditional imaging examinations are difficult to accurately distinguish them. Diffusion-weighted imaging can quantify the diffusion differences of water molecules in tissues through apparent diffusion coefficient, which may provide a new way for early identification. However, the correlation between apparent diffusion coefficient and inflammatory markers under different diffusion sensitivity coefficients is not clear.
OBJECTIVE: To explore the clinical value of diffusion-weighted imaging with different diffusion sensitivity coefficients in the diagnosis of spinal tuberculosis and Brucella spondylitis, and to analyze the correlation between apparent diffusion coefficient and inflammatory indicators.
METHODS: Sixty patients with spinal tuberculosis and 60 patients with Brucella spondylitis who were admitted and diagnosed in Shengjing Hospital Affiliated to China Medical University from June 2021 to June 2024 were randomly selected as the research objects. Among them, there were 35 males and 25 females in the spinal tuberculosis group, with an average age of (53.36±5.45) years. There were 38 males and 22 females in the Brucella spondylitis group, with an average age of (55.47±6.43) years. The area under the curve was used to evaluate the diagnostic value of diffusion-weighted imaging-apparent diffusion coefficient under different diffusion sensitivity coefficients in differentiating spinal tuberculosis from Brucella spondylitis. Pearson correlation analysis was used to test the relationship between variables. The apparent diffusion coefficients between operator A and operator B were compared using a paired t-test. The intraclass correlation coefficient was used to analyze the consistency of measurement between different operators and the same operator.
RESULTS AND CONCLUSION: (1) There were significant differences in erythrocyte sedimentation rate, C-reactive protein, white blood cell level, and the distribution of lumbar and thoracic vertebrae involved between the two groups (P < 0.05). Spinal tuberculosis was most likely to affect the lumbar and thoracic vertebrae, and Brucella spondylitis was most likely to affect the lumbar spine. (2) The apparent diffusion coefficients of different vertebral bodies in spinal tuberculosis group were significantly higher than those in Brucella spondylitis group under different diffusion sensitivity coefficients (P < 0.05). In the same group, the apparent diffusion coefficient of lesion vertebral body and paravertebral abscess was significantly different under different diffusion sensitivity coefficients (P < 0.05). (3) When the diffusion sensitivity coefficient was 400 s/mm2, the apparent diffusion coefficient had the highest differential diagnostic efficacy. The sensitivity was 95.00% and the specificity was 96.67%. (4) The intraclass correlation coefficients of diffusion weighted imaging-apparent diffusion coefficient in patients with spinal tuberculosis and patients with Brucella spondylitis by different operators were all greater than 0.75. (5) Pearson correlation analysis showed that the apparent diffusion coefficient of the diseased vertebral body under different diffusion sensitivity coefficients (1.03×10-3-1.49×10-3 mm2/s) 
was significantly correlated with erythrocyte sedimentation rate, C-reactive protein, and white blood cell level (P < 0.001). (6) It is concluded that diffusion weighted imaging is a simple and stable method for the detection of spinal tuberculosis and Brucella spondylitis. When the diffusion sensitivity coefficient is 400 s/mm2, the apparent diffusion coefficient of diffusion weighted imaging has the highest diagnostic efficiency for the differentiation of spinal tuberculosis and Brucella spondylitis, and the apparent diffusion coefficient of the diseased vertebral body under different diffusion sensitivity coefficients is closely related to the state of inflammation.

Key words: spinal tuberculosis, Brucella spondylitis, diffusion-weighted imaging, diffusion sensitivity coefficient, inflammatory state

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