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1.淄博一四八医院骨科二区,山东 淄博 255300
2.山东大学齐鲁医院骨科,山东 济南 250063
宋元礼,E-mail:19217447855@163.com
收稿:2025-08-17,
网络首发:2026-07-31,
纸质出版:2026-08-25
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徐凯,宋元礼,孟宁波等.腰椎MRI成像筛查骨质疏松症的临床研究[J].局解手术学杂志,2026,35(08):722-726.
XU Kai,SONG Yuan-li,MENG Ning-bo,et al.Clinical study of lumbar MRI screening for osteoporosis[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2026,35(08):722-726.
徐凯,宋元礼,孟宁波等.腰椎MRI成像筛查骨质疏松症的临床研究[J].局解手术学杂志,2026,35(08):722-726. DOI: 10.11659/jjssx.08E025064.
XU Kai,SONG Yuan-li,MENG Ning-bo,et al.Clinical study of lumbar MRI screening for osteoporosis[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2026,35(08):722-726. DOI: 10.11659/jjssx.08E025064.
目的
2
探究MRI的机会性应用在识别需进一步行骨骼健康评估的腰椎手术患者中的临床价值。
方法
2
回顾性分析2020年1月至2025年1月在淄博一四八医院连续接受术前骨健康优化(BHO)评估的83例患者的临床资料,所有患者术前均行无对比剂T1加权MRI检查及双能X射线吸收测定法(DXA)检查。根据WHO骨密度T值标准及临床骨质疏松症定义,将患者分为正常骨组(21例)、骨量减少组(34例)和骨质疏松组(28例)。采用全节段椎体骨质量(VBQ)评分、单节段VBQ评分、VBQ(脂肪)评分和信噪比(SNR)对MRI图像进行评估,同时收集骨折风险评估工具(FRAX)风险因素及骨小梁评分(TBS)指标。
结果
2
不同骨密度组患者的最低T值、TBS和全节段VBQ、单节段VBQ、VBQ(脂肪)评分及SNR比较,差异均具有统计学意义(
P
<
0.05);其中全节段与单节段VBQ评分随骨密度降低呈阶梯式升高,组间两两比较差异均有统计学意义(
P
<
0.05)。
Pearson
相关性分析显示,患者最低T值(
r
=-0.64,
P
<
0.001)、TBS(
r
=-0.51,
P
<
0.001)与全节段VBQ评分均呈显著负相关。受试者工作特征(
ROC
)曲线分析显示,全节段VBQ、单节段VBQ、VBQ(脂肪)评分和SNR诊断骨质疏松症的曲线下面积(
AUC
)分别为0.806(95%
CI
:0.700~0.911)、0.779(95%
CI
:0.670~0.888)、0.608(95%
CI
:0.475~0.742)和 0.586(95%
CI
:0.461~0.711)。以最大约登指数确定的最佳诊
断阈值为:全节段VBQ评分2.95分(敏感度91%,特异度60%),单节段VBQ评分3.06分(敏感度91%,特异度44%)。FRAX高风险患者占比25.3%(21/83),其VBQ评分显著高于低风险患者(
P
<
0.001)。各组患者感兴趣区域(ROI)平均信号强度及标准差比较,差异有统计学意义(
P
<
0.001)。
Pearson
相关性分析显示,ROI平均信号强度与最低T值呈负相关(
r
=-0.58,
P
<
0.001)。
结论
2
腰椎MRI成像可用于筛查骨质疏松症,VBQ评分≥3分可作为识别需额外行DXA检查和骨骼健康干预的实用阈值,单节段VBQ评分因简便快速更适合临床推广。
Objective
2
To investigate the clinical value of opportunistic application of MRI in identifying lumbar surgery patients who need further bone health assessment.
Methods
2
A retrospective analysis was conducted on the clinical data of 83 patients who received preoperative bone health optimization (BHO) evaluation in the 148th Hospital from January 2020 to January 2025. All patients underwent non-contrast T1-weighted MRI and dual-energy X-ray absorptiometry (DXA) before surgery. According to the WHO bone density T-score standard and clinical definition of osteoporosis,patients were divided into the normal bone group (21 cases),osteopenia group (34 cases) and osteoporosis group (28 cases). MRI images were evaluated by whole-segment vertebral bone quality (VBQ) score,single-segment VBQ score,VBQ (fat) score and signal-to-noise ratio (SNR). Meanwhile,risk factors of fracture risk assessment tool (FRAX) and trabecular bone score (TBS) indicators were collected.
Results
2
There were significant differences in the lowest T value,TBS, whole-segment VBQ scores,single-segment VBQ score,VBQ (fat) score and SNR among different bone density groups (
P
<
0.05). Among them, the VBQ scores of the whole segment and the single segment increased in a stepwise manner with the decrease of bone mineral density, and the pairwise comparisons between groups showed statistically significant differences (
P
<
0.05).
Pearson
correlati
on analysis showed that the lowest T value (
r
=-0.64,
P
<
0.001) and TBS (
r
=-0.51,
P
<
0.001) of patients were significantly negatively correlated with the whole-segment VBQ score.
Receiver operating characteristic
(
ROC
) curve analysis showed that the
area under the curve
(
AUC
) of whole-segment VBQ score, single-segment VBQ score, VBQ (fat) score, and SNR for diagnosing osteoporosis were 0.806 (95%
CI
: 0.700 to 0.911), 0.779 (95%
CI
: 0.670 to 0.888), and 0.608 (95%
CI
: 0.475 to 0.742) and 0.586 (95%
CI
: 0.461 to 0.711), respectively. The optimal diagnostic thresholds determined by the maximum Youden index were as follows: the whole-segment VBQ score is 2.95 points (sensitivity 91%, specificity 60%), and the single-segment VBQ score is 3.06 points (sensitivity 91%, specificity 44%). The proportion of high-risk FRAX patients was 25.3% (21/83), and their VBQ score was significantly higher than that of low-risk patients (
P
<
0.001). There were statistically significant differences in the average region of interest(ROI) signal intensity and standards deviation among the groups of patients (
P
<
0.001).
Pearson
correlation analysis showed that the average ROI signal intensity was negatively correlated with the lowest T value (
r
=-0.58,
P
<
0.001).
Conclusion
2
Lumbar MRI can be used to screen for osteoporosis. VBQ score of ≥3 points can serve as a practical threshold for identifying the need for additional DXA examination and bone health intervention.The single-segment VBQ score is more suitable for clinical promotion due to its simplicity and speed.
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