| 杜宏洋,姜原,王可欣,张耀峰,王霄英,秦乃姗.基于乳头后线长度在头足位与内外斜位图像中的差值评估头足位乳腺X线摄影质量[J].中国医学影像技术,2025,41(12):2061~2064 |
| 基于乳头后线长度在头足位与内外斜位图像中的差值评估头足位乳腺X线摄影质量 |
| Difference of posterior nipple line length between craniocaudal and mediolateral oblique position images for evaluating quality of craniocaudal position mammography |
| 投稿时间：2025-06-15 修订日期：2025-10-03 |
| DOI：10.13929/j.issn.1003-3289.2025.12.026 |
| 中文关键词: 乳房X线摄影 体位 质量控制 乳头后线 |
| 英文关键词:mammography posture quality control posterior nipple line |
| 基金项目:吴阶平医学基金会临床科研专项资助基金(320.6750.2021-6-33)。 |
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| 中文摘要: |
| 目的 观察基于乳头后线(PNL)长度在乳腺头足(CC)位与内外斜(MLO)位图像中的差值评估CC位乳腺X线摄影质量的价值。方法 回顾性收集64例女性患者共114侧乳腺的228幅X线摄影图,包括CC位及MLO位各114幅。评估CC位图像质量,据此划分CC位合格组与CC位不合格组。对比组间CC位及MLO位图像的PNL长度及其差值,采用二元logistic回归分析筛选CC位图像质量的独立影响因素。绘制受试者工作特征曲线,计算曲线下面积(AUC),观察独立影响因素评估CC位图像质量的最佳阈值,并以精确率-召回率曲线及校准曲线评估其诊断效能及校准度。结果 CC位合格组93幅、CC位不合格组21幅;组间CC位图像中的PNL长度差异无统计学意义(P=0.818),而相应MLO位图像中的PNL长度及其差值差异均有统计学意义(P均＜0.05)。PNL长度在2种图像间的差值为CC位图像是否合格的独立影响因素(OR=1.26,P＜0.001)。以9.9 mm为PNL长度差值的最佳阈值,其评估乳腺CC位图像质量的AUC为0.909;精确率-召回率曲线及校准曲线显示PNL长度差值的诊断效能及拟合度均良好。结论 PNL长度在CC位与MLO位图像中的差值可用于评估乳腺CC位图像质量。 |
| 英文摘要: |
| Objective To explore the value of the difference of posterior nipple line (PNL) length between craniocaudal (CC) and mediolateral oblique (MLO) position images for evaluating the quality of CC position mammography. Methods A total of 228 mammography images (114 CC position and 114 MLO position) from 114 breasts of 64 female patients were retrospectively enrolled. The quality of CC position images wēre analyzed and classified as CC qualified group and CC unqualified group. PNL lengths in CC and MLO images were measured, and the differences between CC and MLO images were compared between groups. Then a binary logistic regression analysis was conducted to screen the independent influencing factors of the quality of CC position mammography. Receiver operating characteristic curve was drawn, and the area under the curve (AUC) was calculated to assess the optimal threshold of independent influencing factors for evaluating the quality of CC position images, and its diagnostic efficacy and calibration were analyzed using precision-recall curve and calibration curve. Results There were 93 images in CC qualified group and 21 in CC unqualified group. No significant difference of PNL length in CC position images was observed between groups (P=0.818), while significant difference of PNL length in MLO images and the difference of PNL length were found between groups (both P＜0.05). The difference of PNL length was an independent influencing factor of the quality of CC position mammography (OR=1.26, P＜0.001). Taken 9.9 mm as the optimal threshold of PNL length difference, its AUC for evaluating the quality of CC position images was 0.909. Precision-recall curve and calibration curve showed that the diagnostic efficacy and fitting degree of PNL length difference were both good. Conclusion Difference of PNL length between breast CC and MLO position images could be used to evaluate the quality of CC position mammography. |
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