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中华临床医师杂志(电子版) ›› 2021, Vol. 15 ›› Issue (10) : 760 -767. doi: 10.3877/cma.j.issn.1674-0785.2021.10.008

乳腺癌·临床研究

以标本排水法为金标准比较不同方法测量乳房体积准确性的前瞻性研究
李兆悦1, 温冰1, 李盟1, 刘倩2,()   
  1. 1. 100034 北京,北京大学第一医院烧伤整形科
    2. 100034 北京,北京大学第一医院乳腺疾病中心
  • 收稿日期:2021-07-30 出版日期:2021-10-15
  • 通信作者: 刘倩
  • 基金资助:
    北京医学奖励基金会中青年基金项目(2018-0304)

The accuracy of four methods of breast volume measurement compared with specimen volume: a prospective study

Zhaoyue Li1, Bing Wen1, Meng Li1, Qian Liu2,()   

  1. 1. Department of Plastic and Burn Surgery, Peking University First Hospital, Beijing 100034, China
    2. Breast Disease Center, Peking University First Hospital, Beijing 100034, China
  • Received:2021-07-30 Published:2021-10-15
  • Corresponding author: Qian Liu
引用本文:

李兆悦, 温冰, 李盟, 刘倩. 以标本排水法为金标准比较不同方法测量乳房体积准确性的前瞻性研究[J]. 中华临床医师杂志(电子版), 2021, 15(10): 760-767.

Zhaoyue Li, Bing Wen, Meng Li, Qian Liu. The accuracy of four methods of breast volume measurement compared with specimen volume: a prospective study[J]. Chinese Journal of Clinicians(Electronic Edition), 2021, 15(10): 760-767.

目的

以排水法测量全乳房切除标本结果为乳房体积金标准,探讨线性测量法、间接测量法、CT测量法及MRI测量法与金标准的一致性,为提高乳房重建率提供临床思路。

方法

以2020年1月至2021年2月于北京大学第一医院行乳房单纯切除术的女性乳腺癌患者为研究对象,在术前收集线性测量法、间接测量法、CT测量法及MRI测量法得到的乳房体积数据,以排水法测量全乳房切除标本体积作为金标准。利用相关性分析、线性回归和Bland-Altman分析分别对4种测量方法与金标准的相关性进行检验分析。

结果

研究共入组47例患者(49侧乳房),线性测量法、间接测量法、CT测量法和MRI测量法的相关系数r值分别为0.625、0.916、0.994、0.995(P<0.001),线性回归系数R2分别为0.378、0.835、0.982、0.989(P<0.001),4种方法与金标准均显著相关。Bland-Altman分析提示4种方法与标本排水法显著相关。

结论

线性法、间接法、CT法及MRI法测量乳房体积与标本排水法测量结果显著相关,MRI法的准确性最好,CT法亦有较高的临床应用价值。

Objective

To prospectively compare the accuracy of four different methods (anthropometric, indirect, CT and MRI), with the mastectomy specimen volume as the gold standard, and provide clinical ideas to increase the rate of immediate breast reconstruction.

Methods

The patients who were diagnosed with breast cancer and received mastectomy at Peking University First Hospital between January 2020 and February 2021 entered the prospective study. Breast volumes were measured preoperatively by four different methods (anthropometric, indirect, CT and MRI). Specimen volume after mastectomy was measured with the water displacement method (the gold standard) in the operation room. The results were analyzed by correlation analysis. Linear regression and Bland-Altman analysis were also used to evaluate the consistency of the four methods and the gold standard respectively.

Results

A total of 47 patients (49 breasts) were enrolled in the prospective study. The correlation coefficients r of anthropometric, indirect, CT and MRI measurement methods were 0.625, 0.916, 0.994 and 0.995 (P<0.001), respectively; the linear regression coefficients R2 were 0.378, 0.835, 0.982 and 0.989 (P<0.001), respectively. The Bland-Altman analysis also indicated that the four methods were significantly correlated with the gold standard.

Conclusion

The measurements of breast volume by four methods including anthropometric, indirect, CT and MRI are significantly correlated with the specimen volume. The accuracy of MRI is the best while CT has a higher clinical application value.

图1 MRI乳房三维重建效果。图a为外侧观;图b为后外侧观;图c为头侧观
图2 CT乳房三维重建效果(与MRI法同一患者的重建图像)。图a为外侧观;图b为后外侧观;图c为头侧观
表1 47例女性乳腺癌患者基线资料
表2 不同方法测量乳房平均体积及相关性分析
表3 不同方法测量乳房体积与金标准的线性回归分析
图3 4种乳房体积测量方法与标本排水法(金标准)的线性回归分析。蓝色线为线性回归趋势线,红色线为y=x辅助线;图a为线性测量法;图b为间接测量法;图c为CT测量法;图d为MRI测量法
图4 4种乳房体积测量方法与标本排水法(金标准)的Bland-Altman图。图a为线性测量法;图b为间接测量法;图c为CT测量法;图d为MRI测量法;BI测量为breast idea volume estimator,即间接测量法
表4 5种测量方法的成本比较
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