Shanley Eoghan, Johnston Alison, Hillick Dearbhla, Ng Kin Cheung, Sugrue Michael
1 Breast Centre North West, Letterkenny University Hospital , Letterkenny, Donegal , Ireland.
2 National University of Ireland , Galway , Ireland.
Br J Radiol. 2018 Nov;91(1091):20180406. doi: 10.1259/bjr.20180406. Epub 2018 Jul 20.
: There are several limitations with current methods of breast volume measurement; principally relating to assumption of fixed shape forms. This study, utilizing computer aided volume estimates, developed a new method using the digital mapping of breast area and compares results to existing techniques of breast volume measurement and actual breast volume.
: 50 consecutive breast cancer patients had breast volume calculated from mammograms [craniocaudal (CC) and mediolateral oblique views]; using breast height, width, radius, area and compression thickness. Area was recorded using cursor measurement tool for AGFA® Impax™6 software. The new volumetric estimation is based on the basic formula for the volume of a solid. The technique was compared with three known breast volume estimation techniques. Subsequently, 15 patients undergoing mastectomy had pre-op breast volume calculated using this new method and 3 existing techniques; values were compared to fresh mastectomy weights/volumes.
: 50 patients, mean age 63.2 ± 14.4 (range 38-88) had breast volume estimation. The CC view appears to provide the best correlation with existing techniques. Scatterplots show a significant correlation of all the methods with the digital breast volume estimation method. Mastectomy volume compared with four breast volume techniques in n = 15, confined to the CC, shows good correlation between the digital technique and real volume. Scatterplots show significant correlation between digital breast volume estimation and mastectomy weight.
: This study provided a novel simple tool to estimate breast volume in patients.
: This may aid in planning cosmetic outcome and oncoplastic approaches in breast cancer and breast reduction surgery.
目前的乳房体积测量方法存在若干局限性；主要与固定形状假设有关。本研究利用计算机辅助体积估计，开发了一种使用乳房区域数字映射的新方法，并将结果与现有的乳房体积测量技术及实际乳房体积进行比较。
连续50例乳腺癌患者的乳房体积通过乳房X线照片[头尾位（CC）和内外斜位视图]计算得出；使用乳房高度、宽度、半径、面积和压缩厚度。使用AGFA® Impax™6软件的光标测量工具记录面积。新的体积估计基于固体体积的基本公式。该技术与三种已知的乳房体积估计技术进行了比较。随后，15例行乳房切除术的患者术前乳房体积采用这种新方法和3种现有技术进行计算；将这些值与新鲜乳房切除标本的重量/体积进行比较。
50例患者，平均年龄63.2±14.4（范围38 - 88岁）进行了乳房体积估计。CC视图似乎与现有技术具有最佳相关性。散点图显示所有方法与数字乳房体积估计方法之间存在显著相关性。在n = 15例局限于CC视图的患者中，乳房切除体积与四种乳房体积技术进行比较，结果显示数字技术与实际体积之间具有良好的相关性。散点图显示数字乳房体积估计与乳房切除标本重量之间存在显著相关性。
本研究提供了一种新颖且简单的工具来估计患者的乳房体积。
这可能有助于规划乳腺癌和乳房缩小手术中的美容效果和肿瘤整形方法。
