乳腺癌保乳术后基于体表标记和触诊范围以及CT图像显示腺体勾画全

乳腺癌保乳术后基于体表标记和触诊范围以及CT图像显示

腺体勾画全乳靶区的比较

徐敏;李建彬;刘珊珊;王素贞;王玮;李奉祥;刘同海;于金明

【期刊名称】《中华肿瘤杂志》 【年(卷),期】2014(036)009

【摘要】Objective To compare the methods of delineating the whole breast target volume based on surface marks,palpation and glandular tissue on CT images,and to explore the contouring criteria after breast-conserving surgery.Methods In 15 patients with breast cancer after breast-conserving surgery,the whole breast target was delineated in 3D CT simulation images each by three different methods.The target volume delineated according to anatomical marks were named CTVan,according to breast palpation named CTVpa,and according to glandular mammary tissue showing by CT images named CTVgl.The volumes of CTVan,CTVpa and CTVgl,and the degree of inclusion (DI) and conformal index (CI) between the targets were measured.Results The mean volumes of CTVan,CTVpa and CTVgl were (792.23 ± 282.25) cm3,(618.33 ± 295.90) cm3 and (196.83 ± 117.62) cm3,respectively.The differences among the three methods were statistically significant (P ＜ 0.001).The difference between CTVan and CTVpa had no statistical significance (P =0.08),and both the differences between CTVan and CTVgl,and between CTVpa and CTVgl had statistical significance (both P