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据报道,在年龄因素被控制后,乳腺摄片图像的密度越浓,发生乳癌的危险性越高,但作为普查指标的密度越深,X线检测敏感性越低,侵犯性强、分化差的乳癌易见于摄片密度深的乳腺。本研究目的是评价乳腺摄片图像在普查中及普查阴性病例随访中发现乳癌危险性的作用。对象与方法采用2个同时进行的巢式病例对照研究的方法。合格样本来源于29193名参加新加坡乳腺普查计划(SB-
According to reports, after the age factor is controlled, the higher the density of breast radiography images, the higher the risk of developing breast cancer, but the deeper the density as a census index, the lower the sensitivity of X-ray detection, and the strong intrusiveness and poor differentiation. Breast cancer is easy to see in deep breasts. The purpose of this study was to evaluate the role of breast radiography in the detection of breast cancer risk in follow-up surveys and negative cases. Subjects and Methods Two simultaneous nested case-control studies were performed. Qualified sample from 29,193 participants in Singapore breast screening program (SB-