摘要
传统X光胶片乳房摄像一向都是乳癌筛检的黄金准则。但是对于美国超过40％乳房组织密度大的妇女而言，该方法不再有效，因为组织在标准乳房X光拍摄胶片上显示打亮白香这样使肿瘤不容易被发现。这对于很大比例的一部分处于危险之中的病人来说是个很大的难题，尤其对于那些遗传上患癌症可能性加大的年轻妇女更是如此。
The gold standard for breast cancer screening has always been conventional film mammography using X-rays. But for more than 40 per cent of women in the US who havedense breast tissue, the method is ineffective as it shows up bright white on standard mammography film, making harder to detect tumours. The problem is an issue of great concern to a significant proportion of patients at risk, notably those younger women who have a genetically increased likelihood of contracting cancer.
